Mark Rober
Mark Rober
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SCIENCE CLASS #4- How to Waterproof Your Hand
Views 462K2 days ago
Lots of juicy demos relating to surface tension! NO CLASS THIS WEDS!! I'm filming one of my normal monthly videos that day. Back on Friday though!! Go check out Dianna's awesome channel- CHALLENGE- float as many paper clips as you can and then come up with a creative way to ruin the surface tension and have them all sink. Tag me on any social media ...
SCIENCE CLASS #3- Why is the Sky Blue?
Views 575K5 days ago
Let's get a better mental model beyond just "because blue light scatters more". I stream science LIVE M-W-F 1pm PT. Here is Sally's channel!! She is live streaming a series on evolutionary biology- BOSE will be sending out 8 pairs of their dope 700 headphones. 4 will go to people who post about our class on Insta, Twitter, FB or TikTok. 4 will go to my favorite...
SCIENCE CLASS #2- Does Farting Make You Weigh Less?
Views 909K7 days ago
This is a juicy one. 70% people get this one wrong. I stream science LIVE M-W-F 1pm PT. NEW PDF WITH A QUIZ FORM THAT WORKS NOW!!! CLASS- 2.pdf?dl=0
SCIENCE CLASS #1- WHY Does Helium Make Your Voice Higher?
Views 1.6M9 days ago
Live stream with demos your brain will enjoy where we answer a basic question every time. Does farting make you weigh more or less?!?! Place your guess and give me feedback too-
How To See Germs Spread (Coronavirus)
Views 12M14 days ago
Click here the most up-to-date info on Coronavirus COVID-19- Thanks to Skillshare for their support. Take this opportunity to invest in yourself with Skillshare! The first 500 people get 2 months FREE- Here is the Glo Germ powder I used (not sponsored). This would make for a great science object lesson-
Views 14MMonth ago
Get Honey for FREE and start saving money today- Also, check out their video with the boat drop here- More info coming soon!
Feeding Bill Gates a Fake Burger (to save the world)
Views 12MMonth ago
Sometimes the scientific method takes us to new frontiers. Thanks to Bill and Melinda Gates for partnering with me on this video. Check out the 2020 letter here: *MUSIC* 0:00 - Marimba Idea - Blue Wednesday 1:39 - Cereal Killa - Blue Wednesday 3:14 - Arrow - Andrew Applepie 6:38 - Kalimba Jam - B...
Porch Pirate vs. Glitter Bomb Trap 2.0
Views 33M3 months ago
11 months of social justice engineering boiled down to 15 minutes! Thanks to Bose for their support! Save $50 on the Headphones 700 now through 12/21 (US only) ANSWER TO FAQ- The reason some peoples faces are not blurred out is because those people signed releases allowing me to show their face. Thanks to Macaulay Culkin! Check out his channel-
World's First Automatic Strike Bowling Ball
Views 17M4 months ago
You don't need to be good at bowling if you're good at engineering. Thanks to BOSE for their support and for the coolest pair of sunglasses ever: Go sub to James' channel here: Join #TeamTrees at My buddy Mark's machine shop. He is really great to work with and they can do really out of the box projects like this- www.Ba...
Using Drones to Plant 20,000,000 Trees
Views 10M5 months ago
Join #TeamTrees at Create your own personal website at ALSO, see how I make all my builds using Wix: Thanks to my friends at Discovery Channel for helping us find Arbor Day in the first place and then capturing all the footage for my video. They are absolute champions to work with I've got some really cool projects coming up soo...
World's Largest Elephant Toothpaste Experiment
Views 42M7 months ago
I'm not a chemist. A portion of this video was sponsored by LastPass.Click here to start using LastPass: Science Bob's Elephant toothpaste recipe- Here is Science Bob’s behind the scenes commentary: Music 0:00 - Marimba Idea - Blue Wednesday sou...
Testing if Sharks Can Smell a Drop of Blood
Views 48M8 months ago
Scientific proof Pixar sits on a throne of lies. Thanks to Bose for their support and for the dopest headphones I've ever worn: Also, thanks to Discovery for putting my life in danger. #SharkWeek begins July 28 only on Discovery FACEBOOK: sharkweek TWITTER: sharkweek INSTAGRAM: sharkweek Flash-Player:
Stealing Baseball Signs with a Phone (Machine Learning)
Views 10M9 months ago
I always sucked at baseball... until now... ok, I still probably suck. Go to and use code MARKROBER to get 75% off a 3 year plan and an extra month for free. Go subscribe to Jabril's channel!!! Simple app (it's actually just a webpage for now): Complex app using ML:
World's Largest Jello Pool- Can you swim in Jello?
Views 49M10 months ago
I've wanted to make this video waaay before I ever knew how to make videos. Go to and use code MARKROBER to get 75% off a 3 year plan and an extra month for free. Thanks to Devin Super Tramp for filming all the coolest parts of this video. Go subscribe to his channel and tell him I sent you! High Speed camera courtesy of
Rocket Powered Golf Club at 100,000 FPS
Views 11MYear ago
My golf game has improved. Go to to get started on your Wix website! ALSO, see how I make all my builds: DESTIN'S VIDEO- MUSIC- 0:03 Arrow - Andrew Applepie 0:51 Kalimba Jam - Blue Wednesday (this was made just for me so you won't find it :) 1:36 Fa...
Drinking Nasty Swamp Water (to save the world)
Views 18MYear ago
While I'm normally a physics guy, got to give the chemists out there props on this one. Also props to Bill and Melinda Gates for partnering with me on this video. Check out their 2019 annual letter here- Here is a link to learn more about P&G's initiative and to donate (again... not sponsored): Music 1:07 Faidherbe Square - Proleter 2:37 The Oce...
Package Thief vs. Glitter Bomb Trap
Views 79MYear ago
This might be my Magnum Opus. Please see my comments below with regards to reports the video was partially faked. Go to and use code MARKROBER to get 75% off a 3 year plan and an extra month for free. My buddy Sean posted a video with more details of the build: Note about 2 missing the reactions in the video (I posted this on a...
World's Largest Horn Shatters Glass
Views 22MYear ago
