Popular Science looks at the the backyard engineering that goes into an effective homemade military drone:
… Read the rest “So ISIS is using homemade drones. Here’s how they work.”To better understand ISIS drones, I spoke with an investigator at Conflict Armament
This is a turbine – a “turbopropulseur” – used as an example of a “réducteur” – a reducing gear. The one end spins a lot more than the other end… Read the rest “Science Art: Schéma de montage d’un turbopropulseur by Nerijp”
Nature looks into the future of Africa and sees a sunny outlook – at least as far as solar and wind power generation go:
… Read the rest “World Power: How Africa can leapfrog the world with renewable energy.”Africa’s population is booming faster than anywhere in
Siberian Times looks at the things that people thought were precious before people were Homo sapiens – a trove of Denisovan jewelry made from such exotic materials as ostrich eggshells… Read the rest “Caveman jewelry: Ostrich eggs in Siberia?”
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