Today we’re posting our favorite holiday gift ideas! Here’s #1 on our #TumblrGiftGuide:
Looking for the perfect gift for nature and science lovers? Check out Natural Histories: Extraordinary Rare Book Selections from the American Museum of Natural History. This book features seldom-seen illustrations from our Rare Book Collection along with essays by Museum experts. Forty amazing prints suitable for framing are included!
Find it in our online shop.
Nerdfighters unite! This week’s nerdy musician is the lovely Mr. Hank Green.
From my textbook, Giancoli’s Physics: Principles with Applications
#46: “An observer on Earth sees an alien vessel approach at a speed of 0.60c. The Enterprise comes to the rescue (Fig. 26-12), overtaking the aliens while moving directly toward Earth at a speed of 0.90c relative to Earth. What is the relative speed of one vessel relative to the other?”
