Engineering

Trajectoids: Creating a shape that rolls along a desired path

Normally, when we think of a rolling object, we tend to imagine a torus (like a bicycle wheel) or a sphere (like a tennis ball) that will always follow a straight path when rolling. However, the world of mathematics and science ...

Internet

Proton using VPN sign-ups to spot attacks on democracy

Internet privacy company Proton announced Wednesday a new VPN Observatory, tracking demand for its services to detect attacks on free speech in countries like Russia and Iran before they hit the headlines.

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Proton

The proton is a subatomic particle with an electric charge of +1 elementary charge. It is found in the nucleus of each atom but is also stable by itself and has a second identity as the hydrogen ion, 1H+. It is composed of 3 even more fundamental particles comprising two up quarks and one down quark.

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