Quote (shamo @ Fri, 22 May 2009, 15:07)
A very very simple one:
Fill a bowl with some liquid that doesn't catch fire, place a couple of burning matches in the middle and put a glass over it

watch the liquid be sucked into the glass (which is upside down) due to the vacuum created by the matches :pp
Not so fun

Quote (KrystalS_eEXPipi @ Fri, 22 May 2009, 15:11)
I've always been a fan of generating current due to changes in magnetic flux. Obtain a coiled wire (1000 coils or so) and a relatively strong bar magnet. Complete a circuit and attach an ammeter to the circuit. Move the bar magnet through the coils and you will see that current has been generated.
Hah cool, maybe instead of an ammeter, I could add something else. I don't think we have a ammmeter. I'll think of something

Thanks.