Periodicity
milhayser | August 20, 2013Posted to the homepage on August 11, 2013.
The Moon—like the sun, stars and Earth—is easy for a human being to take for granted. But the Earth's moon is truly exceptional, and should be appreciated for shaping the exceptional world we live on. Earth is the only planet with a single moon, and relative to the Earth, Luna is the largest moon in the solar system. The Moon thus exerts a strong, solitary influence on the planet it was torn from. Evidence suggests that the Moon was blown into orbit by a massive asteroid impact about 4.5 billion years ago, shortly before the emergence of life on…
milhayser | June 9, 2012Spring is in the air, and Clostridium tetani is in the earth. On Casaubon's Book, Sharon Astyk writes "with playing in the dirt comes minor injuries that you really don’t want to turn into anything nasty." Infection through open wounds can be fatal, as the bacterium releases a neurotoxin that causes uncontrolled muscular contractions. So if it's been ten years or more since your last vaccination, now is a good time for a booster. Meanwhile, Dr. Dolittle shares the amazing winning images of the inaugural Bio-Art competition on Life Lines. From the discharge of electric fish to the…