The first way only works if the GPS receiver is moving, in which case it can calculate a course based on your current and previous positions. This course is then approximately your heading - although it can include a pretty large error due to drift (when in a ship or an airplane).
The second way only works if you have two (or more) GPS receivers a reasonable distance away from each other (say, fore and aft or port and starboard on a large enough ship, or in the tips of the wings of an airplane). Then the GPS device has two positions, and the line through them is your heading (if they're placed fore and aft) or your heading + or - a constant angle (for example, + or - 90 degrees if they're places port and starboard).
Did you really just say that Linus Torvalds should pay taxes for the billions of dollars that Linux is worth?
On Slashdot?
By the way, I don't think that code has that much monetary value, since he can't actually sell it. Sure, the net economic gain from using Linux could very well be in the billions, but that doesn't mean the guy is ever going to own the Moon.
Sure, you could put it like that. You're pretending like electricity is limitless, though. Which is only one of the flaws of your post.
The efficiency of the electrolysis process is high, but it's not 100%. (This PDF puts efficiency of most economically viable methods around 80%.) Taking into account the efficiency of the electricity production, that number plummets. Also keep in mind: about 50% of the United States' electricity is made in coal-fired plants. This Wikipedia article states:
Average share of electricity generated from coal in the US has dropped slightly, from 52.8% in 1997 to 49.0% in 2006. However, due to growth of the total demand for electricity, the net production of coal-generated electricity increased over the same period from 1.845 to 1.991 trillion kilowatt-hours per year in absolute terms.
The ways we're currently generating electricity are not at all limitless. Fossil fuels are still our primary source of electricity, and producing hydrogen uses a LOT of electricity. From this Wikipedia article:
In current market conditions, the 50 kWh of electricity consumed to manufacture one kilogram of compressed hydrogen is roughly as valuable as the hydrogen produced, assuming 8 cents/kWh.
At current market price, the cost of producing hydrogen from natural gas is about a third of the cost of electrolysis.
Which means people probably won't be using electricity, let alone solar/wind/hydro, to produce hydrogen. They'll use natural gas. Which, again, is not limitless.
I might be paranoid, but I don't believe the US had nothing to do with this. The dollar might not be as strong as the euro right now, but enough of them will still buy you plenty of politicians.
Please tell the EU to go fuck itself and/or adapt its copyright and patent law to the Canadian model.
And possibly to close Disneyland Paris, stop accepting money from **AA and start developing some common sense.
Crap, I think I overdid it with that last part. They are, after all, politicians. But if they're supposed to represent the European population, let me be the first to say this isn't what all of the population wants.
The CIA is only successful if you don't know they're involved. This was a pretty successful conspiracy, and therefore you can be sure that the CIA was indeed involved!
Clearly, you have a lot to learn about conspiracies.
There's no reason quantum propulsion couldn't be used on earth, except maybe it wouldn't be very efficient. It could be used to make helicopter-like machines, which levitate without distorting the air around it. Or ships that don't leave a trail. Come to think of it, this might one day be a big thing in military stealth vehicles.
From the executive summary: 'In 2008, Americans consumed information for about 1.3 trillion hours, an average of almost 12 hours per day. Consumption totaled 3.6 zettabytes and 10,845 trillion words, corresponding to 100,500 words and 34 gigabytes for an average person on an average day. A zettabyte is 10 to the 21st power bytes, a million million gigabytes. These estimates are from an analysis of more than 20 different sources of information, from very old (newspapers and books) to very new (portable computer games, satellite radio, and Internet video). Information at work is not included.'
12 hours a day of data consumption, work not included? Either you Americans don't sleep, or we've just found a possible cause of the economic crisis.
I'm pretty sure most smuggling between Cuba and the US is done on small yachts that don't even have AIS.
From this page:
IMO has made carriage of AIS mandatory in the recently revised SOLAS chapter V, for all new ships over 300 GRT, from July 1, 2002, and existing ships to follow in a tight schedule there after (see attached).
If you want to work out exactly how big a 300 GRT yacht would be, check out this Wikipedia page.
But as cool a future would be where every building is bomb proof,...
Then they'll just make bigger bombs. If Greek and Roman armies never used leather and chain mail armor, people would still (?) be robbing liquor stores with bows and arrows.
The new directives don't affect a situation where a TSA officer, in the performance of a regular screening, comes across evidence of illegal activity, such as a bag of illicit drugs.
Slashdot Mirror
GPS can determine heading in two ways.
The first way only works if the GPS receiver is moving, in which case it can calculate a course based on your current and previous positions. This course is then approximately your heading - although it can include a pretty large error due to drift (when in a ship or an airplane).
The second way only works if you have two (or more) GPS receivers a reasonable distance away from each other (say, fore and aft or port and starboard on a large enough ship, or in the tips of the wings of an airplane). Then the GPS device has two positions, and the line through them is your heading (if they're placed fore and aft) or your heading + or - a constant angle (for example, + or - 90 degrees if they're places port and starboard).
Did you really just say that Linus Torvalds should pay taxes for the billions of dollars that Linux is worth?
On Slashdot?
