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dauswq Publish time 17-5-2011 12:40 PM

Bentuk sebenar Medan Magnet Bumi

A matter of gravity   
        Map of planetary field is sharpest ever

http://www.sciencenews.org/view/download/id/72204/thumbnail/x_large/name/aw_Goce-Poster_5000x5000_01_H.jpg
Yellow and red represent some of the sharp deviations from the average pull of Earth’s gravitational field, gathered in this new map by the European GOCE satellite.


Watch Video: http://vimeo.com/21942888




As seen by a supersensitive gravity-detecting satellite, Earth isn’t a pale blue dot. It’s a colorful, irregular lump. Kind of like a tuber.

“Rotating potato — I don’t like this word,” said Roland Pail, a geoscientist at the Technical University of Munich. He and other researchers unveiled the new map of the Earth’s gravity field on March 31 at a scientific workshop in Munich.

Yet a rainbow potato it is. This image represents a sort of theoretical sea level known as the “geoid” — a surface where the ocean would rest if not pushed around by internal currents, tides and the weather.

Gravity varies from place to place because of many factors, such as the presence of mountain ranges, the bulge around Earth’s equator, and the moon’s gravitational influence. The new snapshot comes from the European Space Agency’s GOCE satellite, launched in 2009 to map the geoid. GOCE dances along at the top of the atmosphere, using six special accelerometers to measure, many times a second, how the Earth’s gravity tugs on the spacecraft.

A highly accurate gravity map will allow researchers to fine-tune their understanding of ocean currents, sea level height, ice caps and other changing parts of the planet.


PLANETARY PULL from Science News on Vimeo.

Rotating potato or insight into the planet’s deepest secrets? This new map of the Earth’s gravity field, gathered by the European GOCE satellite, shows how, in regions such as Iceland and Indonesia, the planet's internal structure creates large gravitational deviations (yellow and red) from the average.

areenarena Publish time 17-5-2011 11:09 PM

macam tanah liat je{:3_99:}

winamp05 Publish time 19-5-2011 09:44 AM

kenapa skang daus suka bagi artikel inggeris ? {:3_99:}

dauswq Publish time 19-5-2011 09:52 AM

Reply 3# winamp05

tak larat nak edit google translate:lol:

areenarena Publish time 19-5-2011 09:19 PM

Replywinamp05

tak larat nak edit google translate
dauswq Post at 19-5-2011 09:52 http://mforum.cari.com.my/images/common/back.gif


    i tau sebab kalau pakai gooogle translate nanti bahase melayu nye jadi bahase indonesia...:lol:pastu nak sesuaikan dengan bahase melayu pulak

winamp05 Publish time 9-6-2011 09:43 AM

Reply 4# dauswq

xapa lah, skang pun my english dah semakin ok sikit. tak macam dolu dolu. kira boleh paham lagi la. tapi lagi best daus trasnslatekan. ehe..... :lol:

dauswq Publish time 15-6-2011 09:23 PM

i tau sebab kalau pakai gooogle translate nanti bahase melayu nye jadi bahase indonesia... ...
areenarena Post at 19-5-2011 21:19 http://eforum4.cari.com.my/images/common/back.gif

bull-eye:lol:

dauswq Publish time 15-6-2011 09:24 PM

Replydauswq

xapa lah, skang pun my english dah semakin ok sikit. tak macam dolu dolu. kira bol ...
winamp05 Post at 9-6-2011 09:43 http://eforum4.cari.com.my/images/common/back.gif

tulahh...:$
aku akn translate klu artikel tu sgt menarik + jikalau aku ade masa lapang~:C

areenarena Publish time 15-6-2011 10:37 PM

bull-eye
dauswq Post at 15-6-2011 21:23 http://forum.cari.com.my/images/common/back.gif


    sunyi tanpa abg mood{:3_99:}

sya_sugar_sugar Publish time 6-2-2012 08:52 AM

apasal aku nengok sama jah...http://www.sciencenews.org/view/download/id/72204/thumbnail/x_large/name/aw_Goce-Poster_5000x5000_01_H.jpg


http://t0.gstatic.com/images?q=tbn:ANd9GcSbKF6bfqFuMKi_9_zZdE1U0qZdehGP9XcVqM1p8ntPK1tgDfWL

AnakJantan1987 Publish time 7-2-2012 11:11 AM

berapa diameter benda ni ye?

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