Currently the only way we know to bend space is through gravity,...
Actually, we know several ways to bend space, they just bend it in different "dimensions". Magnetic fields, electric fields and several others bend space.
Even if the EM drive bends space, that will probably be quite different than the bend we would need for a faster-than-light drive.
The drive being suggested here does not use reaction mass at all, it pushes against space itself No it does not....
Actually, you are only using a different "dialect" for the same situation.
His statement is quite true. The rocket pushes against it's own exhaust, and the exhaust is accellerated away from the engine. The boat pushes against the water, and the push causes the water to move backwards. Analyze both ways of saying it, mathematically, and you will see that they are identical.
The only problem with the old way of saying it was the scientists did not know the proper way to explain it, and it has "stuck" that way in the jargon.
"Published" and published are two different things. Where is that peer-reviewed paper in a respected journal? Where are the papers describing independent verification?
Except, "respected journals" do not publish controversial articles. Catch 22 ! 8-)
... Have the dummy and real item perform the same? Then the "real item" is not real at all. There is no other valid conclusion.
Don't be silly! At least one other possibilty is that the dummy is not acually a dummy. Which is what apperently happened. Besides, there was a third object that really was a dummy and it showed no thust.
If the EM drive really is warping space, then that's the mechanism you use to warp space.
Space has over 22 dimensions. Warping it in one dimension is not the same as warping it in another! Besides, a normal electromagnetic field is warping space in two dimensions (neither of which are the normal ones), so maybe that was all the laser spectrometer was "seeing".
What about the part that the wave is reflected back to the otherside of the cavity? Does it not just - reflect back and forth technically creating a net thrust of zero?
If there were no relativistic effects (or unkown something else) then that would be true. But we already know that relativistic effects are possible, and very weird.
Here's my past experience with microwave experiments: the damn things interferes with all your instruments in the most absurd of ways....
That's definitely true. Instruments, not designed for electromagnetic interference of that power, can act as "demodulators" and show readings or be damaged. But there is at least a possibility that NASA engineers would be quite familiar with this effect. I wonder if they were monitoring for leakage radiation?
"I understand how the engines work now. It came to me in a dream. The engines don't move the ship at all. The ship stays where it is and the engines move the universe around it." -- Cubert Farnsworth, Futurama 2:10
That's not surprising. The idea of a warp bubble is as old as Einstein and has been used in several science fiction stories. That doesn't prove it can't be true... 8-)
Blow through that limit? Are you sure about that?? Space is not a pure vacuum, so hitting very tiny spec of dust would know doubt be catastrophically distructive at those speeds!
Inside the warp bubble, the ship is stationary (or moving slowly). So it is not hitting anything. It is the warp bubble that is moving and it is in effect a shield.
Free can be nice. But do you really want to live in a house built by the lowest bidder? Maybe not...
The vendors can choose whatever price they want and the buyers can choose whether to buy it or not. But it only is a success if there is a balance.
And as is mentioned here, It is not that simple. There are many costs involved. And one that should be considered is: might the vendor dissappear just as you really need it?
If the teacher is requiring it, with no choice in the matter, then he is being an asshole. It is not appropriate for the classroom and is not necessary for the work.
If it was just about microwave energy going out the back, then it would be a microwave oven without the shielded enclosure. And the engineers would probably be in the hospital!
A big advantage of the Z-80 was the peripheral chips, are they still available?
In the days where a printer port has a plug-in board 10 inches across, the Zilog chips allowed much smaller and simpler boards. We built a hardened system for RF transmitter control that was one quarter the size and cost of the competition.
I was very disappointed that later chips sets still required so many extra "helper" chips. It was not until about 15 years ago that (almost) single-chip peripherals re-appeared.
They had warning. It has been known for thousands of years that the water receding rapidly, leaving dry beach. indicates a tidal wave approaching.
My parents told me that when I was very young and we were at the beach. I still remember it.
But the "educated" people in the Tsunami areas apparently did not know, or didn't believe. However, the tribal people who had legends about the waters did believe and retreated from the beaches. The death rate among them was much less.
