Have a great holiday

Happy 4th! Here are a couple of random things.

I love the spirit that is celebrated in The Human Powered Home but the physics teacher in me needs to point out that there is no free lunch. The enemy is coming from food in this case. Since most of us could stand the exercise it isn’t bad to use our calories doing something useful but I think the long logistics tail involved in getting our food to our tables casts some doubt on real claims of greenness at the moment.

Google Grader – It’s somewhat of an inside joke but anyone who is suffering with the SchoolMax system can appreciate it.

Google Grader - wouldn't it be nice?

Google Grader - wouldn't it be nice?

Finally I have to mention fireworks.

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