You're forgetting Coulomb repulsion -- fusion works at high temperatures because only then the kinetic energy of the atoms is enough to overcome the potential. There is tunneling, but at typical distances it's not significant.
2. Does creating a Google Account give me a Gmail account?
Unfortunately not. Gmail is currently in a limited release, so you need to get invited by another Gmail user in order to sign up. If you're interested in Gmail, you may want to check the About Gmail page periodically for updates. If, on the other hand, you already have a Gmail account, you can use your Gmail username and password to sign in to your Google Account.
I started watching old/foreign films a few years ago, and I agree that there's much good stuff out there. The Pacific Film Archive and San Francisco International Film Festival have done much to broaden my horizons.
However, my peers just aren't interested in seeing these movies. The main complaint is "they're boring". Also common is "what, it's not in color?!". They want action and excitement; they don't want to think. They don't want to be challenged by what they see. When they praise a movie, it's in oblique terms: funny, awesome, cool, good.
I bought an IBM 570 at the beginning of summer. P2 300, 192MB RAM. Cost me $75 off eBay for the "barebone", $75 for a 40GB hard drive, $20 for PCMCIA cards, and I've got a thin and light machine that runs Win2000 quite nicely. Of course the battery is good for about 15 minutes, and I have to transcode XVID to MJPEG, but overall I'm quite happy.
eBay's definitely riskier than a store like RetroBox, but the concept is the same.
Nice work. We've got the bloody things at Berkeley too. I had the thought of reverse engineering one and creating a lower-cost clone, but as these aren't used in upper divs I lack the incentive.
It wouldn't be too hard to get Ben & Jerry's delivered to all the dorm rooms, actually. They have a store on the west edge of campus, on Oxford street, only a few blocks away from most of the dorms.
give them an allotment per MAC address
Exactly what we have at Berkeley. If you go over the weekly limit, you get cut off.
I think the parent is referring to packet shaping, which they use at Irvine. It makes P2P incredibly slow, essentially unusable.
Though at Berkeley, there's a mention of a monitoring system somewhere on the Rescomp site. It supposedly saves all your traffic for a certain period of time. It's possible, but more likely just FUD.
Yeah, the parent probably means CDs, but Amoeba sells a lot of vinyl too. It's debatable what's "full lossless" beyond a live performance, but I'd say vinyl gets closer than CD.
"Nano" is getting redundant, because most technical fields have an interest in getting to smaller and smaller scales. Whether it's electronics or chemistry, things are going nano. It's not like you can major in nanotechnology alone and expect to handle anything in the nanoscale. Realistically, you have to choose a field of concentration.
I put an extra zero in there, so it's actually 860K. Besides, I realize now that I neglected the heat of vaporization, which is 2260 kJ/kg.
Figure that the coffee starts at 10 degrees Celcius. We need 90 degrees of change to get it 100.
90 * 4186 J/(kg*K) * 0.1 kg = 37674 J
That's 10% of our energy budget. Another 226 kJ are required to vaporize the lot, 63%. The remaining 27% of energy is 96326 J. The heat capacity of water vapor is 1.84 kJ/(kg*K).
The energy in a matter-antimatter (proton anti-proton) reaction goes toward the production of various particles that are of sufficiently high energy to pass right through your coffee: muons, gamma rays. Neutrinos too, which don't interact.
Under the unrealistic assumption that all the energy produced goes toward heating the coffee:
2ng matter + 2ng antimatter = 4e-9 g
E = m*c^2 = 4e-9 g * (3e8 m/s)^2 = 3.6e8 g*m^2/s^2
A joule is kg*m^2/s^2, so we're looking at 3.6e5 J of energy. Approximating coffee with water, water has a heat capacity of 4186 J/(kg*K), and assuming we have 100 cm^3 of it:
In the High Energy Physics (particle physics) world, people use ROOT or its predecessor PAW. ROOT's not GPL but a proprietary free license. ROOT is all C++; it's totally object oriented with a bewildering feature list. You can make really pretty graphs with it, and it exports to postscript among other formats.
Snide comments aside, do check out some Rachmaninoff if you haven't already. The playing gets pretty hardcore and downright violent. The 3rd Concerto is legendary in that respect.
Well, there's the symphonies. The best known is probably the 2nd, 'Resurrection'. I also recommend the 5th. If you want pomposity, look to the 3rd. The songs from 'Des Knaben Wunderhorn' are fairly well known too.
