You mean to tell me that the accepted definition in mainstream dictionaries is based upon the usage of the word in the mainstream media and the everyday vernacular? Inconceivable!
Wait a second here. So we go from Gemini, to Mercury, to Apollo. We go from actually putting a man in space, to tinkering around with keeping a man up in space, to landing on the fucking moon. The ability to land on the moon rates something along the lines of Win9x, better than what came before but not great. If you can't get more enthusiastic about that then you're the Woody Allen of space enthusiasts.
Someone comes along and cuts a power cord that is running the kind of current and voltages needed to charge a car up in a reasonable amount of time. I think that's the kind of problem that solves itself in short order.
Warning: Pregnant women, the elderly, and children under 10 should avoid prolonged exposure to the Large Hadron Collider.
Caution: The Large Hadron Collider may suddenly accelerate to dangerous speeds.
The Large Hadron Collider contains a liquid core, which, if exposed due to rupture, should not be touched, inhaled, or looked at.
Do not use the Large Hadron Collider on concrete.
Discontinue use of the Large Hadron Collider if any of the following occurs:
* itching
* vertigo
* dizziness
* tingling in extremities
* loss of balance or coordination
* slurred speech
* temporary blindness
* profuse sweating
* or heart palpitations.
If the Large Hadron Collider begins to smoke, get away immediately. Seek shelter and cover head.
The Large Hadron Collider may stick to certain types of skin.
When not in use, the Large Hadron Collider should be returned to its special container and kept under refrigeration. Failure to do so relieves the makers of the Large Hadron Collider, the scientific community, and its parent company, the military-industrial complex, of any and all liability.
Ingredients of the Large Hadron Collider include an unknown glowing green substance which fell to Earth, presumably from outer space.
The Large Hadron Collider has been shipped to our troops in Saudi Arabia and is being dropped by our warplanes on Iraq.
Do not taunt the Large Hadron Collider.
The Large Hadron Collider comes with a lifetime warranty.
I suspect these antennas are typically aimed at much lower frequencies (say HF/VHF), and require a ground plane. The reason why I think so is that for (super) high frequencies, antennas are mostly self-contained (one piece you can attach to a pole) and don't require a large garden and poles and the like.This is not the kind of structure you use for pleasure, but because you have to (at low frequencies).
There wouldn't be any reason why this would be worse at high frequencies than low frequencies. I could envision making a printed version of this on a very thick PCB and using the bottom copper cladding as your ground plane. Heck, a sheet of aluminum foil could probably do it in a pinch. The ground plane size at Wifi frequencies is not very large. I would guess the main reason that people haven't done this is why bother? The short wavelength of 2.4 GHz compared to everyday length scales means that it is easy and space efficient to build simple antenna arrays. In addition, you can easily create the antenna array as a printed antenna further simplifying the build process. With the rhombus though, you're talking about an antenna footprint of several wavelengths, like 8-12 as the OP stated. Why bother having such a large footprint when you could easily make a simple printed antenna array with spacings of sub-wavelength between elements? Or, if you are just a garage enthusiast, a waveguide or reflector antenna provides excellent gain. A parabolic dish requires minimal assembly and gives you 10's of dBi in gain.
Well crap, once again I can't read. I need sleepies. So why don't we make my post relevant that in addition to the standard light wavelength filters there is also a "fun" filter. Anything that isn't fun shows up in black and white so that you know you can ignore it. I mean, who wants to look at a picture of ice, I think we've seen that before.
Filters. The camera is not black and white but is actually sensitive to light across a wide spectrum. When they want to take a picture of a specific range of light, they use a filter to remove all the extraneous wavelengths. In this manner, they use a series of filters in the visible region to get an idea for the color content across narrow spectrums and use that to reproduce a full color image. Like the way that a monitor only uses red, green, and blue to reproduce a full color picture (although this works mainly because our eyes are mainly sensitive to those three colors).
I believe that knowing pi to double precision is enough to measure down to the hydrogen atomic scale. So even extremely accurate measurements can only lead to a (relatively) rough estimate of pi.
Slashdot Mirror
Like hell it is, it's turtles all the way down my friend.
What do you know? It has the timeline and lifetime of a meme.
Bah, 640K is enough for everyone.
Black holes like hell, I want to know whether or not it could make Ice-Nine.
You mean to tell me that the accepted definition in mainstream dictionaries is based upon the usage of the word in the mainstream media and the everyday vernacular? Inconceivable!
They've supplemented the crew with a number of unidentified red shirts who, for obvious reasons, do not count towards the escape vehicle quota.
Which only contributed to the unfortunate incident where he mixed the two up...
It would depend on whether or not the titanium dioxide is acting as a catalyst or component of the reaction.
You know what's also an instantly relatable unit?
Centimeters!
Oh, and by the way:
I live in Germany you insensitive clod!
