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Video: Fascinating 'monocopter' drone can change its wingspan during flight

June 07, 2024
Multirotor drones may get all the glory, but fully rotating "monocopters" are much more energy-efficient. A new one distinguishes itself further, as it can squeeze through narrow spaces or drop like a falcon by reducing its wingspan while in flight.

HotTwist water-based thermal system cuts heating bills by 75%

June 07, 2024
Water can hold a huge amount of thermal energy, and a new system to tap into this is being trialed in Scotland. A startup called SeaWarm uses heat stored in bodies of water for buildings, pulling four times more heat out than electricity used.

Oral insulin drops under the tongue could replace diabetes injections

June 07, 2024
Diabetics sick of daily injections may have renewed hope for a less invasive alternative. Scientists at the University of British Columbia (UBC) have developed a new delivery method for insulin where users just place a few drops under their tongue.

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