Lots of theories about the demise of these civilizations. I don't recall mercury poisoning being discussed as a contributor, but it seems plausible.
If Lead and Mercury were as dangerous as the State of California thinks, most of us would either be long dead or "not exist" because their parents died! The compounds are not a good idea to eat, but thats different.
... Why did all of the ancient world decide to use massive stones, and only later civilizations realized "oh wait this is way easier with smaller bricks." Odd....
Probably because big stones are way more impressive. And last longer. But it still leaves the question of how.
Keep in mind, though, that most Archeologists have never built with things bigger than a matchstick. They need to consult more Engineers. 8-)
By the way, there is evidence of a ramp built into the great pyrimid, turning at the corners, that was coverd up by the "sheathing" stones. You can even see a hollow at the edge where the stones are missing.
Well, somebody needs to play Devil's Advocate here, so I will. What if onboard vehicle computers truthfully are (or soon will become) so complicated - and so integral to the functioning of the vehicle - that an untrained hobbyist screwing with it could cause injury or death?...
As if that were not already true for the cars before they used computers!
There is no more reason to have such a law now, that there was before.
Besides, read the report on the Toyota car computer system that was locking the throttle. I myself could do better than that! (Of course, I'm an engineer... )
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... none of which is remotely plausible.
Study a bit of modern physics and electronics, and then say again what is plausable.
Electricity is totally implausable, and I am an Electrical Engineer, so I know it.
Aragorn can't ever just tell anyone his name. ...
It is not what you are used to. But that does not mean it is bad.
The reason people read fantasy and SF is to spend some time in a -different- world.
... Short version: why didn't they just ask the Eagles to fly them to Mordor? Or over the mountains?
Um ... Anti-aircraft artillery? Or the magical equivelent. 8-)
Currently the only way we know to bend space is through gravity, ...
Actually, we know several ways to bend space, they just bend it in different "dimensions". Magnetic fields, electric fields and several others bend space.
Even if the EM drive bends space, that will probably be quite different than the bend we would need for a faster-than-light drive.
The drive being suggested here does not use reaction mass at all, it pushes against space itself ...
No it does not.
Actually, you are only using a different "dialect" for the same situation.
His statement is quite true.
The rocket pushes against it's own exhaust, and the exhaust is accellerated away from the engine.
The boat pushes against the water, and the push causes the water to move backwards. Analyze both ways of saying it, mathematically, and you will see that they are identical.
The only problem with the old way of saying it was the scientists did not know the proper way to explain it, and it has "stuck" that way in the jargon.
"Published" and published are two different things. Where is that peer-reviewed paper in a respected journal? Where are the papers describing independent verification?
Except, "respected journals" do not publish controversial articles. Catch 22 ! 8-)
I gave a literal quote from the abstract. Can you read?
Yes, I read the entire article. Maybe you should read it again yourself.
Or maybe you work for someone who just wants clickbait...
... Have the dummy and real item perform the same? Then the "real item" is not real at all. There is no other valid conclusion.
Don't be silly! At least one other possibilty is that the dummy is not acually a dummy. Which is what apperently happened.
Besides, there was a third object that really was a dummy and it showed no thust.
If the EM drive really is warping space, then that's the mechanism you use to warp space.
Space has over 22 dimensions. Warping it in one dimension is not the same as warping it in another!
Besides, a normal electromagnetic field is warping space in two dimensions (neither of which are the normal ones), so maybe that was all the laser spectrometer was "seeing".
What about the part that the wave is reflected back to the otherside of the cavity? Does it not just - reflect back and forth technically creating a net thrust of zero?
If there were no relativistic effects (or unkown something else) then that would be true. But we already know that relativistic effects are possible, and very weird.
Here's my past experience with microwave experiments: the damn things interferes with all your instruments in the most absurd of ways. ...
That's definitely true. Instruments, not designed for electromagnetic interference of that power, can act as "demodulators" and show readings or be damaged.
But there is at least a possibility that NASA engineers would be quite familiar with this effect. I wonder if they were monitoring for leakage radiation?
