Common sources of light include: Mercury vapor lamps: The UV light emitted by these lamps is highly energetic and frequently used to start photochemical reactions. Xenon lamps: Xenon lamps are ...

By the early 1950s, when Mayor Thomas D’Alesandro began conversion of the city’s lighting to mercury vapor lamps, there were still more than 10,000 gas lamps casting their wonderful soft ...

Compact fluorescent lamps (CFLs) are the squiggly light bulbs ... But a broken CFL bulb or fluorescent tube can expose you to mercury vapor! The EPA recommends taking these steps if a bulb is ...

You can turn on and off LED lights instantaneously because they don’t require a warm-up period like metal halide lamps. LEDs are safe for the environment. Fluorescent and mercury vapor lights contain ...

Put on your headphones. In today's episode, host Emily Kwong leads us on a night hike in Patuxent River State Park in Maryland. Alongside a group of naturalists led by Serenella Linares, we'll meet a ...

Short Wave New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor. Join ...

February 2, 2025 • Humans actually have vestigial muscles that activate when listening closely to something, even though people lost the ability to really move their ears about 25 million years ago.

While energy-saving and applications are two paramount factors in finding which lamp to install, the dusk-to-dawn lights have them all. Furthermore, they are easy to install and long-lasting. If you ...

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