Business

Uber Eats starts robot deliveries in Tokyo

"Caution: robot!" chirps the green self-driving delivery vehicle as it trundles down the street to a pork cutlet restaurant in Tokyo to pick up a meal ordered on Uber Eats.

Energy & Green Tech

Semi-transparent perovskite solar cells achieve efficiency of 21.68%

The Photovoltaics Research Department of the Korea Institute of Energy Research (KIER), working with the KIER Energy AI and Computational Science Lab, has achieved advancements in the stability and efficiency of semi-transparent ...

Telecom

A light source device to address the current data explosion

ETRI's researchers have pioneered the development of light source devices that can be utilized in mega/hyper data centers and 5G/6G mobile communication base stations. The technology innovated by the research team can transmit ...

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Light

Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.

Three primary properties of light are:

Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.

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