• Did you think of a question that could be studied, or make an observation that was interesting or unexpected? You should send it to the Question board!

1. The wind can be used as a source of energy. But where does the wind get this energy from? Please trace the flow of energy from its source.
2. Describe three different heat transfer processes that occur inside your oven. Explain how these affect how you use your oven.
3. You can bake potatoes in a conventional oven, or in a microwave oven. Baking potatoes in the oven takes "40 minutes to an hour, depending on their size" in a 425^o F oven, while in a microwave, the length of time to cook depends on how many potatoes you are trying to cook: 4 minutes for one, 8 minutes for 2, ... , a half-hour for 8. The two ways to cook a potato differ in many ways: please discuss how these differences give rise to the different instructions for the use of an oven and a microwave oven.
4. Your car has a radiator. What does it do? What are the heat transfer processes that take place inside the radiator? Why is a frozen radiator a very bad thing (your car now goes to a junkyard)?

Please send us a discussion of two of these questions. We will respond with our own discussion, and maybe some more questions. Don't forget to tell us who is in the group.

In addition to sending your discussion of the questions, please write something in your journal about this question:
3. Comment on the e-mail dialogue with the instructors. For example, what are you doing differently as a result of the email responses that you are getting back from the instructors? What has been helpful (or not so helpful) about their responses in supporting your learning? Please be specific about a particular example.

If there is something that you don't understand about radiation or convection, Ask us!

This is the end of this section. (Check this box )   The next section is about energy transformations