I've seen comments of that nature for the powering of televisions or laptops and it is a neat idea - while you're burning calories you get to Do Something else. Or while you're Doing Something that usually Isn't Exercise you get exercise. I'm not sure it's entirely practical, but I can see the appeal. But there's something even simpler than that ( Read more... )

The most exciting phrase to hear in science, the one that heralds new discoveries, is not Eureka! (I found it!) but rather, "hmm.... that's funny...." -- Isaac Asimov

Also, when the high temperature was achieved, the Z machine was releasing more energy than was originally put in...

Normally I'd dismiss such a claim as crackpottery, but this was ( Read more... )

In the Spring and in the Fall there are times when I don't need to run the rear window defogger or the air conditioner in my car. If I drive mostly highway miles on a tank of gas then, I can get almost 40 mpg. Almost. Somehow I never quite seem to make it to 40 mpg. The last tank, however, did it. I got better than 42 mpg. While it was mostly ( Read more... )

Someone probably thought of this before, but even so, here is a bit of speculation probably loaded with wrong assumptions and horrible oversimplifications.

( Some thoughts on time travel... )