I might upgrade my car horn to this. Shoutout to Portal from Facebook for their support on this video. Learn more and get yours at: portal 2OG9U7j Watch the What's Inside video here: Here is a behind the scenes video from the day: High Speed camera courtesy of They rent high...
Playing Card Machine Gun- Card Throwing Trick Shots
Views 13MYear ago
Hide yo kids, hide yo celery. Get started with 6 meals free - 2 free meals in each of your first 3 HelloFresh boxes. Go to and enter markrober60 for a total of $60 off. Rick's video (learn to throw cards): MUSIC- 0:46- Arrow- Andrew Applepie - 2:45- Faidherbe Square- ProleteR- 3:52...
Views 24MYear ago
Don't mess with my people. Go to to get started on your Wix website! ALSO, see how I make all my builds: Captain Disillusions's video: Peter's build video: Camera man credit: Luke Hale MUSIC- 0:02 New Shoes- Blue Wednesday
BEAT ANY ESCAPE ROOM- 10 proven tricks and tips
Views 13MYear ago
10 tips to dominate any Escape room- Prepare your brain for the Escape room using First 200 people get 20% off!! EXTRA INF0- -Check out Dr. Nicholson's website here for more juicy stuff- -8 roles for players- -This is the escape room I filmed in. They were awesome to w...
Rock Skip Robot- The Science of Perfect Rock Skipping
Views 11MYear ago
Shout out to Skippa the robot for her help on this one. Protect yourself from your Russian comrades with NordVPN. Go to and use code MARKROBER for 77% off. MUSIC- 0:11- Cereal Killa- Blue Wednesday - 0:35- Pokemon in NYC- Andrew Applepie- 1:14- Danijel Zambo- Moutain King- 2:54- Faidherbe Square...
World's Largest Lemon Battery- Lemon powered Supercar
Views 14MYear ago
I was challenged by VW to make electricity to support their electric Supercar at Pike's Peak. The CRUSHED the course record by 15 seconds in the race. I got a little help from William Osman and some kids and without hurting any feelings one was better than the other. Check out William's video here: The battery used to store and deliver the lemon, zi...
200 dropped wallets- the 20 MOST and LEAST HONEST cities
Views 15MYear ago
I lost my wallet and someone didn't return it. Revenge is a dish best served... with data. Get your FREE audiobook here: or text markrober to 500-500 CGPGrey's fascinating video about how thoughts are like viruses and why so much of what we read today makes us upset: MUSIC- 0:07- Cereal Killa- Blue Wednesday -
1st place Mousetrap Car Ideas- using SCIENCE
Views 10M2 years ago
Science your way to the blue ribbon. Go learn something from someone who cares at The first 1000 people get 2 months for $0.99- Sign up for an account on Skillshare. Skillshare is a community marketplace for users to teach and learn from project-based, online and local classes on a wide variety of subjects. Check out Al's website if you want stuff to build your own...
Is NASA a waste of money?
Views 5M2 years ago
5 reasons NASA is da best. Thanks to Bill and Melinda Gates for their support on this video. Check out the 2018 annual letter here: My five reasons: 1) Makes Earth a better place 2) Extinction prevention 3) Offshoot technology 4) Economy 5) Exploration and Imagination MUSIC- 0:04- Berlin- Andrew Applepie- 0:56- Ceral Killa- Blue Wednesday -
ARCADE SCAM SCIENCE (not clickbait)
Views 22M2 years ago
Don't feel bad. You don't suck, the game makers do. Go expand your mind and learn something new at The first 300 people get 2 months FREE! Check out Destin's (Smarter Every Day) hummingbird video here: MERCH- By popular demand I have shirts now! I picked the super soft, high quality shirts and make $0 on al...
Liquid Sand Hot Tub- Fluidized air bed
Views 55M2 years ago
I don't like sand. It's coarse, and rough, and irritating, and it gets everywhere. Here is the build info: Here is a video by the King of Random with more details on making one for yourself: MUSIC- 0:17- I've got no info on this song. Sorry. 1:40- Cereal Killa- Blue Wednesday-
Views 51M2 years ago
Prepare to drop some knowledge next time you visit the carnival. Go expand your mind and learn something new at The first 300 people (they opened this up to first 2,000) get 2 months FREE! MUSIC- 0:21- Ceral Killa- Blue Wednesday - 0:53- Carnival Song written special by Andrew Applepie- 3:40- Berlin- An...
Views 18M2 years ago
Knowledge is power! Even if that knowledge causes you to rethink some of those lovely summer memories. FREE Audio Book- A review of all the books I've listened to recently: Lindsay's Papers: Professor Blatchley's Papers:
World's LARGEST SUPER SOAKER!! (not clickbait)
Views 28M2 years ago
Introducing the Guinness World Record Largest Super Soaker evaa at 7 ft long!! This could definitely shoot Ralphie's eye out. Learn more about your actual DNA from 23andMe here: Bob's Video- Thanks to Nathan for the High Speed camera. If you need a High Speed camera to rent for super cheap check him out. Insanely low prices for...
NICEST Car Horn Ever- DIY
Views 25M2 years ago
This horn is SO courteous my car was granted Canadian citizenship yesterday. FREE Audio Book- A review of all the books I've listened to recently: Check out Bob's video: My buddy Howard does this for a living: Links to the stuff I used (not sponsored): Sound boa...
Hot Wheels STUNT RACE- Slow Mo (2500 FPS)
Views 3.2M2 years ago
This is the Hot Wheels race of my childhood dreams. It's a little different of a vid for me but I wanted to learn how to film like the pros. Learn more about your actual DNA from 23andMe here: Check Robert's behind the scenes vid: GIANT mousetrap cameo courtesy of The Backyard Scientist. See the vid here:
Automatic Bullseye, MOVING DARTBOARD
Views 14M3 years ago
I have been working on this board for over 3 years. Super pumped to finally share it with all y'all. Here is a link to some of the software we wrote: MUSIC- 0:08- I'm so- Andrew Applepie- 0:37- Cereal Killa- Blue Wednesday - 3:49- Berlin- Andrew Applepie- 5:41- Special ...
How to save 51 billion lives for 68 cents with simple Engineering
Views 9M3 years ago
