Fernsehturm

Radio tower







"Today, boys and girls, we're going to have fun with science! Did you know you could calculate the mass of an electron using household items? It's true! All you need is a pencil, some paper, dry ice, rubbing alcohol, and a spool of 50 micron thick cobalt-60 wire. And remember: don't put it in your mouth, or instead of becoming a scientist, you'll become wildly radioactive!" - (The Big Bang Theory, S11xE6)