By the way, I don't think that code has that much monetary value, since he can't actually sell it. Sure, the net economic gain from using Linux could very well be in the billions, but that doesn't mean the guy is ever going to own the Moon.
Weird indeed. I've been to Manhattan, and there are lots of towers.
Sure, you could put it like that. You're pretending like electricity is limitless, though. Which is only one of the flaws of your post.
The efficiency of the electrolysis process is high, but it's not 100%. (This PDF puts efficiency of most economically viable methods around 80%.) Taking into account the efficiency of the electricity production, that number plummets. Also keep in mind: about 50% of the United States' electricity is made in coal-fired plants. This Wikipedia article states:
Average share of electricity generated from coal in the US has dropped slightly, from 52.8% in 1997 to 49.0% in 2006. However, due to growth of the total demand for electricity, the net production of coal-generated electricity increased over the same period from 1.845 to 1.991 trillion kilowatt-hours per year in absolute terms.
The ways we're currently generating electricity are not at all limitless. Fossil fuels are still our primary source of electricity, and producing hydrogen uses a LOT of electricity. From this Wikipedia article:
In current market conditions, the 50 kWh of electricity consumed to manufacture one kilogram of compressed hydrogen is roughly as valuable as the hydrogen produced, assuming 8 cents/kWh.
A more relevant quote, though, also comes from the PDF I linked earlier:
At current market price, the cost of producing hydrogen from natural gas is about a third of the cost of electrolysis.
Which means people probably won't be using electricity, let alone solar/wind/hydro, to produce hydrogen. They'll use natural gas. Which, again, is not limitless.
And I haven't even mentioned CO2.
As a European, I say thank you.
I might be paranoid, but I don't believe the US had nothing to do with this. The dollar might not be as strong as the euro right now, but enough of them will still buy you plenty of politicians.
Please tell the EU to go fuck itself and/or adapt its copyright and patent law to the Canadian model.
And possibly to close Disneyland Paris, stop accepting money from **AA and start developing some common sense.
Crap, I think I overdid it with that last part. They are, after all, politicians. But if they're supposed to represent the European population, let me be the first to say this isn't what all of the population wants.
isn't removing IE like removing a factory stereo CD deck that also does the GPS navigation and diagnostic interface
No, it's not. IE isn't awesome like that.
Do you think Tyler could even make it downstairs before lunchtime
Rock 'n' Roll doesn't do mornings.
I wish Slashdot wasn't such a fan of the pro-pirate spin.
I've seen what happens when websites become fans of the pro-ninja spin. It's not pretty either.
The CIA is only successful if you don't know they're involved. This was a pretty successful conspiracy, and therefore you can be sure that the CIA was indeed involved!
Clearly, you have a lot to learn about conspiracies.
There's no reason quantum propulsion couldn't be used on earth, except maybe it wouldn't be very efficient. It could be used to make helicopter-like machines, which levitate without distorting the air around it. Or ships that don't leave a trail. Come to think of it, this might one day be a big thing in military stealth vehicles.
No it's not. That MHD still pushes seawater backwards in order to push itself forward. It wouldn't work without water, so it's not reactionless.
Pun intended?
From the executive summary: 'In 2008, Americans consumed information for about 1.3 trillion hours, an average of almost 12 hours per day. Consumption totaled 3.6 zettabytes and 10,845 trillion words, corresponding to 100,500 words and 34 gigabytes for an average person on an average day. A zettabyte is 10 to the 21st power bytes, a million million gigabytes. These estimates are from an analysis of more than 20 different sources of information, from very old (newspapers and books) to very new (portable computer games, satellite radio, and Internet video). Information at work is not included.'
12 hours a day of data consumption, work not included? Either you Americans don't sleep, or we've just found a possible cause of the economic crisis.
The people that score low in IQ tests are usually smart at stuff the IQ test doesn't cover like NASCAR, the WWE/TNA Wrestling
The problem with that argument is that NASCAR and WWE are stupid.
Someone had to say it.
both men and women perceived men being smarter across generations
What's important is not reality but our perception of it. Men 1 - women 0.
IMO has made carriage of AIS mandatory in the recently revised SOLAS chapter V, for all new ships over 300 GRT, from July 1, 2002, and existing ships to follow in a tight schedule there after (see attached).
If you want to work out exactly how big a 300 GRT yacht would be, check out this Wikipedia page.
You damn youngsters don't even know how to have some fun anymore...
In theory, yes. In practice, a lot of gamers aren't stubborn enough.
Dude, it's a frickin' dual screen laptop! I want one and I want it now. Who cares what it's good for.
end up paying rather more than retail for them...
You can't put a price on freedom!
Because that's just what any employer wants to hear, more details about their employees' bowel movements!
Though I have to wonder, you do know about the existence of camera's, don't you? A picture says more than a thousand Greek words...
But as cool a future would be where every building is bomb proof, ...
Then they'll just make bigger bombs. If Greek and Roman armies never used leather and chain mail armor, people would still (?) be robbing liquor stores with bows and arrows.
The new directives don't affect a situation where a TSA officer, in the performance of a regular screening, comes across evidence of illegal activity, such as a bag of illicit drugs.