A team of computer scientists and electrical engineers at the University of Washington has invented a cellphone that requires no batteries and harvests power from either ambient radio signals or light. The device is described in this paper.
Authors get paid when people like you upvote their post.
If you enjoyed what you read here, create your account today and start earning FREE STEEM!
If you enjoyed what you read here, create your account today and start earning FREE STEEM!
Very interesting and much needed for third world countries.
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit
Congratulations @voidhunter! You have completed some achievement on Steemit and have been rewarded with new badge(s) :
Click on any badge to view your own Board of Honor on SteemitBoard.
For more information about SteemitBoard, click here
If you no longer want to receive notifications, reply to this comment with the word
STOPDownvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit