SpaceX’s Busy Weekend

Apparently they test fired the recovered stage last night, as they prepare for tomorrow’s Vandenberg launch:

Elon Musk, the chief executive of SpaceX, confirmed in tweets that the company had just conducted a static test firing of the Falcon 9 first stage. “Data looks good overall, but engine 9 showed thrust fluctuations,” he wrote.

The engine in question, he said, is an “outer engine” on a ring of eight that surround a center engine. Musk suggested “debris ingestion” might be the cause of the thrust fluctuations, with more study of the engine planned.

It will be interesting to see if they have a similar problem on tomorrow’s recovered stage (assuming they succeed, of course), or if it was an anomaly. But they’ll know more after they borescope it.

Also, this is the first I’d heard that they can’t do a land landing tomorrow due to paperwork issues. I think people had been saying it was performance. And it’s pretty silly to worry about the environment, considering all the other activity going on there.

[Update a while later]

SpaceX’s success launches space start ups to new heights.

It’s hard to overestimate the psychological impact of this sort of thing. Ultimately, it will be the death knell for pork projects like SLS.

[Update a few minutes later]

OK, I don’t understand this piece:

Landing on ship at sea offers a greater safety margin, especially as SpaceX ventures farther into space, said Scott Pace, director of the Space Policy Institute at George Washington University. “If you are coming back at higher speed, a small error can mean a large miss distance,” he said. “For safety purposes, you have a wider area to work with with a drone ship.”

A drone ship also offers SpaceX greater flexibility for landings, given the potential for land-based space ports to become crowded, he said. For Sunday’s launch, there’s another, even more practical consideration: SpaceX does not have a landing pad at Vandenberg. In the successful Dec. 21 rocket landing, SpaceX’s Falcon 9 booster came to rest less than 10 minutes after launch at a location about six miles south of the Cape Canaveral launch pad.

Does that make sense to anyone else? As far as I know, the only reason to land on a ship is because you don’t have the performance to come back to the launch site. And Koenigsmann himself said they weren’t coming to Vandenberg because they hadn’t completed environmental paperwork, not because they didn’t have a place to land.

The Campus Turmoil

begins in high school:

…the discussion began, and it was the most unremittingly hostile questioning I’ve ever had. I don’t mind when people ask hard or critical questions, but I was surprised that I had misread the audience so thoroughly. My talk had little to do with gender, but the second question was “So you think rape is OK?”

Like most of the questions, it was backed up by a sea of finger snaps — the sort you can hear in the infamous Yale video, where a student screams at Prof. Christakis to “be quiet” and tells him that he is “disgusting.” I had never heard the snapping before. When it happens in a large auditorium it is disconcerting. It makes you feel that you are facing an angry and unified mob — a feeling I have never had in 25 years of teaching and public speaking.

After the first dozen questions I noticed that not a single questioner was male. I began to search the sea of hands asking to be called on and I did find one boy, who asked a question that indicated that he too was critical of my talk. But other than him, the 200 or so boys in the audience sat silently.

After the Q&A, I got a half-standing ovation: almost all of the boys in the room stood up to cheer. And after the crowd broke up, a line of boys came up to me to thank me and shake my hand. Not a single girl came up to me afterward.

This is almost Orwellian. OK, not “almost.”

Political Poison

My home town, Flint, Michigan, has been in the news recently, and it’s been many decades since good news has come out of that city. Kevin Williamson notes the word that is rarely used in reporting on the story: “Democrat“:

We have a special problem in the United States, which is that the Democratic party is more of a crime syndicate than a political party, and it is deeply embedded in institutions ranging from the universities (where manufactured hate crimes and phony rape cases are used as political weapons) to the prosecutors’ offices (which bully law-enforcement personnel and file specious felony charges against politicians for such ordinary actions as vetoing legislation) to the unions (see California) and the schools. It doesn’t matter how many laws Hillary Rodham Clinton breaks, or how often she lies about it — the attorney general is a Democrat, and that’s that. Tom DeLay can be brought up on felony charges for allegedly having broken a law that wasn’t even on the books at the time he was said to have broken it (the case was eventually laughed out of court, after it had ended his political career, which was the point) but IRS criminal conspirator Lois Lerner is going to spend the rest of her days enjoying a fat pension at your expense.

And the media is complicit.

[Update a couple minutes later]

Blame the Chicago policy-shooting cover up on one-party rule.

New Nukes

A Canadian company has gotten funding to move forward on a molten-salt reactor. I think a lot of sensible people are realizing that if carbon really is a problem, nuclear is the solution, despite the insanity of people like Naomi Oreskes.

But my question is: Would this be a useful tech for space, either for electric power generation or propulsion? The company could do a spin off called Extraterrestrial Energy.

Biting Commentary about Infinity…and Beyond!