Using the power of engineering and brilliant inventions to save lives!!! Great times collab-ing with Bill and Melinda Gates! You should check out the Gates Annual Letter here: Pre-order a paper microscope here- Read the published paper on the paper centrifuge, its cool- MUSIC- 0:15- The Ocean- Andrew Applepie- ...
1st place science fair ideas- 10 ideas and tricks to WIN!
Views 4.5M3 years ago
10 ideas and some power tips to make you the king of your science fair! FREE Audio Book- A review of all the books I've listened to recently: Studio C collab video! Credit to my sister Lisa for being my professional consultant on a lot of these ideas and tips. My 10 ideas: 1. Number of card shuffles 1.5...
Myth-testing Christmas movies with SCIENCE EXPERIMENTS (ft. Vsauce3)
Views 8M3 years ago
Jake from Vsauce3 and I test scenes from Home Alone, Elf and A Christmas Story using only the Scientific Method... and some cow eyes. FREE Audio Book- -American Sniper by Chris Kyle JAKE'S VIDEO- THREADBANGER VIDEO (we also shot scene with Rob in the house... it's cool)- I made an...
Views 6M3 years ago
Using nothing but an empty stadium, the scientific method and a lab coat, I investigate the most effective way to cheer for your team. FREE Audio Book- Unbroken by Laura Hillenbrand Special thanks to: USC for letting me use the Coliseum Siemens for lending me the nice audio equipment Drone shots- Chad Schollmeyer
PAINT Super Soaker Battle (w/ Colin Furze)- Splatoon IRL
Views 6M3 years ago
I made 7 Super Soakers that shoot paint like Splatoon in real life. Then challenged my niece and Nephews to battle in a pure white room. It didn't go well. Get a FREE Kiwicrate box for someone for Christmas- CHANNEL LINKS- Colin's Channel- David and Ryan's channel- Darren's channel (slow mo shots)- flash-...
Views 3M3 years ago
I wanted to recreate the first time science blew my mind by creating my own massive glow wall in my house. FREE Audio Book- How I Killed Pluto and Why it Had it Coming by Mike Brown Check out Jason's channel for more AWESOME art- MUSIC- 0:02- Pokemon in NYC- Andrew Applepie- 3:32- Berlin- Andrew Applep...
BARE HAND Bottle Busting- Science Investigation
Views 11M3 years ago
Kevin and I get to the bottom of a science mystery using only our wits and rugged good looks. FREE Audio Book- Ready Player One Check out Kevin's channel- Thanks to Nathan for the High Speed camera. If you need a High Speed camera to rent for super cheap check him out. Insanely low prices for great gear- ...
25 MILLION Orbeez in a pool- Do you sink or float?
Views 38M3 years ago
Kevin (aka The Backyard Scientist) and I filled a pool with 25 million waterballs (aka Orbeez) so I could settle an argument about how far you sink if you jump in. Go watch Kevin's video- FREE Squarespace trial- Thanks to Nathan for the High Speed camera. If you need a High Speed camera to rent for super cheap check him o...
Views 31M3 years ago
I made the world's largest Nerf gun to defend my honor. CHECK OUT AND SUB RYAN AND DAVID'S CHANNEL: FREE Audio Book- Rob's book is called "Mars Rover Curiosity: An Inside Account from Curiosity's Chief Engineer" Mike helped with the great drone shots- Dani does prop work and made th...
1500 Water Balloons + Trampoline- SLO MO!!
Views 4.4M3 years ago
Using 1500 water balloons and a massive trampoline to accomplish my major life goal to be the favorite uncle. FREE Squarespace trial- Thanks to Nathan for the High Speed camera. If you need a High Speed camera to rent for super cheap check him out. Insanely low prices for great gear- MUSIC- 0:03- Frisbee- Andrew Applepie-
How to get 1 MILLION subscribers
Views 918K3 years ago
Seriously. THANKS YOU guys. Here's a highlight reel of my favorite bits of the past 4.5 years that we've collectively shared. MUSIC- For Mum by Andrew Applepie- PLEASE CONSIDER SUBSCRIBING: ­ I make videos like this once a month all year long while supplies last: CHECK OUT MY CHANNEL: FACEBOOK: Mar...
How to Survive a Grenade Blast
Views 59M4 years ago
Just some helpful science if you ever find yourself face to face with a grenade :) FREE Audio Book- CHECK OUT THE BACKYARD SCIENTIST: Thanks to Nathan for the High Speed camera. If you need a High Speed camera to rent for super cheap check him out. Insanely low prices for great gear- Really good paper ...
DRONE Solar System Model- How far is Planet 9?
Views 9M4 years ago
I heart space but sometimes it can be hard to comprehend. I try to fix that in this video with junk you can find lying around your house. Also, if you’ve wondered how there could be a ninth planet that we’ve never noticed till now I try to clear that up too by demonstrating just how impossibly far away it is. Try a FREE trial for a Squarespace website and help support future videos of mine at t...
Snowball Machine Gun- How to make
Views 12M4 years ago
Here's how to make a Snowball Machine Gun that can fire 13 snowballs in .5 seconds. It's a must have in any self-respecting Uncle's arsenal. FREE Audio Book- Build Instructions here- machine gun- Build Instructions.pdf?dl=0 MUSIC- 0:05- Run (part 2)- Andrew Applepie- andrewapplepie 0:1...
Defog your windows TWICE as fast using SCIENCE- 4 easy steps
Views 10M4 years ago
Here are 4 steps to defog your windshield twice as fast in the morning and the science behind why it works. Thanks for watching from the bottom of my nerdy heart. FREE Audio Book- MUSIC- 0:07- Berlin- Andrew Applepie- 0:45- Riding through the hall of the mountain king- Danijel Zambo- 1:24- Dance-...
BEST Guess Who Strategy- 96% WIN record using MATH
Views 15M4 years ago
Here is a strategy for winning 96% of your competitive Guess Who games. Now all you need is a time machine to return to 1991 and CRUSH Jeff Lee in the 5th grade Guess Who Championships. FREE trial for MUSIC- 0:21- Mad Professor- Danijel Zambo- 1:06- Dance- Danijel Zambo- 2:10- Spark- Maxwell Young- soundc...
Views 104M4 years ago
Here's a cool watermelon trick to make you the #1 food bringer at your Labor Day picnic this weekend. FREE Audio Book- MUSIC- All of the awesome music in this video was created by the one and only Danijel Zambo- Check him out on SoundCloud- PLEASE CONSIDER SUBSCRIBING: ­ I make videos like this once a month all year ...
1st place Egg Drop project ideas- using SCIENCE
