Archive for July, 2008

China to broadcast solar eclipse live on Internet

Thursday, July 31st, 2008

 

Photo illustration shows the moon entering and emerging from the earth’s shadow during a total eclipse of the moon. In ancient times, western astrologers also believed eclipses had the power to start and stop wars, solve scientific puzzles, and trigger earthquakes and floods. (AFP/File/Stan Honda)

 

BEIJING, July 28 (Xinhua) — While the best observation place in China for Friday’s solar eclipse is a small county in the far-away Xinjiang Uygur Autonomous region, most people can also see it in all its glory on their laptop.

The Chinese Academy of Sciences (CAS) will broadcast the total solar eclipse, the first in China this century, live on the Internet, the Division of Information Technical Sciences (ITS) said on Tuesday.

On Aug. 1, the total eclipse will be visible from within a narrow corridor that traverses half the Earth. The path of the moon’s umbral shadow will begin in Canada and extend across northern Greenland, the Arctic, central Russia and Mongolia before ending in northern China.

A partial eclipse will be seen within the much broader path of the moon’s partial shadow, which includes northeastern North America, most of Europe and Asia.

It will make its final stop at sunset in Xi’an, capital of Shaanxi Province.

ITS will provide live eclipse coverage in Xi’an from 6:20 p.m. to 8 p.m. on the Internet. Two astronomers will have an online discussion with netizens.

Nanjing Purple Mountain Observatory of CAS (www.pmo.jsinfo.net) and Shanghai Astronomical Observatory Online (www.astron.sh.cn/live/2008eclipse) will also broadcast the eclipse live.

In China, Yiwu County, 500 km east of Urumqi, capital of Xinjiang, will get the best view of the eclipse. It will start at about 7 p.m. (Beijing Time) and last about two minutes.

People in Hong Kong and such provinces as Shanxi and Gansu will also see a total or partial eclipse. It will not be visible in Beijing.

It is advised not to look directly at the sun with the naked eye or through a telescope. According to astronomers, it’s safe to project the sun’s image through a pinhole or a telescope onto a piece of white paper or cardboard.

A solar eclipse occurs when the moon passes between the Earth and Sun, totally or partially blocking the Earth’s view of the sun. The next total solar eclipse will occur in China in January.

Saturn’s moon Titan has liquid lake, confirms NASA

Thursday, July 31st, 2008

Two moons of the planet Saturn, the brightest body in the solar system, Enceladus, is contrasted here against Titan’s smoggy, golden murk in this photograph taken by the Cassini spacecrafts narrow angle camera February 5, 2006 and released by NASA June 21, 2006. At least one of the large lakes observed on Saturn’s moon Titan contains liquid hydrocarbons, NASA scientists have concluded. (Xinhua/Reuters file Photo)

WASHINGTON, July 30 (Xinhua) — At least one of the large lakes observed on Saturn’s moon Titan contains liquid hydrocarbons, NASA scientists have concluded. They have also positively identified the presence of ethane.

This makes Titan the only body in our solar system beyond Earth known to have liquid on its surface, NASA reported Wednesday.

Scientists made the discovery using data from an instrument aboard the Cassini spacecraft.

Earlier, scientists had thought Titan would have global oceans of methane, ethane and other light hydrocarbons.

More than 40 close flybys of Titan by Cassini showed no such global oceans existed, but revealed the presence of hundreds of dark lake-like features.

Until this new study, it was not known whether these features were liquid or simply dark, solid material.

“This is the first observation that really pins down that Titan has a surface lake filled with liquid,” said lead researcher Robert Brown of the University of Arizona’s Lunar and Planetary Laboratory.

Brown is the team leader of Cassini’s visual and mapping instrument. The results will be published in the July 31 issue of the journal Nature.

The liquid ethane was identified using a technique that removed the interference from Titan’s atmospheric hydrocarbons. The visual and mapping instrument observed a lake in Titan’s south polar region during a close Cassini flyby in December 2007. The lake is roughly 20,000 square kilometers in area, slightly larger than North America’s Lake Ontario.

“Detection of liquid ethane confirms a long-held idea that lakes and seas filled with methane and ethane exist on Titan,” said Larry Soderblom, a Cassini interdisciplinary scientist.

“The fact that we could detect the ethane spectral signatures of the lake even when it was so dimly illuminated, and at a slanted viewing path through Titan’s atmosphere, raises expectations for exciting future lake discoveries by our instrument.”

Who is Your Best Friend?

Thursday, July 31st, 2008

What is your friend lifespan?
You might ask what a friend lifespan is?
It is how long you remain in friendship with someone until you drift way from each other for whatever reason. Some people remain friends for a lifetime, but some do drift apart.

You are no longer friends with your high school friend.
You may not even remember the friend you met during your internship.
As we grow older, we move from one place to another, we change colleges, work places and we keep meeting new people replenishing those we leave behind.

So who is your best friend?
Is your best friend from high school with whom you shared your best kept secrets, still your best friend?
Or has he also drifted since you moved away from your city after your first full time job.
Perhaps your girlfriend is your best friend now.
Girls usually are good at keeping up with old friends, and they usually make friends for life, and they even share their Boyfriend’s secrets with their best friends, but for a guy, usually his drinking partners become his closest friends.

But they say that ‘Old is Gold’, and never to be sold, usually your childhood friends and high school friends are the only friends you will ever have for your lifetime. You colleagues, your drinking buddies, and club buddies will come and go, but when you are in need of help, your old friends will stand by you. Even if you call your high school best friend after 15 years of not calling, and ask for a favor he will most probably oblige. He might not even think that you are calling after 15 years, and that is for asking a favor.

He will feel so good hearing your voice that he would do anything to help you. Then, why did we forget them. Why do we forget to call him on his birthday, or his marriage anniversary. However short our friend lifespan would be for new friends, we should always try to keep in touch with our old friends.

A small gesture of remembrance, a greeting card in Christmas, a random invitation card for a ceremony , calling him on his birthday, letting him know of your promotion, of your childbirth etc will go a long way in nurturing your friendship.

And this we should do with all our new found and drifted away friends as well. Just as you drifted away from him, there must be tens of other people drifted away from him, but he will remember the one who remembers him. Who knows, he might become your best friend?

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Thursday, July 31st, 2008

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