Atmospheric Pressure – 2B30.00

Crush the Soda Can – 2B30.10

Crash can 2B30.10-1 Crash can 2B30.10-2

  • Put a small amount of water in a soda can.
  • Partially fill the bowl with water.
  • Bring water in the can to a boil.
  • Using tongs, flip the can over into bowl of cold water
  • Watch the can immediately collapse.

Location: Jacobs B122 – Shelf 022

Magdeburg Vacuum Plates – 2B30.25


  • Use a hand pump to evacuate the Magdeburg plates.
  • About 140 pounds of force are needed to separate them.

Location: Jacobs B122 – Shelf 273

Egg in Bottle – 2B30.47

  • Put 4 lit matches into a milk bottle.
  • Put a hard boiled egg on the mouth of the bottle.
  • The egg is pushed into the bottle by atmospheric pressure.

Location: Jacobs B122 – Shelf 267

Rubber Sheet Lifting a Stool – 2B30.50

Lifting Stool 2B30.50

  • Place a square thin rubber sheet with a handle on a stool.
  • The stool is lifted by pulling up on the handle.

Location: Jacobs B122 – Shelf 264

Vacuum Cannon – 2B30.70

  • Place the vacuum cannon on the table and clamp the pop can holder directly in front of the cannon muzzle.
  • Place a 40mm Ping-Pong ball into the muzzle and roll it all the way down to the stop provided by the vacuum inlet.
  • Place 3-M packing tape onto each end of the cannon taking care to insure that the tape is flat so that it does not have any air leaks.
  • Pump the air out of the cannon with the vacuum pump.
  • When desired vacuum is reached, shut the valve on the cannon and turn off the vacuum pump.
  • Using a sharp object, puncture the tape at the rear end of the cannon.
  • The Ping-Pong ball will be driven out the other end of the cannon by the inrushing air and will puncture several soda cans.

 Location: Jacobs B122 – Shelf 149 & 281 & Demo Room

Spark Gap Alcohol Popper – 2B30.71

Spark Gap Alcohol Popper

  • Add 3 drops of alcohol into the canister and close the lid. Avoid putting too many drops of alcohol
  • Aim the cap away from any people or fragile objects and pull the trigger.

Location: Jacobs B122 – Shelf 264