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Activity for Rob Watts‭

Type On... Excerpt Status Date
Question How much electromagnetic transmission noise does Earth have to emit to be noticeable?
From time to time I'll see things talking about how thanks to all of our radio communications, we're effectively broadcasting our existence to the entire universe. However, when I did some back-of-the-envelope calculations a while ago I found something interesting - by the time a radio station's broa...
(more)
about 6 years ago
Question How to build a trap to last the ages?
While considering Ancient Light Trigger Mechanism, it occurred to me that any ancient trap mechanism is unlikely to work very long without regular maintenance. It seems far too easy for dust to clog the triggering mechanism, or for animals to burrow close enough to the hidden mechanisms to disrupt th...
(more)
over 6 years ago
Question How can I tell if an atmosphere is suitable for life as we know it?
I've seen a couple questions before (like this one and this one) that ask about the habitability of a planet, with a key part of that being if the atmosphere is survivable. It seems like we should have one question that covers all the basics of atmospheric habitability. So, what does the composition...
(more)
about 8 years ago