Spaceflight 🚀
Spaceflight 🚀  ·  last week

Content Warning

#Space 🌌 is a far more logical, sensible place to do #fusion, because that’s where it wants to happen anyway. In 📆 2027, we’re going to send a small part of #Sunbird in #orbit. The first #functional Sunbird will be ready four to five years later. Sunbird could deliver #cargo to #Mars 🔴 in under six months https://edition.cnn.com/science/nuclear-powered-rocket-pulsar-space-spc/index.html

#SpacecraftPropulsion#FusionPropulsion#PulsarFusion

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Winchell Chung ⚛🚀
Winchell Chung ⚛🚀  ·  6 days ago

Content Warning

@orman @spaceflight

Well, if you feed X amount of energy into your fusion reactor, and the reactor produces X - Y of fusion energy to expell the reaction mass (i.e., not breakeven) , then it would be more efficient to eliminate the middle man by removing the reactor and feeding the X amount of energy directly to the reaction mass.

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Spaceflight 🚀
Spaceflight 🚀  ·  last week

Content Warning

@nyrath “It’s very unnatural to do fusion on #Earth,” says Richard Dinan, founder and CEO of Pulsar. “Fusion doesn’t want to work in an atmosphere. Space is a far more logical, sensible place to do fusion, because that’s where it wants to happen anyway.”
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Isaac Ji Kuo
Isaac Ji Kuo  ·  last week

Content Warning

@spaceflight @nyrath That's a very small fig leaf for anyone who knows anything about vacuum chambers and fusion research, but that's not the rubes they're targeting with this scam marketing material.

The rubes who don't know a single thing about vacuum chambers or fusion research are the ones who they can scam into "investing" money.

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UnlikelyLass
UnlikelyLass  ·  last week

Content Warning

@isaackuo @spaceflight @nyrath This really bugged me when I read it. I'm no kind of expert, but fusion happens in space not because of vacuum, but because of HUGE FREAKING GRAVITY WELLS. Making fusion happen on earth is not the hard part -- witness Philo Farnsworth's Fusor and/or fusion bombs -- it's making it happen in a controlled, break-even, energy harvestable way that's hard. Which will also be hard in orbit...
60sRefugee
60sRefugee  ·  last week

Content Warning

@UnlikelyLass @isaackuo @spaceflight @nyrath At one point I thought maybe the key to dealing with bremsstrahlung losses would be simply making the fusion plasma so huge– kilometers across inside an orbital structure– that the plasma would be mostly opaque to x-rays and neutrons. There are probably a deal-breaker or three I'm unaware of why it wouldn't work.
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