Many astrophotos feature exposures of 12 hours or more. Since nighttime darkness is only about this long, this implies ...

assistant professor of surgery in Pitt's Trauma and Transfusion Medicine Research Center and vascular surgery resident at UPMC Scientists have long connected light exposure to health outcomes.

Other ways to protect an operator from light exposure include shields, goggles, glasses, face shields, gloves, and long sleeves. Manual (3-sided) and electric Light Shields for flood-curing lamps can ...