In most situations when you're starting to be educated about mechanics, you start with perfect springs and perfect elastic bands. Similarly in physics, you start with perfect materials. This makes the calculations a lot easier, and in that way gives the student a better understanding of the subject. Ofcourse I could explain that even for a material with a density of 1g/m (atmospheric air has a density of 1.2kg/m) the weight of a string of 1 lightyear long and 1 millimeter diameter would add up to be about 8 million kg, and thus the inerta to push that rod forward and back is nigh impossible to overcome.
Also, I could explain to him that the soundwave-propagation through a marble of dense material results in the reaction with the next marble, and that even though the speed of the soundwave through a solid matter is rather large compared to the speed of sound through air under atmospheric pressure, it's still a far cry from lightspeed, thus that it takes a long long time for the marble at the receiving end to react on the marble on the transmitting end. This all however doesn't make it easy for anyone not in this field of expertise to understand the analog.
In theory you can have the perfect liquid. In theory you can have the perfect solid. In theory you can have the perfect vacuum. In practice you can't any of those. But that doesn't mean you can -- in theory -- continue working with theoretical perfect materials. In theory doesn't mean in fact.
Electrons don't move through a conductor with the speed of light. They collide too much, reducing their speed to mere millimeters per second. The signal however travels with approximately 0.75c. This can be explained by an analog. If you have a row of marbles in a gutter of the same width of the marbles' diameter, you can push against the first marble, and simultaneously the last marble would move. The "signal" of you pushing the marble gets propagated through the umpty marbles inbetween and reaches the last marble far before your hand has reached its location.
In theory it is possible to create a system that transmits informations faster than the speed of light. Taking a perfect weightless incompressible solid marbles, and place them in a 1 lightyear long gutter made of a similar perfect inelastic material. place a compressive spring at the receiving end, and push the marbles from the transmitting end in a pattern. The very moment you push the marble in a bit, and let it relax again, the far end, 1 lightyear away, will see that exact same movement, thus transferring information faster than the speed of light.
It is however obviously impossible to make those perfect materials, thus we're bound to sub-c communications.
"Dear mister pirate. This ship is equipped with 'ROMG'. This stands for remote operatable machine guns. These are equipped with motion sensors and infra-red sensors. They thus will shoot on anything that either moves, or emits heat. I will activate these in 10... 9... 8..."
With every power generating technology comes disadvantages and/or hazards.
Solar power generates electricity from solar radiation that would normally be bounced back out of the atmosphere for some 90% orso. This energy is converted to heat in your microwave and electric car. Hence raising the temperature of the earth.
Wind generators have the tendency to chop up birds. As long as they're doves I don't mind much, but greenpeace kinda thinks otherwise. The generated electricity also gets converted to heat, but the friction between the air-particles that you slow down during power generation would've done thesame so I think that's about equal. (haven't calculated that)
Wave generators generally do thesame thing with fish as the wind generators do with birds, but there are a few types that are benign. They use the wave action in a column of air to push air back and forth in a tube, creating an airflow to generate power. This type when using a mesh in the air side, won't hurt birds or fish, so Greenpeace shouldn't have anything to complain about that, but I'm afraid they'll find a way anyway. Wacko's.
Chances of failure in underground cabling is far lower than chances of cabling above ground breaking. Granted, it takes a bit more effort to fix it/when/ it eventually breaks, but overall downtime is far higher with above-ground cabling.
erm.....
Then you don't know what you are doing. I'm living in the Netherlands, and we have nothing above ground except high-voltage lines. Everything, powerlines, telephone, tv/radio, data, everything, even in rural areas, is underground. And believe me, that 3 meter (9 ft) New Orleans is below sealevel.... it's nothing.
By the way.... There's this big-ass whopping tunnel between England and France, that's below sealevel. Trains drive there. Same between Denmark and Sweden where trains and cars drive.
I also think there's something similar in Boston. It's not rocket science to build something like that.
More importantly, what do they consider terrorist videos?
Because, well, they should then also block the crap out of those extremist christian kids brainwashing videos.., and what about ETA videos? or PKK videos?
There's more extremists groups than the Al Qaeda one....
Actually, its not. It's just that many people think it is.
Abusing your kid is illegal, but there's a long way to go from a correctional slap to systematical abuse.
No idea what my first number was again, but first used it in '97. Forgot the pass one day after some time of not using it, probably a holiday orso, and started a new account. That one was with 8 numbers, starting with 314. Haven't used it since they started the lite account, and didn't update the 2003b for ages.
ReiserFS is maybe created by a murderer, but that doesn't mean it's bad. Hans Reiser may have comitted an intolerable crime, but if you would rob yourself of what might be the best filesystem for your application, it would just be a bloody shame. In my opinion using ReiserFS doesn't immediately mean you agree with his actions. It just mean that you prefer ReiserFS over other systems.
