German student builds electromagnetic harvester to recharge a battery

Dennis Siegel, a student at the University of the Arts in Bremen, Germany has built what he calls an electromagnetic harvester—it converts electromagnetic fields in the immediate environment into electricity to recharge a common AA battery. He’s won a 2nd place award in the HfK Bremen Hochschulpreis 2013 competition for Digitale Medien, for his efforts.

Electromagnetism is all around us of course. In addition to natural sources, such as lightning, it’s also given off by virtually every electronic gadget, device or machine humans make. Siegel (and many others) have noted that the electromagnetism around us all could be converted to electricity and used for some purpose. The problem of course, is that the comparatively small amount of it in the air around us isn’t enough to make much electricity—the device Siegel built takes up to a day to charge a single AA battery. But that’s not reason enough to not build and use a device, as he has demonstrated. He’s added electronics to give the device the capability of capturing electromagnetism in two ranges—one below 100Hz (electrical mains, etc.) and another for capturing those above 100Hz (Blue tooth frequencies etc.). On top is a red LED to indicate how strong the electromagnetism is in the area and on the back is a magnet for affixing the device to a metal surface near a good source.

The particulars of the electronics inside his device haven’t been detailed (likely to prevent copycats) with a description only of “coils and high frequency diodes” being put to use to allow for the conversion. But that clearly isn’t the point of his device. Instead, it highlights not only the fact that we live our lives in a constant state of bombardment of electromagnetism, but also that all of the energy from all of the collective devices in use in the world today, is currently going to waste. But, because of small devices like the one Siegel has built, it becomes possible to envision banks of such devices sitting on roofs (or other places) making use of that electromagnetism to add to the electricity generated by other renewable sources, such as solar or wind collection devices—just another way to demonstrate a higher level of intelligent power generation and conservation.

Credit: Dennis Siegel


Posted 1 year ago with 374 notes
Tagged:physicsscienceelectromagnetismelectromagnetic harvesterbattery chargerelectronic gadget

  1. frothysalmon reblogged this from starsaremymuse
  2. pikathecat reblogged this from xranunculus
  3. xranunculus reblogged this from carnivalpanda
  4. little-focker reblogged this from carnivalpanda
  5. nervous-energies reblogged this from carnivalpanda
  6. carnivalpanda reblogged this from organicalchemist
  7. organicalchemist reblogged this from there-is-science
  8. there-is-science reblogged this from starsaremymuse
  9. christophosaurus reblogged this from starsaremymuse
  10. starsaremymuse reblogged this from multiverseofawesomeness
  11. multiverseofawesomeness reblogged this from spaceplasma
  12. witcherbytrade reblogged this from spaceplasma
  13. eyelovejessica reblogged this from blackshirtfistbump
  14. inspirationandwonders reblogged this from spaceplasma
  15. derpmax reblogged this from alandwithoutmagikarp
  16. alandwithoutmagikarp reblogged this from spaceplasma
  17. iturnedintoatree reblogged this from astrotastic
  18. falbet reblogged this from nomu-nomu
  19. aezlo reblogged this from lohkay
  20. ah-thenah reblogged this from spaceplasma
  21. hippie-salutations reblogged this from nerdy-abstinence
  22. viralis reblogged this from spaceplasma
  23. todddai reblogged this from spaceplasma
  24. self-fulfilling-prophet reblogged this from loreface
  25. satanicpizzaparty reblogged this from spaceplasma
  26. universeistruth reblogged this from thevalidfallacy
  27. forestgirl3 reblogged this from spaceplasma
  28. fivekage reblogged this from astrotastic