angular momentum

Tag archives for angular momentum

Ask Ethan #9: Why everything rotates

“Galileo got it wrong. The Earth does not revolve around the Sun. It revolves around you and has been doing so for decades. At least, this is the model you are using.” -Srikumar Rao It’s the end of the week, so that means its time to take on another one of your questions from the…

“As seismologists gained more experience from earthquake records, it became obvious that the problem could not be reduced to a single peak acceleration. In fact, a full frequency of vibrations occurs.” -Charles Francis Richter You’ve all been around long enough to be familiar with the severe damage that earthquakes can cause, rattling and cracking the…

Big News about Black Holes!

This has been all over my inbox since the press release came out yesterday; it’s been on slashdot (thanks Brian), it’s been at space.com, and there’s a mediocre writeup on Universe Today. What’s the big news? Black Holes don’t destroy information after all! What is this whole information thing, anyway? Take a look at all…

Faster-Than-Light II: Information?

To follow up on the faster than light post here, let’s ask another question: If you can make a way of transferring information that doesn’t involve matter, is that information limited by the speed of light? First off, let’s go over what information is, and then we’ll talk about how transferring information without matter is…