It’s Science Week once again and my brother’s class is show-and-telling science experiments! Back when I did show and tell, science experiments or arts and crafts were what got me going.
Josh's science 'experiment' [it wasn't really an experiment and more amateur engineering] involved ELECTROMAGNETS!
Just in case you aren’t aware, electromagnets are what you get when you use electric current to induce an electromagnetic field. In this case, my brother and I used a bolt and wrapped wire around it, and connected the wire to the battery. Hello electromagnet with ferromagnetic core!
An electromagnet by itself didn’t seem so impressive, though, so we made a crane.
I especially love the way items from a cosmetics store made its way into our crane's production. I'm pleased with it, even if it doesn't have wheels because we couldn't be bothered with a proper chassis, or getting material for the wheels' axis. Or wheels. We could have used CDs, even, but meh.
It comes complete with a switch, so you can turn the electromagnet on and off at will. I figured not having one was a bit stupid because it’d heat up too much and trying to pull the wires off at that point would be frustrating.
Yay for paper fasteners and paper clips!
2 comments:
The word verification is again amusing me: defers.
I am smiling to myself even as I point at the home made magnets and go "ooooh"
Defers? Hmm. There is no word verification for me at the moment. I feel left out.
Apparently telling people I'm deferring sounds much nicer than uni-drop-out due to re-enroll in 2010, lol.
Post a Comment