▲ 827 ▼ Nuclear fusion reactor in South Korea runs at 100 million degrees C for a record-breaking 48 seconds (www.livescience.com) submitted 2 years ago by m3t00@lemmy.world [M] to c/science@lemmy.world 258 comments fedilink hide all child comments 48 seconds. I predict a glut of helium. balloons for everyone
[–] Jambalaya@lemmy.zip 22 points 2 years ago (1 child) Fusion uses hydrogen and produces helium permalink fedilink source parent hideshow 2 child comments replies: [–] n3m37h@lemmy.dbzer0.com 7 points 2 years ago* (2 children) They use liquid helium to cool the super magnets... permalink fedilink source parent hideshow 4 child comments replies: [–] Strykker@programming.dev 17 points 2 years ago Sure, but they don't consume it, and let it just boil off. They have massive refrigerant setups to bring it down to temp and keep it there. permalink fedilink source parent [–] HornyOnMain@fedia.io 10 points 2 years ago* (1 child) Sure, but why does that mean they must be losing the helium each time? I don't know anything about liquid helium and super conductors, but I know I don't need to replace my radiator fluid just because it cooled my engine. permalink fedilink source parent hideshow 2 child comments replies: [–] n3m37h@lemmy.dbzer0.com 0 points 2 years ago (1 child) Once used, it need to be cooled down to -252c to be reused. Not like a closed loop of oil permalink fedilink source parent hideshow 2 child comments replies: [–] HornyOnMain@fedia.io 16 points 2 years ago (1 child) Alright, did some research, first off you're wrong about this being the reason even if this was a plausible reason. The real reason is the ash and heat divertors failed. Second, you don't even need liquid helium for super conduction. Here's a few closed loop helium gas coolers that get to 10 kelvin. They need to be refilled on the scale of years, not from a single test. https://www.arscryo.com/closed-cycle-cryocoolers https://stirlingcryogenics.com/products/closed-loop-helium-gas-cooling-system/ I get you care deeply about helium loss but this is the last thing you should be accidentally spreading misinformation about. This process literally creates more helium then it uses. permalink fedilink source parent hideshow 2 child comments replies: [+] n3m37h@lemmy.dbzer0.com -9 points 2 years ago (2 children) I didn't say they did, just said probably, I'm just a stupid redneck. Oh and how do we capture said multi thousand deg helium? permalink fedilink source parent hideshow 4 child comments replies: [–] barsoap@lemm.ee 2 points 2 years ago* Oh and how do we capture said multi thousand deg helium? By cooling down the air that contains it until it's liquid, then distilling that. Actually a standard process though usually you freeze down natural gas not just random air, it's quite helium-rich. permalink fedilink source parent [–] Gabu@lemmy.world 1 point 2 years ago I’m just a stupid redneck. You got that right, at least permalink fedilink source parent
[–] n3m37h@lemmy.dbzer0.com 7 points 2 years ago* (2 children) They use liquid helium to cool the super magnets... permalink fedilink source parent hideshow 4 child comments replies: [–] Strykker@programming.dev 17 points 2 years ago Sure, but they don't consume it, and let it just boil off. They have massive refrigerant setups to bring it down to temp and keep it there. permalink fedilink source parent [–] HornyOnMain@fedia.io 10 points 2 years ago* (1 child) Sure, but why does that mean they must be losing the helium each time? I don't know anything about liquid helium and super conductors, but I know I don't need to replace my radiator fluid just because it cooled my engine. permalink fedilink source parent hideshow 2 child comments replies: [–] n3m37h@lemmy.dbzer0.com 0 points 2 years ago (1 child) Once used, it need to be cooled down to -252c to be reused. Not like a closed loop of oil permalink fedilink source parent hideshow 2 child comments replies: [–] HornyOnMain@fedia.io 16 points 2 years ago (1 child) Alright, did some research, first off you're wrong about this being the reason even if this was a plausible reason. The real reason is the ash and heat divertors failed. Second, you don't even need liquid helium for super conduction. Here's a few closed loop helium gas coolers that get to 10 kelvin. They need to be refilled on the scale of years, not from a single test. https://www.arscryo.com/closed-cycle-cryocoolers https://stirlingcryogenics.com/products/closed-loop-helium-gas-cooling-system/ I get you care deeply about helium loss but this is the last thing you should be accidentally spreading misinformation about. This process literally creates more helium then it uses. permalink fedilink source parent hideshow 2 child comments replies: [+] n3m37h@lemmy.dbzer0.com -9 points 2 years ago (2 children) I didn't say they did, just said probably, I'm just a stupid redneck. Oh and how do we capture said multi thousand deg helium? permalink fedilink source parent hideshow 4 child comments replies: [–] barsoap@lemm.ee 2 points 2 years ago* Oh and how do we capture said multi thousand deg helium? By cooling down the air that contains it until it's liquid, then distilling that. Actually a standard process though usually you freeze down natural gas not just random air, it's quite helium-rich. permalink fedilink source parent [–] Gabu@lemmy.world 1 point 2 years ago I’m just a stupid redneck. You got that right, at least permalink fedilink source parent
[–] Strykker@programming.dev 17 points 2 years ago Sure, but they don't consume it, and let it just boil off. They have massive refrigerant setups to bring it down to temp and keep it there. permalink fedilink source parent