Views 23M4 years ago
5 designs guaranteed to win 1st place or your money back. I hope you enjoy the video and learn something new like I did when I made it. Feel free to share with any one who likes to learn science or is in a High School Physics class! MUSIC- All of the awesome music in this video was created by the one and only Danijel Zambo- Check him out on SoundCloud- PLEASE CONSID...
HEAT MAP Microwave- a NEW invention
Views 2.1M5 years ago
Here's an idea I've had for over a year on how to make a waaaaay better microwave using Infrared and Heat Maps! I hope you guys like it. If you want one, sign the petition here: FREE Audio Book- PLEASE CONSIDER SUBSCRIBING: ­­ I make videos like this once a month all year long while supplies last: CHECK OUT MY CHANNEL: t...
NASA Pumpkin Carving Contest w/ LASERS!!!
Views 3.1M5 years ago
FREE Audio Book- The fine folks at NASA's Jet Propulsion Laboratory demonstrate why they are the best ever by showcasing their mad pumpkin carving skills. PLEASE CONSIDER SUBSCRIBING: ­­ I make videos like this once a month all year long while supplies last: CHECK OUT MY CHANNEL: FACEBOOK ME: MarkR...
24 EASY Hi-Tech Halloween Costumes I invented
Views 9M5 years ago
Here are 24 easy costume ideas that will make you the most awesome person at your Halloween Party this year! Get any of the costumes shown at Morph Costumes: Apple download: Android download: Check out my buddy Trey's streaking in public prank vid: PLEASE CONSIDER SU...
iPhone ATM PIN code hack- HOW TO PREVENT
Views 32M5 years ago
This is a new way for bad guys to steal your ATM pin code using an iPhone without you noticing at all BUT there is a really simple way to prevent it from happening. MUSIC All music created by j.ournal - you should go sub his video poem channel: PLEASE CONSIDER SUBSCRIBING: I make videos like this once a month all year l...
Measure height with a watch! Cliff jump science
Views 2M5 years ago
This is a simple trick using high school physics where you can measure the height of really tall objects like a cliff, using just a stopwatch. Special thanks to Active Life Store for the GoPro shots. You can get one from them here: PLEASE CONSIDER SUBSCRIBING: Here is a link to the FREE app (free as in FREE, as in I don't even have any ads in it or m...
40 MPH Pinewood Derby Car- HOW TO
Views 3.5M6 years ago
How to build a 40 MPH (slightly illegal) Pinewood Derby car. If you want to know how to make a car that is actually legal that still dominates the competition, here y'are:
EASY Pinewood Derby Car WINS using Science!!!
Views 18M6 years ago
7 simple steps that ACTUALLY MATTER to building a winning pinewood derby car. I built a car in 45 minutes using these steps and crushed all the competition by more than 2 car lengths (proof is in the video :) Special thanks to Steve at for providing his expertise and materials for the video. CONSIDER SUBSCRIBING: HERE'S HOW I MADE THE ROCKET CAR: flash-...
Freezing time w/ ONLY ONE camera, 360 degrees, 7200 fps
Views 959K6 years ago
How to use ONE camera to capture the 360 effect like in the Matrix. I've been working on this project for over 6 months. Special thanks to Ken for doing most of the heavy lifting on the rig we designed. SUBSCRIBE: Link to Aimed Research website (if you ever need High Speed camera start here. Seriously): Here is their Flash-Player Channe...
NASA Pumpkin Carving Contest
Views 2.5M6 years ago
Annual section 352 Pumpkin Carving contest at NASA/JPL. So fun and so ridiculous. Each team gets an hour to create their masterpiece. All of the materials including the pumpkins were purchased with personal funds and not tax payer dollars :) I make videos like this once a month all year long while supplies last: SUBSCRIBE: CHECK OUT MY CHANNEL:
Gut Ripping iPhone Halloween Costume + 17 more hi-tech costumes
Views 7M6 years ago
Digital Dudz from Morph Costumes are your key to Halloween party domination... just sayin- USA website - UK website- CAN website- AUS website- Check out your local Party City if you prefer not to buy on online! Get the FREE app! Apple download:
Watermelon smoothie hack in 2 minutes- No mess
Views 18M6 years ago
Here is a simple trick to make you the boss of the picnic. Create a refreshing watermelon smoothie with essentially no mess in 2 minutes. I make videos like this once a month all year long while supplies last: SUBSCRIBE: CHECK OUT MY CHANNEL: FOLLOW ON TWITTER: #!/MarkRober FACEBOOK ME: MarkRoberFlash-Player M...
Glowing Algae Water Fountain
Views 688K6 years ago
A simple idea for continuous, organic, relaxing light using bioluminescence. CHECK OUT CALEB'S AWESOME PROJECT: HERE IS WHERE I BOUGHT THE ALGAE FROM: I make videos like this once a month all year long while supplies last: SUBSCRIBE: CHECK OUT MY CHANNEL:
EPIC Matrix effect w/ a ceiling fan & 1 GoPro (ghetto bullet time)
Views 1.6M6 years ago
A simple trick to get awesome Matrix-like "Bullet Time" footage for waaaaay less money than most people spend on it with huge camera arrays. I shot all off this footage with a GoPro HD Hero 3 at 240 fps. NO TWIXTOR!!!... but I did you use After Effects smooth motion thing in parts which is pretty much the same thing... it just seems like writing NO TWIXTOR is like a badge of honor for slow mo v...
Unibrow Discrimination- Social Experiment
Views 3.8M7 years ago
A simple experiment designed to test how unibrowed people are treated in normal life. If you like my shirt, my buddy David designed it and you can get one for yo bad self here: Awesome Bert voice by Steven Page, check out his very popular Flash-Player channel: I make videos like this once a month all year long while supp...
8-bit Annoying Person Remover- NES Hack
Views 1.1M7 years ago
An old school solution for dealing with your annoying coworkers. Download all the files you need to make one of your own here: Go check out and sub Lincoln and Kirby's channel: I make videos like this once a month all year long while supplies last: SUBSCRIBE: CHECK ...
LED Edge Lit Table- HOW TO
Views 1.9M7 years ago
