Evolution, creationism, and intelligent design are words that many people have extremely strong opinions about. Regardless of how you feel about why the laws of nature are what they are, which have evidently allowed us to exist, the evidence for the validity of the theory of evolution with one major mechanism being natural selection is … Read moreAn amazing video on Evolution and Intelligent Design
One of the perks of being a postdoc at a place like the University of Arizona, one of the top places in the US for astronomy, is that we get a number of really interesting visitors. Today we got paid a visit by Tommaso Treu, an astronomer at UC Santa Barbara. He spoke to us … Read moreAn amazing discovery: a double Einstein Ring!
The first serious advocate of modifying Newton’s laws instead of postulating unseen (or dark) matter was Moti Milgrom, from whom today a new article appears on the astrophysics preprint archives. In particular, Milgrom asserts the following: MOND predictions imply that baryons alone accurately determine the full field of each and every individual galactic object. These … Read moreMOND vs. Dark Matter
Dave, one of my online chessplaying buddies, asked me this question (edited for appropriateness): Now this speeding up of the expansion of the universe: Do I understand correctly that one of the theories to explain why relates to “dark matter”? In real simple terms, what in the dark blue blazes is dark matter, and why … Read moreFirst question!
Taking a look at the background picture, and wondering what it is? It’s the Bullet Cluster, also known to astronomers as 1E 0657-56. What’s so special about it? Well, these are actually two galaxy clusters that are in the process of merging, and are colliding with one another! Although this is very cool (and rare) in … Read moreWhat is that Background?
In preparation for the launch of startswithabang.com, I am attempting to embed a video I had found on youtube, of the slow-motion ignition of a lighter. How does this work? The video demonstrates that to make something very simple happen (to get a sustained, controlled flame out of a compact piece of equipment), a lot of … Read moreSetting up for the Blogosphere