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  • Most people know that you can melt ice just by putting salt on it.

  • Salt decreases the melting point of the ice, meaning it'll mount faster.

  • What's another way to decrease the melting point of ice?

  • The answer is, you apply pressure to it tonight.

  • I want to do an experiment on regulation.

  • Regulation means you apply pressure to ice, and so it turns into water.

  • But when that pressure is removed, it turns back into ice.

  • I have two pairs of 1.5 kilogram weights.

  • This pair is joined by a bit of fishing line, and my other pair is joined by some copper wire.

  • They're both the same thickness.

  • Now.

  • I'm going to put the wire and the fishing line over this block of ice and tryto pull it through the ice.

  • And I want you to make a prediction which one will pass through the ice.

  • First will be the copper wire or the fishing line.

  • Or will they both passed through at the same rate?

  • Make your prediction.

  • Now you got about five seconds left.

  • Quick, pick one.

  • That's too late.

Most people know that you can melt ice just by putting salt on it.

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