Engineering

Smart windows regulate right light in the greenhouse

Greenhouses can allow the growth of high quality crops in otherwise unproductive areas. Important, as the world population is growing and the land area appropriate for farming is limited. One thing that is still difficult ...

Business

Air France gets EU green light for 4 bn euro aid

The EU authorised the French government on Tuesday to double its stake in Air France and inject up to four billion euros into the struggling airline whose revenues have been hit by the pandemic-induced drop in passenger traffic.

Business

Air Canada, Transat call off merger deal

Air Canada has called off its planned takeover of tour operator Transat over EU regulatory hurdles, they announced Friday—scuppering a deal that would have created a domestic giant with a 60 percent share of the Canadian ...

Electronics & Semiconductors

Smart glass has a bright future

Buildings are responsible for 40 percent of primary energy consumption and 36 percent of total CO2 emissions. And, as we know, CO2 emissions trigger global warming, sea level rise, and profound changes in ocean ecosystems. ...

Engineering

Scientists design 'smart' device to harvest daylight

A team of Nanyang Technological University, Singapore (NTU Singapore) researchers has designed a 'smart' device to harvest daylight and relay it to underground spaces, reducing the need to draw on traditional energy sources ...

Electronics & Semiconductors

Renewable energy, new perspectives for photovoltaic cells

In the future, photovoltaic cells could be 'worn' over clothes, placed on cars or even on beach umbrellas. These are just some of the possible developments from a study published in Nature Communications by researchers at ...

Hi Tech & Innovation

Support system to help the visually impaired navigate tactile paving

Sight is by far the sense that we humans use the most when navigating an environment. When those who are blind or visually impaired walk alone, they put themselves at great risk of falling or colliding with obstacles, especially ...

Consumer & Gadgets

'Doodles of light' in real time mark leap for holograms at home

Researchers from Tokyo Metropolitan University have devised and implemented a simplified algorithm for turning freely drawn lines into holograms on a standard desktop CPU. They dramatically cut down the computational cost ...

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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.

This text uses material from Wikipedia, licensed under CC BY-SA