IT&C

Tu, Z.O. in persoana, ai multumit d-nei Andrea Thompson fiindca i-ai copiat cuvant cu cuvant o parte sin articol si profesorilor tai de engleza fiindca te-au invatat sa traduci?
E chiar asa de greu sa citesti niscaiva date si sa compui un articol din propria capatzana?
Sau... e mai comod sa dai copy - paste de pe ce au scris altii si sa incasezi un salariu??
Rushine, "ziaristilor" !!! Din cate se vede, moda Petre Nite-anus isi gaseste ecou, in continuare, la "Ziua" :)

Articolul original:

Andrea Thompson
Senior Writer
SPACE.com andrea Thompson
senior Writer
space.com – Wed Jan 7, 10:31 pm ET

LONG BEACH, Calif. -- Space is typically thought of as a very quiet place. But one team of astronomers has found a strange cosmic noise that booms six times louder than expected.

The roar is from the distant cosmos. Nobody knows what causes it.

Of course, sound waves can't travel in a vacuum (which is what most of space is), or at least they can't very efficiently. But radio waves can.

Radio waves are not sound waves, but they are still electromagnetic waves, situated on the low-frequency end of the light spectrum.

Many objects in the universe, including stars and quasars, emit radio waves. Even our home galaxy, the Milky Way, emits a static hiss (first detected in 1931 by physicist Karl Jansky). Other galaxies also send out a background radio hiss.

But the newly detected signal, described here today at the 213th meeting of the American Astronomical Society, is far louder than astronomers expected.

There is "something new and interesting going on in the universe," said Alan Kogut of NASA's Goddard Space Flight Center in Greenbelt, Md.

A team led by Kogut detected the signal with a balloon-borne instrument named ARCADE (Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission).

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