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re: NASA's "impossible" EM Drive actually works though in violation of physics

Posted on 11/10/16 at 9:36 am to
Posted by shel311
McKinney, Texas
Member since Aug 2004
110841 posts
Posted on 11/10/16 at 9:36 am to
quote:

If they could get it to work on a larger scale with less power required, it would completely change the course of human history.

can you dumb this shite down for me and explain why and the uses of it?
Posted by link
Member since Feb 2009
19867 posts
Posted on 11/10/16 at 9:36 am to
this is interesting especially in the context of classical Newtonian vs. modern Nubian physics, which accounts for increased output from a fixed amount of input. example--on paper, black people should not be better athletes or dancers. we all have the same parts, bones, ligaments, muscles, etc., but for some reason, theirs just work better. Nubian physics is finding other examples just like this when analyzing other supposed closed energy systems.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
66763 posts
Posted on 11/10/16 at 9:36 am to
Yea. It'd have to accelerate a small fricking nuclear power plant to be operational and useful in space.

To put it in perspective, you need a 1400hp engine to turn a generator big enough to generate that much power. Enough power for 1.2 newtons of thrust.
Posted by mpar98
Baton Rouge
Member since Jan 2006
8034 posts
Posted on 11/10/16 at 9:37 am to
think of what cutting edge science will be in 100, 200, 1000 years from now
Posted by waiting4saturday
Covington, LA
Member since Sep 2005
9720 posts
Posted on 11/10/16 at 9:38 am to
quote:

The issue is the fact that the EM Drive defies Newton’s third law, which states that everything must have an equal and opposite reaction. So, according to Newton and our current understanding of the world around us, for a system to produce propulsion, it has to push something out the other way


This is BS, we just don't know/ can't measure what the reaction is..
Posted by Willie Stroker
Member since Sep 2008
12885 posts
Posted on 11/10/16 at 9:39 am to
quote:

But the EM Drive works without any fuel or propellants at all. It works by simply bouncing microwave photons back and forth inside a cone-shaped closed metal cavity. That motion causes the ‘pointy end’ of the EM Drive to generate thrust, and propel the drive in the opposite direction.


I'm not seeing where the energy needed to create this propulsion will come from? Will there not need to be a large volume of stored energy which serves the same logistical problem of storing propellant? It may be a safer form of fuel, but will it create the same need to store "fuel"/energy while traveling?
Posted by Tigeralum2008
Yankees Fan
Member since Apr 2012
17138 posts
Posted on 11/10/16 at 9:44 am to
quote:

I'm not seeing where the energy needed to create this propulsion will come from? Will there not need to be a large volume of stored energy which serves the same logistical problem of storing propellant? It may be a safer form of fuel, but will it create the same need to store "fuel"/energy while traveling?


In one of the videos it is discussed that the energy required for the EM Drive could one day be generated from nuclear reactors and solar arrays.

It is entirely feasible to think we will one day possess the ability to generate the kinds of energy these drives would need. The thrust to power ratio is what concerns me
Posted by J Murdah
Member since Jun 2008
39784 posts
Posted on 11/10/16 at 9:47 am to
Stap a flux capacitor on that bad boy and let's change history!
Posted by mizzoukills
Member since Aug 2011
40686 posts
Posted on 11/10/16 at 9:48 am to
quote:

nuclear reactors



would be my guess
Posted by J Murdah
Member since Jun 2008
39784 posts
Posted on 11/10/16 at 9:51 am to
quote:


I'm not seeing where the energy needed to create this propulsion will come from? Will there not need to be a large volume of stored energy which serves the same logistical problem of storing propellant?
You're asking the same questions the rocket scientists are.
Posted by Korkstand
Member since Nov 2003
28708 posts
Posted on 11/10/16 at 9:53 am to
quote:

quote:

That motion causes the ‘pointy end’ of the EM Drive to generate thrust, and propel the drive in the opposite direction.
I'm no scientist but isn't this your action/reation?
No, because nothing of mass leaves the system.
Posted by Korkstand
Member since Nov 2003
28708 posts
Posted on 11/10/16 at 9:53 am to
quote:

