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Friday, April 22, 2011

Earth Day 2011

Earth Day 2011
Today we celebrate the Earth.
There's many ways to care and protect the Earth. You can find it in http://www.earthday.org/
Choose the way you can act, it's easy actions that we can do everyday. Also, this official webpage has a section for kids and schools.
I found also this cool website http://earthday2011.com/tag/earth-day-2011-date. Here you can find Earth Day trivia, Q&A, merchandising.
So, have a nice Earth Day. Everyday.

Wednesday, April 20, 2011

Massive Flare from the Sun



On February 24, 2011, the Sun blasted a titanic M class flare. One frame taken every 24 seconds by the Solar Dynamics Observatory (SDO) and this time-lapse video displays about 90 minutes of activity.

Electric cars need charging at night

More evidence suggests electric cars need night time charging
(PhysOrg.com) -- Researchers in America have shown that ozone -- a known pollutant at low levels in the earth's atmosphere, causing harmful effects on the respiratory system and sensitive plants -- can be reduced, on average, when electric vehicle charging is done at night time.

Saturday, April 16, 2011

NASA | Intro to LIDAR - 2D Version



Want to know the 3D shape of terrain on another planet? Want to study the height and density of Earth's forests? An amazing tool called LIDAR can help! Learn more in this video.

Scientists discover mechanism that could feed solar explosions

Scientists discover mechanism that could feed solar explosions
(PhysOrg.com) -- Coronal Mass Ejections (CMEs) are violent solar explosions that can propel up to 10 billion tons of the Sun’s atmosphere – at a million miles an hour – out through the corona and into space. These fast, powerful ejections can take as little as 18 hours to reach Earth and give rise to geomagnetic storms, which can disrupt radio transmissions, induce large currents in power lines and oil pipelines, seriously disrupt spacecraft and be extremely hazardous to astronauts. New instruments on advanced spacecraft have provided fresh insight into these cataclysmic phenomena, and illuminated a path toward predicting space weather.
in PhysOrg.com

Thursday, April 14, 2011

Animation about Universe's evolution


Video from space.com

Saturday, April 02, 2011

Earthquake and Tsunami


José Gonçalves' shared items