World’s Smallest Nerf Gun Shoots an Ant

Published 2023-09-30
Creating the World’s smallest Nerf gun 5 times in a row. Reserve your CrunchLabs Build Box for the holidays here-

I started a company called CrunchLabs, where we build a toy together, and then I teach you all the juicy physics for how it works. So if you want to learn to think like an engineer and have a really fun time doing it, check out the current promotion where you get 2 FREE boxes at

Thanks to these folks for providing some of the music in the video:
A Shell in the Pit -
Ponder - @pondermusic
Laura Shigihara - @supershigi
Andrew Applepie -
Blue Wednesday -

Special thanks to my friends at BYU - Larry Howell, Brian Jensen, Spencer Magleby, Terri Bateman, Felipe Rivera, Jacob Sheffield, Grant Ogilvie, Bridget Kember, Bethany Parkinson, Aliya Bascom, James Wade, Hunter Pruett, Jared Hunter, Luke Gardner, Ivyann Running, Michael Linder, Brooklyn Peters, Jared Erickson, Austin Martel, Kyle Dahl, Julie Walker, Adam Sanders, Matt Michell and Barret Schoenrock.

Download files for compliant mechanisms that you can 3D print (including a compliant mechanism blaster):

To learn more about the BYU Compliant Mechanisms Research Group (CMR), see

Also, thanks to the very talented group of researchers from the Salk Institute, UC San Diego, and UC San Francisco: Lauren P. Takiguchi, Jocelyn G. Olvera, Amanda L. Wacker, Ryan J. Fantasia, Boyu Liu, and Pallav Kosuri, Wade Shipley of UC San Diego, and Konlin Shen, Roopal Rawani, Amy Cao, Mike Jeffs, and Victoria Johnson.

To read more about DNA Origami NanoNERF Blasters, please visit…

To learn more about Pallav Kosuri’s research and to support him in making DNA machines that improve human health, please visit To support his work, click on the ‘give’ button and note ‘Kosuri Lab’ in the comments.

NO PURCHASE NECESSARY. Promotion starts on 1/1/2023 & ends on 12/31/23, subject to monthly entry deadlines. Open to legal residents of the 50 U.S. & D.C., 18+. 1 prize per month: each month is its own separate promotion. For the first 2-3 months, winner may be notified via phone call instead of winning game piece. If a monthly prize is unclaimed/forfeited, it will be awarded via 2nd chance drawing. See Official Rules at for full details on eligibility requirements, how to enter, free method of entry, prize claim procedure, prize description and limitations. Void where prohibited.

All Comments (21)
  • @gason1000
    it's amazing how Mark uses the nerf gun to hook u into watching and then secretly makes u learn all about scientists who actually deserve the exposure ❤
  • @mleavitt787
    There are now more of the world’s smallest nerf guns in existence than there will ever be just regular nerf guns.
  • @Kathlanus
    What I love most about this video is 19:25. Give people like these a fun yet seemingley rediciulous project and you never know what kind of idea it sparks in their head.
  • @user-sc3wt9pj2i
    こういうワクワクする実験が未来のエンジニアを生み出すんですよね!是非未来の為に活動を続けて下さい!. 1:40I absolutely love the edit/cinematography here. It's so seamless!.
  • @Knarfy
    Wasn't expecting to learn how cool DNA is during a video about Nerf guns but I am so incredibly here for it.
  • @MawaMaverick
    This guy pulls off something that is clearly extremely difficult to achieve and compresses it in a 20 minute video coupled with happy music. Well done.
  • @KingAlextheKing
    Bro really said "I'm bored lol" and decided to make a nerf gun out of DNA, truly a masterpiece
  • @Annnabannanna
    Mark is actually incredible. Never thought I'd get so hooked into physics.
  • @TimeBucks
    Love more detail on how the DNA was self building.
  • @th3milkman561
    I love how mark’s just like “this is so small, light cant even reflect off of it”. Just so casually as well.
  • @acethefurry3314
    In this video we found another dead ant outside and this time we're building cybernetic limbs to reanimate this ant
  • @Melone10001
    Im a physicist in Nanofabrication. This is impressive on another level. You made a video that children can watch that has more science inside than most lecture courses at university
  • @MemeGod201
    Mark is the guy that will literally remake all of his childhood toys into something insane.
  • @Crazyproaoe
    -ну что потомки, как вы там в 2024? Покоряете космос, вышли в 4ое измерение, летаете со скоростью света? -сегодня мы собрали микроскопический пистолет из которого застрелили муравья.
  • @tnfire614
    I dont think Mark gets enough Credit for what he does. His work and dedication is close to Nobel worthiness.
  • @CincyKid1990
    Mark Rober is a storytelling genius. His ability to trick my kids into loving science, math and engineering is nothing short of a miracle.
  • @TaiwanisMoving
    I think this is probably his best video yet. Every time I was amazed, he went even further. Each step was beyond what I thought was possible. That's a rare feeling to get as an adult, and it makes you feel young again. Thanks Mark
  • @Amiri-xu1ox
    This was nothing short of inspiring! And born from such a simple first idea! A true reminder of what creativity and brilliance the human spirit is capable of, and that - although some might stand out - it's usually not a single person's achievement, but a string of steps taken by a whole bunch of people that lead to mankinds' most amazing feats. Absolutely beautiful.