This is our second activity that requires the use of a smartphone or tablet. Please let us know what you think. E-mail editors@sciam.com with feedback about the use of technology in this—and ...

In the days of old, back when television was solely recorded on a thing called “film,” the cinematographer was known as a kind of fortune-teller/ magician who could mysteriously read the light in the ...

How does one go about measuring the amount of light in a given area? With a Light Meter of course! Maintaining proper lighting levels can be very important in places like schools, hospitals and even ...