Home     Contact     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
   
 Home      Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   


<< Back to INDEX

Do you know the cohere [Wireless energy]
posted December 22 2010 19:25.43 by Giorgos Lazaridis




The coherer was a primitive form of radio signal detector, invented by scientist Edouard Branly around 1890. It is nothing more than two electrodes placed one close to the other, with metal filings in the space between them. The two electrodes acts as an open circuit, until an EMP or RF energy is applied to it. The device acts then as a resistor. Youtube user gilbondfac made a replica of this device in his lab, and managed to transmit energy from a distance to light an LED. Watch his video.

[Link: gilbondfac]
Tags: electronic project   physics   chemistry   diy   antenna   wireless   inventions   experiments   science   
Share



You might also like...


Amazing Old Calculator (Curta) [Tech History]

The Cubli: a cube that can jump up, balance, and 'walk' [Innovation]

Rick Dangerous Remake wakes me up memories [Game]

The Picdump of the day #17 [5 Photos]

Infuse cocktails the scientific way, with vacuum...

I Will Fix That! #7 [3 Photos]

First digital camera [Technology]

I had a BMX myself, but NOT a DJ toolkit BMX~ [Video]


<< Back to INDEX



Comments

  Name

  Email (shall not be published)

  Website

Notify me of new posts via email


Write your comments below:
BEFORE you post a comment:You are welcome to comment for corrections and suggestions on this page. But if you have questions please use the forum instead to post it. Thank you.


      

No comment yet...

Be the first to comment on this page!












 Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS   

Site design: Giorgos Lazaridis
© Copyright 2008
Please read the Terms of services and the Privacy policy