Thursday, December 20, 2007
A fun thing to do with kids and adults. On Christmas Eve head over to Norad Santa Tracker and track Santa live on Christmas Eve. They even have a tie into Google Earth so you can track Santa in 3d. A very clever site that is definitely work a visit.
Posted by astrocath at 12/20/2007 11:14:00 PM
Thursday, December 13, 2007
Do you get tired carrying your child? Imagine carrying one underwater. Results of a two-year study by Shawn Noren of UC Santa Cruz show how mothers "carry" their newborn young by assisting their swimming in an "eschelon" formation. Much like how bicycle racers can draft off pack leaders, the young calf benefits from staying in their mother's slipstream. They can move faster than the could alone, say to stay with the dolphin pod, and even take a break to save energy for growing up. The study analyzed underwater video measured the speeds of mother and calf alone and together. The paper is published in Functional Ecology but has also been highlighted in The Economist and on the Quirks & Quarks CBC Podcast.