you can derive special relativity in about one sheet of A4
You can today, because people have picked it apart for over a century. People could have written it succinctly a hundred years ago, but they were still getting their heads around it. They didn't have nicely prepared lecture notes to work from.
Nope. The amount of sunlight per m2 in space is several factors higher than on earth.
You are mistaken.
The intensity of solar radiation in space is only about 40% greater than it is on the surface. If a sunny day in the desert receives 1000 W/m^2, out in space it is usually about 1400 W/m^2. See solar constant.
What the hell kind of bridge is this? Not far from here, a few hundred jobs and ten months was all it took to rebuild a 10-lane, 1200-foot interstate bridge!
What stampede of humanity requires such a building effort in Redmond?
Maybe, but I haven't heard that autism has much - if any - correlation to socioeconomic status. Early work in the 1940s by a guy named Kanner indicated that, if anything, it correlates with high socioeconomic status. Today there isn't any real consensus that I can find.
In any event, there are plenty of rich families with autistic children. Instead of vinyl flooring, they've probably got Italian marble, or carpeting made from the eyelashes of Andean llamas, or a zen rock garden in the kitchen, or whatever the hell passes for luxury flooring these days.
Teaching them how to admin a linux VM would be more useful
It might be more useful, if they plan on being a linux VM admin. That kind of training is still something best left to a trade school or college, or to the motivated individual. Being an admin isn't a generally useful skill like, say, knowing how to read or properly conduct research using the Internet.
Electricity is a fluid commodity. Although long-distance transmission losses mean that power is consumed mostly near to where it is generated, I wouldn't make a blanket statement. The study is, after all, making generalizations about computers all over, which are powered by a mix of energy sources. So, the emissions attributable to them should take that mix into account.
In making these kinds of calculations, I'd just figure the energy makeup of the entire United States (or whichever country you prefer). For the U.S., nuclear makes up about 20%, natural gas another 20, coal about 50%, hydro about 7%, and other renewables about 2%. So, in figuring the carbon emissions for electrically-powered equipment, I'd say that for every Watt-hour, 70% of it produces carbon dioxide directly, and the other 30% can be discounted.
In other words, unless you want to talk about very specific cases (e.g. the off-grid guy who powers his home and computer from photovoltaics), no one is completely clean; everyone is about 70% dirty.
Besides, even if you want to declare your virtue by powering your idle computer from nuclear energy or magic fairy dust, do you really want to boast how clean your wasted power is?
See this response I posted to someone who argued this as well. Although she's the governor, and the capital is in Juneau, she spends most of her time in Anchorage and Wasilla. She even got paid per diem travel "expenses" when working from home. Morebackground.
This was a point of contention that came out during the campaign. Although the official governor's office is in Juneau, a lot of state business is conducted in Anchorage (by far the largest city), and Gov. Palin spent a lot of time conducting state business from her home in Wasilla. The point of contention was that, while working from her home, she charged the state per diem for travel because she was working away from Juneau. I don't remember if she later paid it back.
You must now surrender your two button mouse and exchange it for a 17,000 button mouse, so that each button does only one thing, regardless of context.
In truth, Sarah Palin almost certainly can see this from her house. Mt Redoubt is only about 100 miles from Anchorage, and a lot of the intervening distance is the open water of Cook Inlet. On a clear-ish day, one can see Denali (20,320 ft) from Anchorage, and that's over 100 miles away. A 50,000 foot tall ash plume will certainly be visible - once daylight arrives, anyway. I can only imagine what the view will be from the many towns on the east coast of the Kenai peninsula, where they'll be able to look right across Cook Inlet to the volcano.
[to be technical, Sarah Palin lives in Wasilla, which some consider a suburb of Anchorage, even though it's an hour away by car]
I notice in the two pictures of completed panels that there is significant reflection coming off the front-side glass. That sucks, because any light being reflected off the glass is light that can't be converted to solar power. Although it may not seem like a lot - glass being mostly transparent and all - it can cut down on your overall efficiency by a few percentage points. Commercially available solar panels (for residential and industrial use, anyway) use tempered glass with an anti-reflective coating, which is a lot more expensive than your ordinary plate glass from the hardware store.
