zawy

Instructables

• 

  Helical Antenna (helix) for FM Radio

  28 15K
• 

  Pulsing LEDs to Activate CCO

  16 2.2K
• 

  LED Helmet for Dementia, Alzheimers?

  13 10K
• 

  Heliostat for Solar Heating

  81 18K
• 

  A Copper Straw for Coffee, Etc

  2 1.8K