No, they don't extrapolate how much dark matter is in the universe. They say, if dark matter is of the 'WIMP' variety, we know that the mass and cross section (aka how easily they interact with other particles, namely the germainium nuclei in their detectors) of of these WIMPS is not in a certain range.
For much more info, head to the CDMS homepage, which includes links to preprints of the mentioned Phys. Rev. Letters article (note, the paper hasn't been published yet), as well as other (published and unpublished) papers, as well as general info.
How can you keep the spacecraft at room temperature if everything around it is at least 212F? I need to get some of those fans for my computer.
It would be amazing if it was true that everything around the spacecraft was at 100C. But the side which doesn't face the sun A) doesn't need the sun shields, and B) sees the cold vacuum of space, a great place to passivly radiate unwanted heat to.
Check out this page from the MESSENGER site showing the sun shields only on the side facing the sun.
No, it has nothing to do with weight or center of gravity due to the bread. You can repeat the experiment by marking one side of the bread with a magic marker.
The reason bread usually lands butter side down has to do with how it falls off a counter. People don't drop bread, it slides off the counter (or plate, or what have you) and people usually have their bread butter side up on the countertop. As it slides off, it rotates, as half of the slice doesn't have a countertop holding it up. Given standard countertop heights and standard bread thickness, the bread has time to rotate 1/2 turn before it hits the ground. Raise or lower the countertop (below about 1' it won't even make 1/2 rotation or above about 10' it'll do a whole rotation) or get thiner or thicker bread (really thin bread, like extra thin rye, or super thick bread, like about a whole loaf).
pH is a logarithmic measure. Saying "A pH of near zero" is like saying "a near infinite number of people" i.e. nonsense.
Not quite. PH is logarithmic, meaning that something with a pH of 4 is 10 times more acidic than pH 5. However, the scale is shifted (unlike the standard logarithm, like the log button on your calculator). Google pH, and you'll find many websites which explain the pH scale, like this website.
With his laser vision and an ideal vanity mirror that he apparently got from physics class along side the massless rope and frictionless pully.
Trust me, you want your frictionless pully to be massless as well. Nobody wants to integrate to solve for I (moment of inertia) when they are studying about linear energy and momenta.
One thing that requires very close to atmospheric pressure is hard drives. The heads float above the platter utilizing the bernouli principle. If the pressure too high, the heads get pulled down onto the platter (bad). If the pressure is too low, the heads don't get sucked down close enough, and data can't be read or written with any reliability.
For reference, look at the environmental specifications of any hard drive to see what pressures (often expressed in altitude above sea level) can operate under.
I work on a balloon based scientific experiment (specifically BLAST ) where the atmosphere is about 1/100th the pressure down here (altitude about 125,000 feet above sea level). We fly several computers onboard, and many are in pressure vessels soley to keep the hard drives happy. (We use some flash drives, but when our flights can easily be 2 weeks long and we produce about 11.5 Gbytes/day of binary data, we need a decent amount of storage).
Anyone else notice the goatse.cx image in the FAQ. Either the FAQ shouldn't be editable (like other documents), or why some people (aka slashdot trolls) shouldn't be allowed to contribute.
They said they'll send a spacecraft to the Moon by 2008, not man.
They need to get large objects into space before they can put people in them. This is a great way to motivate themselves. Set a strong goal. And it's not like the spacecraft even needs to land on the moon safely. The first American and Russian Moon probes certainly didn't have soft landings. They were squished to a heap of garbage upon impact.
the buttons not layed out in the traditional, muscle memory configuration
I seem to be in the minority here, but I really like the phone. Yes, the buttons are layed out in a "weird" retro-rotary phone fashion, but I've had the phone for 3 days now, and it's not nearly as hard to learn as I thought it would be. My biggest complaint with the keypad is the 4-way scroll key. It's a little too small and sensitive for my fat thumb.
There's no real new info in the Sydney Morning Herald article.
Tomorrow (Tuesday) NASA will hold a press release and Q&A session at 2pm eastern. Check out the MAP page, or tune in to NASA TV (Real Player) to see the briefing and Q&A session live (2pm eastern Tuesday).
Examples include being a Canadian Citizen (like I, who lives in the US), living in Canada, owning a Canadian Trademark (even if you are American and live in Zimbabwe), or being Her Magesty the Queen!
Slashdot Mirror
No, they don't extrapolate how much dark matter is in the universe. They say, if dark matter is of the 'WIMP' variety, we know that the mass and cross section (aka how easily they interact with other particles, namely the germainium nuclei in their detectors) of of these WIMPS is not in a certain range.
For much more info, head to the CDMS homepage, which includes links to preprints of the mentioned Phys. Rev. Letters article (note, the paper hasn't been published yet), as well as other (published and unpublished) papers, as well as general info.
s/Wharf/Worf
How can you keep the spacecraft at room temperature if everything around it is at least 212F? I need to get some of those fans for my computer.
It would be amazing if it was true that everything around the spacecraft was at 100C. But the side which doesn't face the sun A) doesn't need the sun shields, and B) sees the cold vacuum of space, a great place to passivly radiate unwanted heat to.
Check out this page from the MESSENGER site showing the sun shields only on the side facing the sun.
