Here are some pictures and a physicists take of a fantastic hail storm which took place west of Jerusalem in October 2004. The largest stones were up to 5 cm in diameter and several car windshields were shattered!
A few days ago I stumbled upon an interesting article from Time magazine, entitled: "Another Ice Age?". No it is not a recent article. It is politically incorrect to talk about global cooling these days. The article appeared in 1974, after "three decades of cooling" prompted some to believe that an imminent ice-age may be coming. It is interesting to read it in perspective, and perhaps there is a lesson we could learn from it. Here are a few excerpts from it. Read and enjoy.
Everyone in Israel has heard of the Galsgow scale. Why? Because our former prime minister Ariel Sharon was and still is in a coma. The Glasgow scale, of course, measures the level of consciousness (or lack of). Ariel Sharon, for example, scored 6 out of 15. 8 or less is defined as a coma. 6 doesn't sounds that bad, doesn't it? So why am I writing about it? What's so curious?
Anyone who runs a website knows that a successful site has to have a high Google PageRank. Unfortunately, though, Google updates their publicly available PRs only every a few months. Moreover, the PR is only given in discrete increments, so it is hard to know whether a site improved if the actual increase is less than a PR point on average. Given that I am curious about the PR of my site, I thought I should do something. And I did, the bottom line of which is a calculator to estimate the PageRank of any site you wish.
basic stellar parameters using the tendency for energy equipartition. In particular, the temperature at the center of the sun, the mass-radius relationship of white dwarfs and their Chandrasekhar limit are all estimated. These were taken from my order-of-magnitude course notes.
Analysis of the classic
homemade water rocket, taken straight out of my first year physics majors classical mechanics notes. There is even a rocket simulator with which the trajectory can be calculated and graphed.
A conversation I had with a friend made me realize something interesting. Modern medical technology is responsible for the constant degradation of the human gene pool. How? Simple, we allow bad genes to propagate.
No, I don't hate Bill Gates. He is doing what everyone would do in a similar situation. Could I hate a man I envy? What I do hate is Microsoft products which aim at the lowest common denominator, the fact that Microsoft is deliberately ruining the software industry, and that most windowers don't realize it and are happy with Microsoft's mediocracy.
My almost 3 year old daredevil son broke his hand in his last escapade.
I found the x-ray rather cute, and interesting... you can see how his bones are forming. He learned not to jump from high places, and I learned all about bone age...
The demise of Shinui party in the last Israeli parliamentary elections (March 2006), made me realize that Shas and Shinui should probably follow the Lotka-Volterra equation. As I explain below, the problems are not totally equivalent for several reasons. Nonetheless, many of the L-V elements exist in the Shas/Shinui pray/predator system...