What is silly puddy?

[samj_13]

Can you pour crashed cars?

Maybe if they burst into flames and melt...

Yep (and yep to EE) - custard is a thixotrophic liquid. As soon as you apply pressure (stamp on it), it solidifies - the greater and quicker the pressure, the more solid-like it becomes. Stop applying pressure (by standing still on it) and it's a liquid (and you sink).

Just like corn startch and water?

We did a bunch of experiments like that at a camp I went to in 6th grade.

 

[HACKr]

"Puddy" is an affectionate term for a cat.

Silly Putty, on the other hand is a liquid - a viscoelastic liqud (referred to as a "thixotrophic liquid") like custard. Its normal resting state is a liquid - a very viscous one like crude oil - but when subjected to stress it will become an elastic solid. It's part of a family called "non-Newtonian fluids".

And yes, I said custard.

You ruined it, I thought I knew something.

 

[Famine]

Wasn't it that show with the the scantily clad big boobed women?

It had Richard Hammond as the host.

Yes to both.

Just like corn startch and water?

Exactly like that - anything with corn starch/cornflour in it works like this (custard, instant whip, gravy).

 

[samj_13]

Exactly like that - anything with corn starch/cornflour in it works like this (custard, instant whip, gravy).

Do you know why and/or how this happens? I've always wondered how it works. Also, isn't there a prototype body armor made out of a viscoelastic liquid? I thought I heard of that somewhere.

The Tempurpedic beds are made out of viscoelastic memory "cells" too.

 

[Famine]

Do you know why and/or how this happens?

Yeah, it's all down to starch molecules - basically lots of sugar molecules nailed together. They'll normally glide past each other without much fuss, but if you compress them their various bonded groups lock with each other so they can't slip.