Skip to comments.
New paper claims that the EM Drive doesn't defy Newton's 3rd law after all
Science Alert ^
| June 16, 2016
| Fiona MacDonald
Posted on 06/18/2016 6:21:05 PM PDT by 2ndDivisionVet
click here to read article
Navigation: use the links below to view more comments.
first previous 1-20, 21-40 last
To: 2ndDivisionVet
Seems to me that since energy conservation must hold that a measurement of the energy sources and sinks should be enough to validate the theory.
Am I over simplifying the problem?
21
posted on
06/18/2016 8:18:02 PM PDT
by
InterceptPoint
(Still a Cruz Fan but voting for Trump)
To: 2ndDivisionVet
Light at microwave lengths Light as in visible light frequencies or microwaves as in microwave frequencies? Both electromagnetic waves of course, but vastly different frequencies as commonly termed.
P!ss poor phrasing if it came from a scientist.
To: Blood of Tyrants; Bob
“What produces the electromagnetic waves?”
Although you could use solar cells close to a star, nukes are the real powerhouses.
Once you get outside the asteroid belt, solar cells don’t get much of a jolt. For Earth to Moon or orbital operations, they could be workhorses.
Nuclear reactors could give many orders of magnitude greater thrust to weight ratios than rocket fuel (or solar cells, in almost any scenario).
For example, a reactor the size of two five gallon buckets, could produce megawatts of electricity for ten years with exceptional reliability.
23
posted on
06/18/2016 8:30:08 PM PDT
by
BeauBo
To: BwanaNdege
Thank you. The Bill Nye mention jumped off the page at me too. I also read Boys Life, and was going to get revved up to write something, but I came upon your post. You did a better job (by far) than I was going to.
24
posted on
06/18/2016 10:01:05 PM PDT
by
Wingy
To: Blood of Tyrants
Die...if they even made it there. Not likely, considering that the average lifespan is about 80 years, and who is going to someone out there unless they are at least 21. So 92 - 21 = 71; ergo, they would be dead for about 21 years; in the truest sense of the words, they would be DOA. Ew...
25
posted on
06/18/2016 10:28:32 PM PDT
by
DennisR
(Look around - God gives countless, indisputable clues that He does, indeed, exist.)
To: 2ndDivisionVet; 1FreeAmerican; A. Patriot; AndrewC; antonia; aristotleman; Boogieman; Carilisa; ...
Electric Universe PING! For the Electromagnetic Drive that supposedly can drive a spaceship to Mars in just weeks instead of months. . . Some say by breaking the laws of physics. A new paper claims it doesn't have to break physical laws to work. PING!
If you want on or off the Electric Universe Ping List, Freepmail me.
26
posted on
06/18/2016 10:43:00 PM PDT
by
Swordmaker
(This tag line is a Microsoft insult free zone... but if the insults to Mac users continue..)
To: 2ndDivisionVet
it's also the idea that Bill Nye's solar sail is based on
Referencing Bill Nye in any serious discussion is a credibility problem for the author. Someone should write this chick and tell her who Arthur C. Clark was.
27
posted on
06/18/2016 10:43:22 PM PDT
by
farming pharmer
(www.sterlingheightsreport.com)
To: Vermont Lt
If the trip is 92 years, I am thinking you are not coming back. I'm thinking if the trip is 92 years, you are not even arriving. Some kid born on the journey is arriving.
28
posted on
06/18/2016 10:44:42 PM PDT
by
Swordmaker
(This tag line is a Microsoft insult free zone... but if the insults to Mac users continue..)
To: 2ndDivisionVet
“...it’s also the idea that Bill Nye’s solar sail is based on.” Bill Nye the science guy? He wasn’t born when the solar sail was conceived.
To: ModelBreaker
Since when does that matter in the brave new world of celebrity sciencism?
30
posted on
06/19/2016 1:53:46 AM PDT
by
thoughtomator
(Wisdom is doing due diligence before forming an opinion)
To: 2ndDivisionVet
If that's the case, what we have here is a photon drive.
They can stop researching exotic microwave cavities and just shine a really bright flashlight or microwave beam out the tail end of the spacecraft.
Photon drives have been theorized for decades, the real problem is, as always, the energy source.
31
posted on
06/19/2016 3:31:38 AM PDT
by
BitWielder1
(I'd rather have Unequal Wealth than Equal Poverty.)
To: InterceptPoint
Here’s the real problem:
A bunch of lazy scientists are worried that they might have to go out and get real jobs, so they’ve come up with anothe justification to continue funding for their phones-baloney idea that everyone knows will never work.
I hope this explains the problem to everyone’s satisfaction.
To: Swordmaker
I am thinking some kind of stasis. I know it sounds like sci-if but I read something about it a little while back. It is being worked on for medical applications ( such as induced comas.)
33
posted on
06/19/2016 5:58:55 AM PDT
by
Vermont Lt
(Ask Bernie supporters two questions: Who is rich. Who decides. In the past, that meant who died.)
To: Ken H
34
posted on
06/19/2016 6:04:17 AM PDT
by
Lurker
(Violence is rarely the answer. But when it is it is the only answer.)
To: Vermont Lt
“If the trip is 92 years, I am thinking you are not coming back.”
Depends on how fast you are going. Time would pass by less quickly as the folks in the ship go faster and faster. At least that’s the theory, and If I remember right it’s been observed.
35
posted on
06/19/2016 7:40:08 AM PDT
by
jdsteel
(Give me freedom, not more government.)
To: jdsteel
I am not a physicist. But I doubt if they will be approaching the speed of light.
36
posted on
06/19/2016 7:48:07 AM PDT
by
Vermont Lt
(Ask Bernie supporters two questions: Who is rich. Who decides. In the past, that meant who died.)
To: DennisR
It would have to be a multi-gerneration spaceship completely capable of being self sustaining and of manufacturing parts to repair it with.
37
posted on
06/19/2016 9:47:29 AM PDT
by
Blood of Tyrants
(Socialism is always just one or a thousand or a million more murders away from utopia.)
To: Blood of Tyrants
38
posted on
06/19/2016 9:53:25 AM PDT
by
going hot
(Happiness is a Momma deuce)
To: Vermont Lt
well that depends on your reference frame and relative speed, now doesnt it?
39
posted on
06/20/2016 9:10:54 AM PDT
by
wafflehouse
(RE-ELECT NO ONE !)
To: Blood of Tyrants
40
posted on
06/20/2016 1:22:05 PM PDT
by
DennisR
(Look around - God gives countless, indisputable clues that He does, indeed, exist.)
Navigation: use the links below to view more comments.
first previous 1-20, 21-40 last
Disclaimer:
Opinions posted on Free Republic are those of the individual
posters and do not necessarily represent the opinion of Free Republic or its
management. All materials posted herein are protected by copyright law and the
exemption for fair use of copyrighted works.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson