Watch an incredible experiment as we build a super powerful artificial sun using graphite electrodes and high-voltage batteries. See the intense electric arc, extreme heat, and blinding light as we ...

Because adequate sunlight and vitamin D appear to reduce the prevalence of seasonal affective disorder, various specialty lamps have been created to provide this light. Sun lamps, also known as "happy ...

Save this article to read it later. Find this story in your account’s ‘Saved for Later’ section. We’ve written about a lot of lighting on the Strategist — everything from the selfie light Paris Hilton ...