[–] HornyOnMain@fedia.io 10 points 2 years ago* (1 child) Sure, but why does that mean they must be losing the helium each time? I don't know anything about liquid helium and super conductors, but I know I don't need to replace my radiator fluid just because it cooled my engine. permalink fedilink source parent hideshow 2 child comments replies: [–] n3m37h@lemmy.dbzer0.com 0 points 2 years ago (1 child) Once used, it need to be cooled down to -252c to be reused. Not like a closed loop of oil permalink fedilink source parent hideshow 2 child comments replies: [–] HornyOnMain@fedia.io 16 points 2 years ago (1 child) Alright, did some research, first off you're wrong about this being the reason even if this was a plausible reason. The real reason is the ash and heat divertors failed. Second, you don't even need liquid helium for super conduction. Here's a few closed loop helium gas coolers that get to 10 kelvin. They need to be refilled on the scale of years, not from a single test. https://www.arscryo.com/closed-cycle-cryocoolers https://stirlingcryogenics.com/products/closed-loop-helium-gas-cooling-system/ I get you care deeply about helium loss but this is the last thing you should be accidentally spreading misinformation about. This process literally creates more helium then it uses. permalink fedilink source parent hideshow 2 child comments replies: [+] n3m37h@lemmy.dbzer0.com -9 points 2 years ago (2 children) I didn't say they did, just said probably, I'm just a stupid redneck. Oh and how do we capture said multi thousand deg helium? permalink fedilink source parent hideshow 4 child comments replies: [–] barsoap@lemm.ee 2 points 2 years ago* Oh and how do we capture said multi thousand deg helium? By cooling down the air that contains it until it's liquid, then distilling that. Actually a standard process though usually you freeze down natural gas not just random air, it's quite helium-rich. permalink fedilink source parent [–] Gabu@lemmy.world 1 point 2 years ago I’m just a stupid redneck. You got that right, at least permalink fedilink source parent
[–] n3m37h@lemmy.dbzer0.com 0 points 2 years ago (1 child) Once used, it need to be cooled down to -252c to be reused. Not like a closed loop of oil permalink fedilink source parent hideshow 2 child comments replies: [–] HornyOnMain@fedia.io 16 points 2 years ago (1 child) Alright, did some research, first off you're wrong about this being the reason even if this was a plausible reason. The real reason is the ash and heat divertors failed. Second, you don't even need liquid helium for super conduction. Here's a few closed loop helium gas coolers that get to 10 kelvin. They need to be refilled on the scale of years, not from a single test. https://www.arscryo.com/closed-cycle-cryocoolers https://stirlingcryogenics.com/products/closed-loop-helium-gas-cooling-system/ I get you care deeply about helium loss but this is the last thing you should be accidentally spreading misinformation about. This process literally creates more helium then it uses. permalink fedilink source parent hideshow 2 child comments replies: [+] n3m37h@lemmy.dbzer0.com -9 points 2 years ago (2 children) I didn't say they did, just said probably, I'm just a stupid redneck. Oh and how do we capture said multi thousand deg helium? permalink fedilink source parent hideshow 4 child comments replies: [–] barsoap@lemm.ee 2 points 2 years ago* Oh and how do we capture said multi thousand deg helium? By cooling down the air that contains it until it's liquid, then distilling that. Actually a standard process though usually you freeze down natural gas not just random air, it's quite helium-rich. permalink fedilink source parent [–] Gabu@lemmy.world 1 point 2 years ago I’m just a stupid redneck. You got that right, at least permalink fedilink source parent
[–] HornyOnMain@fedia.io 16 points 2 years ago (1 child) Alright, did some research, first off you're wrong about this being the reason even if this was a plausible reason. The real reason is the ash and heat divertors failed. Second, you don't even need liquid helium for super conduction. Here's a few closed loop helium gas coolers that get to 10 kelvin. They need to be refilled on the scale of years, not from a single test. https://www.arscryo.com/closed-cycle-cryocoolers https://stirlingcryogenics.com/products/closed-loop-helium-gas-cooling-system/ I get you care deeply about helium loss but this is the last thing you should be accidentally spreading misinformation about. This process literally creates more helium then it uses. permalink fedilink source parent hideshow 2 child comments replies: [+] n3m37h@lemmy.dbzer0.com -9 points 2 years ago (2 children) I didn't say they did, just said probably, I'm just a stupid redneck. Oh and how do we capture said multi thousand deg helium? permalink fedilink source parent hideshow 4 child comments replies: [–] barsoap@lemm.ee 2 points 2 years ago* Oh and how do we capture said multi thousand deg helium? By cooling down the air that contains it until it's liquid, then distilling that. Actually a standard process though usually you freeze down natural gas not just random air, it's quite helium-rich. permalink fedilink source parent [–] Gabu@lemmy.world 1 point 2 years ago I’m just a stupid redneck. You got that right, at least permalink fedilink source parent
[+] n3m37h@lemmy.dbzer0.com -9 points 2 years ago (2 children) I didn't say they did, just said probably, I'm just a stupid redneck. Oh and how do we capture said multi thousand deg helium? permalink fedilink source parent hideshow 4 child comments replies: [–] barsoap@lemm.ee 2 points 2 years ago* Oh and how do we capture said multi thousand deg helium? By cooling down the air that contains it until it's liquid, then distilling that. Actually a standard process though usually you freeze down natural gas not just random air, it's quite helium-rich. permalink fedilink source parent [–] Gabu@lemmy.world 1 point 2 years ago I’m just a stupid redneck. You got that right, at least permalink fedilink source parent
[–] barsoap@lemm.ee 2 points 2 years ago* Oh and how do we capture said multi thousand deg helium? By cooling down the air that contains it until it's liquid, then distilling that. Actually a standard process though usually you freeze down natural gas not just random air, it's quite helium-rich. permalink fedilink source parent
[–] Gabu@lemmy.world 1 point 2 years ago I’m just a stupid redneck. You got that right, at least permalink fedilink source parent