Recent content by Rcarlberg

Wait, there's another iPad app I discovered a while ago that's even more comprehensive: EarthViewer. Same basic idea, just a lot more information. And thus recommended over the others.

There are a couple of iPad apps from the Howard Hughes Foundation, called "Ancient Earth: The Breakup of Pangea" and "Assembly of Pangea." The first covers 200 MYA to today, and the second 540 MYA (the Cambian Explosion) to 200 MYA. These feature interactive graphics, showing not only how the...

Women living together tend to synchronize their periods. That's due to pheromones. The moon? Doubt they reach that far....

Back in the early-'90s when I worked at Ballard Computer, we played with a new Mac computer game called "Gravitation" which allowed you to create 2-d planetary systems. You could create an 'anchor' body, like a sun or a large planet, and then make other smaller planets/moons and give them...

Well of course they had songs, like birds. Dinosaurs survived 165 million years on Earth so they had plenty of time to evolve sexual signalling. They also (a lot of them) probably had feathers and elaborate coloration, for the same reason. They weren't grey reptiles who roared, despite common...