Category Archives: Science/Engineering

The problem with Iron Dome

It seems to me that Israel’s new “Iron Dome” short-range rocket interceptor will have the same problem that the American Patriot system does.

It nails the approaching rocket, true, and that’s impressive. But the explosion scatters fragments of the interceptor and the incoming rocket all over the place, some big enough to cause serious damage to people and other living things.

If they scatter on  Gaza, from whence the rockets come, that’s one thing. If they scatter on the Israeli town that’s the target, or points in between, well…

Global warming

“Never have so few fooled so many for so long, ever.” — Ninad D. Sheth

Via Soylent Green

All’s well in Israel

I’m still jet-lagged, which means I yawn all day, but am trying to stick to Snoopy’s advice of not taking naps and waiting until 10 p.m. to go to bed.

A world traveler himself, he says the jet lag may linger until I’m ready to go home. I hope not, but if so, I’ll deal with it.

Weather here is mild, chilly nights, warmish days. Forecast is for warming into the 80s by Monday or so.

I managed to get sunburned yesterday at Caesarea, north of Tel Aviv, beside the Mediterranean surf. Interesting Roman, Byzantine, Arab, and Crusader ruins. Lots of Russian, Canadian and Japanese tourists. Snoop says there are fewer non-Jewish American tourists these days because of what Israelis call “the situation,” which speaks for itself. Though most of the country is peaceful and very green this time of year.

So far we have been to Ben-Gurion’s desert home at Kibbutz Sde Boker, in the Negev, where it actually rained while we were there, for a wonder. Rainfall there averages a little better than an inch a year. Lots of vineyards, however. Grapes grow well there.

Then yesterday, after Caesarea, Snoop’s connections (he is a physicist, his wife is a chemist) got us a tour of the Weizmann Institute, which does basic scientific research in a variety of fields. We saw the Weizvac, Israel’s first computer, which ran on vacuum tubes, and its successor, the smaller but more powerful Golem, built two years before the discovery of the transistor, which led to where we are today—posting travelogues on the Web.

Today we’re off to the Diaspora Museum in Tel Aviv, to try to get a handle on a possible Portuguese Jewish ancestor of mine, and later, sightseeing in the port city of Jaffa. Tomorrow a longer drive to the Golan Heights, stopping along the way at Tiberias and Safed, near the Kinneret (Sea of Galilee), for some old synagogues I want to see.

Once I figure out how to download some photos onto this little Dell netbook of mine (assuming it has enough memory) I’ll try to post a picture.

Texas and Israel: two Lone Stars

And, in addition to the similarity of their national (oops, make that state and national) flags, Texas has plenty of business relations with the Jewish State—especially when it comes to drilling for natural gas in the Eastern Mediterranean that may replace Israel’s dependence on a now-uncertain Egypt.

Why We Get Fat: And What To Do About It

Time was, many moons ago during the Cold Fusion nonsense, when science journalist Gary Taubes and I did not hit it off. He was incensed that I would write a story about a Texas A&M researcher who insisted he had replicated the (now) infamous Utah claims. I found Taubes to be, well, overbearing.

That was then. Now he’s written a terrific book, finally unmasking the diet hoax the government and Big Health and their press-release-rewriting collaborators in the legacy media (looking at you New York Times) have been pushing all these years, resulting in an obesity epidemic (and a growing diabetes one), which they still refuse to own up to.

Taubes, in essence, has given the Atkins Diet the respectability it has always deserved. Instead, it still is repeatedly tarred by the likes of the NYTimes, the American Heart Association, and the American Medical Association.

A restricted (or, better yet, no) starches, grains and sugars diet was well known to help people lose weight and keep it off, without any threat to their health, at least as far back as 1825. Taubes shows it all, and how it was confirmed by subsequent research and endured as the best advice available until it was undermined by Big Health’s low-fat drivel in the 1960s.

So, if you’re struggling to keep your weight (and blood pressure) down, while eating all that high-sugar, high-carb, low-fat junk the processed food industry churns out, do yourself a favor and get Taubes’s book. He wrote another, high-sciencey one, annotated with all the proofs. But unless you’re especially hard to convince (or you work for Big Health), you can skip that one.

SpaceX expanding Texas op

MCGREGOR, TEXAS – Space Exploration Technologies (SpaceX) and the City of McGregor have signed a lease agreement allowing SpaceX to expand the size of its rocket development facility in McGregor—between Austin and Dallas.

Under the deal, SpaceX will lease 631 acres — the equivalent of almost 500 football fields — for its test facility. The new lease will more than double the size of the current 256 acre site on the Western edge of the City of McGregor, and will last roughly 10 years, from February 2011 to January 31, 2021.

“Our Texas rocket development facility is critical to our operations,” said Elon Musk, SpaceX CEO and Chief Technology Officer.  “This lease will allow us to move forward on the growth we have planned for Texas. SpaceX already has more than $2.5 billion in launch contracts for us to carry out over the next few years – McGregor is going to be a very busy place.”

Grocery carts and fecal bacteria

Yech. I have always taken the carry basket, even when I had to struggle to haul everything in it. Now I have real incentive to skip the push cart.

Though, come to think of it, the carry basket handle could be as bad. So, either carry bacterial wipes when I go to H.E.B., or wash my hands after.