If you're using the "firehouse" bulb as your definition of "robust" then many incandescents made in the last 50 years would meet that standard. Lifetime is approximately proportional to light output ^ -4. The firehouse bulb is a 4 Watt bulb. So if you took a 'normal' 40W bulb, and reduced the voltage to make it run at 4W, you'd end up with 10000x the 'normal' life of a 40W bulb (i.e. millions of hours).
Then you are not worried about helium leaking. You're worried about oxygen and nitrogen leaking in. Thankfully those are all WAY easier to stop then helium, and a properly designed device shouldn't have trouble.
If I start with the drive full of helium, and then some leaks out shouldn't the density of the gas in the drive then be lower? And if less dense gas reduces strain shouldn't the lifetime of the drive then increase?
"This results in cars that meet emissions standards in the laboratory or testing station, but during normal operation, emit nitrogen oxides, or NOx, at up to 40 times the standard."
I did notice one part of the summary where they converted 100 km to 62 miles, and another where they noted that different groups define the edge of space differently, with some using 100 km as the boundary and others using 50 miles. However, at no point did I note someone trying to equate 100 km to 50 miles. Can you point it out for me?
Both of those options are stupid. If someone sends a text to your phone number, and that number is associated with an iMessage account then it should try to send the message via iMessage, and when it doesn't get delivered to your phone - regardless of if it gets delivered to any other devices - it should send a text to the phone number.
Sapphire is hard... 9 on the Mohs scale, and the only substance harder is natural and synthetic diamond.
Lots of things are harder then Sapphire, particularly carbides and borides. Examples include silicon carbide, titanium carbide, boron (the hardest element) boron carbide, and boron nitride.
I find it difficult to believe... so...do you have any references that says Gorilla Glass is cheaper and harder than Sapphire?
No one ever said it was harder, they said it was stronger.
Ideal follows a very consistent color scheme. Grey outside, yellow instrument face. Fluke also follows a very consistent color scheme. Yellow outside, grey instrument face. The only exceptions appear to be instruments designed for very specific environments where you want to be damn sure your meter isn't going to cause an explosion, which appear to be red on the outside.
If you showed me 50 meters from those two companies I'd have no trouble telling which belongs to each based on the coloring scheme.
All you seem to have shown is how exact a copy the sparkfun meters had to be to run into trouoble, because something as trivial as inverting the color scheme is enough to avoid it.
So I give up. What was the point you were trying to make?
Just say the Coulomb is 6.24150965e×10^18 * (the charge on an electron), and the amp is 1 C/s. The resulting 25ppb uncertainty in the definition of the Coulomb is probably better then anything you'll get out of trying to realize the current standard.
The current (early 2011) uncertainty in Avogadro number is about 30 ppb. The current uncertainty in the hunk of metal is about 20 ppb. I don't think the International Committee for Weights and Measures would consider making a switch unless it is one that would reduce uncertainty.
No, but parents who are so worried about autism that they're willing to skip vaccines might be more (or less) likely to try and have their kid diagnosed with autism later in life if they start showing symptoms.
Well, time to sacrifice some karma on the truth once again. The poster child for geothermal power in the USA is Calpine at The Geysers, near Calistoga CA. Near, in fact, old faithful, which is old but not particularly faithful. It is neither as regular nor as potent as it used to be.
Old Faithful is in Wyoming, which is two states (Utah and Nevada) away from California.
I'm not a hardware guy so I don't use HP scopes (do they even still make bench equipment?)
HP's spun off their scientific instruments, electronic test equipment, and a number of things, into Agilent Technologies about 20 years ago. Agilent still makes bench equipment, to the point that I have some pieces of HP/Agilent equipment that are identical except for the corporate logo on them (including having the same model number).
Slashdot Mirror
If you're using the "firehouse" bulb as your definition of "robust" then many incandescents made in the last 50 years would meet that standard.
Lifetime is approximately proportional to light output ^ -4.
The firehouse bulb is a 4 Watt bulb.
So if you took a 'normal' 40W bulb, and reduced the voltage to make it run at 4W, you'd end up with 10000x the 'normal' life of a 40W bulb (i.e. millions of hours).
>Sure, you just have to update the configuration of all GPS devices on earth...
If only they were capable of receiving signals from some sort of satellite.
Then you are not worried about helium leaking. You're worried about oxygen and nitrogen leaking in. Thankfully those are all WAY easier to stop then helium, and a properly designed device shouldn't have trouble.
Why lower lifetime?
