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Fraser
2008-May-07, 12:40 PM
During the STS-123 mission to the International Space Station in March 2008 Japanese astronaut Takeo Doi tested a special boomerang in space to see how it worked in the microgravity environment of the ISS. The boomerang used in the experiment was a specially “Roomerang,” a small, tri-blade boomerang intended for use indoors in a [...]

More... (http://www.universetoday.com/2008/05/07/jaxa-releases-boomerang-experiment-video/)

Jeff Root
2008-May-07, 02:10 PM
The end of the article says:


Submillimeter radio measurements made in 1995 show the deep interior of
the nebula to have a temperature of only one degree Kelvin above absolute
zero, with absolute zero equal to nearly -460 degrees Fahrenheit. This makes
the inner regions of the Boomerang Nebula one of the coldest known places
in the universe.
If it is so cold, why is it so bright? (Or the other way around -- if it is so
bright, why is it so cold?) I understand that the light we see is reflected,
not emitted by hot material, but I would think that if there is so much light
hitting the dust that it looks bright, the dust would be warmed above the
general temperature of dust in space.

-- Jeff, in Minneapolis

01101001
2008-May-07, 02:42 PM
I understand that the light we see is reflected,
not emitted by hot material, but I would think that if there is so much light
hitting the dust that it looks bright, the dust would be warmed above the
general temperature of dust in space.

The end of the article, I read, about indoor boomerangs used aboard the ISS, says:


But Broadbent also said that a boomerang would not work in the vacuum of space. “You need air molecules to generate the lift to make the boomerang turn,” he said.

Here's our earlier article about the boomerang experiment.

Did you chase one of the related links, Hubble's View of the Boomerang Nebula (http://www.universetoday.com/2005/09/13/hubbles-view-of-the-boomerang-nebula/)?

Jeff Root
2008-May-07, 03:27 PM
Ooooops! Yes, indeedy-doody, I followed a suggested link and forgot that
it wasn't the current topic. I even thought about the fact that "boomerang"
was in both titles, but that didn't prevent me from noticing my mistake.

Should my post be moved to a different thread?

-- Jeff, in Minneapolis