This being said though, I prefer ZFS myself:)
Also, considering Microsoft has so many employees, I have no doubt, that there have been people working there that comitted far worse than a crime of passion. Doesn't mean that the product is bad... Well, okay it is, but not because of some employee going nuts.
Besides, I think there are many CEO's or CFO's or any C?O's out there that have comitted far worse than a single murder, like Shell pumping oil in africa, killing thousands knowingly by pollution. If you'd go your route, you wouldn't be able to get groceries anymore in a normal fasion, because the truck getting the groceries might have filled it up with diesel at a shell.
Sometimes when you browse in the off corners of the web, you find wonderful examples of how to entertain those, that are (perhaps not by choice) totally reliant on their eyes...
I want to share one of those I found a while ago: Jones Partners: Architecture
WARNING!! MAY CAUSE SEISURES, HEADACHES, NAUSEA, BLEEDING AND/OR EXPLODING EYES
Disclaimer:
Following the link is voluntary. I am not morally, financially, or in any other way responsible for the wellbeing of those following the link in this post. You have been warned. Good luck.
How much I sometimes might cringe at the sight of teens typing, on their defence I have to say that language is dynamic. If it's not, it's dead.
The meaning of most words has always changed over time. Learn to live with it, or grow to be a grumpy old man.
Well, the 40%, I actually wouldn't be surprised in a highly crowded metro or something. You're always less at ease there, and with the added chance of pickpockets, you're bound to be a tad more paranoid than normal.
What I don't get though, is why they needed VR for this. Couldn't they just have placed 80 people in a crowded room or tube carriage where 10 are real test persons and the other 70 are actors and monitors? (monitor as in, monitoring the behaviour of the test subjects, not a TFT or CRT screen;))
It would seem to me that VR isn't really a technological feat that makes otherwise impossible to test situations possible in this sense. It might make things easier in a way that you don't need 70-ish actor-ish at thesame time in your test hall, but still.
Might actually even be cheaper to use actors. I can't imagine the VR system to be cheap...
Slashdot Mirror
Was still in the electron particle analog mode, as in many individual sphere-thingies pushing against eachother :)
Missing a few superscript 3's there for volumetric values. Apparently the actual superscript 3 symbol doesn't get recognised.
In most situations when you're starting to be educated about mechanics, you start with perfect springs and perfect elastic bands. Similarly in physics, you start with perfect materials. This makes the calculations a lot easier, and in that way gives the student a better understanding of the subject. Ofcourse I could explain that even for a material with a density of 1g/m (atmospheric air has a density of 1.2kg/m) the weight of a string of 1 lightyear long and 1 millimeter diameter would add up to be about 8 million kg, and thus the inerta to push that rod forward and back is nigh impossible to overcome. Also, I could explain to him that the soundwave-propagation through a marble of dense material results in the reaction with the next marble, and that even though the speed of the soundwave through a solid matter is rather large compared to the speed of sound through air under atmospheric pressure, it's still a far cry from lightspeed, thus that it takes a long long time for the marble at the receiving end to react on the marble on the transmitting end. This all however doesn't make it easy for anyone not in this field of expertise to understand the analog.
In theory you can have the perfect liquid. In theory you can have the perfect solid. In theory you can have the perfect vacuum. In practice you can't any of those. But that doesn't mean you can -- in theory -- continue working with theoretical perfect materials. In theory doesn't mean in fact.
Electrons don't move through a conductor with the speed of light. They collide too much, reducing their speed to mere millimeters per second. The signal however travels with approximately 0.75c. This can be explained by an analog. If you have a row of marbles in a gutter of the same width of the marbles' diameter, you can push against the first marble, and simultaneously the last marble would move. The "signal" of you pushing the marble gets propagated through the umpty marbles inbetween and reaches the last marble far before your hand has reached its location.
In theory it is possible to create a system that transmits informations faster than the speed of light. Taking a perfect weightless incompressible solid marbles, and place them in a 1 lightyear long gutter made of a similar perfect inelastic material. place a compressive spring at the receiving end, and push the marbles from the transmitting end in a pattern. The very moment you push the marble in a bit, and let it relax again, the far end, 1 lightyear away, will see that exact same movement, thus transferring information faster than the speed of light.
It is however obviously impossible to make those perfect materials, thus we're bound to sub-c communications.
No, but your grand(^^64)son might
"Dear mister pirate. This ship is equipped with 'ROMG'. This stands for remote operatable machine guns. These are equipped with motion sensors and infra-red sensors. They thus will shoot on anything that either moves, or emits heat. I will activate these in 10... 9... 8..."
Totally true, but you can't buy a new '68 Covrette C3 StingRay from the GM Factory.
Or a U-turn depending on wether you're going left on a 4-way junction or a 3-way junction...
With every power generating technology comes disadvantages and/or hazards.
Solar power generates electricity from solar radiation that would normally be bounced back out of the atmosphere for some 90% orso. This energy is converted to heat in your microwave and electric car. Hence raising the temperature of the earth.