Yeah, it was KTEH in San Jose. Amusingly I caught only the last three episodes, and was thoroughly confused. I didn't see NGE in its entirety until 2 years ago.
It'd be a lot simpler if US distributors would skip the dubbing and do a subbed release, but public perception toward subtitles needs to change first. As the ads-on-the-sides-of-buses for the San Francisco Int'l Film Festival said, "if you can read this ad, you can read subtitles."
An important aspect for me is that while AAC is a patented & licensed technology, Ogg is completely open. It's why Wikipedia accepts Ogg and not MP3.
I totally agree that the consumer doesn't care, which means we'll never have mass-market Ogg support. But I don't mind, as I'm not a portable audio guy. As long as my music plays on my computer without sounding fishy, I'm happy.
Jazz is my music too, but I have some sort of irrational physical aversion to AAC. I'm currently using Ogg q6, but I've thought about switching to Musepack. In the end the format doesn't really matter, because in a few years the next codec will come along and the cycle will repeat itself.
(Btw, on your site I see Cowboy Bebop arrangements (!) but the link seems to be broken...)
The first definition is a deviation from the norm; abnormal, irregular. The second definition is the criminal one. The third is excessive size, but the usage is considered incorrect.
Note that "enormous" has basically the same definitions, and "enormity" (which came later) was influenced by the adjective version.
There's an amusing variety of these words: enorm, enormance, enormand, enormification, enormious, enormitan, enormity, enormly, enormous, enormously, enormousness.
This is just my opinion, but I think all this crap the space programs are shooting off into space is a total waste of money that could be much better spent on any number of things (research, healthcare, internet security).
You do realize that: research = all this crap the space programs are shooting off into space
Slashdot Mirror
You're forgetting Coulomb repulsion -- fusion works at high temperatures because only then the kinetic energy of the atoms is enough to overcome the potential. There is tunneling, but at typical distances it's not significant.
I would think supercold conditions lead to a Bose-Einstein condensate rather than fusion.
Production of deuterium is a nuclear process, because you're slapping a neutron and a proton together.
p + p -> d + e + nu
The timescale/temperature required for this is "practical" only in the sun.
See http://www.tim-thompson.com/fusion.html#ppcycle
Nice. Was it in their newspaper ad?
What I took last semester:
EE 105: Microelectronic devices and circuits
What I'm taking this semester:
EE 140: Analog Integrated Circuits
Of course, it might be out of date, but...
2. Does creating a Google Account give me a Gmail account?
Unfortunately not. Gmail is currently in a limited release, so you need to get invited by another Gmail user in order to sign up. If you're interested in Gmail, you may want to check the About Gmail page periodically for updates. If, on the other hand, you already have a Gmail account, you can use your Gmail username and password to sign in to your Google Account.
http://www.google.com/help/faq_accounts.html
I started watching old/foreign films a few years ago, and I agree that there's much good stuff out there. The Pacific Film Archive and San Francisco International Film Festival have done much to broaden my horizons.
However, my peers just aren't interested in seeing these movies. The main complaint is "they're boring". Also common is "what, it's not in color?!". They want action and excitement; they don't want to think. They don't want to be challenged by what they see. When they praise a movie, it's in oblique terms: funny, awesome, cool, good.
We're celebrating Einstein's work on relativity, brownian motion, and the photoelectric effect.
World Year of Physics 2005
I bought an IBM 570 at the beginning of summer. P2 300, 192MB RAM. Cost me $75 off eBay for the "barebone", $75 for a 40GB hard drive, $20 for PCMCIA cards, and I've got a thin and light machine that runs Win2000 quite nicely. Of course the battery is good for about 15 minutes, and I have to transcode XVID to MJPEG, but overall I'm quite happy.
eBay's definitely riskier than a store like RetroBox, but the concept is the same.
Nice work. We've got the bloody things at Berkeley too. I had the thought of reverse engineering one and creating a lower-cost clone, but as these aren't used in upper divs I lack the incentive.
At Berkeley, they've rolled out Real's Rhapsody service at a substantially reduced rate for students: $2 a month.
So they're taking steps on one campus, at least.
It wouldn't be too hard to get Ben & Jerry's delivered to all the dorm rooms, actually. They have a store on the west edge of campus, on Oxford street, only a few blocks away from most of the dorms.
give them an allotment per MAC address
Exactly what we have at Berkeley. If you go over the weekly limit, you get cut off.
I think the parent is referring to packet shaping, which they use at Irvine. It makes P2P incredibly slow, essentially unusable.
