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Post by the light works on Jul 8, 2015 14:56:37 GMT
can you imagine the reaction of the twitterverse if you told them their phones would be unable to connect for a whole 60 seconds?
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Post by silverdragon on Jul 9, 2015 5:36:37 GMT
can you imagine the reaction of the twitterverse if you told them their phones would be unable to connect for a whole 60 seconds? Yep, and I say go ahead.  |
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Post by Cybermortis on Jul 11, 2015 11:50:26 GMT
By 'engine' I don't just mean the device itself, but all the other systems directly connected to it such as power cables. There would be a limit as to how much power a generator could safely produce, a limit to how much of that power you could send to the engine and a limit as to the amount of microwaves you could produce before you burn the emitter out. Okay, different view of this. If it uses high power microwaves, what will the "exhaust" be like? Are the radio waves small enough in bandwidth that they will dissipate harmlessly? Or are they focused enough that they will fry anything in it's wake? Or will they be so broadband that they act like an EM pulse and drown out radio communications for half the planet? I'd hate to see a promising new technology get shutdown by FCC Part 15 rules because it cause any harmful interference to existing communications systems. Microwaves are between 300GHz-300MHz, radio waves 300MHZ-3Hz. So in theory there shouldn't be any interference to communication systems. Of course there may be some 'leakage' that causes problems at the lower RF frequencies in early designs. But I'd expect that to be a question of fine-tuning the design so that the engine emits microwaves within a narrow range, which would probably also be much more efficient as it is reasonable to assume that the effect doesn't apply to the entire microwave frequency range given microwave ovens are not known for propelling a potato through the wall when you hit 'cook'. (And if you can duplicate the effect with all microwaves then you can just tune the system to avoid the more problematic frequencies anyway) |
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Post by the light works on Jul 11, 2015 13:09:22 GMT
Okay, different view of this. If it uses high power microwaves, what will the "exhaust" be like? Are the radio waves small enough in bandwidth that they will dissipate harmlessly? Or are they focused enough that they will fry anything in it's wake? Or will they be so broadband that they act like an EM pulse and drown out radio communications for half the planet? I'd hate to see a promising new technology get shutdown by FCC Part 15 rules because it cause any harmful interference to existing communications systems. Microwaves are between 300GHz-300MHz, radio waves 300MHZ-3Hz. So in theory there shouldn't be any interference to communication systems. Of course there may be some 'leakage' that causes problems at the lower RF frequencies in early designs. But I'd expect that to be a question of fine-tuning the design so that the engine emits microwaves within a narrow range, which would probably also be much more efficient as it is reasonable to assume that the effect doesn't apply to the entire microwave frequency range given microwave ovens are not known for propelling a potato through the wall when you hit 'cook'. (And if you can duplicate the effect with all microwaves then you can just tune the system to avoid the more problematic frequencies anyway) they've been known to explode potatoes, and eggs (in the shell) |
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Post by GTCGreg on Jul 11, 2015 13:11:43 GMT
Most RF engineers consider microwaves as any frequency above 1000 MHz. Some say as low as 800.megahertz. Regardless, from what I have read of the design of this engine, the RF energy is all contained within it.
I have never launched a potato with a microwave oven, but I have blown a hard-boiled egg to smithereens. And no, it was not still in the shell.
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Post by the light works on Jul 11, 2015 14:47:19 GMT
Most RF engineers consider microwaves as any frequency above 1000 MHz. Some say as low as 800.megahertz. Regardless, from what I have read of the design of this engine, the RF energy is all contained within it. I have never launched a potato with a microwave oven, but I have blown a hard-boiled egg to smithereens. And no, it was not still in the shell. the stories I was thinking of were about people trying to boil an egg in the microwave (in the shell) and building internal pressure in it fast enough to break it. (it occasionally happens in a pan, too if the shell has a flaw in it - but it is much less energetic) |
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Post by GTCGreg on Jul 11, 2015 15:00:12 GMT
Most RF engineers consider microwaves as any frequency above 1000 MHz. Some say as low as 800.megahertz. Regardless, from what I have read of the design of this engine, the RF energy is all contained within it. I have never launched a potato with a microwave oven, but I have blown a hard-boiled egg to smithereens. And no, it was not still in the shell. the stories I was thinking of were about people trying to boil an egg in the microwave (in the shell) and building internal pressure in it fast enough to break it. (it occasionally happens in a pan, too if the shell has a flaw in it - but it is much less energetic) When our hard-boiled eggs blew, they were not in the shells but otherwise intact. They had already been cooked and removed from the shell and we were just trying to reheat them a little. We put them in the microwave for a short period and then removed them and put them on the kitchen table. A few seconds later, they started to explode. And it wasn't a mild explosion either. It was very violent. Hot egg went everywhere. One piece stuck to my wife's face and caused a nasty burn. There was egg stuck all over the walls and the ceiling. My son, who was about 3 at the time, dove under the table. It was NOT good. He's 31 now and still will not eat a hard boiled egg. I always thought they had to be in the shell to explode. In doing a little research on the subject, I found that's not the case. After a peeled hard`boiled egg sits for a while, a thin membrane forms over the surface of the yolk. Heating the egg in a microwave oven causes pressure to build up inside the yolk and when it gets high enough, the membrane ruptures, suddenly releasing the pressure and that's what causes the egg to explode. If you want to reheat hard-boiled eggs in a microwave, you have to mash the yolks first. |
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Post by the light works on Jul 11, 2015 15:19:14 GMT
