Ahh….no, despite the contents of this ludicrous article. There is no energy in gravity. Gravity is a force that is a function of the mass of two objects, say a brick and the Earth. Force and energy are not the …
Tag: kinetic energy
Video on CleanTech
Here’s a video that presents four different cleantech concepts, with an interesting mix of validity. The first, covering city streets with a reflective white coating, is completely valid, as it causes a significant percentage of the incoming solar radiation to …
Piezoelectric Generation in Roadways
Regarding my response on piezoelectric generation in roadways, Nick writes: I had no idea they produced such a small amount of energy though I did realize they were expensive. Well, I haven’t done the math, but just following the broad …
Follow-up Discussion on Thermodynamics
Here’s the follow-up to my discussion with friends who claim to have observed a violation of the 2nd law of thermodynamics. Of course, I get claims like this at the rate of at least once a week, and I pay …
