Nuclear Fusion remains an elusive source of clean, abundant, non-radioactive energy. This is largely because the temperatures needed to fuse elements together have traditionally required so much energy the whole reaction results in a net loss of energy. By introducing lasers to speed up the heating process, some net energy gains have been demonstrated - albeit for very short durations. But a radically different approach, which uses lasers to accelerate the movement of hydrogen through boron, holds the potential promise of being able to generate petawatts of clean, non-radioactive electricity directly from the unit.
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