Women’s History Month

Henrietta Swan Leavitt worked as a human “computer” at Harvard College Observatory, studying thousands of images of stars to determine their brightness. Her interest led her to discover a certain type of star whose absolute brightness could be determined. A simple mathematical formula relating apparent brightness to absolute brightness can be used to compute theContinue reading “Women’s History Month”

Princess Louisa Inlet

Chatterbox Falls is located at the end of a timeless fjord known as Princess Louisa Inlet in British Columbia. Its waters cascade from steep cliffs to make a final 80 foot plunge into seawater just beyond the docks in this photo. The entrance to the inlet is guarded by insanely dizzying tidal rapids that yieldContinue reading “Princess Louisa Inlet”