Though at Berkeley, there's a mention of a monitoring system somewhere on the Rescomp site. It supposedly saves all your traffic for a certain period of time. It's possible, but more likely just FUD.
Yeah, the parent probably means CDs, but Amoeba sells a lot of vinyl too. It's debatable what's "full lossless" beyond a live performance, but I'd say vinyl gets closer than CD.
"Nano" is getting redundant, because most technical fields have an interest in getting to smaller and smaller scales. Whether it's electronics or chemistry, things are going nano. It's not like you can major in nanotechnology alone and expect to handle anything in the nanoscale. Realistically, you have to choose a field of concentration.
I put an extra zero in there, so it's actually 860K. Besides, I realize now that I neglected the heat of vaporization, which is 2260 kJ/kg.
Figure that the coffee starts at 10 degrees Celcius. We need 90 degrees of change to get it 100.
90 * 4186 J/(kg*K) * 0.1 kg = 37674 J
That's 10% of our energy budget. Another 226 kJ are required to vaporize the lot, 63%. The remaining 27% of energy is 96326 J. The heat capacity of water vapor is 1.84 kJ/(kg*K).
96326 J / 1840 J/(kg*K) / 0.1 kg = 523.5 K
Or 623.5 degrees Celcius.
Off topic, but...
The energy in a matter-antimatter (proton anti-proton) reaction goes toward the production of various particles that are of sufficiently high energy to pass right through your coffee: muons, gamma rays. Neutrinos too, which don't interact.
Under the unrealistic assumption that all the energy produced goes toward heating the coffee:
2ng matter + 2ng antimatter = 4e-9 g
E = m*c^2
= 4e-9 g * (3e8 m/s)^2
= 3.6e8 g*m^2/s^2
A joule is kg*m^2/s^2, so we're looking at 3.6e5 J of energy. Approximating coffee with water, water has a heat capacity of 4186 J/(kg*K), and assuming we have 100 cm^3 of it:
3.6e5 J / 4186 J/(kg*K) / 0.1 kg = 8600 K
I hope you like your coffee vaporized.
In the High Energy Physics (particle physics) world, people use ROOT or its predecessor PAW. ROOT's not GPL but a proprietary free license. ROOT is all C++; it's totally object oriented with a bewildering feature list. You can make really pretty graphs with it, and it exports to postscript among other formats.
Yep. Look up "carbon cycle."
Snide comments aside, do check out some Rachmaninoff if you haven't already. The playing gets pretty hardcore and downright violent. The 3rd Concerto is legendary in that respect.
Well, there's the symphonies. The best known is probably the 2nd, 'Resurrection'. I also recommend the 5th. If you want pomposity, look to the 3rd. The songs from 'Des Knaben Wunderhorn' are fairly well known too.
Yeah, it was KTEH in San Jose. Amusingly I caught only the last three episodes, and was thoroughly confused. I didn't see NGE in its entirety until 2 years ago.
It'd be a lot simpler if US distributors would skip the dubbing and do a subbed release, but public perception toward subtitles needs to change first. As the ads-on-the-sides-of-buses for the San Francisco Int'l Film Festival said, "if you can read this ad, you can read subtitles."
An important aspect for me is that while AAC is a patented & licensed technology, Ogg is completely open. It's why Wikipedia accepts Ogg and not MP3.
I totally agree that the consumer doesn't care, which means we'll never have mass-market Ogg support. But I don't mind, as I'm not a portable audio guy. As long as my music plays on my computer without sounding fishy, I'm happy.
Jazz is my music too, but I have some sort of irrational physical aversion to AAC. I'm currently using Ogg q6, but I've thought about switching to Musepack. In the end the format doesn't really matter, because in a few years the next codec will come along and the cycle will repeat itself.
(Btw, on your site I see Cowboy Bebop arrangements (!) but the link seems to be broken...)
The first definition is a deviation from the norm; abnormal, irregular. The second definition is the criminal one. The third is excessive size, but the usage is considered incorrect.
Note that "enormous" has basically the same definitions, and "enormity" (which came later) was influenced by the adjective version.
There's an amusing variety of these words: enorm, enormance, enormand, enormification, enormious, enormitan, enormity, enormly, enormous, enormously, enormousness.
Dirac sea, Higgs field... sure is a lot of stuff.
This is just my opinion, but I think all this crap the space programs are shooting off into space is a total waste of money that could be much better spent on any number of things (research, healthcare, internet security).
You do realize that: research = all this crap the space programs are shooting off into space