Mar 2 / 1:57pm
Mar 2 / 1:56pm
Mar 2 / 8:45am
Chile quake may have tipped Earth's axis - CNN.com
(CNN) -- The massive earthquake that struck Chile on Saturday may have shifted the Earth's axis and created shorter days, scientists at NASA say.
The change is negligible, but permanent: Each day should be 1.26 microseconds shorter, according to preliminary calculations. A microsecond is one-millionth of a second.
A large quake shifts massive amounts of rock and alters the distribution of mass on the planet.
When that distribution changes, it changes the rate at which the planet rotates. And the rotation rate determines the length of a day.
"Any worldly event that involves the movement of mass affects the Earth's rotation," Benjamin Fong Chao, of NASA's Goddard Space Flight Center in Greenbelt, Maryland, said while explaining the phenomenon in 2005.
via cnn.com
Mar 2 / 8:40am
Mar 1 / 4:45pm
My faves iTunes list.
Glitter in the Air - Pink
21 Guns - Green Day
American Idiot - Green Day
A White Demon Love Song - the Killers
Supermassive Black Hole - Muse
Waking Up in Vegas - Katy Perry
This is a Song for the Longely - Cher
Breathless - The Corrs
Forever Young - Alphaville
Breathe - Abney Park
The Violet Hour - Sea Wolf
Gypsy - Shakira
Viva La Vida - ColdplayA little heavy on the anthems, I know...
21 Guns - Green Day
American Idiot - Green Day
A White Demon Love Song - the Killers
Supermassive Black Hole - Muse
Waking Up in Vegas - Katy Perry
This is a Song for the Longely - Cher
Breathless - The Corrs
Forever Young - Alphaville
Breathe - Abney Park
The Violet Hour - Sea Wolf
Gypsy - Shakira
Viva La Vida - ColdplayA little heavy on the anthems, I know...
Mar 1 / 4:42pm
Mar 1 / 3:27pm
How Twitter in the Classroom is Boosting Student Engagement
via mashable.com
I like this idea in the classroom setting. It would also work well for remote classrooms, where students and instructors are meeting via their computers.
Feb 24 / 8:44am
Feb 24 / 8:35am
Feminism and Judaism: The Fast of Esther, the Bravery of Vashti, and the Calm Before Purim | BlogHer
The three days before Esther went to speak to King Ahasuerus, she and her handmaidens fasted. Requesting an audience with her husband was tricky business, after all, her predecessor, Queen Vashti, had been executed for refusing to attend her husband's party ("attend" seems to be a child-friendly way of saying that the king wanted her to entertain his friends with an ancient, Persian-style pole dance).
via blogher.com
A very thoughtful, interesting article.
Feb 23 / 8:54am
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