By taking advantage of an immutable force,... - Wissenschaft und Deutsch
By taking advantage of an immutable force, the GravityLight may be the most reliable electric light source of all. A person simply lifts a 22-pound bag of ballast up to the base of the device; the weight falls over a period of 30 minutes, pulling a strap that spins gears and drives a motor, which continuously powers an LED. Peripheral LEDs can be attached to focus light on certain spots. DeciWatt is field-testing units to replace kerosene lamps in developing countries and plans to sell them there for $10 next year.


source
By taking advantage of an immutable force, the GravityLight may be the most reliable electric light source of all. A person simply lifts a 22-pound bag of ballast up to the base of the device; the weight falls over a period of 30 minutes, pulling a strap that spins gears and drives a motor, which continuously powers an LED. Peripheral LEDs can be attached to focus light on certain spots. DeciWatt is field-testing units to replace kerosene lamps in developing countries and plans to sell them there for $10 next year.

source

  1. thelevanter reblogged this from scienceyoucanlove
  2. justbev reblogged this from scienceyoucanlove
  3. redhairedtwinsaremycrackships reblogged this from moelskerdeg
  4. moelskerdeg reblogged this from alan713ch
  5. stealthbaguette reblogged this from scienceyoucanlove
  6. ah-thenah reblogged this from scienceyoucanlove
  7. timetravelsuckerpunch reblogged this from dixie-chicken
  8. kitkatdancer78 reblogged this from erbracelet
  9. wifiparty reblogged this from dixie-chicken
  10. liliuo reblogged this from scienceyoucanlove
  11. wanderlust1285 reblogged this from scienceyoucanlove
  12. dixie-chicken reblogged this from prettyprettypretties
  13. prettyprettypretties reblogged this from scienceyoucanlove
  14. d3k3b3 reblogged this from scienceyoucanlove
  15. waveschocolatenetflix reblogged this from scienceyoucanlove
  16. tediouslittletidbit reblogged this from scienceyoucanlove
  17. torienyart reblogged this from scienceyoucanlove
  18. amireille reblogged this from scienceyoucanlove
  19. randommusingsofninjateenagenerds reblogged this from blujayonthewing
  20. abaddonlives reblogged this from blujayonthewing
  21. alan713ch reblogged this from scienceyoucanlove
  22. annabel-lee29 reblogged this from scienceyoucanlove