Fine, we could also publish the size in units of Weisswurst.
I could have just suffered from a fatal heart attack, rendering the remainder of his post no more.
How can anyone seriously believe this guy? First he claims that we've walked on the moon and now he's saying that aliens exist.
Wait a second here. So we go from Gemini, to Mercury, to Apollo. We go from actually putting a man in space, to tinkering around with keeping a man up in space, to landing on the fucking moon. The ability to land on the moon rates something along the lines of Win9x, better than what came before but not great. If you can't get more enthusiastic about that then you're the Woody Allen of space enthusiasts.
Someone comes along and cuts a power cord that is running the kind of current and voltages needed to charge a car up in a reasonable amount of time. I think that's the kind of problem that solves itself in short order.
So, how much resistance is there in a Superconductor? A tiny bit?
Technically, we're dealing with smidgen scales here.
Warning: Pregnant women, the elderly, and children under 10 should avoid prolonged exposure to the Large Hadron Collider.
Caution: The Large Hadron Collider may suddenly accelerate to dangerous speeds.
The Large Hadron Collider contains a liquid core, which, if exposed due to rupture, should not be touched, inhaled, or looked at.
Do not use the Large Hadron Collider on concrete.
Discontinue use of the Large Hadron Collider if any of the following occurs:
* itching
* vertigo
* dizziness
* tingling in extremities
* loss of balance or coordination
* slurred speech
* temporary blindness
* profuse sweating
* or heart palpitations.
If the Large Hadron Collider begins to smoke, get away immediately. Seek shelter and cover head.
The Large Hadron Collider may stick to certain types of skin.
When not in use, the Large Hadron Collider should be returned to its special container and kept under refrigeration. Failure to do so relieves the makers of the Large Hadron Collider, the scientific community, and its parent company, the military-industrial complex, of any and all liability.
Ingredients of the Large Hadron Collider include an unknown glowing green substance which fell to Earth, presumably from outer space.
The Large Hadron Collider has been shipped to our troops in Saudi Arabia and is being dropped by our warplanes on Iraq.
Do not taunt the Large Hadron Collider.
The Large Hadron Collider comes with a lifetime warranty.
In Soviet Russia, Yakov Smirnoff erases you!
I suspect these antennas are typically aimed at much lower frequencies (say HF/VHF), and require a ground plane. The reason why I think so is that for (super) high frequencies, antennas are mostly self-contained (one piece you can attach to a pole) and don't require a large garden and poles and the like.This is not the kind of structure you use for pleasure, but because you have to (at low frequencies).
There wouldn't be any reason why this would be worse at high frequencies than low frequencies. I could envision making a printed version of this on a very thick PCB and using the bottom copper cladding as your ground plane. Heck, a sheet of aluminum foil could probably do it in a pinch. The ground plane size at Wifi frequencies is not very large. I would guess the main reason that people haven't done this is why bother? The short wavelength of 2.4 GHz compared to everyday length scales means that it is easy and space efficient to build simple antenna arrays. In addition, you can easily create the antenna array as a printed antenna further simplifying the build process. With the rhombus though, you're talking about an antenna footprint of several wavelengths, like 8-12 as the OP stated. Why bother having such a large footprint when you could easily make a simple printed antenna array with spacings of sub-wavelength between elements? Or, if you are just a garage enthusiast, a waveguide or reflector antenna provides excellent gain. A parabolic dish requires minimal assembly and gives you 10's of dBi in gain.
You win the cookie for best obscure reference of the day. I so miss that show.
Well crap, once again I can't read. I need sleepies. So why don't we make my post relevant that in addition to the standard light wavelength filters there is also a "fun" filter. Anything that isn't fun shows up in black and white so that you know you can ignore it. I mean, who wants to look at a picture of ice, I think we've seen that before.
Filters. The camera is not black and white but is actually sensitive to light across a wide spectrum. When they want to take a picture of a specific range of light, they use a filter to remove all the extraneous wavelengths. In this manner, they use a series of filters in the visible region to get an idea for the color content across narrow spectrums and use that to reproduce a full color image. Like the way that a monitor only uses red, green, and blue to reproduce a full color picture (although this works mainly because our eyes are mainly sensitive to those three colors).
You certainly couldn't land the ISS on the moon (well you *could* I guess but it'd take some serious engineering!).
It would not require so much engineering as it would a lot of patience and airplane glue.
Oooooh! How about: My father was a misogynist astronaut, you insensitive clod!
When will this ignorant meme die?
It doesn't die, it just keeps surrendering.
... and about 1000 if you've spent any time in a university math department.
Personally Paul, I try to avoid that as much as possible.
I believe that knowing pi to double precision is enough to measure down to the hydrogen atomic scale. So even extremely accurate measurements can only lead to a (relatively) rough estimate of pi.