Scientists Demonstrate Completely Self-Powered Video Camera

Ok, this idea seems so obvious once you hear it.

hints:

  1. **** *** ******* ***** ** ** */****, *** ******'* ************** are **** **** *% ** *** ****.
  2. ******* *** ************ ******* ** ***** ******.

**, **** *** ********** ******* ** '******', ******* *** ***** and *** ** ** *** *** ******.

* ******** **** *** ** ***** *. *****, *.*. ***** Professor ** ******** ******* ** ******** ***********,*** ******** * ********* ***** ********** ** *** ***** ** ** ***** ****-*******—** *** ******* an ***** **** ******, ************, ** * ****-*** ****** *****. They ******** * ***** **** *** *** **** ******* ******** light *** **** ******* *** ******** ***** **** ******** *****.

**, *** ********** ** *** ***** ** *** **, *** as *** ****** **** ****** ** **** *** *****...

*** ***-***** *********** *****.... *** **** * ***** ***** ** might ****.

*** ******* *** ****** ***** **** ***** * ****** ** not, ** ***** ********* ****** *** ***** ****. *** ***** a **** *****, *****?

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**'* ** *********** *******.

** ****** ** *** ****** **** ******, ** **** *** power ****.

*** **** ***** ** **** ******* **'* ******* ***********, ** is * **** ** *** ***** *********. *** **** ** start *********.

****'* ****** ****. ****** *** *******.

*** ******* ***** *** ******.

*** ******* ***** *** ******.

*** **********, *********** *** ********** *** ********** **. * ***'* prove ** ** ******, *** **** ******** *** *** ***'* prints *** **** **. ;). ****'* ******* ***, ***** ** while *** ***....

*'* **** *** ****** ** ******** ** ****, ***** **** could ****** *** **** ** ******* ** ****** ********** **** the **** ** ********** ****** ***** *********.

**** ********* ***** **** ******* ** *** ****-****, ***-************** *******.

***** ***** ******* *** ********* ****** *********, **** ***** ******** accumulate * ****** ****** ** ****** ** ******* ** ******* uses, ******** **** ** ***** ** * ****** ***** **** than **** ***** ******* ** **** **** ********* ************.