Because Hubble is not designed to point at the sun. Thermally, Hubble was designed so that one side of the telescope is always pointed towards the sun. For thermally stability it must always remain that way. Are you going to personally replace Hubble's primary mirror when it cracks due to solar heating?
No, it doesn't follow because the advances don't apply to spaced-based observatories. The images are sharper because of 1) adaptive optics 2) the observatory has a larger mirror(s). The only way a space-based observatory is going to get better images is a larger mirror. And, as you pointed out, there's no need for adaptive optics in space.
The filaments' newly revealed dark cores are seen to be thousands of kilometers long but only about 100 kilometers wide. Resolving features 100 kilometers wide or less is a milestone in solar astronomy and has been achieved here using sophisticated adaptive optics, digital image stacking, and processing techniques to counter the blurring effect of Earth's atmosphere. At optical wavelengths, these images are sharper than even current space-based solar observatories can produce.
Dimensions: The length of the spacecraft is 9 m and, with the high-gain antenna (HGA) deployed, is 4.6 m in diameter.
Ha! That's great! Except that the high-gain antenna failed to deploy. Fortunately, with some spacecraft reprogramming, Galileo will still acheive about 70% of its original science goals using the low-gain antenna.
I have mod points, but since I work on SOHO and someone modded the parent "Informative", I have to straighten things out:)
GiliadGreene has made some good points already about SOHO being in a halo orbit around the L1, not at the actual L1 "point".
Orbit corrections are performed every 17 weeks (four months, not one).
The halo orbit is much saner than trying to stay at the L1 point, and it attenuates solar interference. Ironically, the COMSAT link that DSN uses to get data from Madrid to California gets more solar interference than the spacecraft to ground link.
I don't mind a little distortion; I'd rather have the same volume. I have a Mac at work, where the ambient sound level is pretty high due to the poorly designed HVAC system and multitude of computers. I have to keep the volume on the computer low enough to avoid disturbing coworkers, but loud enough to hear over the noise. With no compression, I can't hear the quiet parts of songs without turning up the volume. During the "normal" parts it is then too loud.
When iTunes 3 came out, I was thrilled that I wouldn't have to manually adjust the volume for every single song I own. Finally, audio volume compression just like "RockSteady" for Winamp!
Alas, it was not to be. Sound Check is not true compression; it works by determining the maximum volume of the track, then adjusting the volume of the whole track by one value. So you are SOL if the song is partly quiet and partly loud.
Not only that, but the mowed grass actually emits hydrocarbons -- the same amount a gas mower does.
For example, a team of U.S. and European scientists recently found that mowed grass emits hydrocarbons at a level of 20 to 60 parts per billion--which is comparable to the level released by the gasoline-powered mowers cutting the grass. In an article published this year in Environmental Science & Technology, the team reported: "The results of these experiments suggest that common lawn mowing releases substantial amounts of reactive VOCs and should be considered in urban air-quality control strategies."
The sharing page doesn't say anything about restricting access to your shared calendar to specific people. Does that mean anyone can look at your published calendar (assuming you are using.mac to publish)?
I can see it now -- your published vacation to Bermuda is an invite into your home to lowlifes.
This is the dumbest comment I've ever read. Did you think a company keeps it's software private among its own people as well?
NASA is not a company, it is a government agency. Software products developed by a contractor are called "GOTS" or "Government-Off-The-Shelf". Any government agency, (or in this case, NASA spacecraft/mission) can use the software.
I know what the little dimples on golf balls are for. They make it fly further by reducing turbulance behind the ball.
No, actually, the dimples increase the turbulence. This is good thing because it means turbulent airflow remains attached to the surface longer. With a smooth ball, the flow lends to remain laminar (smooth), but it detaches from the surface of ball. A detached flow creates more drag than turbulent flow would.
Some airplane wings have vortex generators on the upper surface to cause turbulent flow, reducing the likelihood of a flow detachment.
