A lamp that uses blood to create light is meant to make people rethink how they use energy. The lamp contains luminol, a chemical that reacts with the iron in blood and creates a bright blue glow. Credit: Mike Thompson, http://www.miket.co.uk/From Live Science:
What if, every time you wanted to switch on a light, you had to bleed? Would you think twice before illuminating the room, and in turn, using up energy?
That's the idea behind the blood lamp, invented by Mike Thomspon, an English designer based in The Netherlands. The lamp contains luminol – the same chemical forensic scientists use to check for traces of blood at a crime scence. Luminol reacts with the iron in red blood cells and creates a bright blue glow.
To use the lamp, you first need to mix in an activating powder. Then, you break the glass, cut yourself, and drip blood into the opening.
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