Helen Webster explains the different tints and finishes of open water swimming goggles, and which you should choose for different conditions.

Albert Einstein, in 1905, presented the revolutionary idea of light quanta of energy which equals ħw, where ħ is reduced Planck's constant. There is plenty of experimental evidence on magnetic ...

Groundbreaking flat lens enables telescopes to capture color and detect light from distant stars. Credit: LSST / CC BY 4.0 Engineers have created an innovative flat lens that enhances telescopes’ ...

Original equipment quality seal for the most reliable performance Always replace in pairs to ensure a symmetric light beam from both bulbs on the road. Headlights dim over time. Headlight bulbs by ...