Marvin & Milo

Potato puncture

Potato puncture


 What you need:

A raw baking potato

A new straw

A thick glove



Hold the potato with the thumb and forefingers of a gloved hand. Don’t put your hand behind the potato!

Make a fist with your other hand, grasping the straw firmly about two-thirds of the way up.

Use a fast, thrusting movement to force the straw into the potato.


Results & explanation

The straw should go in, but if you try to twist it in slowly, it doesn’t work.

The rim of the straw has a very small surface area, so you have a small amount of potato to displace and your sharp movement delivers a large force on it in a brief instant, which works much better than a slow twist.


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