Some details on how to make a pretty cool table top for not that much money. Here is a link to the LED light strips. TONS of potential uses for these guys. They even sell one you can use underwater: light strips Here is a link to the mini sand-blaster:
Burning Fireplace Ugly Christmas Sweater (w/ an iPad)
Views 351K7 years ago
Digital Dudz- Holiday Edition is pretty much your key to Ugly Christmas Sweater party domination... just sayin. Search the app store for "Digital Dudz" or use this link: Android version not yet available. See how I made the fireplace mantle here: Special thanks to Joe Hunt of ToJo Media...
Scooby Doo Surveillance Cam (w/ 2 iPhones)
Views 2.8M7 years ago
A simple trick to give you all the convenience of a Scooby Doo bad guy, without having to do any construction on your walls. SUBSCRIBE: Link to down the pictures I used. Print 11x17 in color for best results: The FREE Digital Dudz app will give you the same moving eye picture frame effect without going through the trouble of u...
iWound Animated Halloween Costume
Views 375K7 years ago
Digital Dudz are pretty much your key to Halloween party domination... just sayin. Apple download: Android download: Get your shirt or iWound before they're all picked over: See reactions to the iWound from Magic of Rahat: See 7 cool Hal...
Beating iPhone Heart Halloween Costume + 20 more high-tech costumes
Views 6M7 years ago
NO MORE DUCT TAPE OR SCISSORS REQUIRED for 2013!!! Check out the new ones at Morph Costumes. Digital Dudz are pretty much your key to Halloween party domination... just sayin. Apple download: Android download: Get your shirt or iWound before they're all picked over: See reactions to the iWound ...
NASA's Curiosity landing- 1 of her creator's POV
Views 3.1M7 years ago
I was able to work on NASA JPL's Curiosity Mars Rover for 7 years. This video is an attempt to capture what it felt like to have 7 years of your life vindicated in the 7 minute landing. Honestly one of the coolest moments of my life so far. All the pictures of hardware you see in the video are things that I worked on designing or testing or building. I got to work on the Sky Crane for 3-4 years...
Turtles or Snakes- Which do cars hit more? ROADKILL EXPERIMENT
Views 5M7 years ago
I read a long time ago that people will swerve more to hit turtles over snakes... and as a firm believer in the scientific method, I decided to test this hypothesis. CONSIDER SUBSCRIBING: FACEBOOK ME: MarkRoberFlash-Player FOLLOW ON TWITTER: #!/MarkRober HERE'S WHERE I GOT THE TURTLE AND SNAKE FROM: Turtle:
250 sq ft GLOWING Super Mario night kite
Views 606K7 years ago
A cool method for displaying some artwork to potentially tens of thousands of people in one night for pretty cheap. Here is the HOW TO video for this idea: SUBSCRIBE: CHECK OUT MY CHANNEL: FOLLOW ON TWITTER: #!/MarkRober FACEBOOK ME: MarkRoberFlash-Player Special thanks to ...
HOW TO- 250 sq ft. Mario glowing night kite
Views 153K7 years ago
HERE ARE SOME USEFUL LINKS IF YOU WANT TO DO SOMETHING SIMILAR:. - LEDs (about 15 cents per- I tried a bunch of different ones and these are the best ones): - RED- 105MR2D - BLUE- 105XB7D - WHITE- 599PW04C - 3V batteries (17 cents per): - My materials selection report: ...
Shower Hair Mural- HOW TO.mp4
Views 463K8 years ago
How to make an awesome mural... in your shower... out of human hair. It's not as gross as it sounds... oh wait, yes, yes it is. See the original video here: Judy's photography website (she's really good and depending on her availability you can book her services): Subscribe so you don't miss the next one: flash-p...
Shower Hair Art- a mural
Views 710K8 years ago
A man can only take so much of his wife's hair stuck to the shower walls before he snaps. Subscribe so you don't miss the next one: Check out my Channel: Follow me on twitter: #!/MarkRober Facebook me: MarkRoberFlash-Player
5 EPIC pranks in 60 seconds
Views 1.2M8 years ago
5 EPIC pranks I have either personally carried out or witnessed myself all in under a minute: 1) Facebook stalker freak 2) Mint toothpaste Oreos 3) College dorm cricket awesomeness 4) The Black Angus... minus the g 5) Premature Flash-Player related videos I offer a money back guarantee for all dissatisfied customers: Check out my Channel: Follow me on tw...
Gorilla lured by iPhone- how-to demo
Views 1.3M8 years ago
A simple trick to get you some AWESOME zoo footage with only a camera phone. If you love or hate (or are ambivalent towards) gorillas you are gonna really like this. For those who've wisely pointed out those are actually orangutans and not gorillas, go to 1:03 then pause then read. See how to make the gorilla cam here: Check out my Channel: flash-pl...
Make a Gorilla cam- HOW TO
Views 274K8 years ago
A simple $8 rig that takes 10 minutes and will get you AWESOME footage at the zoo. Check out the original video here: Check out my Channel: Follow me on twitter: #!/MarkRober Facebook me: MarkRoberFlash-Player "My Word" by Qwiet. iTunes link:
Always win at heads/tails- BEST METHOD
Views 2M8 years ago
A simple trick for flipping a coin that can ensure you get tails (or heads for that matter) every time. I've been using this trick for 10 years and I've never had someone catch it. Check out my Channel: Follow me on twitter: #!/MarkRober Facebook Fan Page: MarkRoberFlash-Player Three background songs by Qwiet. iTunes link: itunes...
Whiteboard Office Darts (using BuckyBalls)
Views 874K8 years ago
A simple alternative to using real darts and putting a bunch of holes in your office wall.... with a surprise ending the whole family will be sure to enjoy. As seen on Gizmodo: Check out my Channel: Follow me on twitter: #!/MarkRober Facebook Fan Page:
iPad2 Halloween Costume- Gaping hole in torso
Views 9M8 years ago
A description of a relatively simple Halloween costume using 2 iPad2s to make it look like you have a huge hole in your torso. You'll also need a MiFi hotspot (if you don't have a WiFi network available where you want to use the costume). Basically you start a FaceTime chat between the iPads and then tape one to your front and one to your back. Add a little red paint and you're good to go. It's...


