Tagged: physics

Rainbows

Our culture, and our skies, are full of rainbows, but do you know how they form? Do we all see the same rainbow? Could cyborg-enhanced mantis shrimp eyes ever see a bigger rainbow?

How gravity shapes Planet Earth

Gravity is one of the fundamental forces of nature, its invisible grip governing our planet – from the rocks inside to the seas on the surface. However, getting a grip on gravity on a global scale can only be done from space, and that’s something ESA’s GOCE satellite mission has been doing since 2009. One of the ultimate goals of GOCE is to improve our knowledge of the geoid, a kind of ‘gravity map’ of the planet, that is essential for oceanographers, surveyors, engineers and Earth-science researchers.