Thermal Radiation: internal Heat

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Today Brian Jones and Sheila Ferguson came to the youth journalism day at the Denver Post to teach about thermal radiation. Thermal radiation is the internal heat coming off of objects.

Today Brian Jones and Sheila Ferguson came to the youth journalism day at the Denver Post to teach about thermal radiation. Thermal radiation is the internal heat coming off of objects.

Jones and Ferguson own a small business called the Little Shop Of Physics. Jones started the company and Ferguson was an early employ. They go around teaching teachers and students science and they create experiments. There goal is to make science real for people.

Through out the day they had three experiments. The first was looking through a camera that showed thermal radiation of the objects. We learned that humans thermal radiation is the same as 40 light bulbs. Though the camera you see black and white. The white is hotter and the black is colder. Jones explained that clouds have a warmer thermal radiation so a clear night cools off more so than a cloudy night.

The second experiment was with a lamp, three glass layers and a black plate. The lamp/sun passed thermal radiatio through the glass to the plate and the glass plate sent off thermal radiation through out the other layers. The top layer was the coldest and the bottom was the smallest.

The final experiment was with a pack with a clip and water and you can pop the clip and the liquid started to freeze. The crystal started to spread and the liquid let out energy which caused the pack to heat up.

We all got a small thermometer that tells the thermal radiation of the objects that you pointed it at. Also we got one of the freezing backs.

Ferguson said, “everyday is different and I learn everyday. We are always doing experiments and I get to work with everybody and they all are excited about it.”

For more information go to littleshop.physics.colostate.edu.