Movie: The Active Sun

Innocent Bystander · Post by **Innocent Bystander** » Mon Dec 04, 2006 4:17 am

Doesn't actually move a whole lot, does it?

Joseph E. Smith · Post by **Joseph E. Smith** » Mon Dec 04, 2006 4:33 am

Perhaps one of, if not THE coolest thing you've posted yet from NASA.

SteveShaw · Post by **SteveShaw** » Mon Dec 04, 2006 4:55 am

Innocent Bystander wrote:Doesn't actually move a whole lot, does it?

I had a bit of trouble getting it to do anything except at the very start, but a couple of refreshes and retries got it swirling nicely away until about half way through. I know not of the mechanics of these things.

SteveShaw · Post by **SteveShaw** » Mon Dec 04, 2006 4:59 am

Aargh - now I can't get it to work again. It seems to be temperamental.

Denny · Post by **Denny** » Mon Dec 04, 2006 8:47 am

Innocent Bystander wrote:Doesn't actually move a whole lot, does it?

Ah, no...I couldn't link in the movie.

djm · Post by **djm** » Mon Dec 04, 2006 9:29 am

Darn, the sound isn't working for me at all!

djm

Denny · Post by **Denny** » Mon Dec 04, 2006 9:35 am

same here

I.D.10-t · Post by **I.D.10-t** » Mon Dec 04, 2006 9:49 am

Due to the fact that sound is around 88,000* times slower than light and it takes about 8 minutes for light to reach the earth**, the sound that corresponds to this light show will not be available for another 2.7 years.

That being said, I think you will be disappointed in the sound clip. Although you would think the sound would be a deep baritone whoosh and thunderous roar, due to the atmosphere of the sun (Hydrogen 73.46 %, Helium 24.85 %) the sound is much higher in pitch (similar to the effects of hydrogen beer on the voices of karaoke singers) and quite annoying.

*Although the more solid the object the faster the speed of sound is so in a vacuum it ratio may be even bigger.
**Assumming that the Hinode satellite is a similar distance from the sun.

Joseph E. Smith · Post by **Joseph E. Smith** » Mon Dec 04, 2006 9:54 am

I.D.10-t wrote:Due to the fact that sound is around 88,000* times slower than light and it takes about 8 minutes for light to reach the earth, the sound that corresponds to this light show will not be available for another 2.7 years.

Well, it would if sound could travel through the vacuum of space.

jsluder · Post by **jsluder** » Mon Dec 04, 2006 9:58 am

Joseph E. Smith wrote:
I.D.10-t wrote:Due to the fact that sound is around 88,000* times slower than light and it takes about 8 minutes for light to reach the earth, the sound that corresponds to this light show will not be available for another 2.7 years.

Well, it would if sound could travel through the vacuum of space.

That's a dark matter to discuss in a pub.

Joseph E. Smith · Post by **Joseph E. Smith** » Mon Dec 04, 2006 10:01 am

jsluder wrote:
Joseph E. Smith wrote:
I.D.10-t wrote:Due to the fact that sound is around 88,000* times slower than light and it takes about 8 minutes for light to reach the earth, the sound that corresponds to this light show will not be available for another 2.7 years.

Well, it would if sound could travel through the vacuum of space.
That's a dark matter to discuss in a pub.

And so is Guinness.

jsluder · Post by **jsluder** » Mon Dec 04, 2006 10:04 am

Joseph E. Smith wrote:
jsluder wrote:
Joseph E. Smith wrote: Well, it would if sound could travel through the vacuum of space.
That's a dark matter to discuss in a pub.
And so is Guinness.

It's a good thing sound travels through beer, or there'd be no conversation in pubs.

djm · Post by **djm** » Mon Dec 04, 2006 12:07 pm

Eh?

(which only goes to prove that sound moves poorly through solid objects)

djm

jsluder · Post by **jsluder** » Mon Dec 04, 2006 12:10 pm

djm wrote:Eh?

You might want to translate that for those who don't speak Canadian.