  • pratik zavade
    pratik zavade 3 hours ago

    I think weight will be different according to the planets or celestial bodies gravitational force.

  • Fake ID
    Fake ID 3 hours ago

    By using p=mv where, we know p-momentum and v-velocity by attaching a belt and pulling them with certain velocity

  • Ernesto Diaz
    Ernesto Diaz 3 hours ago

    Mark river I have a question what's your phobia

  • Mister Theguy
    Mister Theguy 3 hours ago

    Is that about the higher surface density actually real?

  • Daniel Ionanov
    Daniel Ionanov 3 hours ago

    Maybe astraunauts use the, well, I saw special gym teachers weight by passing some type of electricity through the body and counting how long it takes for it to pass from one hand to another if I'm not wrong

  • Cooper Johnson
    Cooper Johnson 3 hours ago

    F for the plant

  • Joshua Gibbs
    Joshua Gibbs 3 hours ago

    He used the treat collecting sound in Roblox 🤣

  • Chronix_Overide
    Chronix_Overide 4 hours ago

    Rip grant 2019

  • N.G.K.S 237
    N.G.K.S 237 4 hours ago

    U are such a good teacher

  • Rachel Lugo
    Rachel Lugo 4 hours ago

    You are amazing! I have added one of your lessons a week as an additional optional science lesson for my class and the majority of them are doing it and with such enthusiasum. You are going to be a Fantastic teacher! Keep it up :)

  • wiseandfunfox
    wiseandfunfox 4 hours ago

    Bill gates owns the patent to corona virus, his dad was the leader of planned parenthood of who's creator margret sanger is a known eugenic, bill has been promoting de population for years. Event 201, he is straight up evil and everything thinks he's here to save the world...... He CREATED this mess. He has connections to a lot of shady/evil people. Now developing ID2020 the mark of the beast, if that doesn't connect the dots nothing will. This is all true, look it up.

  • NM AT
    NM AT 4 hours ago

    I lived in a complex which each apartment was a condo, I would say about 3/4th of it was renters in those condo apartments. I left my wallet with some money and my military ID, on top of the mailbox area. Nobody returned it not even to the managers office. They knew me and would have returned my wallet to me. So sad, I had reported it to the police SDPD and they didn't take the report, said it was on a complex to go and ask around who has seen your wallet. So I had nobody returned my wallet. :_(

  • Bronze OP
    Bronze OP 4 hours ago

    its probably wrong but, maybe they measure th blood pressure? or maybe they are exerting different forces on them selfs to measure the moment of inertia.Or maybe by exerting this forces they measure their acceleration and they find their Mass (ΣF=ma) and then they multiply it be 10 or 9.87 if the want to be exact or something

  • Amy G
    Amy G 4 hours ago


  • The Failure Gamer TFG

    You look like ninja in the thumbnail

  • Evelyn merf
    Evelyn merf 4 hours ago

    So many people do the 5 second rule one

  • Jan 7715
    Jan 7715 4 hours ago

    Guy who build the case:*exist* Mark robber:Amma bout to end this Mas whole career

  • Riko Lime
    Riko Lime 4 hours ago

    I always thought it was ironic we call colors by what they reflect (and therefore, arent). We did a funny with a bio professor once, asked her why the sky was blue. "Because the ocean is blue". Whys the ocean blue? "because the sky is blue". She said basically they reflected blue back and forth so much that it maginified to a point where we could percieve it, and thats why the sky has a color but no actual physical being (like a wall, the floor, etc), and why the ocean is blue, but water by itself is clear.

  • M to N YT
    M to N YT 4 hours ago

    3:28 *This is what the last thing you see in Minecraft is, except it’s not in the end dimension and is green.*

  • • Myan’s Gacha •

    Why did my teacher send this bro

  • Nick Lai
    Nick Lai 4 hours ago

    i wonder how he finds that much pee

  • Arinnia Aio
    Arinnia Aio 4 hours ago

    Wait are we gonna need a corona virus vaccine?

