Light bulbs
When you have an idea, a bulb lights up in your head, but when you really switch on a bulb, maybe you don't have any idea of what lays behind this simple click. How much does it consume, what colour does it emit, what source is feeding it, how many lumens does it provide, does it bear any toxic substances, how long does it last, where does its light spread on? If I have to come back immediately, do I switch off the light? We want to cast light on this topic, since light abounds, specially daylight.
25/08/2011 - 13:46
