The Physics of Everyday Life

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We got some new LEDs to replace the old ones we installed last winter. The old ones were not right from the day we got them, and since, they have lost their light output. The new ones act like they are supposed to, they are many times brighter, they have a much wider viewing angle, cheaper per amount of light output, more efficient, and give a nice white light. As you can see in the picture, these new LEDs need to have a big heat sink. So far we really like them.
There were some major topics and minor topics discussed. Major ones included the fact that there are other groups that are overlapping some of our efforts and it would be good to combine forces to reinforce and take advantage of our mutual interests. Cooperative extension was one example, the historical societies and hands on museums were another. Minor ones included a sign up sheet at Richard and Aimee's Arc neighborhood party later this month. The list would include topics people would feel comfortable teaching to small groups and topics that you wanted to learn about. Patricia also wanted to get a women's skill study group started that would cover topics such as woodworking, home repair, home wiring, plumbing and welding. I offered to teach them with her.