Author Topic: EM Drive opens up new possibilities for space flight  (Read 2261 times)

Everyone's favorite physical lawbreaker from last year, the EM Drive, recently went through some tests that have eliminated a lot of doubts about its usefulness.

If you haven't heard of it, the Electromagnetic (EM) Drive is an experimental thrust module that has been undergoing research and tests for several years, due to its seemingly physics-breaking capabilities. It turns electrical energy into microwaves, which bounce around in a container to generate thrust...which sounds like complete bullstuff science you'd find on a "troll physics" image, and that's exactly why the science community is so interested in it: because the law of conservation of momentum says it shouldn't work. It was assumed that outside forces must be affecting it in some way, and yet after being tested just recently by NASA in a vacuum, it performed exactly the same.

Such a concept could have a huge impact on space flight and technology. The International Space Station could be kept in orbit with less cost and effort by easily counteracting orbital decay. Satellites could be smaller and fuel-less. A ship could reach the moon in as little as 4 hours, Mars in 70 days, and Alpha Centauri in 130 years (the last of which may sound like a lot, but our current level of propulsion technology would require a few thousand years to make the trip) traveling at 9.4% the speed of light.

And speaking of the speed of light, this research may have also found a lead in warp drive technology...

tl;dr -- Seemingly impossible propulsion system actually works in a vacuum, is far superior to what we've got now

This should all be taken with a grain of salt but I can't help getting super hyped.


It's certainly crazy, but I hope research in this leads to some amazing results.

tbh i was expecting theonion.com to appear in the bottom of my browser when i moused over the link so i was prepared to break my own face after i read your entire post.

from this article, it appears china is also working on this. maybe they should be working on their labor laws that are causing their air to turn black though (i guess so i never went to china but everyone tells me it's hard to breathe in the cities in some areas. yes i am fully aware of the economic dependencies of certain countries and china)

As a non-space enthusiast and non-scientist, i still find this pretty fascinating

I wonder what kind of impacts this could have in the near future

I'm not the only space-head! WHOOOOO

due to its seemingly physics-breaking capabilities. It turns electrical energy into microwaves, which bounce around in a container to generate thrust...which sounds like complete bullstuff science you'd find on a "troll physics" image, and that's exactly why the science community is so interested in it: because the law of conservation of momentum says it shouldn't work.
Isn't a solar sail the same concept? Taking electromagnetic radiation and turning it into thrust?

The way they'd be used is way different obviously, but I don't understand why exactly it shouldn't be possible.

Isn't a solar sail the same concept? Taking electromagnetic radiation and turning it into thrust?

The way they'd be used is way different obviously, but I don't understand why exactly it shouldn't be possible.
because it's like trying to push your car forward by pushing on the dashboard while you're inside the car
it just doesn't work like that
I'd still like an official report from nasa on the stuff, I'm not gonna trust anything that isn't a nasa official on this.

loving radical

space travel just got cooler

because it's like trying to push your car forward by pushing on the dashboard while you're inside the car
it just doesn't work like that
I guess that giant cone doesn't have an open back then.

because it's like trying to push your car forward by pushing on the dashboard while you're inside the car
it just doesn't work like that

That's...kinda what's going on here, actually

That's why this is so bizarre

I'd still like an official report from nasa on the stuff, I'm not gonna trust anything that isn't a nasa official on this.

Well, the article I linked is a highly-regarded source and had a NASA engineer (Paul March) posting about this on their forums, but I can understand the desire for a direct report

This is actually pretty cool. I knew there were electrical engines, but I was under the impression they sucked stuff and were only useful if you let them accumulate speed over years. Apparently my info came from extremely outdated sources.

Apparently my info came from extremely outdated sources.
Not really. Ion engines are a thing that are used in exactly that scenario.

this is loving rad.

Not really. Ion engines are a thing that are used in exactly that scenario.
That might have been what they were referencing then.