Enormous kites flown by robots could help power a Mars colony
7 May 2021
A proposal to power a future Mars base includes an enormous kite flown by robots, along with solar power and a battery that stores energy by compressing gas underground
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Found 314 results for drones
The world is hot enough: MI6 has started spying on climate polluters
5 May 2021
MI6 starts spying for the planet, plus what Instagram can teach us about birds and cryptocurrency meets magic mushrooms, in Feedback’s weird weekly round-up
Microwave weapon could disable a swarm of military attack drones
14 April 2021
Military drones can resist radio-jamming anti-drone devices, but a microwave weapon could take down a whole swarm at once, or disable just one with sniper-like precision
Redesign makes drones quieter and less annoying without losing thrust
7 April 2021
Drones can be loud and irritating, but by redesigning the rotors the noise they make could become more palatable without a loss of thrust
The US Navy has a mechanical battery that could power laser weapons
19 March 2021
A small mechanical battery based on spinning flywheels can deliver short bursts of high power, which the US Navy could use for energy weapons or railguns
Aircraft contrails are a climate menace. Can we rid the sky of them?
17 March 2021
The wispy cloud trails left by aircraft cause more warming than the carbon emissions from their fuel. Now there might be a simple way to stop them forming
Eagle-inspired robot flies by flapping its feather-covered wings
3 March 2021
A robot that looks like a bird, flaps its wings like a bird and flies like a bird could be used as a stealthy, camouflaged drone
How to spend a trillion dollars to fix climate change and end poverty
24 February 2021
Let’s imagine you have inherited a fortune and want to solve the world’s most pressing problems. Here’s the best way to spend your money to make a difference to climate change, disease and poverty
The US Army is building the most powerful laser weapon in the world
19 February 2021
The US Army is building a laser blaster over a million times more powerful than any used before. It is intended to take down fast-moving targets like missiles and drones
Flying robots suggest bees can’t rely on instinct to land on flowers
1 February 2021
We thought bees relied on hardwired instinct to land, but a study involving flying robots suggests that bees may also need to learn about specific surface textures before they can touch down
