3 posts tagged with ladder.
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no stairway?

Q: How many miles is it to the crab nebula? How does one even figure this out? A: The cosmic distance ladder! Here's a talk by Fields medalist Terrence Tao on methods for indirect calculation of distances to astronomical objects. Here's Tao's blog post on the subject, including the slides for the talk. And here's a Wikipedia page. [more inside]
posted by kaibutsu on Oct 22, 2012 - 17 comments

Cats and Ladders!

Metafilter has previously seen Cat Ladders, a picture gallery and tribute to cat ladders around the world - approximately 967 of them, in 22 countries including Turkey, the Netherlands, Brazil, and various United States. But have we watched them? (via.) [more inside]
posted by ChuraChura on Aug 27, 2011 - 15 comments

Give me a wooden ladder is not a euphamism

The San Francisco Fire Department has a ladder making shop (SLYT)
posted by zerobyproxy on Sep 30, 2010 - 19 comments

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