This is the future of space exploration. Which is why we have to stop talking about “exploration” as a justification for humans in space.
[Update in the evening]
Commenter Paul Dietz recommends >Saturn’s Children
Slow Weekend
Yesterday morning, a dump truck lived up to its name and deposited dozens of bags of mulch (malaleuca–I know you were dying to know), top soil, potting soil and sod in the yard, in a large high-entropy pile. We are still dealing with the aftermath of this event (which was not only planned, but cost us a few hundred bucks). Also, I’m working on a piece for Popular Mechanics on the fate of ISS after Shuttle.
Compound Interest
Some interesting thoughts on the insane notion of banning it to save the planet. Also, comments about law students’ economic literacy.
Was Barbie Wrong?
Girls have caught up with boys at math.
Does this vindicate all of the mature, liberated women who had to hie to their fainting couches at Larry Summers’ comments a few years ago?
Not really. He never said that boys were better, on average, than girls. His comment was that there was a much higher standard deviation for boys, which was why there were more brilliant mathematicians among them (it also means that there are more innumerates among them). This was posited as a possible explanation for the disparity in math PhDs and faculty between men and women, a conservative proposition for which he was hounded from the presidency of Harvard (though it was really just the last straw, and excuse).
Israeli Thoughts On The Messiah Visit
From Carolyn Glick:
I generally try to stay as far away as I possibly can from people who say they can make oceans recede. Our paths didn’t cross. In fact, I managed to be out of the country on Wednesday.
…Obama acts like a European leader in his treatment of Israel. On the one hand, he professes this profound respect for Israel and the Jews, and goes on and on about how our security is important to him. On the other hand, he espouses policies that undermine Israeli security and threaten its survival, and demands that the Jewish state become the only state that turns its other cheek towards our enemies as they try to kill us. This is the same sort of message that we hear from all Europeans leaders. And it is tiresome and insulting.
Beyond that, Obama is in a unique situation because of the adulation he enjoys from the U.S. and Western media. The media is willing to ignore all of the substantive contradictions inherent in his policy pronouncements and to base their support for him on a quasi-religious faith. I don’t remember this ever happening before in an American election — at least not to the same extent. It is an interesting sociological phenomenon that is worthy of academic research. On a political level, it makes debate very difficult since Obama is treated more as a symbol than a politician. And it is hard to debate a symbol.
How long before this bubble pops? Robert Bidinotto thinks it may have already started.
Comments Hygiene
I’ve banned a moronic anonymous commenter that seems to have nothing of value to contribute, and is so illiterate that it can’t even manage to spell my last name right. Just in case anyone was wondering. I grow less tolerant of such juvenile nonsense as time goes on. If the creature persists somehow, I’ll just delete the posts as well (probably should anyway).
The Runaway Ego Of Barack Obama
The presidency as therapy?
That was a big problem with Bill Clinton.
The Fat Fight Continues
John Tierney has the latest:
What we have to keep in mind here is that nutrition is a science (or at least should be) and science is about generating hypotheses, making predictions from our hypotheses, and then seeing if they hold true. The relevant hypothesis here — i.e., what we’ve believed for the past 30-odd years — is that saturated fat causes heart disease by elevating either total cholesterol or LDL cholesterol, specifically. So our prediction is that the diet with the higher saturated fat content will have a relatively deleterious effect on cholesterol. We do the test; we repeat it a half dozen times in different populations. Each time it fails to confirm our prediction. So maybe the hypothesis is wrong. That seems like a reasonable conclusion. No one is proving anything here — as some of your respondents like to decry — we’re just looking at the evidence and trying to decide which hypotheses it supports and which it tends to refute.
…These latest trials just happen to be the best data we have on the long-term effects of saturated fat in the diet, and the best data we have says that more saturated fat is better than less. It may be true that if we lowered saturated fat further — say to 7 % of all calories as the American Heart Association is now recommending — or total fat down to 10 percent, as Dean Ornish argues, or raised saturated fat to 20 percent of calories, as Keys did, that we’d see a different result, but that’s just another hypothesis. The trials haven’t been done to test it. It’s also hard to imagine why a small decrease in saturated fat would be deleterious, but a larger decrease would be beneficial.
I think that what the nutrition industry and the FDA have done over the past decades with their pseudoscience war on dietary fat borders on the criminal. I’m pretty much convinced at this point that the biggest culprit in both our health and weight is starch and refined sugars, and that the FDA “food pyramid” has been, and remains (despite recent improvements) quackery, not science.
He Brought Light Unto The World
Gerard Baker finally sees the light himself:
As word spread throughout the land about the Child’s wondrous works, peoples from all over flocked to hear him; Hittites and Abbasids; Obamacons and McCainiacs; Cameroonians and Blairites.
And they told of strange and wondrous things that greeted the news of the Child’s journey. Around the world, global temperatures began to decline, and the ocean levels fell and the great warming was over.
The Great Prophet Algore of Nobel and Oscar, who many had believed was the anointed one, smiled and told his followers that the Child was the one generations had been waiting for.
And the polar bears rejoiced.
Unmitigated Risks
Ares 1 marches (or staggers) on:
Thrust Oscillation is specifically named in relation to end of the first stage burn of Ares I-X, which requires mitigation – proposed to be in the form of high strength fasteners.
“Preliminary results show lower axial loads and higher lateral loads during thrust oscillation at the end of the FS (First Stage) burn (T+120sec). Proposed mitigation (high strength fasteners in impacted hardware) in work, needs to be presented at ERB (Engineering Review Board).
Afraid it will shake apart? Use bigger screws!
I love this, too.
While beefing up the structure is a mitigation for the hardware, Ares I-X’s components are also in the TO firing line, with the most concerning element referencing the Flight Termination System (FTS) – which may require a range waiver due to the potential TO could exceed the components certification, and the threat of vibrating them out of action.
“Requirement – Range Safety: multiple waivers. Lack of dual S&A device. Lack of initiation of LSC at both ends. Lack of “CRD Self-test” capability. Minimum separation of FTS components,” added the presentation.
We may massage the thing so hard that we won’t be able to blow up the vehicle if something goes wrong (e.g., it starts blasting toward the VAB). Can we have a waiver, please?
NASA’s unending ability to waive itself from its own requirements is one of the reasons that the notion of “human rating” is nonsensical.
[Early evening update]
Link to NASA Space Flight was bad before. It’s fixed now. I’m kind of surprised that it took all day for someone to point it out. Just more evidence that most people don’t follow the links, at least if I post significant excerpts and/or commentary on them.
[Update a couple minutes later]
Rob Coppinger has Ares 1, then and now. That upper stage has really grown. I also hadn’t realized that it had a common bulkhead for the tanks. Well, at least it’s not hypergolic.