  • Meghamix Gaming
    Meghamix Gaming 4 hours ago

    I really want to plant tree to in mour play.. Good work

  • CobraKai Lilbrudah
    CobraKai Lilbrudah 4 hours ago

    can you make pool of tears after the quarantine who agrees with me

  • ImDotNyslexic
    ImDotNyslexic 4 hours ago

    Wow, that is so satisfying and awesome u master of recompense u... u karmic equalizer u...

  • Mike 99
    Mike 99 5 hours ago

    That corona beer bottle though

  • Don Gun
    Don Gun 5 hours ago

    Mom:no school for 3 weeks Kids:YESSSSSSS WOHOOOO After 3 days Kids:WHEN IS QUARANTINE OVER

  • Divine Thread
    Divine Thread 5 hours ago

    I accidentally waterproofed my hand using soap a couple of times while taking a bath. I was shocked if it was abnormal or what xd.

  • Paolo Torres
    Paolo Torres 5 hours ago

    In a tournament, that would get you disqualified.

  • Nicole Chacon
    Nicole Chacon 5 hours ago

    0:04 battle of the bulge in ww2

  • Freeman Degraffenreid

    Is soap slippery because of the cohesion or does soap even have a cohesion?

  • lulu brine 1
    lulu brine 1 5 hours ago

    Why does speaking a different language change the pitch of your voice?

  • Vehaan Subramanian
    Vehaan Subramanian 5 hours ago

    yes she randomly shook the hands of three kids.

  • Tristan N
    Tristan N 5 hours ago

    6:26 thicccc

  • Jim Hubbard
    Jim Hubbard 5 hours ago

    If you are impatient, skip to 18:24

  • Nathan Vang
    Nathan Vang 5 hours ago

    Question, if you pop your fingers or any part of your body, where does the gas go or escape?

  • Ryan Warchol
    Ryan Warchol 5 hours ago

    Come to my area. Lol

  • Abbas Raza Nasir
    Abbas Raza Nasir 5 hours ago

    I paused wondering what if he jumped out of a pee pool well lets see lol,he did jump out of pee pool XD

  • Barry Lochridge
    Barry Lochridge 5 hours ago

    None of these videos are showing the dye spread AFTER washing. Is it less?

  • chris akin
    chris akin 5 hours ago

    Make someone's day better. Stop hoarding the hand sanitizer so us delivery drivers can buy some and not only prevent getting sick, but prevent spreading the illness.

  • Jeremy Hatch
    Jeremy Hatch 5 hours ago

    Mark:I am doing what i can Everyone: this is better than regular science class

  • John Man
    John Man 5 hours ago

    Ever since watching this video, my kids now tell me they ‘gained weight’ several times a day.

  • Panda Løver13
    Panda Løver13 5 hours ago


  • Comment Police
    Comment Police 5 hours ago

    What the microwave sounds like at 2pm: 4:44 What the microwave sounds like at 2am: 4:53

  • Jeremy Hatch
    Jeremy Hatch 5 hours ago

    this is normal i pay attention when he gets to the chase but on the norm i read the comments

  • Double Dare Fan
    Double Dare Fan 6 hours ago

    When I read the title, I immediately thought of the Veritasium video.

  • Iron gamer :]
    Iron gamer :] 6 hours ago

    But if animals eat plants and they use plants to make the burger?

  • Helgali
    Helgali 6 hours ago

    Dexter's lab feelings.

  • Minsoo 52
    Minsoo 52 6 hours ago

    We hold dear, *gets shot in the waist*

  • Shawn Shade
    Shawn Shade 6 hours ago

    1 word for this scammer: *Busted*

  • common science
    common science 6 hours ago

    If anyone need slide videos just visit common science STAY HOME STAY SAFE

  • The Mandalorian 101
    The Mandalorian 101 6 hours ago

    I think that swimming with sharks seems scary but also seems fun

  • Charitra Gupta
    Charitra Gupta 6 hours ago

    Plz tell me how Newton's cradle work

  • Jamie Hosmer
    Jamie Hosmer 6 hours ago

    If I remember correctly, weight = mass * gravity. But in space, you don’t have gravity. However, people like astronauts/fighter pilots have to endure training for certain amounts of G’s (magnitudes of the Earth’s gravity), which can be created by accelerating the ship/plane you are in. So, if you have no G’s in outer space, you could potentially accelerate to 1 G, the same amount as Earth’s gravity, and have our astronaut hang onto something like a suspended vegetable weight (the plate on a spring). When they are thrown to the side and a 1 G acceleration is maintained, the forces on the scale should give you the rough reading of what the person’s weight is, because that would be their mass applied to gravity, or in this case, the 1 G supplied. Just make sure to store the vegetables first before the hard burn.

  • Isaac Wieser Music
    Isaac Wieser Music 6 hours ago

    Anakin Skywalker’s worst nightmare. .. also what if this is how secret desert lizard people live in cavities under ground!

  • Dustin Nguyen
    Dustin Nguyen 6 hours ago

    my friend did number 4 but did not do well.

  • Samo Lassila
    Samo Lassila 6 hours ago

    To your shoulders

  • Dali Brabec
    Dali Brabec 6 hours ago

    the corona viris is stinky

  • MattyBoy P
    MattyBoy P 6 hours ago

    You need to teach at my school! I don’t really enjoy science but when you teach it, it is fun and interesting! I’m sure others will too! You should teach at my school! I’m serious!! They will hire you! Good money too!

