Try radiating on YOUR airwaves in the middle of TV Channel 9 and see what happens.
YOUR FCC allocated those "airwaves" to someone else, and it allocated some "airwaves" around 2.4 GHz to YOU for YOUR wireless router. And it allocated some other ones to hams for THEIR use. Perhaps they should switch to 2.4 GHz; maybe they couldn't care less what happens to your router.
150-200 years ago many many many babies were still dying in child birth or young children were dying from disease.
My maternal grandmother was born circa 1890. When she was a young woman, two women meeting for the first time would exchange two pieces of information early in the conversation: (1) how many children each had had, and (2) how many lived. When I was a kid in the late Forties, my mom was just beginning to ask her not to do that any more.
You wouldn't have been alone. There was a Western Union poster in my local supermarket for two or three years, advertising reduced rates for money transfers to Nigeria. Its background was a blank outline of Africa with Nigeria shaded in...the amount of the discount wasn't given, but the fine print pointed out that customers would be given less than the going rate of exchange.
Now this was in the Denver metro area, population 2.5 million; we certainly have immigrants from Nigeria, but not in any exceptional concentration. The only other country to get such specific attention from WU is Mexico.
I mentioned this to the store manager once in a while, and all I got was a "What's your point?" look...but the poster eventually disappeared.
When the sun heats the ground, the air next to the ground gets hot, expands, becomes less dense than unheated air, becomes buoyant, and rises. Air from less heated ground areas (cultivated fields, for instance) flows radially in to replace the air rising from hotspots (like rocky areas), and owing to some rather complex mathematical considerations, comes in in a spiral path. The air rising from the hotter spots is called a thermal. Buzzards circle in them to stay aloft and hunt with no muscular effort.
As the air rises, it encounters falling pressure, so it expands adiabatically, which causes its temperature to drop. If the thermal is strong enough, the temperature gets down to the condensation temp and water condenses out of it. This forms a cumulus cloud -- the kind that looks like a cauliflower, flat on the bottom and puffy on top. The condensing water gives up its heat of vaporization, which offsets the adiabatic temperature drop, which makes the air more buoyant and the thermal gets stronger. Sailplane pilots seek these out for basically the same reason buzzards do: to stay aloft without an engine.
A dust devil is merely the visual manifestation of a thermal over dusty ground: the circulating wind kicks up dust.
If the thermal is strong enough, the air rises above the freezing level and the water droplets give up their heat of fusion which is added to the heat of vaporization. This condition defines a thunderstorm. All thunderstorms produce rain and hail, although depending on surface conditions, the hail may melt before reaching the ground.
With each of these stages the intensity of the updraft, the speed of the wind flowing in, and the rate of circulation around it increase. At a certain point, the air entering the updraft sees so big a pressure drop that it starts to condense water before reaching the normal condensation level, and that makes a funnel cloud.
Finally, when the funnel cloud grows downward until it meets the dirt, dust and trailers coming up, it's called a tornado.
Yeah, that was a hummer too, although it had some neat aviation footage. John Wayne's uncomfortable attempts at lascivious banter with Janet Leigh were hysterical.
That picture was also bankrolled by Howard Hughes, and IIRC he was so stung by the negative reception that he withdrew them from release and they didn't appear in public again until well after his death.
Incidentally, another John Wayne aviation picture, The High and the Mighty, is about to make its return to public showing after a hiatus of several decades caused by some IP litigation between the producers and the Duke's estate.
At least Manos has the excuse that it was made by a bunch of nobodies with no money behind them. But when you put together John Wayne, Pedro Armendariz, Susan Hayward and Agnes Moorehead, put Dick Powell in the director's chair, have Howard Hughes write the checks, and get The Conqueror -- that's BAD.
...or any of several small communities in this state if they'd prefer an inefficient WiFi network to no broadband at all.
Qwest has the DSL rights in Colorado pretty well locked up, and simply won't give service in the rural towns until it's damn good and ready..and that won't be anytime soon, because it hasn't even finished wiring Denver yet. Meanwhile, it's lobbying for a state law to ensure that its monopoly will continue to await Qwest's whim.
