Archives for August, 2009

Weekend Diversion: Giving until it HURTS!

When I issued my Charity Challenge to you a few weeks ago, I had no right to expect the support that all of you have given me. So listen to Michael Chapman singing Memphis in Winter while I give you what you gave for: We have reached: 101 separate donations, at least $3,260 in new…

Older than Dirt?

Every once in awhile, a question makes it to my inbox that’s too good to ignore. A friend and I were joking about being “older than dirt” and he asked a question I thought you might enjoy: “Hey, ask Ethan how old dirt is and how it got here.” You did the smart thing by…

The Wall Street Journal has just reported that over 1,000 people in the Americas, according to data released by the World Health Organization, have died from the Swine Flu. They seem to think you should be alarmed. The global A/H1N1 swine flu pandemic has claimed 1,154 lives since the outbreak was identified in April, data…

Last week, we began talking about understanding the size of the Universe, and we continued this week with some information on distances and motion in the Universe. This brings us to my favorite application, which leads to the Hubble expansion: Redshift. You see, whenever an atom or molecule emits light, it gives off that light…

This week’s Carnival of Space: #114

Those of you who’ve been reading this site regularly know that we’ve been very busy of late, finishing our series on the last 100 years, working on raising money for charity, and discussing the deep issues of distances and motion in cosmology. But there is a whole lot of other space news buzzing around the…

At the end of last week, I wrote a post explaining how the Universe is so big (93 billion light years across) when it’s only 13.7 billion years old. The key visualization is to think of space as being the surface of an expanding balloon, while all the things in the Universe (stars, galaxies, etc.)…

Weekend Diversion: I am Altering the Deal

I am altering the deal. Pray I don’t alter it any further. Ahh… good old Star Wars. So, I am altering the deal. Two weeks ago, I told you all that we were having a charity challenge, and that if I got 100 of you to donate either money ($10 minimum) or time (4 hours…