the stories I was thinking of were about people trying to boil an egg in the microwave (in the shell) and building internal pressure in it fast enough to break it. (it occasionally happens in a pan, too if the shell has a flaw in it - but it is much less energetic) When our hard-boiled eggs blew, they were not in the shells but otherwise intact. They had already been cooked and removed from the shell and we were just trying to reheat them a little. We put them in the microwave for a short period and then removed them and put them on the kitchen table. A few seconds later, they started to explode. And it wasn't a mild explosion either. It was very violent. Hot egg went everywhere. One piece stuck to my wife's face and caused a nasty burn. There was egg stuck all over the walls and the ceiling. My son, who was about 3 at the time, dove under the table. It was NOT good. He's 31 now and still will not eat a hard boiled egg. I always thought they had to be in the shell to explode. In doing a little research on the subject, I found that's not the case. After a peeled hard`boiled egg sits for a while, a thin membrane forms over the surface of the yolk. Heating the egg in a microwave oven causes pressure to build up inside the yolk and when it gets high enough, the membrane ruptures, suddenly releasing the pressure and that's what causes the egg to explode. If you want to reheat hard-boiled eggs in a microwave, you have to mash the yolks first. not to accuse you of fabricating that (I believe you without question) that would be a great minimyth idea. simple, fast, cheap, and with proper protective gear, low risk. - plus cool to watch on the high speed. (in controlled conditions) addendum: I started a thread for food minimyths in the random section. I left it for you to have the honors of describing the peeled boiled egg phenomenon. |
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Post by Lokifan on Jun 28, 2016 1:12:41 GMT
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Post by the light works on Jun 28, 2016 5:27:53 GMT
so it's now a photon drive... |
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Post by GTCGreg on Jun 28, 2016 12:25:07 GMT
So if you shine the "exhaust" on a photovoltaic panel, and then use that power to run the engine, do you have a perpetual motion machine?
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Post by silverdragon on Jun 29, 2016 6:48:31 GMT
So if you shine the "exhaust" on a photovoltaic panel, and then use that power to run the engine, do you have a perpetual motion machine? Light as an "Exhaust"... I am slightly hesitant about standing behind one, I have that nagging feeling that the light will be photons and laser quality, as it a lot of it an very condensed. Think on the difference between the water being used to power a water-mill and the water in a jet cutter that can even cut steel.... |
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Post by the light works on Jun 29, 2016 13:46:31 GMT
So if you shine the "exhaust" on a photovoltaic panel, and then use that power to run the engine, do you have a perpetual motion machine? Light as an "Exhaust"... I am slightly hesitant about standing behind one, I have that nagging feeling that the light will be photons and laser quality, as it a lot of it an very condensed. Think on the difference between the water being used to power a water-mill and the water in a jet cutter that can even cut steel.... I'm thinking more along the lines of the exhaust from a superheated steam jet. if the propulsion is gained from paired photons that are made invisible from the pairing, then in a large scale application, superheated steam would be the best comparison. |
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Post by GTCGreg on Jun 29, 2016 14:14:10 GMT
After reading the article, it turns out the photons being emitted are not light at all. They are microwaves. Some people mistakenly believe that photons are light. While light is made up of photons, all photons are not light as our eyes see it. It depends on how much energy is stored in each photon. Low energy photons produce visible light, while higher energy photons produce microwaves, x-rays, and even gamma rays. In this theory, the scientists believe that the photons being emitted are out of phase microwave photons, not visible light.
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Post by the light works on Jun 29, 2016 14:19:19 GMT
After reading the article, it turns out the photons being emitted are not light at all. They are microwaves. Some people mistakenly believe that photons are light. While light is made up of photons, all photons are not light as our eyes see it. It depends on how much energy is stored in each photon. Low energy photons produce visible light, while higher energy photons produce microwaves, x-rays, and even gamma rays. In this theory, the scientists believe that the photons being emitted are out of phase microwave photons, not visible light. so that fits the superheaed steam analogy even better. |
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Post by GTCGreg on Jun 29, 2016 14:22:48 GMT
After reading the article, it turns out the photons being emitted are not light at all. They are microwaves. Some people mistakenly believe that photons are light. While light is made up of photons, all photons are not light as our eyes see it. It depends on how much energy is stored in each photon. Low energy photons produce visible light, while higher energy photons produce microwaves, x-rays, and even gamma rays. In this theory, the scientists believe that the photons being emitted are out of phase microwave photons, not visible light. so that fits the superheaed steam analogy even better. Yes, if you could somehow shoot a stream of steam that was out of phase with itself so that it couldn't be detected as steam, yet was still there. That's the problem with this quantum level stuff. Our brains just don't like to go there. |
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Post by the light works on Jun 29, 2016 14:29:25 GMT
so that fits the superheaed steam analogy even better. Yes, if you could somehow shoot a stream of steam that was out of phase with itself so that it couldn't be detected as steam, yet was still there. That's the problem with this quantum level stuff. Our brains just don't like to go there. which is why we use analogies. undetectable photons don't compute, but a jet of steam that is so hot it doesn't condense is something we can wrap our brains around. |
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Post by ponytail61 on Aug 30, 2016 22:09:00 GMT
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Post by the light works on Sept 3, 2016 14:44:03 GMT
it's nice that NASA has gotten out of the space trucking business to focus on exploring once again. |
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Post by Lokifan on Sept 14, 2016 16:36:10 GMT
And now, they're going to actually test it in outer space: The 'impossible' EM Drive is about to be tested in spaceIf it won't work, it won't necessarily prove anything beyond a failed methodology or design. If it does work...the sky is no longer the limit! Still not buying a ticket, though...  |
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