Search | 91av

Found 515 results for drones

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

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

What’s next for the Mars Perseverance rover? Your questions answered

19 February 2021

Now that NASA’s Perseverance rover has landed safely on Mars, it will start taking samples and release the Ingenuity helicopter to test flying drones on other planets

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

Insect brains will teach us how to make truly intelligent robots

16 February 2021

We need a revolution in artificial intelligence and learning from insects will help us achieve it, says James Marshall

Dragonflies do a backwards roll to fly upright – even when unconscious

10 February 2021

To get out of an upside-down position, dragonflies do a backwards roll to stabilise their flight – even when they’re unconscious, and if their wings are propped open, they do it when they’re dead

Bats soar to heights of 1600 metres by riding late night winds

4 February 2021

By fitting bats with GPS collars we have discovered that the nocturnal fliers seek out slopes where late night winds are swept upwards, carrying them high into the air

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