TIME Magazineのインスタグラム(time) - 10月24日 01時12分

Startup companies are rebooting the quest for clean energy's holy grail: fusion.

Nuclear fusion is the reverse of nuclear fission: instead of splitting atoms, you’re squashing small ones together to form bigger ones. This releases a huge burst of power too, as a fraction of the mass of the particles involved gets converted into energy. In fact, it produces three to four times as much power as nuclear fission and its fuel isn’t toxic, or fossil, or even particularly rare. If something goes wrong, fusion reactors don’t melt down; they just stop.

When asked if fusion will be the energy miracle, head of the Princeton Lab Stewart Prager says it's a question of when not if. “I think it’s inevitable. And I don’t think I’m alone in that," he says. "You can’t get commercial fusion in 10 years, but I think we’ll have commercial fusion, fusion on the grid, in the 2040s.” In this photograph by Vincent Fournier (@vincentfournier) for TIME, we see a fusion compression system in General Fusion's laboratory in Burnaby, Canada on Oct. 19.  Read the full story on TIME.com.

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