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Science

longship

(40,416 posts)

10. I read it. It's still bollocks.

Reply to Warpy (Reply #9)

Fri Jun 17, 2016, 12:05 AM

Jun 2016

And if it is emitting photons, that is the origin of its thrust. But the whole deal is that the EM drive has always been pitched as a reactionless drive, one which has no emissions. And it is bollocks, no matter if somebody has figured out, by some hand waving, that it after all has some emissions.

It is not nice to fool Mother Nature.

I stand by my posts here.

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New paper claims that the EM Drive doesn't defy Newton's 3rd law after all [View all] n2doc Jun 2016 OP

Been keeping up with that thing, It is intriguing. I wonder how strong gravity would affect it tonyt53 Jun 2016 #1

Magnets? itsrobert Jun 2016 #2

I know you are being snarky TexasProgresive Jun 2016 #3

Why doesn't my car move forward when I push on the steering wheel? longship Jun 2016 #4

Yeah, except that it does Warpy Jun 2016 #5

That would violate all sorts of physics. longship Jun 2016 #6

Did you read the article? Warpy Jun 2016 #7

I am aware of the EM drive. longship Jun 2016 #8

Of course it is. Now read the article Warpy Jun 2016 #9

I read it. It's still bollocks. longship Jun 2016 #10

No, people aren't interested because it "has no emissions" muriel_volestrangler Jun 2016 #15

The rocket equation is pretty simple. longship Jun 2016 #16

No, it's not just Newton's Laws. Propellant mass is key to it muriel_volestrangler Jun 2016 #17

So in other words it doesnt violate any laws because the particles its emitting (?) or cstanleytech Jun 2016 #18

Light has momentum, but no mass muriel_volestrangler Jun 2016 #20

I thought that in the end everything had mass even light but if it doesnt have mass then how can it cstanleytech Jun 2016 #21

Light is affected by gravity, but it doesn't have mass of its own muriel_volestrangler Jun 2016 #22

My heads hurting now, I think I need an iburprofen :P lol cstanleytech Jun 2016 #23

We'll, it's conservation of momentum. longship Jun 2016 #24

But photons don't have a mass, but do have momentum muriel_volestrangler Jun 2016 #26

Because your car is invariant to spatial coordinate-translations. DetlefK Jun 2016 #11

Absolute rubbish. longship Jun 2016 #12

I'm sorry to say, but then your physics degree is a sham. You should demand your money back. DetlefK Jun 2016 #13

Heisenberg may have been here. longship Jun 2016 #14

Glad you took no offense. DetlefK Jun 2016 #27

It is being universally panned by physicists. longship Jun 2016 #28

You're making my head hurt. nt cstanleytech Jun 2016 #19

Here's Sean Carroll on this rubbish. longship Jun 2016 #25