New ideas need new names, and "to google" is a perfectly reasonable adaptation. Mixing up two perfectly good, related but non-synonymous words like "desirous" and "desirable" is not.
Good ol' Western Union -- they used to have an advertising poster in my local supermarket that offered a discount on money transfers to Nigeria. Its background graphic was a blank map of Africa with Nigeria colored in. This was in the Denver area, and there is no unusual concentration of Nigerian immigrants here, so it's not as if people were sending money to the home folks.
Incidentally, the fine print said that while the transfer fee was discounted, the customer would get less than the going exchange rate...smooth move.
Refraction does affect the apparent size, but only to a trivially small degree.
As light travels into a medium of increasing density, refraction bends it toward the higher-density region. That means that as it enters the atmosphere from space, it bends downward.
The amount of bend varies from zero for light that's already going straight downward (i.e., a star that appears to be overhead really is overhead) to about 0.54 degrees for light grazing the horizon. The moon also happens to be just about 0.54 degrees across, which means that when it appears to be sitting on the horizon, it's actually just under the horizon from a geometric standpoint.
But since the "top" of the moon is half a degree higher than the "bottom," the light coming from the top is refracted less than the light coming from the bottom, and that makes it look about 0.56 degrees across instead of 0.54...as I said, a trivial difference. Refraction has a significant effect on where the moon seems to be, but not on how big it seems to be.
So the effect is subjective, and here's a good way to see just how subjective it is. Go out on a full-moon night, cover one eye, and stare at the moon. Now hold a quarter up so it covers the moon, and move it in or out until it just barely covers.
But before you do this test, estimate how far you think the quarter will be from your eye. It has the makings of a pretty good bar bet.
I doubt it's a problem in Orlando, but in some small towns in Colorado, you are not permitted to have any wideband access. Qwest owns the rights to run DSL, and they will run it when they get damn good and ready, which is not going to be any time soon since they haven't finished wiring Denver yet. Meanwhile, they're spending plenty to prevent those towns from installing their own WiFi so the Qwest monopoly will be waiting for them when they want to exercise it.
Interesting...you're at least the third Orlandovian (Orlandovar?) in this thread who didn't hear about it. Might be interesting to determine who in the city gubmint wanted it to work out, and who didn't...
He never has time to watch a movie, or read a book. To try to meet a girl
The Phantom manages. He's a rich guy who likes to dress up in drag and fight crime too, and every member of his male line for four hundred years has managed to find a woman to move in with him and keep the dynasty going...
Yes, you get the "slippage" in solar sailing, but you don't care. The small amount of outward velocity addition is more than overcome by the orbital effect of the decrease in forward velocity. (And remember: half a rev later, the outward force will be acting in the opposite direction. It takes many revs to get anywhere.)
Yes, it sounds weird, but it works. And it gets weirder: the longer you apply a retarding force backward along the flight path, the faster you go forward. Practically everything about orbital mechanics is counterintuitive.
If you want to fly toward the sun, you rotate the sail at such an angle that the arriving light gets reflected forward along the direction of the orbital motion. That reduces the orbital speed, which causes the opposite side of the orbit to pass closer to the sun -- in other words, you've done what amounts to a very small retro burn.
If you rolled up the sail at this point, you would pass through the same point one rev later...but if you keep it positioned, you will gradually spiral inward.
This makes it so you can actually draw in a breath of air given all the pressure on your chest (and hence the 3000 psi scuba tanks).
At 100 feet underwater, the pressure is 44 pounds per square inch more than at the surface (that's in seawater; 43 in fresh water). The reason for the 3000-psi tank is to get a useful amount of air into a reasonably small space; the regulator on your tank drops the pressure by 2956 psi before the air ever gets to your mouthpiece.
The idea of using the suns energy is good, but maybe they should find a way to harness that energy so one could move the direction one pleases.
