Read the Beforeitsnews.com story here. Advertise at Before It's News here.
Profile image
By Universe Today (Reporter)
Contributor profile | More stories
Story Views
Now:
Last hour:
Last 24 hours:
Total:

Don’t Be Surprised if EmDrive Experiments Never Work

% of readers think this story is Fact. Add your two cents.


Every few years the “EmDrive”, a proposed method of generating rocket thrust without any exhaust, hits the news. Each time, everyone asks: could this be it? Could this be the technological leap to revolutionize spaceflight?

Don’t hold your breath.

Here’s the basic idea behind the EmDrive. You take a chamber with a funky shape (usually narrower on one end than the other). You let a bunch of microwave radiation bounce around inside it. Accordingly to some – ahemcontroversial experiments, the device begins to move, with no emission from the drive at all. This runs counter to the usual rocket setup, which requires the expulsion of a propellent to push a spacecraft around.

Proponents of the EmDrive claim that it represents a revolution in physics and technology, a great leap for mankind that frees us from the shackles of…well, needing a propellent. Sure, the claimed thrust is incredibly tiny – not even enough to push a piece of paper – but anything other than 0 would be a big deal.

Big deal indeed. Assuming that the EmDrive works as advertised, it completely violates known physics. And not just in a small way – it breaks one of the most important, fundamental, cornerstone aspects of physics: conservation of momentum.

Things can’t just start moving on their own. According to literally everything we know about physics, the EmDrive can’t just go all by itself. It has to push something out in the opposite direction, or react to something else, in order to generate thrust.

Momentum conservation isn’t just a cool idea. It underscores almost the entirety of modern physics. Everything from quantum field theory to general relativity are really just expressions of conservation of momentum in specialized contexts. Conservation of momentum has been experimentally confirmed countless times in everything from high-energy particle colliders to the expansion of the universe itself.

Yeah, sure, momentum conservation could be broken in a new, exotic case that we haven’t encountered before. But it’s unlikely to show up as a tiny thrust in an EmDrive, where the observed thrust is so small that there many other, more plausible, explanations: microwave leakage, reactions with the Earth’s magnetic field, miscalibration, etc.

We may someday find that we need to update our understanding of momentum conservation. But not today.

The post Don’t Be Surprised if EmDrive Experiments Never Work appeared first on Universe Today.



Source: https://www.universetoday.com/151834/dont-be-surprised-if-emdrive-experiments-never-work/


Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world.

Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.

"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.

Please Help Support BeforeitsNews by trying our Natural Health Products below!


Order by Phone at 888-809-8385 or online at https://mitocopper.com M - F 9am to 5pm EST

Order by Phone at 888-388-7003 or online at https://www.herbanomic.com M - F 9am to 5pm EST

Order by Phone at 888-388-7003 or online at https://www.herbanomics.com M - F 9am to 5pm EST


Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!

HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation

Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.

MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)
Oxy Powder - Natural Colon Cleanser!  Cleans out toxic buildup with oxygen! 
Nascent Iodine - Promotes detoxification, mental focus and thyroid health.
Smart Meter Cover -  Reduces Smart Meter radiation by 96%!  (See Video)

Immusist Beverage Concentrate - Proprietary blend, formulated to reduce inflammation while hydrating and oxygenating the cells.

Report abuse
Loading...

Comments

Your Comments
Question   Razz  Sad   Evil  Exclaim  Smile  Redface  Biggrin  Surprised  Eek   Confused   Cool  LOL   Mad   Twisted  Rolleyes   Wink  Idea  Arrow  Neutral  Cry   Mr. Green

MOST RECENT
Load more ...

SignUp

Login

Newsletter

Email this story
Email this story

If you really want to ban this commenter, please write down the reason:

If you really want to disable all recommended stories, click on OK button. After that, you will be redirect to your options page.