I had assumed that the Earth, the spirit of the Earth, noticed exceptions — those who want only to damage it and those who do not. But the Earth is wise. It has given itself into the keeping of all, and all are therefore accountable.” - Alice Walker
BBC - Trailer for The Human Planet
HH: I may have posted this over a year ago. Still amazing and worth a look. We are an amazing species.
Sahara rock appears to be first meteorite from Mars’ crust
The specimen is unlike any of the 110 or so Martian meteorites found on Earth, providing a unique glimpse of the Red Planet’s surface, experts say.
A slice of the 2.1-billion-year-old Martian meteorite found in the Sahara, officially known as NWA 7034 and nicknamed “Black Beauty.” (Carl Agee / University of New Mexico / January 3, 2013)
- Meteorite From Mars is Water-Rich (universetoday.com)
By the mid 19th century, scientists had long known that the Earth rotates. Yet an uncomfortable puzzle remained. Nobody knew how to demonstrate this rotation in a simple and easy way. Then in 1851, French physicist Léon Foucault devised a way, which he demonstrated publicly by hanging a 28-kilogram bob from the dome of the Panthéon, a mausoleum in Paris. As the pendulum swings, the Earth rotates beneath it, making the plane of the swing appear to rotate. The Panthéon now houses a replica pendulum - the original fell and broke in 2010 when the wire snapped. Watching it in motion is still amazing, more than 160 years later.
(Image: Michael Weberimagebr/Superstock)
- Foucault’s Penulum, 1851 (longstreet.typepad.com)
laws of nature
photo and comment by David Kingham:
“On Thursday afternoon I drove 5 hours to meet up with Jason Hatfield and Mike Berenson in South Dakota. Our target was in Custer State Park on the Needles Highway, after driving past this rock formation called ‘The Eye of the Needle’ this past summer I knew I had to come back to photograph it at night. But it needed to be something special[…]”
- 2012 Geminid Meteor Shower (Video) (wjla.com)
- Watch the Geminid Meteor Shower Live online (wtkr.com)
- More Incredible Geminid Meteor Shower Images and Video (universetoday.com)
Earth Day every day
Solar System Codependents