Astronomers Discover A Weird “Stellar Hybrid” — A Star Within A Star
An exotic type of ‘hybrid’ star has been discovered nearly 40 years since it was first theorized, but until now has been curiously difficult to find. In 1975, renowned astrophysicists Kip Thorne, of the California Institute of Technology (Caltech) in Pasadena, Calif., and Anna Żytkow, of the University of Cambridge, UK, assembled a theory on…
How Boomerangs Work
Non-returning boomerangs have been used for at least 20,000-30,000 years, with the oldest known example carved from a mammoth’s tusk. These non-returning boomerangs were used for hunting and were carved for straight flight and to stay in the air as long as possible when thrown correctly. The hunter was then able to throw the primitive…
A Brief Cartoon History of Planet Earth
Climate change is no laughing matter—but maybe it should be. Here, you can read an excerpt Yoram Bauman and Grady Klein’s new book The Cartoon Introduction to Climate Change—an entertaining overview of climate science, predictions, and policy. The above is an excerpt from The Cartoon Introduction to Climate Change by Yoram Bauman and Grady Klein.…
