Detailed chart illustrating the launch, approach, and landing for the Apollo mission’s manned landing on the moon.
It used to be that if astronomers wanted to get rid of the blurring effects of the atmosphere, they had to put their telescopes in space. But a technology called adaptive optics has changed all that.
Adaptive optics systems use computers to analyze the light coming from a star, and then compensate for changes wrought by the atmosphere, using mirrors that can change their shapes up to 1,000 times per second. The result: To anyone on Earth peering through the telescope, the star looks like the single point of light it really is.
A fan redesign of the Constitution Class
so tumblr kindly sent me an email today informing me my blog is a year old. yay?
Dungeons & Dragons 30-Day Challenge
Day 13 - Favorite trap/puzzle
Entry of Tomb of Horrors
Peter Jones - The Flight Of The Horse, 1979.