Hydraulic accumulators generally have greater power density (W/kg, or W/L) than batteries+motors, even though their energy density (Whr/kg or Whr/L) is less. They aren't positioning these cars to compete with plug-in hybrids that can do your commute on a single charge. They are competing with the Prius and other current gas+electric hybrids where the hybrid configuration provides acceleration boosts and regenerative braking; thus get better gas mileage by running a smaller internal combustion engine more efficiently.
On the other hand, being very expensive niche vehicles, it isn't quite correct to say they are competing directly with the Prius and other mainstream hybrids.
Perhaps, but I think that IBM would be getting one hell of a sweet deal
Although it is a 100% markup from Tuesday's closing price, that's still only a share price of $9 or $10. Barring the insanity of the dotcom bubble, when Sun was selling at $100-$200, it has been in the range of $12-$20 for the last 15 years. Between the dotcom bust and the global economic clusterf%#k, it had been solidly above $15. So, the way I see it, IBM is able to pick up a good company with solid products, a good long-term strategy, and an enormous IP portfolio for a 30%-40% discount.
No wonder he was sullen and attacking people - do you have any idea how cold it is in Sweden this time of year? Particularly for an animal used to living in equatorial Africa!
Perhaps the Chinese have some master plan for military space domination, but I can't see how manned military space stations could possibly fit into it. Anything that you would want to do in space from a military standpoint could more easily and cheaply be done by autonomous or ground-controlled spacecraft.
Can anyone tell me what the strategic advantage of a manned space station is? Is there anything that outweighs the obvious disadvantages of all that extra technology (and accompanying risk) for keeping the carbon-based water bags alive?
What system of citizenship do you propose using instead? Are babies to not belong to the country of their birth? Do countries, borders, and governments not mean anything in this day and age?
Slashdot Mirror
You can today, because people have picked it apart for over a century. People could have written it succinctly a hundred years ago, but they were still getting their heads around it. They didn't have nicely prepared lecture notes to work from.
You are mistaken.
The intensity of solar radiation in space is only about 40% greater than it is on the surface. If a sunny day in the desert receives 1000 W/m^2, out in space it is usually about 1400 W/m^2. See solar constant.
Am I the only one who looked at this article and though of this?
Now we'll always know where Car 54 is.
"The light, the heat
I am complete"
What the hell kind of bridge is this? Not far from here, a few hundred jobs and ten months was all it took to rebuild a 10-lane, 1200-foot interstate bridge!
What stampede of humanity requires such a building effort in Redmond?
Maybe, but I haven't heard that autism has much - if any - correlation to socioeconomic status. Early work in the 1940s by a guy named Kanner indicated that, if anything, it correlates with high socioeconomic status. Today there isn't any real consensus that I can find.
In any event, there are plenty of rich families with autistic children. Instead of vinyl flooring, they've probably got Italian marble, or carpeting made from the eyelashes of Andean llamas, or a zen rock garden in the kitchen, or whatever the hell passes for luxury flooring these days.
The image that accompanies the article is, if I am not mistaken, from the Netscape mail client from, oh, 1998.
Looks like CNN could stand to update their image database.
So, because it's a car that will suffice for only 90% of trips for 90% of the driving public, it's a total failure?
It might be more useful, if they plan on being a linux VM admin. That kind of training is still something best left to a trade school or college, or to the motivated individual. Being an admin isn't a generally useful skill like, say, knowing how to read or properly conduct research using the Internet.
I wonder: was there a similar movement in the 50s to use TV to educate kids?
[I'm not trolling, I seriously want to know if society's already covered this ground.]
Electricity is a fluid commodity. Although long-distance transmission losses mean that power is consumed mostly near to where it is generated, I wouldn't make a blanket statement. The study is, after all, making generalizations about computers all over, which are powered by a mix of energy sources. So, the emissions attributable to them should take that mix into account.
In making these kinds of calculations, I'd just figure the energy makeup of the entire United States (or whichever country you prefer). For the U.S., nuclear makes up about 20%, natural gas another 20, coal about 50%, hydro about 7%, and other renewables about 2%. So, in figuring the carbon emissions for electrically-powered equipment, I'd say that for every Watt-hour, 70% of it produces carbon dioxide directly, and the other 30% can be discounted.
