Happy Arbor Day everyone.With all of the talk about Global Warming and Human responsibility, here's something you can do: Plant a tree. The National Arbor Day Foundation has been encouraging responsible environmental stewardship for over 100 years.Plant...
Philosophia Naturalis #9
I'm going to try something a little different this time. There have been (as usual) some interesting news stories in the physical sciences recently, and I'm going to start by featuring blog articles that discuss them. So let's get to work.Extrasolar...
Hubble's View of Barred Spiral Galaxy NGC 1672
Hubble's View of Barred Spiral Galaxy NGC 1672This NASA Hubble Space Telescope view of the nearby barred spiral galaxy NGC 1672 unveils details in the galaxy’s star-forming clouds and dark bands of interstellar dust. NGC 1672 is more than 60 million...
The Purple Rose of Virgo
The Purple Rose of Virgo (3/27/07)Until now NGC 5584 was just one galaxy among many others, located to the West of the Virgo Cluster. Known only as a number in galaxy surveys, its sheer beauty is now revealed in all its glory in a new VLT image. Since...
Addiction to tanning?
Summer is coming in the northern hemisphere, which means, perhaps, more time in the sun. We had a look here at the surprising role that the anti-cancer protein p53 plays in tanning. Beyond that, we know that getting a tan feels good, if not overdone...
Carnival of Mathematics, Ordinal 5
This edition of the Carnival of Mathematics is dedicated to the memory of Paul J. Cohen (April 2, 1934 - March 23, 2007).Ironically, he died just 2 weeks ago, the date of the previous edition of this Carnival. Here's the New York Times obituary. There...
Fields and Galois theory
Here's the next installment of our series on algebraic number theory. In the last installment we had a quick look at groups and rings. Now it's time to look at field theory, with special emphasis on what is known as Galois theory. The latter is all about...
Philosophia Naturalis #8 is (finally) up
And you can find it right here. We apologize for the delay, but there's some really, really good stuff in this edition. Thanks, Suj...
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