  • Anixplained
    Anixplained 6 hours ago

    How to measure weight in 0 g. Spin the astronaut to a know accelerating and measure the force they exert, then use f=ma to figure out their mass

  • Duc Anh Tran
    Duc Anh Tran 6 hours ago

    mark you know how the water ballon so when it's slow motion it look like anti gravity

  • The Melemon-head
    The Melemon-head 6 hours ago

    4:46 69 HAHA

  • 6 strings For life
    6 strings For life 6 hours ago

    The 8.1 k dislikes are all arcade owners

  • iluvpikachu
    iluvpikachu 6 hours ago

    “Each attribute applies to only 5 people” “There are only 5 women” *Yeah, it’s big brain time.*

  • Dee Climer
    Dee Climer 6 hours ago

    Will you explain why at a certain speed, your vehicle tires look as though they're rotating backwards.

  • Nith Sreyleak
    Nith Sreyleak 6 hours ago

    If this ever is seen by you, please allow me to contribute subtitle in Khmer on Mark’s videos. Though I am not an influencer, it is my wishful thinking to spread the video further than just English-speaking audiences.

  • g tran
    g tran 6 hours ago


  • Caty Freeman Jr
    Caty Freeman Jr 6 hours ago

    I don’t know

  • Johnathan Tronathan
    Johnathan Tronathan 6 hours ago

    Mark made them little kid’s salty

  • doggo the mad borker

    if there is a reason I all of the sudden i move to California, u know why.

  • hanny kabbani
    hanny kabbani 6 hours ago

    Rip robers mom

  • Angie_ Vargas101
    Angie_ Vargas101 6 hours ago

    I’m guessing he put the wallets in the rich part of Chicago, because once when my mom got my cousin someone stole the whole a car

  • FNAFLover456
    FNAFLover456 6 hours ago

    [ c o o l v i b r a t i o n s ] + overload of Shingo points + unicorn dust + soap, oxidised water, food colouring & magic = pool full of toothpaste

  • Dali Brabec
    Dali Brabec 6 hours ago

    its because of the sun

  • Not Adrianoob
    Not Adrianoob 6 hours ago

    My ocd is killing me

  • Nicholas O'Neil
    Nicholas O'Neil 6 hours ago

    why is the sky never violet?

    • Nicholas O'Neil
      Nicholas O'Neil 6 hours ago

      are you saying the sky is actually white? and resinates blue?

  • Bastien DROUILLET
    Bastien DROUILLET 6 hours ago

    2019: go out and plant some trees! 2020: ok nevermind

  • Will Mendez
    Will Mendez 7 hours ago

    Why so many dislikes? So weird.

  • Evan Wiltshire
    Evan Wiltshire 7 hours ago

    hey who else is watching this at the time of COVID-19 when NZ is in lockdown.

  • Stvn* Universe
    Stvn* Universe 7 hours ago

    Awesome video but I feel that the pins were not real pins cause the inside of the ball being mechanical would deflect the pins and not get any strikes even with a light ball you still need some weight in the core to move thie pins. I wonder if I'm correct.

  • The Radioactive Gamerkid


  • Saymoura Ricketts
    Saymoura Ricketts 7 hours ago

    That looks so fun 😂😂

  • pablo bazan
    pablo bazan 7 hours ago

    Keep it going I love these classes.

  • Anthony Vasquezsanchez

    I think he will sink to his knees

  • Its me Chey
    Its me Chey 7 hours ago

    I one the rope clime all you have to do is get on it agust your senter of mass then pull your self up with your upper body strength

  • Erick Nunez
    Erick Nunez 7 hours ago

    Mark: This time I had the balls- the intestinal fortitude to like look over the edge 9:15

  • Princess Cutie9
    Princess Cutie9 7 hours ago

    Once I got 72 water drops on a quarter

  • Evan Wiltshire
    Evan Wiltshire 7 hours ago

    normal human: listen to that sound. smart people: sizzle


    🔥 hard to watch 0:30 💕💞 👇👇👇👇🥊

  • Gus Batista
    Gus Batista 7 hours ago

    F for the plant

  • midly infuriating
    midly infuriating 7 hours ago

    0:07 when I got 100 on my test paper

  • friendly CLAN_YT
    friendly CLAN_YT 7 hours ago

    Do not try this at home

  • Todd Williams
    Todd Williams 7 hours ago

    I am aware this isn't how it is done, but I like to think it might be a creative way to get an answer. Since the astronauts are in very regulated environments one could do a simple mass balance. Weigh astronauts before leaving earth, as each meal is recorded in space the mass into the body is known, as urine is reycled one could measure liquid via volume out and then caluclate mass via urine density, same with sweat taken from the ambient air in the cabins filtration system (calculated by each astronauts average sweat output as taken on earth and based on body size). The only item left is the human feces, instead of sending it into the atmosphere to be burned up, one could burn it on the space station and then via energy output derive the associated mass content. And therefore if you know starting value weight, what goes in and out, you can regualte the weight of the astronaut....not an easy solution but an interesting one :)

  • Frosty Fries
    Frosty Fries 7 hours ago

    That nurse has an awesome backpack

  • Freddie Newing
    Freddie Newing 7 hours ago

    8:19 - Who else thought the numbers 85121215 = HEABABAE

  • Hun Lim
    Hun Lim 7 hours ago

    my heart goes out to that poor, vaporized unicorn's family

  • Vedansh Tiwari
    Vedansh Tiwari 7 hours ago

    How astronauts weigh themselves? First I though I could use the equation density equal mass over volume. The volume of an Astronaut/ human being should be consistent. So it could be measure before space. But then you can find volume because liquids don’t stay still in space so that theory was put the window. So the next best option would be to measure their inertia. But, I don’t know how to do that because I haven’t taken AP Physics C in high school yet.

  • Eleanor Yu
    Eleanor Yu 7 hours ago

    it can be a new product in tech Co.

  • 4lex 16
    4lex 16 7 hours ago

    Astronauts use the centrifugal (idk how to spell it in English)force to recreate the force of gravity we get on earth at put a weigh thingy under their feet. (I had a documentary , that my teacher found , talking about things similar to this in my science class)

  • Dusty Butterflies
    Dusty Butterflies 7 hours ago

    *me* notices the office in the background