(Roughly) Daily

“It’s not the size of the dog in the fight, it’s the size of the fight in the dog…”*

 

Brian and Peter, the keepers of Plurib.us, have gifted us with perspective:  Explore our solar system and its environs– planets, dwarf planets, and moons– comparing each celestial body’s size as it might appear from earth, as it is in “true” scale (as above)… and as it routinely appears n a child’s play set…

Check it out at Planet Resizer.

* Mark Twain

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As we boldly go, we might recall that it was on this date in 1947, after 11 years of grinding and polishing, that what had begun as 20 tons of molten glass finally became a 200-inch diameter telescope lens for Cal Tech’s Mount Palomar Observatory.  It was mounted in the Hale Telescope (named in honor of the late Dr. George E. Hale who had initiated the project).and was first used on February 1, 1949 to capture pictures of the Milky Way.

 source

 

Written by LW

October 3, 2013 at 1:01 am

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