Is there a sufficiently reliable way to get an acceptable measure of the actual colour temperature of the the light generated by an LED bulb, using generic hardware and/or software? Maybe there's an ...

i saw this at my university in a professor's office, and i can't find it online now....<BR><BR>it's a poster that shows a horizontal band, almost like a timeline, with the whole electromagnetic ...

The Conversation is asking kids to send in questions they'd like an expert to answer. Utsav, age 17, wants to know where black falls on the colour spectrum. A colour scientist explains. People love ...