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Gadgets & Gizmos: Jet fuel from sunlight, tech mattresses & spider micro-cranes
Steve Caplin tells Simon Rose of plans to create jet fuel from sunlight. Students have built an e-car that sucks CO2 from the air, there's a tech mattress to help with sleep, Google's new AR glasses, a way to use dead spiders to lift tiny objects, a wearable fitness tracker that detects Covid 2 days before symptoms appear and a faster, more efficient way to dig tunnels - with a big catch.
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