They did, and it's called solar sailing. It may be slow, but you can quite easily maneuver a solar sail either toward or away from a star. Orbital mechanics keeps many secrets from the mathematically uninitiated, but it's vaguely analogous to tacking a sailboat into the wind.
Ummm, no, conservatives created most of the housing codes and restrictive covenants to force everyone to conform to their way of life. Tacky-looking houses reduce the property values, dontcha know...and covenants were originally invented to keep blacks and Jews out.
Same here....Roomba last Christmas and the ol' lady was thrilled. She's dreamed of a cleaning robot since the Fifties and damned glad to get one at last, even if it does need a little help. Scooba this Christmas, fer shure.
Slashdot Mirror
Try radiating on YOUR airwaves in the middle of TV Channel 9 and see what happens.
YOUR FCC allocated those "airwaves" to someone else, and it allocated some "airwaves" around 2.4 GHz to YOU for YOUR wireless router. And it allocated some other ones to hams for THEIR use. Perhaps they should switch to 2.4 GHz; maybe they couldn't care less what happens to your router.
rj
My maternal grandmother was born circa 1890. When she was a young woman, two women meeting for the first time would exchange two pieces of information early in the conversation: (1) how many children each had had, and (2) how many lived. When I was a kid in the late Forties, my mom was just beginning to ask her not to do that any more.
rj
Yes, that's the official NASA malapropism.
the effects of gravity are significantly diminished
Yes, the effects of gravity in the local reference frame are diminished to...well...zero. Not a little bitty bit, which is what micro means, but zero.
NASA simply replaced a slightly loose term with a totally misleading one, and ignored a perfectly good one: freefall.
rj
You wouldn't have been alone. There was a Western Union poster in my local supermarket for two or three years, advertising reduced rates for money transfers to Nigeria. Its background was a blank outline of Africa with Nigeria shaded in...the amount of the discount wasn't given, but the fine print pointed out that customers would be given less than the going rate of exchange.
Now this was in the Denver metro area, population 2.5 million; we certainly have immigrants from Nigeria, but not in any exceptional concentration. The only other country to get such specific attention from WU is Mexico.
I mentioned this to the store manager once in a while, and all I got was a "What's your point?" look...but the poster eventually disappeared.
rj
They both form from convection.
When the sun heats the ground, the air next to the ground gets hot, expands, becomes less dense than unheated air, becomes buoyant, and rises. Air from less heated ground areas (cultivated fields, for instance) flows radially in to replace the air rising from hotspots (like rocky areas), and owing to some rather complex mathematical considerations, comes in in a spiral path. The air rising from the hotter spots is called a thermal. Buzzards circle in them to stay aloft and hunt with no muscular effort.
As the air rises, it encounters falling pressure, so it expands adiabatically, which causes its temperature to drop. If the thermal is strong enough, the temperature gets down to the condensation temp and water condenses out of it. This forms a cumulus cloud -- the kind that looks like a cauliflower, flat on the bottom and puffy on top. The condensing water gives up its heat of vaporization, which offsets the adiabatic temperature drop, which makes the air more buoyant and the thermal gets stronger. Sailplane pilots seek these out for basically the same reason buzzards do: to stay aloft without an engine.
A dust devil is merely the visual manifestation of a thermal over dusty ground: the circulating wind kicks up dust.
If the thermal is strong enough, the air rises above the freezing level and the water droplets give up their heat of fusion which is added to the heat of vaporization. This condition defines a thunderstorm. All thunderstorms produce rain and hail, although depending on surface conditions, the hail may melt before reaching the ground.
With each of these stages the intensity of the updraft, the speed of the wind flowing in, and the rate of circulation around it increase. At a certain point, the air entering the updraft sees so big a pressure drop that it starts to condense water before reaching the normal condensation level, and that makes a funnel cloud.
Finally, when the funnel cloud grows downward until it meets the dirt, dust and trailers coming up, it's called a tornado.
rj
Incidentally, another John Wayne aviation picture, The High and the Mighty, is about to make its return to public showing after a hiatus of several decades caused by some IP litigation between the producers and the Duke's estate.
rj
rj
...or any of several small communities in this state if they'd prefer an inefficient WiFi network to no broadband at all.
