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Algorithmic Passwords

Everyone hates passwords. It's hard for people to come up with passwords that they can remember and which match the inconsistent standards set by websites. The result is that they figure out one password that generally fits the standards and then use that everywhere they can. Password expiration policies that prevent users from reusing passwords actually make the problem worse, since they encourage users to use simpler passwords than they would otherwise.

Hubble Ultra Deep Field 3-D Fly-Through

This is a pretty incredible simulation and it's the best thing I've seen all day.

A flight through the Hubble Ultra Deep Field, the most distant visible-light view of the universe. The redshifts of 5,333 galaxies were converted to distances to assemble a 3-D model of the data. This scientific visualization flies through the data to showcase its true 3-D nature.