contrarian's latest activity
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Ccontrarian replied to the thread China signs deal with Russia to build a power plant on the moon — potentially leaving the US in the dust.And that is part of the problem. The reactor is going to be assembled on the Moon. It is not going up in one go. The problems which...
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Ccontrarian replied to the thread China signs deal with Russia to build a power plant on the moon — potentially leaving the US in the dust.Hard to imagine fuel rods staying intact during a de-orbit. Unless they are designed to survive (unlikely), they will disintegrate. The...
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Ccontrarian replied to the thread China signs deal with Russia to build a power plant on the moon — potentially leaving the US in the dust.If the rods disintegrate on launch (very likely), they would spread radioactivity over the "landing' zone, which could pose hazards to...
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Ccontrarian replied to the thread China signs deal with Russia to build a power plant on the moon — potentially leaving the US in the dust.Good to see these two spending a lot of money on space exploration rather than on weapons of war. China is doing too much of that...
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Ccontrarian replied to the thread The moon doesn't have a magnetic field, so why does it have magnetic rocks?.The Moon's magnetic field strength in its early days is open to debate. Mars has a similar magnetic surface, with the most highly...
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Ccontrarian replied to the thread 1 year before?.The CCCP did beat NASA to the moon with Luna-9*, a robotic craft than soft-landed on 3 February 1966. Curiously, that did not seem to...
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Ccontrarian replied to the thread A systematic approach to the concept of "time".It depends on your gravitational field strength, at the very least.
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Ccontrarian replied to the thread U.S. Space Force general selected to lead Trump's $175 billion Golden Dome space defense program.It is also highly destabilizing, and will almost certainly cost much more than quoted. We should not be funding an arms race in...
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Ccontrarian reacted to Bhodi Li's post in the thread Stage 1 Reaching Escape Velocity And Returning with
Like.
The muzzle velocity of a slug from a .44 magnum can be 1000 mph. The muzzle velocity of a .220 Swift slug fired from a .220 Swift... -
Ccontrarian replied to the thread 1 year before?.We also had the best rocket scientists, captured after WWII (Wernher von Braun, et al.). The primary reason the Soviets beat us into...
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Ccontrarian replied to the thread Stage 1 Reaching Escape Velocity And Returning.Just for clarity, escape velocity is not the same as going into orbit. Orbital velocity requires about 17,500 mph for LEO. Escape...
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Ccontrarian replied to the thread Mars is covered in evidence of ancient lakes, rain and snow — but scientists aren't sure how that's possible.The deuterium/hydrogen ratio on Mars is much higher than on Earth. This suggests a loss of large amounts of hydrogen vs. deuterium from...
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Ccontrarian replied to the thread Are we alone? Intelligent aliens may be rare, new study suggests."Why" suggests a reason for something. Many scientists will tell you there is no reason for anything. Reasons, in the purest sense, is...
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Ccontrarian reacted to COLGeek's post in the thread Are we alone? Intelligent aliens may be rare, new study suggests with Like.
I'd like to simply restate a couple things for the sake of brevity. 1. I've seen no threads/posts where any on the members who posted...
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Ccontrarian replied to the thread Are we alone? Intelligent aliens may be rare, new study suggests.While it is almost certain that life exists on many planets throughout the universe, the presence of "intelligent" life is another...
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