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How a hydrogen explosion led a teenage founder to become Sequoia’s first defense tech investment
As Sequoia Capital's first defense tech investment, Mach Industries is an industry darling, raising over $80 million since its founding in 2023. Its
But a few months before landing a seed investment from Sequoia in the summer of 2023, Mach had a major setback: a hydrogen gun prototype it was building exploded, sending hundreds of pieces of shrapnel flying and injuring a team member, Forbes first reported. Now, Mach is building different kinds of weapons altogether, such as a new cruise missile and a bomb called “Glide” that can be fired from the edge of space. His investigative reporting has led to U.S. government sanctions against four tech companies, including China’s largest AI firm.
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