Qwest has the DSL rights in Colorado pretty well locked up, and simply won't give service in the rural towns until it's damn good and ready..and that won't be anytime soon, because it hasn't even finished wiring Denver yet. Meanwhile, it's lobbying for a state law to ensure that its monopoly will continue to await Qwest's whim.
rj
New ideas need new names, and "to google" is a perfectly reasonable adaptation. Mixing up two perfectly good, related but non-synonymous words like "desirous" and "desirable" is not.
rj
Good ol' Western Union -- they used to have an advertising poster in my local supermarket that offered a discount on money transfers to Nigeria. Its background graphic was a blank map of Africa with Nigeria colored in. This was in the Denver area, and there is no unusual concentration of Nigerian immigrants here, so it's not as if people were sending money to the home folks.
Incidentally, the fine print said that while the transfer fee was discounted, the customer would get less than the going exchange rate...smooth move.
rj
The amount of bend varies from zero for light that's already going straight downward (i.e., a star that appears to be overhead really is overhead) to about 0.54 degrees for light grazing the horizon. The moon also happens to be just about 0.54 degrees across, which means that when it appears to be sitting on the horizon, it's actually just under the horizon from a geometric standpoint.
But since the "top" of the moon is half a degree higher than the "bottom," the light coming from the top is refracted less than the light coming from the bottom, and that makes it look about 0.56 degrees across instead of 0.54...as I said, a trivial difference. Refraction has a significant effect on where the moon seems to be, but not on how big it seems to be.
So the effect is subjective, and here's a good way to see just how subjective it is. Go out on a full-moon night, cover one eye, and stare at the moon. Now hold a quarter up so it covers the moon, and move it in or out until it just barely covers.
But before you do this test, estimate how far you think the quarter will be from your eye. It has the makings of a pretty good bar bet.
rj
rj
Interesting...you're at least the third Orlandovian (Orlandovar?) in this thread who didn't hear about it. Might be interesting to determine who in the city gubmint wanted it to work out, and who didn't...
rj
Because it's unencrypted, like the one near me?
rj
The Phantom manages. He's a rich guy who likes to dress up in drag and fight crime too, and every member of his male line for four hundred years has managed to find a woman to move in with him and keep the dynasty going...
rj
Yes, it sounds weird, but it works. And it gets weirder: the longer you apply a retarding force backward along the flight path, the faster you go forward. Practically everything about orbital mechanics is counterintuitive.
rj
If you want to fly toward the sun, you rotate the sail at such an angle that the arriving light gets reflected forward along the direction of the orbital motion. That reduces the orbital speed, which causes the opposite side of the orbit to pass closer to the sun -- in other words, you've done what amounts to a very small retro burn.
If you rolled up the sail at this point, you would pass through the same point one rev later...but if you keep it positioned, you will gradually spiral inward.
rj
Oh, shit, prior art...if this guy sold his patent to SCO, it's the end of /.
rj
At 100 feet underwater, the pressure is 44 pounds per square inch more than at the surface (that's in seawater; 43 in fresh water). The reason for the 3000-psi tank is to get a useful amount of air into a reasonably small space; the regulator on your tank drops the pressure by 2956 psi before the air ever gets to your mouthpiece.
rj
They did, and it's called solar sailing. It may be slow, but you can quite easily maneuver a solar sail either toward or away from a star. Orbital mechanics keeps many secrets from the mathematically uninitiated, but it's vaguely analogous to tacking a sailboat into the wind.
rj
...how whiny that sounds when you've worked in a bullpen.
r "Same observation applies to MREs and K-rations" j
rj
Same here....Roomba last Christmas and the ol' lady was thrilled. She's dreamed of a cleaning robot since the Fifties and damned glad to get one at last, even if it does need a little help. Scooba this Christmas, fer shure.
rj
RAH would be proud.
rj
That you, Jeff?
rj