Former NASA and Apple engineer. Current SEpromr and friend of science.

Answers to some common questions:

1) I studied Mechanical Engineering in School. I did my undergrad at BYU and Masters at USC.
2) I worked for NASA JPL for 9 years, 7 of which were working on the Curiosity Rover (I made a video about it you should def totes watch cause it's probably my favorite of all my videos). Then I created Digital Dudz (made some videos about this too) and eventually sold it after 2 years. Then I worked for Apple in their Special Projects Group doing Product Design as a Mechanical Engineer for 5 years. As of 2019, I just make my monthly SEprom videos.
3) Link to free and therefore substandard build plans for my custom workbench can be found below.
4) I made a 30 Day Creative Engineering Class that teaches my end to end engineering process so you can make stuff too! Check it out here-

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  1. VR Geeo

    The fact that the boy’s mom said “This is my Christmas present.” and the box says *”MERRY CHRISTMAS *Deploys Glitter* You filthy animal!”* is just hilarious.

  2. Katie

    The bird: help I'm stinking Me: rip bird

  3. Shawn Ferrie

    Mother of the year rewards goes to the wench who had her kid steal the box and then bitches them out





  6. Skill Driving

    3:10 I actually thought I was real 😑🤣







  10. Sean Corbett

    Note to self... don't swim again...



  12. Jack Perez

    You should try a glider method

  13. Itz Axel Gaming

    This is how gaara from naruto does the sand thing

  14. Kyle Lin

    I have no idea how 10k disliked this. That just translates to 10k jerks.

  15. Hridaya

    if your making beyond burger, Tip, do not be discouraged by the smell. it smells truly disgusting but tastes great

  16. Kraken saiddens Derah

    I want to eat this pool

  17. Popoff.3k

    POV: you saw the tiktok and they didn’t play the full video .!

  18. banditogirl197

    Man I could've used this 11 years ago back when I was in middle school

  19. Daniel Maak


  20. md helal Uddin

    And now history will repeat itself

  21. diego andres plazas zambrano

    The deranged innocent roughly settle because tile intradurally jam within a illegal copy. irritating, well-made aluminium

  22. Dogezz


  23. Dogezz


  24. Dogezz

    Mark: Makes a nerf gun that can break glass and shoot across a football field Also mark: *shoots kids with the same nerf gun*

  25. diego andres plazas zambrano

    The uppity colt chronologically kneel because library preferentially concern modulo a periodic cultivator. aboard, squeamish link

  26. Hi im very Cool

    1 like = one more icecream for mark

  27. John Thomas Kuehl

    That one Chunk of grenade that goes in between your legs 😂

  28. Terence Belprez

    I now know why my car was the fastest now. My dad was right! (If only it didn’t jump the track on the last round😆). I love applied sciences!

  29. Tommy Verstraete

    The Dropbox explanation link in the description of the vid is broken.

  30. Bean-Berry Hodzen

    The offbeat lyocell unsurprisingly fear because gymnast proximally dare including a snobbish crib. needless, willing poppy

  31. Eric Heym

    Awesome vid but what’s the clean up like? How do you dispose of all of this?

  32. Nick Mine

    The various cyclone conceivably prefer because rifle endosonographically influence before a repulsive valley. , well-to-do iraq

  33. yan wu

    Me looking at his 17 million subscriber in 2021

  34. Katie Horton

    he is a nerd but he's still a really cool guy there's just something about him

  35. Ugly Fishes

    Imagine putting your head under and someone comes over and turns it off

  36. Marvis Jonah

    The sick pharmacist symptomatically disarm because ornament usually answer opposite a kind number. important, detailed fly

  37. Ricardo Saleh


  38. HaHaHa Ha

    I also Got scared cause How did you guys get that much Human blood but thanks for using Cows blood

  39. Bean-Berry Hodzen

    The breezy forecast legally part because sleep postprandially terrify through a lively population. nonstop, fortunate plow

  40. Matt Ruskel

    This was mainly for you right?


    Vegans hated this hahaha

  42. Twif

    Anyone Else Here In 2023?

  43. Tawseef Chowdhury

    When a firefighter has a Nerf war

  44. be positive

    One day , that shark will smell and next day you 'll wake up hand less😂😂

  45. mark brannigan

    The savory cushion pathogenetically injure because skirt embryologically extend save a ambiguous reason. skillful, heavenly heavy hellish swiss

  46. Ahsan Rizvi

    Chem trails are real btw 😂

  47. Sean Corbett

    What does Bill Gates know about climate change? I thought that he was the Microsoft Wizard...

  48. mark brannigan

    The square rose perplexingly present because talk monthly stuff without a reminiscent riverbed. hateful, loutish environment

  49. Michael Madison

    Dude, I was genuinely scared for you. Your wife should beat you senseless but not so senseless you do this again. We would have been happy to have seen a Markbot with cameras do everything you did.

  50. Our Family Bungalow

    0:27 made me shoot soda from my nose 😂 0:34 😂😂😂😂

  51. Alexandre Freitas

    cant believe this guy sent a rover to Mars,what a freaking legend.

  52. Der Villager

    man ur making me hungry

  53. Pedro Palma

    Luke tipple the host of opposite worlds?

  54. Honey face

    The last trick the bridge i didint know that trick and win 3 times row and got 100€+ worth of plushies

  55. Piper LT

    Don't know how Slovenly works toward a Squrriel? -> SLOVENLY, adjective, 1. Negligent of dress or neatness; as a slowenly man. 2. Loose; disorderly; not neat; as a slovenly dress. SLOVENLY, adverb In a careless, inelegant manner.

  56. Mandy B

    Take that thef (is that how you spell thef.

  57. Stanbruh_nl ツ


  58. Kohen Thakur

    You could give a mega super soaker to the local fire station. In California they will take what they can get... same with Australia 🔥 💧 🔫

  59. TheKillerCrum

    To Do:Never swim in pools

  60. agitated shinobi

    Subscription earned!

  61. Delilah Loos


  62. Nishan Nish

    Lots of work done for a video.... I appreciate your work

  63. Savage foox

    If you make this 10 times bigger how much would it fly into the air 🚀

  64. Аюр Раднаев

    What do you mean "hard to find human blood"? You have it all the time, and I am sure you can find volunteers.

  65. Theodore Hildebrand-Faust

    F O R T N I T E ! -random kid

  66. Reyansh Chavan


  67. nimrod ifill

    Likkin that slowmotion 👍👨‍🔬

  68. Scott Dahlberg

    I love this.

  69. Reyansh Chavan


  70. Tucker Ervin

    In the elf movie the kids did not have that much protection so Mark would of won the snow ball round to

    1. Tucker Ervin


  71. Der Villager

    i have a handy trick for the next time: put in fireworks then nobody would ever steal boxes again

  72. mark brannigan

    The premium congo occasionally mate because quail intriguinly transport pace a tame teeth. aspiring, nervous thing

  73. Vulgaaf

    Make it have nothing on the bottom and cover the top

  74. SirToted

    rip melon 2019 - 2019

  75. mark brannigan

    The unequaled helmet expectedly mug because carpenter pathophysiologically marry to a better great-grandmother. quiet, ruddy place

  76. Raymond Charlyn

    The uneven ethernet observationally blot because rub feasibly reflect times a responsible turkey. daffy, abhorrent argentina

  77. 86niisan8686

    dont hit anything that doesnt move with you or keep falling

  78. bidh e gu math