Category Archives: Science/Engineering

The 2009 Orionid Meteor Shower

The worst thing about meteor showers is the best time to see them often is right before dawn. So, unless you can afford to stay up all night, you need to get up early Wednesday to see the Orionids–a stream of debris from Halley’s Comet falling through the atmosphere. Where to look? Overhead.

The next-to-worst thing about meteor showers is that the skies are often cloudy. So you go back to bed. Then, the astronomers who predict the next one will be the best in a long time are often wrong. They’re predicting the Orionids this year will be the best in a while. Dozens an hour. But, once again, if they’re wrong, you can always go back to bed. And, if they’re not and the skies are clear, enjoy the show.

Focus fusion’s first “pinch”

This looks promising. The dream of a fusion reactor in every basement. Or, at least, in the backyard.

Aurora

aurora.jpg

Don’t recall where I got this, but it’s in honor of David Nelson, an old OCS classmate in MA, who awoke this morning to thirty-four degrees and heavy snow. As he says: "Good infantry weather!"

Via AlphaInventions.

Solar cycle 24 is getting weird

Comparing the previous solar minimum (June ’96 to Sept. ’98) with the current one (June ’07 to Sept ’09) shows something strange is happening to Sol. (Scroll down at the link to the yellow-headlined comparison "latest trend charts" on the right side for the chart of the spotless days in each period). Not that solar science has enough observation history behind it to be sure of much of anything.

Meanwhile, the weather is confirming the old idea that Sol controls what happens down here. When you consider that 1998 was the warmest year recorded globally, and the planet has been cooling ever since, it’s not hard to understand why winters are coming earlier and part of the country’s northern tier already is covered with snow that is not melting but is increasing. Not that we mind the rain we’re getting after our long drought, but you have to wonder. Whatever is going on it seems to have very little to do with the CO2 that has the Democrats hot to tax coal and oil out of existence.

Via the Seablogger. PLUS: Record October cold in Minnesota.

The trouble with Star Trek

Science fiction writer Charles Stross ruined his Merchant Princes series for me with its explicit anti-Bush politics, but I agree with him about Star Trek. I liked it when it was new in the 60s, even retained some interest in it in the 80s. Now I see it’s as bad as the old Edgar Rice Burroughs’ tales of Mars.

That’s because, as CS says, ST merely pastes the sci and tech on top of its storyline, whereas good scifi builds the storyline out of plausible sci and tech which informs the story’s world. Now if he’d just forgone using his fiction for his personal political propaganda, I’d still be looking forward to his books.

Via Instapundit.

Red Mars

I finally got hold of this first novel in Kim Stanley Robinson’s 1990s Mars triology. Now I understand what the fuss was about over this series of tales which still sell well on Amazon. As the cover blurb on the 1993 edition, by Arthur C. Clarke, has it: "It should be required reading for the colonists of the next century." Well here we are in that century and polls show and pols say there’s not enough interest in going to Mars to bother.

The novel is still good. It’s light on the tech and the sci but heavy on the human relationships among the First Hundred colonists of Americans and Russians. And their one-way vehicle to Mars in 2026 (still time for that) is nicely practical: a cluster of rotating toruses made of interconnected fuel tanks from shuttle stacks taken into orbit (rather than discarded over the ocean) by both the American shuttle (retiring next year) and the old Soviet one (which only flew a few times).

So that’s impossible, but day-to-day life on Mars nevertheless is compelling. The tale makes me want to put on my "walker" and helmet and go for a lope in the low g, guided by a personal AI on my wrist, even if the Net is still confined to pre-Web bulletin boards. Among my favorite tech description is the building and subsequent use of a space elevator between Pavonis Mons and a captured asteroid. Thirty-story elevator cars make the journey up and down in five days.

Once out of the Mars gravity well, it’s much simpler (and cheaper) to board a rocket for earth, or arrive on one and take an elevator down to the planet. Now I’ll go back and reread the second book and finish the third one, with much more appreciation than I had trying to read them first.

Bossy gives more milk

The 2009 Ig Nobel Prize for Veterinary Medicine goes to Catherine Douglas and Peter Rowlinson of Newcastle University, Newcastle-Upon-Tyne, UK, for showing that cows who have names give more milk than cows [who] are nameless. Makes sense to me, but, then, I am not a dairy farmer. How about it, Diller?