How hard would it be to compare your credit card info (which is supposedly much harder to fake) to your store card info, note that its different, and "fix" the store card info?
The real problem with software is that frequently bugs can come up when there are weird combinations of hardware and software that cause software to enter into states that the manufactorer never expected. By that rationale, companies like Apple should have no problem providing a warranty for the OS. After all, they design (or pick) the hardware that goes into every computer. Apple has been touting this as an advantage for years.
You probably want to use Applescript for this. Check out this page for a buttload of iTunes applescripts. For example the "Get CDDB Track Names" script will tag the selected tracks in iTunes with info from a CDDB webpage (that you searched for). And you can use the built-in applescripts to search the CDDB.
But honestly, with only 2000 songs, it would probably be less work to do it yourself, especially if you can use iTunes multiple-edit mode on tracks from the same album.
First thing I thought about when I saw Sherlock 3 was Watson. Even Apple's Phil Schiller said how cool it was. I guess Apple thought it was so cool they would practically copy it! Watson provides many more services than Sherlock 3, but it also costs $30.
I'm surprised that no one mentioned sneakemail. I've been using it for almost a year now, and I've gotten only two spam messages, at addresses I used posting to usenet. I simply deleted those email addresses; no more spam.
Didn't slashdot have a story a while back about a study on how to get on SPAM mailing lists? I believe they found that posting on usenet was the worst.
Sneakemail is still free, but they are now asking for donations.
which, according to this article, will be ideally suited to searching the "blind spot" between the Sun and Earth for asteroids. This picture, and this animation, show the area of the sky Gaia could cover. (shameless plug: That's a SOHO/EIT picture in the center of the image)
Unfortunately, Gaia is not scheduled to launch until 2010. Until then, I wonder if a spacecraft like SOHO, (particularly the LASCO instrument) could look for asteroids? I've asked one of the project scientists (via email) about it. I'll post again if I find out anything good.
In the meantime, maybe one of YOU would like to search back in the archive of LASCO images and find the asteroid? You'll be famous if you find it!
Slashdot Mirror
Because Hubble is not designed to point at the sun. Thermally, Hubble was designed so that one side of the telescope is always pointed towards the sun. For thermally stability it must always remain that way. Are you going to personally replace Hubble's primary mirror when it cracks due to solar heating?
No, it doesn't follow because the advances don't apply to spaced-based observatories. The images are sharper because of 1) adaptive optics 2) the observatory has a larger mirror(s). The only way a space-based observatory is going to get better images is a larger mirror. And, as you pointed out, there's no need for adaptive optics in space.
Here's a JPEG.
The filaments' newly revealed dark cores are seen to be thousands of kilometers long but only about 100 kilometers wide. Resolving features 100 kilometers wide or less is a milestone in solar astronomy and has been achieved here using sophisticated adaptive optics, digital image stacking, and processing techniques to counter the blurring effect of Earth's atmosphere. At optical wavelengths, these images are sharper than even current space-based solar observatories can produce.
Now SOHO might get some more time on the Deep Space Network (DSN).
say "Front toward enemy" on them. The picture is vietnam-era; they might say "This side toward enemy" now.
Dimensions: The length of the spacecraft is 9 m and, with the high-gain antenna (HGA) deployed, is 4.6 m in diameter.
Ha! That's great! Except that the high-gain antenna failed to deploy. Fortunately, with some spacecraft reprogramming, Galileo will still acheive about 70% of its original science goals using the low-gain antenna.
GiliadGreene has made some good points already about SOHO being in a halo orbit around the L1, not at the actual L1 "point".
Orbit corrections are performed every 17 weeks (four months, not one).
The halo orbit is much saner than trying to stay at the L1 point, and it attenuates solar interference. Ironically, the COMSAT link that DSN uses to get data from Madrid to California gets more solar interference than the spacecraft to ground link.
Should've used "P"eepers instead of eyeballs...
