ChrisA's latest activity
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CChrisA replied to the thread Earth's days once got 2 hours longer — and that may have triggered one of the biggest evolutionary explosions in history, study suggests.We only need to "understand gravity" to the level that Isaac Newton did to understand why the Moon is drifting away. We certainly do...
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CChrisA replied to the thread SpaceX makes Starlink Roam available throughout the US.The article says "Put it in your backpack" but does not say if the device is battery-powered or if it requires access to AC mains power...
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CChrisA replied to the thread Earth's days once got 2 hours longer — and that may have triggered one of the biggest evolutionary explosions in history, study suggests.When you see a step function, you want to know the cause. The cause of the Moon's slow drifting away is well known and why would there...
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CChrisA replied to the thread Monetizing Space.Of those only the last one would require humans in space. No. Please don't tell the humans are better then robots. The are today but...
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CChrisA replied to the thread Are we alone? Intelligent aliens may be rare, new study suggests.THere is an easier way to figure this out. It also agrees with what we observe. If we assume that Earth is not rare or unique and that...
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