How-To Geek

Liquid Nitrogen + 1500 Ping Pong Balls [Video]

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In this wish-we-were-there hands on science demonstration, Dr. Roy Lowry combines liquid nitrogen, hot water, and 1500 ping pong balls into a spectacular lesson.

[via Neatorama]

Jason Fitzpatrick is a warranty-voiding DIYer who spends his days cracking opening cases and wrestling with code so you don't have to. If it can be modded, optimized, repurposed, or torn apart for fun he's interested (and probably already at the workbench taking it apart). You can follow him on if you'd like.

  • Published 09/25/12

Comments (10)

  1. r

    …a spectacular lesson in finding & picking up 1500 ping pong balls.
    –could have done fine without the first 3:30 min

  2. andyr354

    Great. Dry ice would be easier to get a hold of to replicate it :)

  3. Jeremy

    I don’t think dry ice would have the same effect. It takes longer to evaporate and I don’t believe it would expand at a fast enough rate to cause that kind of reaction. He used liquid nitrogen, dry ice is carbon dioxide.

  4. Ludek

    IMO it’s not speed of the reaction but the bottle been torn apart in one moment by the pressure what makes the explosion.
    Therefore the question is if the bottle full of solid CO2 would be enough when evaporating, or if the bottle is strong enough to hold it in semi-vaporated state. That depends on outside water temperature as well.
    A call for dry ice remake!! :-)

  5. Iszi

    Awesome video. Too bad it was taken down by the University. A similar demonstration was done on The Ellen DeGeneres Show though, and is still currently on YouTube.

  6. Vorlock

    Wow, removed from youtube…

  7. Delebre
  8. KoolerTheFirst
  9. Dano

    Used to do this all the time as a kid with dry ice. You fill the bottle about 2/3 with water, then add as much dry ice as you can fit. Ridiculously loud. Same principle as the “smoke” on Halloween.

  10. Ushindi

    @Delebre: Thanks for the link. Strange they removed it from YouTube but it’s still available on Wimp…

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