Swift (not an acronym, so don't capitalize all of the letters) does have a wide field of view gamma-ray telescope. The interesting thing is that it also has a narrow field of view x-ray telescope, as well as a narrow field of view UV/optical telescope on board. This allows the wide field of view instrument to find the burst, then have the telescope slew to position to observe it with the x-ray and UV/optical scopes.
When I participated in Science Olympiad, no attempt was made to determine if we recieved help. Help from parents usually wasn't a problem, it was help from the teacher/coach themselves. In certain cases, help was fine, i.e. using power tools, etc. Plus, you have to consider the kids participating in Science Olympiad- I wouldn't want my parent or a teacher to build something... we were nerds, and enjoyed doing it ourself!
It seems to me that one simple solution to preventing a heat sink falling off is to have the motherboard situated parallel with the ground, as opposed to the now popular motherboard-perpindicular-to-ground configuration in most tower cases.
Hence, the load bearing the weight of the heat sink is underneath it, not to its right or left!
I agree that seems like overkill... One's physical common sense easily answer's this problem, to a first approximation of course. Think of the stream of water pushing the surrounding air downwards. This creates a region of lower pressure compared to the air outside of the shower curtain. Alas, the curtain would move towards the area of lower pressure.
Of course, this just explains the large, global effect. More interesting (and complicated) stuff occurs, such as these vortices the author describes, but the overall effect is pretty simple to undertsand.
And proving that they have mass would help us account for a lot of the 'missing' or 'dark' matter that we think should exist.
Well, not really. I do not remember the exact percentages, but if you assume that the upper limit on the neutrino mass is the correct mass, this only makes up a very small percentage of the missing mass in the universe. Something else is out there!
The one point I do not understand is, does Tito need government approval (either US or Russian) to even board the space station? It is hard to imagine that the ISS is like, say, the local playground, where any joe can walk right in without the government giving its approval.
Though it was paid with american tax dollars, so how, at least in theory, could the government deny him access?
I've never figured out this "limitless supply of energy" thing either. The last time I checked, there is only a finite amount of usable material to for Uranium 238 left on earth. And since treaties have banned breeder reactors, there really isn't any way to recycle the used nuclear waste. Finite amounts+inefficent heat engines -> finite amount of energy.
Actually, the effeciency of modern nuclear reactors today are pretty close to 33% . In other words, if you put in 30 joules of heat, only 10 can be converted to useful work. Damn entropy...:-)
Is it ever possible for the legal system of a country to be used by a "monolithic" organization for a legitimate beef? Aren't lawsuits sometimes the right way to proceed? Attacking the legal system, using the whole "information wants to be free" schtick, makes us look like a bunch of cyberhooligans. Maybe if we want to impart real change, maybe we have to join the "establishment", and fight from within. Dirac out.
With the rate the educational system is going with this, some geek will be studying nuclear physics in his spare time, some teacher will catch wind of it, and the geek will be hauled off to jail for being suspected of wanting to build nuclear weapons.
Slashdot Mirror
Swift (not an acronym, so don't capitalize all of the letters) does have a wide field of view gamma-ray telescope. The interesting thing is that it also has a narrow field of view x-ray telescope, as well as a narrow field of view UV/optical telescope on board. This allows the wide field of view instrument to find the burst, then have the telescope slew to position to observe it with the x-ray and UV/optical scopes.
When I participated in Science Olympiad, no attempt was made to determine if we recieved help. Help from parents usually wasn't a problem, it was help from the teacher/coach themselves. In certain cases, help was fine, i.e. using power tools, etc. Plus, you have to consider the kids participating in Science Olympiad- I wouldn't want my parent or a teacher to build something... we were nerds, and enjoyed doing it ourself!
>They are building a straigt accelerator, which in and of itself is unheard of.
wrong- ever hear of the Stanford Linear Accelerator? SLAC
Non fiction writers should not be forgotten..
Paul_d
It seems to me that one simple solution to preventing a heat sink falling off is to have the motherboard situated parallel with the ground, as opposed to the now popular motherboard-perpindicular-to-ground configuration in most tower cases.
Hence, the load bearing the weight of the heat sink is underneath it, not to its right or left!
Paul
I agree that seems like overkill... One's physical common sense easily answer's this problem, to a first approximation of course. Think of the stream of water pushing the surrounding air downwards. This creates a region of lower pressure compared to the air outside of the shower curtain. Alas, the curtain would move towards the area of lower pressure.
Of course, this just explains the large, global effect. More interesting (and complicated) stuff occurs, such as these vortices the author describes, but the overall effect is pretty simple to undertsand.
Paul
And proving that they have mass would help us account for a lot of the 'missing' or 'dark' matter that we think should exist.
Well, not really. I do not remember the exact percentages, but if you assume that the upper limit on the neutrino mass is the correct mass, this only makes up a very small percentage of the missing mass in the universe. Something else is out there!
PaulIt's amazing what one neutron will do....
Am242: fuel to mars
Am241: Smoke detectors!
Paul_D
The one point I do not understand is, does Tito need government approval (either US or Russian) to even board the space station? It is hard to imagine that the ISS is like, say, the local playground, where any joe can walk right in without the government giving its approval.
Though it was paid with american tax dollars, so how, at least in theory, could the government deny him access?
Paul_D
I've never figured out this "limitless supply of energy" thing either. The last time I checked, there is only a finite amount of usable material to for Uranium 238 left on earth. And since treaties have banned breeder reactors, there really isn't any way to recycle the used nuclear waste. Finite amounts+inefficent heat engines -> finite amount of energy.
Actually, the effeciency of modern nuclear reactors today are pretty close to 33% . In other words, if you put in 30 joules of heat, only 10 can be converted to useful work. Damn entropy... :-)
Is it ever possible for the legal system of a country to be used by a "monolithic" organization for a legitimate beef? Aren't lawsuits sometimes the right way to proceed? Attacking the legal system, using the whole "information wants to be free" schtick, makes us look like a bunch of cyberhooligans. Maybe if we want to impart real change, maybe we have to join the "establishment", and fight from within. Dirac out.
With the rate the educational system is going with this, some geek will be studying nuclear physics in his spare time, some teacher will catch wind of it, and the geek will be hauled off to jail for being suspected of wanting to build nuclear weapons.