Posted on 03/04/2021 5:34:00 PM PST by MtnClimber
SPARC could be the first fusion reactor to produce net energy—10 years before ITER and in a machine 10 times smaller.
A startup chasing the dream of plentiful, safe, carbon-free electricity from fusion, the energy source of the Sun, has settled on a site, timetable, and key technology for building its compact reactor. Flush with more than $200 million from investors, including Bill Gates’s Breakthrough Energy, 3-year-old Commonwealth Fusion Systems announced today that later this year it will start to build its first test reactor, dubbed SPARC, in a new facility in Devens, Massachusetts, not far from its current base in Cambridge. The company says the reactor, which would be the first in the world to produce more energy than is needed to run the reaction, could fire up as soon as 2025.
Commonwealth and a rival U.K. company have also chosen the technology they think will let them leap ahead of the giant, publicly funded ITER reactor under construction in France
SNIP
Fusion reactors burn an ionized gas of hydrogen isotopes at more than 100 million degrees Celsius—so hot that the plasma must be contained by a mesh of magnetic fields so it doesn’t melt the reactor walls. At ITER, sufficiently powerful fields are achieved using niobium alloy superconducting wires that can carry huge currents without resistance through magnet coils. But such low-temperature superconductors must be chilled to 4° above absolute zero, which requires bulky and expensive liquid helium cooling. And there’s a limit to the amount of current the niobium wires can carry, forcing ITER to adopt huge magnets with many wire turns to generate the needed fields. ITER’s largest magnets are 24 meters across, contributing to the reactor’s $20 billion price tag.
(Excerpt) Read more at sciencemag.org ...
I haven’t posted on FR from Rossi since 3 months after he came around. Either start posting scientific evidence against cold fusion or fuq off. I was posting pro cold fusion articles before Rossi came on the scene, and I said I would be posting pro cold fusion articles after he was gone. So fuq off.
“It’s enough fuel to enable the fire to reach the next target “
Nope.
Yep.
“Either start posting scientific evidence against cold fusion or fuq off.”
You are hijacking this thread. If you want to discuss cold fusion start your own thread.
This is a cold fusion thread because the heat required is less than the heat generated at ITER. It is a lukewarm 100Million degree rather than several billion degree temperature thread.
Feel free to ask the mods to determine the difference.
That’s a lot of damage.
A few dozen hydrogen bombs have been set off in the atmosphere, and many more underground. They generated temperatures of the same order of magnitude of those you are concerned about, on the ground, high in the atmosphere, and under the earth.
The idea that the would touch off an atomic conflagration of the atmosphere was analyzed in some detail by Leo Szilard, Hans Bethe, Edward Teller, and others, back in the late '40s and early '50s. They predicted no such phenomenon would occur (actually they told President Truman that the probability was very small). There was in fact no such ignition of the atmosphere. Is that not sufficient evidence for you?
Sorry I didn’t reply to your other ping, got a bit of a health issue going on.
Regarding caucus status, I wasn’t involved and have no clue, it was between JR and the freeper who runs those threads.
IMHO trolling aholery should not be allowed on any thread. And JR made a statement about that I think yesterday, I’ll try to find it and post it.
People can debate or have varying viewpoints without trollery; if they choose the latter, they should have their own thread!
Yes that is sufficient for me.
What would be the damage radius of such a heat outbreak?
Those islands where H-bombs were tested , they were utterly destroyed as well as ships surrounding them. That was purely from the heat, not the gamma radiation afterwards. Loooks to me about a 2-3 mile radius.
“freeper who runs those threads”
Who is that?
Check your freepmail.
Are you willing to stay off our Cold Fusion threads?
“Are you willing to stay off our Cold Fusion threads?”
I agree to stay on topic.
Then your answer is NO. Kiss off.
Castle Bravo was about 15 megatons.
The USSR set off a considerably bigger H-bomb in 1961; the Tsar Bomba released around 50 megatons; it was detonated about 2.5 miles above the ground and its fireball was more than five miles in diameter. It destroyed buildings 50 miles away.
It did not set the atmosphere on fire, although the shock wave it released circled the world three times.
And you!
If you don’t like the subject or topic of the thread to the point you become abusive or trollish, stay off it.
Do not harass or pester the mods.
Then you agree not to harass us on Cold Fusion threads.
Good deal.
“Then you agree not to harass us on Cold Fusion threads.”
Since there are not any cold fusion threads why do you ask?
just click on the keyword ‘cold fusion’ to see the threads. You have already begun re-polluting them.
Thanks for inviting me!
One of the first comments to you:
“You should log onto one of those qanon threads and throw the same snark around. That is your future.”
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.