137K views · 412 reactions | This is so addicting! One more time?  For step-by-step instructions go here: https://mel.sc/sOE/ For cool and safe experiments to do at home, sign up for MEL Science here: https://mel.sc/sOF/ | MEL Science | Facebook

Reverse Cartesian Diver https://physicsfunshop.com/ Physics puzzle: On the left is a Cartesian diver- pressing on the bottle forces water into the glass diver, which then compresses the bubble in diver’s head allowing it to sink. On the right is a reverse Cartesian diver- again the bottle is pinched but this time the diver ascends- why? (See video in comments for hint) ➡️ Follow the linkabove for info on how to make this device and find other amazing items featured here on Physicsfun | Physicsfu

Cartesian Jellyfish: increasing pressure in the water compresses air bubbles inside the plastic capsules, filling them further with water making them sink in this cute version of the famous Cartesian Diver toy. In this whimsical version the jellyfish also spin when the pressure is released as the water is channeled out of the capsule/head in a sideways jet. Pascal’s principle states that any change in pressure on an enclosed fluid (such as squeezing the plastic bottle) is transmitted evenly to e