A prize-winning popular science writer uses mathematical modeling to explain the cosmos. In Calculating the Cosmos, Ian Stewart presents an exhilarating guide to the cosmos, from our solar system to the entire universe.
When Little Bill is invited to a Halloween party, he has to come up with his own costume, and young readers can join Little Bill in his quest to find the perfect costume by lifting the flaps.
From always being curious to standing up for what you believe in, this mini guide to changing the world - one small step at a time - contains empowering and engaging ways for little ones to make a big difference.
Together, in this book, the two men debunk many of the myths that have developed around Star Trek in the last thirty years as they create new ones based on facts.
... NASA rocket scientists: Mark Rober and Wanda Harding. Here are their stories. Mark began his career at NASA, where he worked on the design of the Curiosity rover that went to Mars. On the side, he tinkered with a Halloween costume that ...