Violating the third law by pumping insane ratios of energy would seem to be expected if you ask me.
We should never "expect" a law to be violated, regardless of the amount of energy required.
Posted by Korkstand
Member since Nov 2003
28708 posts
Posted on 11/10/16 at 9:55 am to
quote:

can you dumb this shite down for me and explain why and the uses of it?
A spacecraft that can provide thrust using only solar panels would not need to carry its own fuel, and so can travel much farther and faster.
Posted by Korkstand
Member since Nov 2003
28708 posts
Posted on 11/10/16 at 9:59 am to
quote:

To put it in perspective, you need a 1400hp engine to turn a generator big enough to generate that much power. Enough power for 1.2 newtons of thrust.
It doesn't matter, as any amount of thrust at all is useful in space. Even if it can only provide 0.000001 Newtons of thrust using a solar array in space, that is enough to make things happen. The acceleration would be very slow, but as long as it is positive and constant incredible speeds can be achieved.
Posted by 19
Flux Capacitor, Fluxing
Member since Nov 2007
33189 posts
Posted on 11/10/16 at 10:11 am to
quote:

EM Drive


That's cool and all...but does it have that sweet screech of Twin Ion Engines?

If not, don't want.
Posted by mizzoukills
Member since Aug 2011
40686 posts
Posted on 11/10/16 at 10:12 am to
quote:

It doesn't matter, as any amount of thrust at all is useful in space. Even if it can only provide 0.000001 Newtons of thrust using a solar array in space, that is enough to make things happen. The acceleration would be very slow, but as long as it is positive and constant incredible speeds can be achieved.



exactly.

Trust would gain speed exponentially. It would start off incredibly slow but reach incredible speeds in a short time.

Scientists believe this machine could get us to Mars in 70 days.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
66763 posts
Posted on 11/10/16 at 10:16 am to
How does it stop when it gets there?

This is incredible stuff no doubt, but it's still held down by the big issue: energy. Figure out how to produce big power from a small package and shite like this propulsion device and other technologies far more advanced than this will begin showing up at an astonishing rate.

We need a compact lasting source of high energy. A nuclear plant the size of a Volkswagen. Until we figure out cold fusion or something, we're stuck to this planet.

I'm a pretty firm believer that there is a harnesable energy source that we can/will discover that will accomplish this. I don't think we'll ever escape the fact that doing shite costs energy.
This post was edited on 11/10/16 at 10:18 am
Posted by Korkstand
Member since Nov 2003
28708 posts
Posted on 11/10/16 at 10:23 am to
quote:

How does it stop when it gets there?
It would probably settle into orbit around the target. "Traditional" fuel and engines would be required to land safely.
Posted by TeddyPadillac
Member since Dec 2010
25545 posts
Posted on 11/10/16 at 10:30 am to
quote:

Imagine you're sitting in your car and push against your steering wheel. Will that motion cause your car to move forward?



you are so retarded.

it's not violating Newton's third law. They just haven't figured out yet where the that energy is going.

It's like when the marketing team at my company came out and said "we have this new motor that does this and that and b/c of this new technology there is less stress on the bearings, increasing reliability"
What that meant was, yeah those bearings will last longer now, but that torque the motor is creating is going to go somewhere. we found a way to take the force off these bearings, and now they are more concentrated on a different set of bearings on the machine.
As i brought up in our sales meeting, b/c i'm a jackass, you can't just say we removed this force from the machine. You simply removed it from a certain aspect of the machine and allowed some other aspect of the machine to absorb it. Using the stupid lingo they wanted us to use to sell it would be fine if you're selling to an idiot, which we usually are, but if you're talking to an engineer with a brain, he'd laugh at the stupidity of that marketing.
Posted by Ross
Member since Oct 2007
47824 posts
Posted on 11/10/16 at 10:37 am to
Most experiments with these that yield positive results have been because the positive thrust was so small it could able attributed to errors in measurement equipment. Put me in the camp that dismisses these things as impossible.
This post was edited on 11/10/16 at 10:42 am
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