Most photos use a very short shutter speed – the time the sensor is exposed to the light, and therefore the duration of time captured in a photo. This would normally be at least 1/60th of a second, ...

I know photography isn't listed in the topic list but I hope it's OK to ask about it anyway Back when I was a teenager getting interested in photography there was the Olympus OM2 with its clever ...

NEW YORK, Dec. 12 (UPI) --Long-term exposure to air pollution poses an increased risk of blood clots in deep veins, which can result in serious complications, including death, a new study indicates.