"I understand how the engines work now. It came to me in a dream. The engines don't move the ship at all. The ship stays where it is and the engines move the universe around it." -- Cubert Farnsworth, Futurama 2:10
That's not surprising. The idea of a warp bubble is as old as Einstein and has been used in several science fiction stories.
That doesn't prove it can't be true... 8-)
Blow through that limit? Are you sure about that?? Space is not a pure vacuum, so hitting very tiny spec of dust would know doubt be catastrophically distructive at those speeds!
Inside the warp bubble, the ship is stationary (or moving slowly). So it is not hitting anything. It is the warp bubble that is moving and it is in effect a shield.
addendum: not a patented secret. Just a secret, leading up to a patent someday.
Patents are not secret, they require disclosure. That is actually a reason to have patent law, it prevents perminant loss of secrets.
Free can be nice. But do you really want to live in a house built by the lowest bidder? Maybe not...
The vendors can choose whatever price they want and the buyers can choose whether to buy it or not. But it only is a success if there is a balance.
And as is mentioned here, It is not that simple. There are many costs involved. And one that should be considered is: might the vendor dissappear just as you really need it?
If the teacher is requiring it, with no choice in the matter, then he is being an asshole. It is not appropriate for the classroom and is not necessary for the work.
"If Engineers built buildings the way Programmers write programs, the first woodpecker that came along would destroy civilization!"
Seriously. Check for errors and do something reasonable about them. Calling the GPF vector is not reasonable! 8-(
If it was just about microwave energy going out the back, then it would be a microwave oven without the shielded enclosure. And the engineers would probably be in the hospital!
We're saying the same thing. You directly, me via subtle sarcasm. ...
Don't use sarcasm on the Internet. Without the body language and facial cues, most people will not recognize it.
Say what you mean, straight-out. 8-)
A big advantage of the Z-80 was the peripheral chips, are they still available?
In the days where a printer port has a plug-in board 10 inches across, the Zilog chips allowed much smaller and simpler boards. We built a hardened system for RF transmitter control that was one quarter the size and cost of the competition.
I was very disappointed that later chips sets still required so many extra "helper" chips. It was not until about 15 years ago that (almost) single-chip peripherals re-appeared.
Think: Eggshell. 8-)
They had warning. It has been known for thousands of years that the water receding rapidly, leaving dry beach. indicates a tidal wave approaching.
My parents told me that when I was very young and we were at the beach. I still remember it.
But the "educated" people in the Tsunami areas apparently did not know, or didn't believe. However, the tribal people who had legends about the waters did believe and retreated from the beaches. The death rate among them was much less.
... - but a king's tomb just doesn't cut the mustard for me.
Probably just a high-security warehouse, for the Mercury that they used to extract gold from ore.
Lots of theories about the demise of these civilizations. I don't recall mercury poisoning being discussed as a contributor, but it seems plausible.
If Lead and Mercury were as dangerous as the State of California thinks, most of us would either be long dead or "not exist" because their parents died!
The compounds are not a good idea to eat, but thats different.
... Why did all of the ancient world decide to use massive stones, and only later civilizations realized "oh wait this is way easier with smaller bricks." Odd. ...
Probably because big stones are way more impressive. And last longer. But it still leaves the question of how.
Keep in mind, though, that most Archeologists have never built with things bigger than a matchstick. They need to consult more Engineers. 8-)
By the way, there is evidence of a ramp built into the great pyrimid, turning at the corners, that was coverd up by the "sheathing" stones. You can even see a hollow at the edge where the stones are missing.
Well, somebody needs to play Devil's Advocate here, so I will. What if onboard vehicle computers truthfully are (or soon will become) so complicated - and so integral to the functioning of the vehicle - that an untrained hobbyist screwing with it could cause injury or death? ...
As if that were not already true for the cars before they used computers!
There is no more reason to have such a law now, that there was before.
Besides, read the report on the Toyota car computer system that was locking the throttle. I myself could do better than that!
(Of course, I'm an engineer... )