Sunday, February 13, 2011

Hell goo 2

And here is the second blog from the awesome Thijs Boerma.

Make sure to check it out if you liked his original project mentioned earlier. I sure can't wait to see what he's come up with this time around. I hope it's even more gross than before.

Peltier coolers: how it all began

I was browsing youtube one day because I was annoyed with my freezer taking 2 hours to turn water to ice. I came along a lot of videos featuring so called "Peltier coolers", which amazed me instantly. For example see this video:

My current project: Peltier cooler

So a little background introduction at first. What are peltier coolers?

Wikipedia says:
"Thermoelectric cooling uses the Peltier effect to create a heat flux between the junction of two different types of materials. A Peltier cooler, heater, or thermoelectric heat pump is a solid-state active heat pump which transfers heat from one side of the device to the other side against the temperature gradient (from cold to hot), with consumption of electrical energy. Such an instrument is also called a Peltier device, Peltier heat pump, solid state refrigerator, or thermoelectric cooler (TEC). The Peltier device is a heat pump: When DC current runs through it, heat is moved from one side to the other. Therefore it can be used either for heating or for cooling (refrigeration), although in practice the main application is cooling. It can also be used as a temperature controller that either heats or cools."
Here's a diagram of a thermoelectric cooler.

(click on the image to view labels)

Hell goo

I just remembered a blog about a guy who kept a world of living goo in a jar for over a year. Mold, dead animals and stuff. Aweseome stuff. Too bad he stopped updating it though. If anyone is interested check it out here:

A pic of his experiment:

So this is it

This is where I'll be writing about my science projects. Feel free to comment on them and post ideas.

Just a list so you know what to expect:

  • Magnetic stirrer
  • Peltier cooling systems
  • Chemistry general
  • Tons of other cool stuff