Here’s
a way to brighten up enclosed spaces in an environmentally friendly
way. The power of the sun is harnessed using a bottle full of water.
Quite simply they’re used 2-liter soda bottles. They’ve been filled with
water along with two caps worth of bleach to keep microorganisms out.
The cap is then covered with a film canister to protect it from the sun.
They are installed through holes in the roof, and in full sun they put
out the equivalent of a 50 watt incandescent light bulb.
కామెంట్లు లేవు:
కామెంట్ను పోస్ట్ చేయండి