What is causing slow solar wind?

In the 17th century, the great maritime nations were vying to solve a puzzle that had confounded philosophers for many centuries: how to determine exact positions on the Earth’s surface. And in Britai

The worst time to look at the Moon is when it’s full, right? Not necessarily. It’s true that at full Moon, sunlight hits the surface head-on, flattening the appearance of its rugged landscape of deep

Renewable energy expert David Hilton explains the purpose of a solar panel inverter and why it’s one of the most important parts of your energy set-up

Astronomers love a challenge. They place their observatories on the highest mountains, in the driest deserts, on the coldest ice shelves, beneath the deepest oceans, in orbit around Earth and the Sun,

Three transatlantic cruisers share valuable lessons with Ali Wood about their onboard power setups (and where they went wrong)

Andrew Simpson looks at pendulum servo self-steering gears, and describes how to get the best out of them