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4 posts tagged with space and light. (View popular tags)
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Would an alien radio pick up a cacophony or a damp fizzle?

If an alien located on a planet 100 light years from here was to switch on a big, multi-frequency radio receiver, and record all the noises coming from outer space for the next hundred years, on all frequencies, how many soap operas, advertisements and new broadcasts would they pick up from Earth? Would a mass-market radio, similar to our Earthly equivalents, pick up anything? Over time, as the number of Earth transmissions increases exponentially, would the alien pick up a cacophony or a damp fizzle? [more inside]
posted by 0bvious on Feb 23, 2012 - 10 answers

Help me make my garden tastier

I've never had a garden before. I recently bought a house in Canberra with a small established garden, mainly native Australian plants. It has a drip watering system. There isn't a lot of room, but there are a few things I have always wanted to grow, and I've got no idea whether it is possible to fit them in somehow, or where I should put them. I know I can't do anything until just before spring, but I want to start planning now. [more inside]
posted by lollusc on Jun 13, 2011 - 9 answers

Robert Irwin installation locations

I'm traveling to southern California soon and am wondering where I can see some work of artist Robert Irwin. [more inside]
posted by victory_laser on Jun 7, 2011 - 2 answers

A coronal mass ejection question.

What are the odds that I'll see the northern lights? [more inside]
posted by cirrostratus on Aug 3, 2010 - 6 answers

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