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Space

SpaceX Tests Its Raptor Engine For Future Mars Flights (techcrunch.com) 98

Thelasko writes: Elon Musk is preparing to unveil his plans to colonize Mars at the 67th annual International Astronautical Congress tomorrow. As a tease to his lecture, he has released some details about the Raptor engine on Twitter, including pictures. Mr. Musk states that, "Production Raptor coal is specific impulse of 382 seconds and thrust of 3 MN (~310 metric tons) at 300 bar." He goes on to note that the specific impulse spec is at Mars ambient pressure. The Raptor interplanetary engine is designed for use with Space X's Mars Colonial Transporter craft. Musk notes that the "chamber pressure runs three times what's present in the Merlin engine currently used to power Falcon 9," according to TechCrunch. "Merlin has specific impulse of 282 seconds (311 seconds in the vacuum of space), and a relatively paltry 654 kilonewton (0.6 MN) at sea level, or 716 kN (0.7 MN) in a vacuum. You can view a picture of the "Mach diamonds" here, which are visible in the engine's exhaust.

Comment Re:She's right (Score 3, Insightful) 142

I love how graphs made by deniers even have a hockey stick.

But they drew a little lip at the end, from which they can project centuries of flat temperature, or perhaps even a decrease!

They should make up their minds. If the warming trend is natural and not at all bad for us, why not draw the graph realistically? What compels them to sugar-coat their own sad "me too" rebuttal?

Comment Re:Liberals and their insults (Score 1, Insightful) 116

Other than name calling

I wasn't calling you a name, I am asserting you are stupid. The evidence is your belief in a conspiracy. Do you deny the evidence?

Name one thing that Clinton has done *ever* that has benefited the American people?

Well, for one thing, she just trounced Sniffles McPumpkinface, which was better value for our entertainment dollar than all episodes of "The Apprentice" combined.

Comment Re:Everything Trump does is bad (Score 3, Informative) 116

Why is it that, in the media, everything Trump does is "bad".

Probably because everything he says or does in the public sphere is cringeworthy.

Why don't you go one step further and claim that his own words were placed in his mouth by the liberal media conspiracy. You guys are practically that dumb already.

Comment OH HELL NOES! (Score 1) 161

I believe the real solution would be to invest the billions in AI.

Do you want terminators? Because that's how you get terminators.
Build an AI and ask it to eliminate all diseases.


Better to blow it all on beer and dressing monkeys up as civil war reenactors. That way we keep the number of gunshot wounds down to a reasonable level.

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