Walking on the moon – underwater

It's one of the deepest 'swimming pools' in Europe, but for three years has been helping preparations for a human return to the moon. ESA's Neutral Buoyancy Facility at the European Astronaut Centre has been the site of the ...

Backswimmers use buoyancy aid like a gill

Ever since he can remember, Karl Jones has been fascinated by the animals that live in streams. 'I grew up next to a river in the Adelaide Hills where I spent many hours catching the creatures that live there', he recalls; ...

Paramecia need Newton for navigation

While single-celled paramecia have the ability to respond to certain external stimuli, they appear not to use that sensory system for simple navigation, new research finds. The work suggests that the ability of paramecia ...

Cassini data from Titan indicate a rigid, weathered ice shell

An analysis of gravity and topography data from Saturn's largest moon, Titan, has revealed unexpected features of the moon's outer ice shell. The best explanation for the findings, the authors said, is that Titan's ice shell ...

Disseminating the kilogram, no strings attached

(Phys.org)—The impending redefinition of the kilogram presents a weighty dilemma. Methods to be used to realize the redefined kilogram are based on the Planck constant and the Avogadro constant respectively and realize ...

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