Hypothetical from Moon-orbit to Earth-orbit question. I already know about free return trajectories, but what if something went wrong and your ship (currently orbiting the moon) didn't leave lunar orbit at the point it was supposed to? What might happen? [more inside]
posted by np312
on Aug 17, 2006 -
I am looking for clear vinyl sleeves for trading cards that have the dimensions 120 mm x 70 mm (4.72" by 2.7559" inches). Ideally the sleeves would fit the cards fairly snugly.
It's an odd size, and I don't believe that any generic card sleeves will work. Thanks for any suggestions. They are for a game called "Blue Moon" by Reiner Knizia. [more inside]
posted by craniac
on May 9, 2006 -
I have come across this clothes brand logo (simplified imitation drawn from memory in Paint using a laptop mousepad)
, depicting what I believe is a star, a half moon and a spiral, in that order. [more inside]
posted by gentle
on Mar 6, 2006 -
A few years ago I read an online article that explained that the common belief that the moon appears larger at the horizon because the Earth's atmosphere acts as a magnifying lens is wrong, and that this effect is due to an optical illusion caused by moon's visual proximity to much closer objects on the horizon. However... [more inside]
posted by planetthoughtful
on Jan 31, 2006 -
Is it cosmic coincidence that the moon spins once on its axis in exactly the same time it takes to orbit the earth (hence the dark side we never see from earth) or is there some reason why this should be more likely?
posted by humuhumu
on Jan 25, 2006 -
I stepped out of the house this morning, 'bout 6am or so, and gazed into the glow of a rather stunning crescent moon, crisp and pure. Sitting atop the moon, a distance of about one moon's diameter, dead center, was a star. Was it a star? Was it a planet? Oh how it twinkled... and the combination made for a curious astronomical alignment.
posted by Witty
on Jan 25, 2006 -
Is there any truth to the idea that all the crazies come out during a full moon? [more inside]
posted by saucy
on Sep 29, 2005 -
DrunkenSciFiFilter- What would happen if a human being, dressed in only like a tee shirt and let's say some cargo shorts, was suddenly on the surface of the moon? Details!
posted by xmutex
on Sep 5, 2005 -
After a long and ridiculously heated quasi-scientific discussion last night, I absolutely must know: what would happen to life on earth if the moon suddenly disappeared? I say the results would be disastrous, but my friend doesn't think it would matter much. I'd be interested to know who is more accurate in her assessment and the specific problems associated with a moonless earth.
posted by TheGoldenOne
on May 24, 2005 -
I've enjoyed two books in what I would think would be an extremely small sub-genre of Science Fiction. Both The Moon is a Harsh Mistress
by Robert Heinlein and Millennium
by Ben Bova are about a moon colony rebelling against the Earth. I'd like to read more, can anyone suggest any others?
posted by Plutor
on Feb 7, 2005 -
What could obscure the moon temporarily at night?
The ghost thread reminded me of this weird event, and I wondered if you clever folk might be able to speculate.. [mi] [more inside]
posted by wackybrit
on Dec 31, 2004 -
A shadow can go faster than light
, but apparantly this does not break any physical laws as a shadow cannot communicate information. What happens if I tell someone that I will make a large shadow on the moon, visible from Earth, and that if the shadow does not move, then they should phone me. However, if it does move (at a speed faster than light), they shouldn't phone me. Hasn't information been transmitted?
posted by Orange Goblin
on Oct 19, 2004 -
I am interested in buying a telescope for someone who moved into a condo that has a great view of the Chicago skyline as well as an ocassional awesome view of the moon. The telescope would be used mainly for looking at other buildings as well as for viewing the surface of the moon when it is full and close. The thing is, I know absolutely nothing about telescopes. I've done some research via google and am at a loss. I also called a hobby shop but the sales person was extremely unhelpful. Could someone knowledgable about telescopes give me some advice about brand, kind, size etc.? [more inside]
posted by alicila
on Jul 16, 2004 -
Something I've never understood. It takes a giant rocket to achieve escape velocity and leave the Earth. The Apollo mission made it all the way to the moon. But in all the pictures I've ever seen, the only thing they've got on the moon is a lander
, a small capsule on legs. Where's the rocket they used to get off the moon? How did they get off the moon? I know the moon is much smaller and has almost no atmosphere, but is leaving it really as easy as firing a few booster rockets? Why is the rocket to leave the Earth so much bigger?
posted by scarabic
on May 18, 2004 -