Would I be complaining if I liked it? :)
I don't mind a little distortion; I'd rather have the same volume. I have a Mac at work, where the ambient sound level is pretty high due to the poorly designed HVAC system and multitude of computers. I have to keep the volume on the computer low enough to avoid disturbing coworkers, but loud enough to hear over the noise. With no compression, I can't hear the quiet parts of songs without turning up the volume. During the "normal" parts it is then too loud.
Alas, it was not to be. Sound Check is not true compression; it works by determining the maximum volume of the track, then adjusting the volume of the whole track by one value. So you are SOL if the song is partly quiet and partly loud.
When will iTunes/iPod have real compression?
AFAICT, serious image manipulation/analyzation is done with IDL. Check out The IDL Astronomy User's Library.
He was out there for 3.5 months and he didn't get scurvy?
I have to agree with you there. I use a sneakemail address for monster, and I have never received any spam at that address.
For example, a team of U.S. and European scientists recently found that mowed grass emits hydrocarbons at a level of 20 to 60 parts per billion--which is comparable to the level released by the gasoline-powered mowers cutting the grass. In an article published this year in Environmental Science & Technology, the team reported: "The results of these experiments suggest that common lawn mowing releases substantial amounts of reactive VOCs and should be considered in urban air-quality control strategies."
I can see it now -- your published vacation to Bermuda is an invite into your home to lowlifes.
This is the dumbest comment I've ever read. Did you think a company keeps it's software private among its own people as well?
NASA is not a company, it is a government agency. Software products developed by a contractor are called "GOTS" or "Government-Off-The-Shelf". Any government agency, (or in this case, NASA spacecraft/mission) can use the software.
I know what the little dimples on golf balls are for. They make it fly further by reducing turbulance behind the ball.
No, actually, the dimples increase the turbulence. This is good thing because it means turbulent airflow remains attached to the surface longer. With a smooth ball, the flow lends to remain laminar (smooth), but it detaches from the surface of ball. A detached flow creates more drag than turbulent flow would.
Some airplane wings have vortex generators on the upper surface to cause turbulent flow, reducing the likelihood of a flow detachment.
A more techinal explanation is available here.
How hard would it be to compare your credit card info (which is supposedly much harder to fake) to your store card info, note that its different, and "fix" the store card info?
Can store get your address from your credit card?
The real problem with software is that frequently bugs can come up when there are weird combinations of hardware and software that cause software to enter into states that the manufactorer never expected.
By that rationale, companies like Apple should have no problem providing a warranty for the OS. After all, they design (or pick) the hardware that goes into every computer. Apple has been touting this as an advantage for years.
You probably want to use Applescript for this. Check out this page for a buttload of iTunes applescripts. For example the "Get CDDB Track Names" script will tag the selected tracks in iTunes with info from a CDDB webpage (that you searched for). And you can use the built-in applescripts to search the CDDB.
But honestly, with only 2000 songs, it would probably be less work to do it yourself, especially if you can use iTunes multiple-edit mode on tracks from the same album.
First thing I thought about when I saw Sherlock 3 was Watson. Even Apple's Phil Schiller said how cool it was. I guess Apple thought it was so cool they would practically copy it!
Watson provides many more services than Sherlock 3, but it also costs $30.
Please point me to a webpage which states that you can use your coupons. The upgrade page makes no mention of them.
I'm surprised that no one mentioned sneakemail. I've been using it for almost a year now, and I've gotten only two spam messages, at addresses I used posting to usenet. I simply deleted those email addresses; no more spam.
Didn't slashdot have a story a while back about a study on how to get on SPAM mailing lists? I believe they found that posting on usenet was the worst.
Sneakemail is still free, but they are now asking for donations.
Unfortunately, Gaia is not scheduled to launch until 2010. Until then, I wonder if a spacecraft like SOHO, (particularly the LASCO instrument) could look for asteroids? I've asked one of the project scientists (via email) about it. I'll post again if I find out anything good.
In the meantime, maybe one of YOU would like to search back in the archive of LASCO images and find the asteroid? You'll be famous if you find it!