Engineering

Zero-emission ship nears finish of round-the-world voyage

A ship powered by renewable energy, including hydrogen produced onboard, is docked in the southeastern US state of Florida this week as it prepares to finish the last leg of a voyage around the world.

Energy & Green Tech

Battery technology achieves record high sodium-metal cycling rates

While lithium-ion batteries currently dominate the industry, serious concern remains about the limited availability of lithium used in these batteries. Conversely, sodium-ion batteries provide a more sustainable alternative ...

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Liquid

Liquid is one of the principal states of matter. A liquid is a fluid that has the particles loose and can freely form a distinct surface at the boundaries of its bulk material. The surface is a free surface where the liquid is not constrained by a container.

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