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Flame plasma pyrolysis process turns spent coffee grounds into biofuel

Humans drink approximately 400 billion cups of coffee annually, leaving behind 18 million tonnes of wet coffee grounds, roughly the weight of the three Great Pyramids of Giza. These grounds, which mostly end up in landfill, have the potential to be fuel. However, their moisture poses a significant challenge. Scientists at the Korea Institute of Geoscience and Mineral Resources (KIGAM) have devised a technique to turn still-wet coffee grounds into high-grade biofuel in as little as 90 seconds.

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Category: Energy, Engineering

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Electromagnetic buoy paralyzes jellyfish to prevent painful stinging

There are a few things more painful than going to the beach on a hard-earned vacation, only to get stung by a jellyfish. The horror! Thankfully, this occurrence may soon be a thing of the past. Researchers from the Universitat Politècnica de València (UPV) and the University of Alicante have developed an anti-jellyfish buoy that prevents the animal from reaching swimming areas.

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Category: Marine, Transport

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Titanium EDC multitool packs over 40 functions into a 'card'

Gear brand ThreePeters has somehow managed to shrink an entire toolbox of EDC equipment into a card that you can simply slip into your pocket for on-the-go fixes, camping, and DIY work. And with its titanium build and thoughtful design, it should hold up for years to come.

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Category: Knives and Multitools, Gear, Outdoors

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World's first narrow-gauge hydrogen train built for Italy's historic tracks

Swiss locomotive manufacturer Stadler and Sardinian regional operator ARST (Azienda Regionale Sarda Trasporti) have unveiled the world's first hydrogen-powered train built for narrow-gauge track. That's a genuine first because the narrower track imposes axle-load limits so tight that no existing hydrogen train could fit, and an entirely new vehicle had to be designed from scratch.

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Category: Transport

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