They use an electric arc between two electrodes rather than a filament to produce light, and are often referred to as high-intensity discharge (HID) lights. Xenon gas is used as it helps establish ...

This brief "strobe" of light is good for "freezing" motion in still photos, reducing blur. However it also means xenon flashes cannot be used to illuminate video capture.

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Xenons on the other hand help modernise the look of a car with their crisp blueish light, so could help with the saleability of your car. The cost of replacing xenon bulbs is more than halogens ...

Tuesday will be mostly cloudy with a few spots of light rain or drizzle at times. It will turn brighter in the afternoon for many. Wednesday will see some low cloud and fog early but this will ...

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And they gush as much climate-warming carbon dioxide as America's cars, trucks, buses, and planes combined. Here and there, in small demonstration projects, engineers are exploring technologies ...

Synthetic fertilisers sprayed on fields contain chemicals such as ammonium and nitrogen, which help the crops grow but contribute significantly to global CO2 emissions. Without more information on ...

Light therapy lamps have been found to be an effective treatment for seasonal affective disorder (SAD). Seasonal affective disorder can bring on symptoms like depression, hopelessness, and fatigue, so ...

Red light therapy uses light-emitting diodes (LEDs) to treat medical and cosmetic conditions. Some people use it to reduce wrinkles, scars, and acne. It can also be used for dental pain, hair loss, ...

The global annual mean CO 2 concentration in 2021 was 414.4 ppm—a 50 per cent increase from the concentration of 277 ppm in 1750. Other long-lived greenhouse gases also contribute to global warming.