...simple teknologi,inspired by some students from the Massachusetts Institute of Technology (MIT), dikenali sebagai 'solar light bulb", guna peluntur+air+klorin ... botol ini akan bertindak menyerakkan cahaya matahari ,the bleach and chlorine prevent mold and other bacteria from growing in the water, making sure that the "bulb" remains clear and its light bright for up to 5years. The light produced by the solar bottle bulb is equivalent to a 55-watt electric bulb — making it a great way to illuminate a small home, minus the electric costs.
for info:
Maximum solar flux on Earth is about 1 kw/m^2, and there are about 1500 square inches per square meter. So the rule of thumb would be .67 watts per square inch of bottle cross section facing the sun on a sunny mid-day. Last edited by dauswq on 30-3-2013 01:42 AM
amazing !!!
mesti cuba nih.
winamp05 Post at 12-6-2012 14:22
dan..cuba yg ne plak cool outdoor activity ,"homemade glowing light"
bhn2:
beli air brand mountain dew
bakin soda
3 sudu hydrogen peroxide
pasti kn trdpt 1/4 air soda dlm botol...balance 3/4 tuu u bley minom pas tu camporkn ckit soda bikarbonat dan 3 sudu hydrogen dlm 1/4 air mountain dew tuu..pas tu tutop tudon botol dan ggocanggg...tadaaaaa..it will light up like a lightbulb
Post time 11-6-2012 09:08 PM
变色卡
Author
Post time 1-7-2012 05:03 PM
