How to make oxygen from moondust

IF PEOPLE ARE to travel extensively in space and set up bases on astronomical objects such as the Moon and Mars then they will need to make or find out there the things required to support life—including food, water and breathable air. Researchers are already working on ways to grow food in space, and icy […]

A research team builds robots from living cells

ROBOTS COME in all shapes and sizes. Some are humanoid. Others resemble animals. Many are just a jumble of arms slaving away on a production line. But one thing all robots have in common is that they are mechanical, not biological devices. They are built from materials like metal and plastic, and stuffed with electronics. […]

New Zealand was once a land of giants

Christchurch SQUAWKZILLA, AS HE (or possibly she) has come to be known, is not the sort of parrot that would sit on your shoulder while you cooed “pretty polly”. Instead, this huge flightless bird (weighing around 7kg and about a metre tall) would probably have pecked a chunk out of you with its massive beak. […]

An emergency landing system that passengers can activate

ON NOVEMBER 9TH 2018 a Piper Dakota light aircraft flying over Iowa broadcast a distress call. The pilot seemed to have suffered a heart attack. One of the other three people on board, a student aviator, had taken over the controls, but to no avail. The plane crashed shortly afterwards, killing all four. How often […]

Giant 3D printers for making boats, bridges, buildings and rockets

BOAT BUILDING is a long-winded and tedious business, even when what is going down the slipway is a small craft made from modern materials such as fibreglass, rather than something nailed together out of planks of wood. Construct a mould. Build up layers of resin and glass fibre inside that mould. Extract the completed structure […]