Science, Microscopy, Micro-Biology

and Engineering

                                                                Sam                                                              

Today, we looked at how heat expands things. We had 2 instruments and a Bunsen Burner. These 2 instruments were a brass ball, on a chain, on a brass rod which was connected to a wooden handle. The other instrument was a ring on the end of a rod which was connected to a wooden handle. The brass ball would only just fit into the ring. So, we lit the Bunsen burner, got the instruments ready, got out the fire extinguisher, and started to heat the ball and the ring. It started off pretty bland but then the ring started glowing red. It was getting really hot, but the ball wasn't. After 2 or so minutes, the ball would still fit through the ring, but we kept trying. The ball started to heat, therefore expanding, but the O-Ring that was connecting the ball to the chain was getting hot as well! It started to melt and bend, and you guessed it, the ball fell off into the burner. It was still falling through the ring but it was getting heated so fast that it expanded INSIDE the ring! I could lift up the ball and the ring at the same time. It wouldn't come off. So we took photo's, then we put it in a bowl of cold water and it started to fizzle out. The experiment had worked!

I think this myth is plausable!