If I start with the drive full of helium, and then some leaks out shouldn't the density of the gas in the drive then be lower? And if less dense gas reduces strain shouldn't the lifetime of the drive then increase?
Incorrect.
Placebos have no active ingredient. They can have an effect, it even has a name, it's called the "placebo effect".
Who exactly is "They"?
The original EPA press release specifies NOx emissions.
"This results in cars that meet emissions standards in the laboratory or testing station, but during normal operation, emit nitrogen oxides, or NOx, at up to 40 times the standard."
Because if you called it transparent alumina, people would accuse you of ripping off Star Trek.
No I didn't.
I did notice one part of the summary where they converted 100 km to 62 miles, and another where they noted that different groups define the edge of space differently, with some using 100 km as the boundary and others using 50 miles. However, at no point did I note someone trying to equate 100 km to 50 miles. Can you point it out for me?
EZ Pass has a battery.
https://www.ezpassva.com/Stati...
Both of those options are stupid. If someone sends a text to your phone number, and that number is associated with an iMessage account then it should try to send the message via iMessage, and when it doesn't get delivered to your phone - regardless of if it gets delivered to any other devices - it should send a text to the phone number.
Sapphire is hard... 9 on the Mohs scale, and the only substance harder is natural and synthetic diamond.
Lots of things are harder then Sapphire, particularly carbides and borides. Examples include silicon carbide, titanium carbide, boron (the hardest element) boron carbide, and boron nitride.
I find it difficult to believe... so...do you have any references that says Gorilla Glass is cheaper and harder than Sapphire?
No one ever said it was harder, they said it was stronger.
I don't know about "safe" but the original design for the Hyatt Regency walkway would not have been up to KC's building code.
source
Nobody seems to be asking what the definition of "50% of the time" is ?
Over what interval/time frame?
If the opponent throws scissors or paper on his first move is he then required to throw rock on his second move?
Probably because they read the link which describes how "50% of the time" is determined.
Ideal follows a very consistent color scheme. Grey outside, yellow instrument face.
Fluke also follows a very consistent color scheme. Yellow outside, grey instrument face. The only exceptions appear to be instruments designed for very specific environments where you want to be damn sure your meter isn't going to cause an explosion, which appear to be red on the outside.
If you showed me 50 meters from those two companies I'd have no trouble telling which belongs to each based on the coloring scheme.
All you seem to have shown is how exact a copy the sparkfun meters had to be to run into trouoble, because something as trivial as inverting the color scheme is enough to avoid it.
So I give up. What was the point you were trying to make?
With all the laws we have now the idea of a "law abiding citizen" is a fantasy. Everyone has broken some law.
Adoption includes the state in the process of granting and terminating parental rights. So it isn't an agreement between "two persons".
Just say the Coulomb is 6.24150965e×10^18 * (the charge on an electron), and the amp is 1 C/s. The resulting 25ppb uncertainty in the definition of the Coulomb is probably better then anything you'll get out of trying to realize the current standard.
The current (early 2011) uncertainty in Avogadro number is about 30 ppb. The current uncertainty in the hunk of metal is about 20 ppb. I don't think the International Committee for Weights and Measures would consider making a switch unless it is one that would reduce uncertainty.
An assistant professor is usually non-tenured but is on the tenure track. Generally it means you have like 5 or fewer years of experience in the job.
The Maquis were wiped out in the 2nd half of season 5 of DS9. It started in "By Inferno's Light" and had been completed by "Blaze of Glory".
Do you have a source for that? My understanding is that he was a research associate at Harvard.
No, but parents who are so worried about autism that they're willing to skip vaccines might be more (or less) likely to try and have their kid diagnosed with autism later in life if they start showing symptoms.
$0.42 per play is not a bad price when you consider that many (most?) popular songs are available for purchase for $0.99.
$0.42 per play is also 100x what the artist is getting paid. They are getting 0.42 cents ($0.0042) a play.
Well, time to sacrifice some karma on the truth once again. The poster child for geothermal power in the USA is Calpine at The Geysers, near Calistoga CA. Near, in fact, old faithful, which is old but not particularly faithful. It is neither as regular nor as potent as it used to be.
Old Faithful is in Wyoming, which is two states (Utah and Nevada) away from California.
I'm not a hardware guy so I don't use HP scopes (do they even still make bench equipment?)
HP's spun off their scientific instruments, electronic test equipment, and a number of things, into Agilent Technologies about 20 years ago. Agilent still makes bench equipment, to the point that I have some pieces of HP/Agilent equipment that are identical except for the corporate logo on them (including having the same model number).