In other words, unless you want to talk about very specific cases (e.g. the off-grid guy who powers his home and computer from photovoltaics), no one is completely clean; everyone is about 70% dirty.
Besides, even if you want to declare your virtue by powering your idle computer from nuclear energy or magic fairy dust, do you really want to boast how clean your wasted power is?
See this response I posted to someone who argued this as well. Although she's the governor, and the capital is in Juneau, she spends most of her time in Anchorage and Wasilla. She even got paid per diem travel "expenses" when working from home. More background.
This was a point of contention that came out during the campaign. Although the official governor's office is in Juneau, a lot of state business is conducted in Anchorage (by far the largest city), and Gov. Palin spent a lot of time conducting state business from her home in Wasilla. The point of contention was that, while working from her home, she charged the state per diem for travel because she was working away from Juneau. I don't remember if she later paid it back.
You must now surrender your two button mouse and exchange it for a 17,000 button mouse, so that each button does only one thing, regardless of context.
In truth, Sarah Palin almost certainly can see this from her house. Mt Redoubt is only about 100 miles from Anchorage, and a lot of the intervening distance is the open water of Cook Inlet. On a clear-ish day, one can see Denali (20,320 ft) from Anchorage, and that's over 100 miles away. A 50,000 foot tall ash plume will certainly be visible - once daylight arrives, anyway. I can only imagine what the view will be from the many towns on the east coast of the Kenai peninsula, where they'll be able to look right across Cook Inlet to the volcano.
[to be technical, Sarah Palin lives in Wasilla, which some consider a suburb of Anchorage, even though it's an hour away by car]
A chariot made of gold? No wonder the horse is lame! Do you have any idea how heavy that thing would be?
I haven't had to wade through that many acronyms since "Good Morning Vietnam"
I notice in the two pictures of completed panels that there is significant reflection coming off the front-side glass. That sucks, because any light being reflected off the glass is light that can't be converted to solar power. Although it may not seem like a lot - glass being mostly transparent and all - it can cut down on your overall efficiency by a few percentage points. Commercially available solar panels (for residential and industrial use, anyway) use tempered glass with an anti-reflective coating, which is a lot more expensive than your ordinary plate glass from the hardware store.
Let me google that for you
Hydraulic accumulators generally have greater power density (W/kg, or W/L) than batteries+motors, even though their energy density (Whr/kg or Whr/L) is less. They aren't positioning these cars to compete with plug-in hybrids that can do your commute on a single charge. They are competing with the Prius and other current gas+electric hybrids where the hybrid configuration provides acceleration boosts and regenerative braking; thus get better gas mileage by running a smaller internal combustion engine more efficiently.
On the other hand, being very expensive niche vehicles, it isn't quite correct to say they are competing directly with the Prius and other mainstream hybrids.
Perhaps, but I think that IBM would be getting one hell of a sweet deal
Although it is a 100% markup from Tuesday's closing price, that's still only a share price of $9 or $10. Barring the insanity of the dotcom bubble, when Sun was selling at $100-$200, it has been in the range of $12-$20 for the last 15 years. Between the dotcom bust and the global economic clusterf%#k, it had been solidly above $15. So, the way I see it, IBM is able to pick up a good company with solid products, a good long-term strategy, and an enormous IP portfolio for a 30%-40% discount.
How many Libraries of Congress is that?
No wonder he was sullen and attacking people - do you have any idea how cold it is in Sweden this time of year? Particularly for an animal used to living in equatorial Africa!
Perhaps the Chinese have some master plan for military space domination, but I can't see how manned military space stations could possibly fit into it. Anything that you would want to do in space from a military standpoint could more easily and cheaply be done by autonomous or ground-controlled spacecraft.
Can anyone tell me what the strategic advantage of a manned space station is? Is there anything that outweighs the obvious disadvantages of all that extra technology (and accompanying risk) for keeping the carbon-based water bags alive?
What system of citizenship do you propose using instead? Are babies to not belong to the country of their birth? Do countries, borders, and governments not mean anything in this day and age?