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textEmDrive / Warp Update? (self.Futurology)

samsdeadfishclub が 投稿

I remember back in May reading a lot about the EmDrive at NASA. Does anyone have any updates on the testing?

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[–]hms11 15ポイント16ポイント  (7子コメント)

As mentioned, /r/Emdrive is a pretty good handle on this thing. But a rough summary:

-We are still not sure that thrust is actually happening, but it appears that some thrust is most likely being produced (low thrust levels combined with different experiments by different groups has left some ambiguity.

-If thrust is happening, we are definitely not sure why it is happening. There are a multitude of theories, some ridiculous, some sound reasonable but are definitely outside of "conventional" theory and some make use of mostly conventional theories that are way, way above my head.

-We all REALLY hope it is for real. If this thing is what has been claimed by Robert Sawyer (essentially being capable of 1g of acceleration in it's "2nd Gen" form). Then the world changes, tomorrow. Wanna go to the moon? It's 4 hours away. Mars? how about 7 days? Pluto? 2 weeks. Also, hovering cars? Done! Space Elevator? Done!

The need to rely on Earth for resources is over. We can go anywhere in the solar system now, and fast.

[–]HW90 [スコア非表示]  (3子コメント)

From what I understand we'd still need to find the right power sources to do it as the energy requirements are likely to be in the 10s if not 100s of kWs. TWR of 1 for an engine on Earth is also fairly useless and we'll likely need to wait a couple of more generations for it to show it's true potential.

[–]hms11 [スコア非表示]  (0子コメント)

Power would solve itself with a drive of this potential.

I imagine all the negativity of nukes in space would disappear when we have the ability to go anywhere, and FAST. A small nuclear reactor, similar to a nuke sub one, would make PLENTY of power, be compact, and probably work well in a space environment once we could figure out what to do with all the heat.

This kind of tech would have us colonizing a good portion of our region of the galaxy within a couple hundred years if it was/is legit.

[–]oh_the_humanity [スコア非表示]  (1子コメント)

I was under the impression that an RTG like source would take care of the power needs.

[–]HW90 [スコア非表示]  (0子コメント)

Not even close, for one RTGs use a lot of rare material, for example making another of the MMRTGs used on Curiosity would use up one third of the US's stockpile. They also produce hardly any power, hundreds of watts and when gen1 uses that much to produce micronewtons of thrust it would require insane improvements in gen2 for it to manage 1g+.

[–]samsdeadfishclub[S] [スコア非表示]  (0子コメント)

Thanks. This is helpful.

[–]rooood [スコア非表示]  (0子コメント)

essentially being capable of 1g of acceleration in it's "2nd Gen" form

1g as in 1 gram or 1G (g-force)?

[–]_CapR_Crypto Enthusiast [スコア非表示]  (0子コメント)

Wanna go to the moon? It's 4 hours away. Mars? how about 7 days? Pluto? 2 weeks.

I hate to be nitpicky but the travel time depends on what point those planets are in their orbits around the sun.

[–]heavenman0088 6ポイント7ポイント  (0子コメント)

/r/Emdrive has fan updates and tracks most of its news.