We rarely think about how liquids flow—why honey is thick, water is thin or how molten plastic moves through machines. But ...

Vacuum is often thought of as empty, but in fact it is teeming with fleeting energy fluctuations—virtual photons popping in ...

Structural materials are materials used or studied primarily for their mechanical properties, as opposed to their electronic, magnetic, chemical or optical characteristics. This can include a ...

When invisible dark matter spins, it may form clumps of "vortexes" that stretch across space, forming the cosmic web that ...

Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200 F, B-3001 Leuven, Belgium, Universität Würzburg, Institut für Organische Chemie, Am Hubland, D-97074 Würzburg, Germany, and ...