No, it has nothing to do with weight or center of gravity due to the bread. You can repeat the experiment by marking one side of the bread with a magic marker.
The reason bread usually lands butter side down has to do with how it falls off a counter. People don't drop bread, it slides off the counter (or plate, or what have you) and people usually have their bread butter side up on the countertop. As it slides off, it rotates, as half of the slice doesn't have a countertop holding it up. Given standard countertop heights and standard bread thickness, the bread has time to rotate 1/2 turn before it hits the ground. Raise or lower the countertop (below about 1' it won't even make 1/2 rotation or above about 10' it'll do a whole rotation) or get thiner or thicker bread (really thin bread, like extra thin rye, or super thick bread, like about a whole loaf).
Whereas your argument is still correct, the statistician in the article didn't talk about "superhuman strength" but "superhuman precision."
You're right. Slashdot often borders on masking editorials as articles, but this is just plain ridiculous.
pH is a logarithmic measure. Saying "A pH of near zero" is like saying "a near infinite number of people" i.e. nonsense.
Not quite. PH is logarithmic, meaning that something with a pH of 4 is 10 times more acidic than pH 5. However, the scale is shifted (unlike the standard logarithm, like the log button on your calculator). Google pH, and you'll find many websites which explain the pH scale, like this website.
With his laser vision and an ideal vanity mirror that he apparently got from physics class along side the massless rope and frictionless pully.
Trust me, you want your frictionless pully to be massless as well. Nobody wants to integrate to solve for I (moment of inertia) when they are studying about linear energy and momenta.
you have pissed us off too many times.
Prepare to be slashdotted.
One thing that requires very close to atmospheric pressure is hard drives. The heads float above the platter utilizing the bernouli principle. If the pressure too high, the heads get pulled down onto the platter (bad). If the pressure is too low, the heads don't get sucked down close enough, and data can't be read or written with any reliability.
For reference, look at the environmental specifications of any hard drive to see what pressures (often expressed in altitude above sea level) can operate under.
I work on a balloon based scientific experiment (specifically BLAST ) where the atmosphere is about 1/100th the pressure down here (altitude about 125,000 feet above sea level). We fly several computers onboard, and many are in pressure vessels soley to keep the hard drives happy. (We use some flash drives, but when our flights can easily be 2 weeks long and we produce about 11.5 Gbytes/day of binary data, we need a decent amount of storage).
Should it now read:
Slashdot
News for Everyone, Stuff that matters.
Anyone else notice the goatse.cx image in the FAQ. Either the FAQ shouldn't be editable (like other documents), or why some people (aka slashdot trolls) shouldn't be allowed to contribute.
But you can still go to the blackboxvoting.com site.
...until the slashdot effect sets in!
They said they'll send a spacecraft to the Moon by 2008, not man.
They need to get large objects into space before they can put people in them. This is a great way to motivate themselves. Set a strong goal. And it's not like the spacecraft even needs to land on the moon safely. The first American and Russian Moon probes certainly didn't have soft landings. They were squished to a heap of garbage upon impact.
the buttons not layed out in the traditional, muscle memory configuration
I seem to be in the minority here, but I really like the phone. Yes, the buttons are layed out in a "weird" retro-rotary phone fashion, but I've had the phone for 3 days now, and it's not nearly as hard to learn as I thought it would be. My biggest complaint with the keypad is the 4-way scroll key. It's a little too small and sensitive for my fat thumb.
You mean quadratic, not cubic.
You're right. I guess even clicking on preview doesn't protect me from every posting mistake.
Why don't they just drop them once from a height of 54 meters? That would be the same, right?
No, silly, the relationship is obviously cubic. You should drop it from a height of 54^(1/2) metres, or about 7.4m.
Human experiments to use alcohol instead are rarely successful for very long.
Mmmmmmm, Beer.
There's no real new info in the Sydney Morning Herald article.
Tomorrow (Tuesday) NASA will hold a press release and Q&A session at 2pm eastern. Check out the MAP page, or tune in to NASA TV (Real Player) to see the briefing and Q&A session live (2pm eastern Tuesday).
Actually you're a bit wrong on that, you MUST be in Canada to register a .ca domain
.ca domain, you merely have to satisfy the Canadian Presense Requirments (english) from www.ca.
Not quite true. Although that would get you a
Examples include being a Canadian Citizen (like I, who lives in the US), living in Canada, owning a Canadian Trademark (even if you are American and live in Zimbabwe), or being Her Magesty the Queen!
The Page in question was removed by Microsoft.
Does anybody have a copy (mirror)?
Microsoft was probably "testing the waters" and realized that a fake just doesn't cut it.
Didn't you know that Dan Bernstein now works for some toy company......PlayTronics, I think.
Easy to use disc cartridge:
An easy to use optical disc cartridge protects the optical disc's recording and playback phase from dust and fingerprints.
From the Press Release:
Cartridge dimension:
Approximately 129 x 131 x 7mm
For those of you who aren't that metric savvy, that's a hair taller, a hair narrower, and a hair thinner than the standard jewel case all CDs come in.
Note:
mirrors.kernel.org is NOT the list of mirrors of the kernel, it's the list of mirrors of other sites.
For the kernel, you want www.kernel.org/mirrors/ to find your local mirror of kernel.org (which is usually www.COUNTRYCODE.kernel.org).