Wind generators have the tendency to chop up birds. As long as they're doves I don't mind much, but greenpeace kinda thinks otherwise. The generated electricity also gets converted to heat, but the friction between the air-particles that you slow down during power generation would've done thesame so I think that's about equal. (haven't calculated that)
Wave generators generally do thesame thing with fish as the wind generators do with birds, but there are a few types that are benign. They use the wave action in a column of air to push air back and forth in a tube, creating an airflow to generate power. This type when using a mesh in the air side, won't hurt birds or fish, so Greenpeace shouldn't have anything to complain about that, but I'm afraid they'll find a way anyway. Wacko's.
You seem to have never watched something like the Tour de France or the Giro d'Italia where riders have made an art of peeing while riding.
It may be just me but I really don't get why apple has such a big fanbase, seeing as how they treat their customers...
Chances of failure in underground cabling is far lower than chances of cabling above ground breaking. Granted, it takes a bit more effort to fix it /when/ it eventually breaks, but overall downtime is far higher with above-ground cabling.
erm.....
Then you don't know what you are doing. I'm living in the Netherlands, and we have nothing above ground except high-voltage lines. Everything, powerlines, telephone, tv/radio, data, everything, even in rural areas, is underground. And believe me, that 3 meter (9 ft) New Orleans is below sealevel.... it's nothing.
By the way.... There's this big-ass whopping tunnel between England and France, that's below sealevel. Trains drive there. Same between Denmark and Sweden where trains and cars drive.
I also think there's something similar in Boston. It's not rocket science to build something like that.
More importantly, what do they consider terrorist videos?
Because, well, they should then also block the crap out of those extremist christian kids brainwashing videos.., and what about ETA videos? or PKK videos?
There's more extremists groups than the Al Qaeda one....
Actually, its not. It's just that many people think it is.
Abusing your kid is illegal, but there's a long way to go from a correctional slap to systematical abuse.
All solar power does, but that's generally "overlooked" because it's "CO2-neutral"....
Gotta love politics.
No idea what my first number was again, but first used it in '97. Forgot the pass one day after some time of not using it, probably a holiday orso, and started a new account. That one was with 8 numbers, starting with 314. Haven't used it since they started the lite account, and didn't update the 2003b for ages.
ReiserFS is maybe created by a murderer, but that doesn't mean it's bad. Hans Reiser may have comitted an intolerable crime, but if you would rob yourself of what might be the best filesystem for your application, it would just be a bloody shame. In my opinion using ReiserFS doesn't immediately mean you agree with his actions. It just mean that you prefer ReiserFS over other systems.
:)
This being said though, I prefer ZFS myself
Also, considering Microsoft has so many employees, I have no doubt, that there have been people working there that comitted far worse than a crime of passion. Doesn't mean that the product is bad... Well, okay it is, but not because of some employee going nuts.
Besides, I think there are many CEO's or CFO's or any C?O's out there that have comitted far worse than a single murder, like Shell pumping oil in africa, killing thousands knowingly by pollution. If you'd go your route, you wouldn't be able to get groceries anymore in a normal fasion, because the truck getting the groceries might have filled it up with diesel at a shell.
Ahh... But then it's all decimal afterall! What are we whining about then with Mibibytes and Gibibytes and all that crap :-p
Sometimes when you browse in the off corners of the web, you find wonderful examples of how to entertain those, that are (perhaps not by choice) totally reliant on their eyes...
I want to share one of those I found a while ago:
Jones Partners: Architecture
WARNING!! MAY CAUSE SEISURES, HEADACHES, NAUSEA, BLEEDING AND/OR EXPLODING EYES
Disclaimer: Following the link is voluntary. I am not morally, financially, or in any other way responsible for the wellbeing of those following the link in this post. You have been warned. Good luck.
How much I sometimes might cringe at the sight of teens typing, on their defence I have to say that language is dynamic. If it's not, it's dead.
The meaning of most words has always changed over time. Learn to live with it, or grow to be a grumpy old man.
Well, the 40%, I actually wouldn't be surprised in a highly crowded metro or something. You're always less at ease there, and with the added chance of pickpockets, you're bound to be a tad more paranoid than normal.
;))
What I don't get though, is why they needed VR for this. Couldn't they just have placed 80 people in a crowded room or tube carriage where 10 are real test persons and the other 70 are actors and monitors? (monitor as in, monitoring the behaviour of the test subjects, not a TFT or CRT screen
It would seem to me that VR isn't really a technological feat that makes otherwise impossible to test situations possible in this sense. It might make things easier in a way that you don't need 70-ish actor-ish at thesame time in your test hall, but still.
Might actually even be cheaper to use actors. I can't imagine the VR system to be cheap...
Dune II already had engineers, 5 years before C&C came out.
Haven't received enough hugs from your daddy??
You'd be surprised...