Overall Rating:
and share your thoughts with other customers
Sort Reviews: Newest |
Oldest |
Highest Rating |
Lowest Rating - Monday, September 24, 2007
Great Energy Demonstation
Reviewed By:
Matthew Caddell (San Diego, California)
I use this lense to demonstrate how much power is contained in light energy. Focused down to 1/16 of a square inch, it magnifies the heat intensity by a factor of 2000. Instantly burns green leaves, etc.. Is there an energy crisis?! Not if we learn to recover the energy that's already around us.
- Saturday, February 23, 2008
melt rock
Reviewed By:
Tim Ebert (Auburndale, Florida)
Over twenty years ago my dad bought one of these lenses for me from Edmond Scientific. We made a solar furnace. It could melt some pumice, and burn lots of stuff. I tried using several at once to increase the power, but that task was beyond my skill at the time. The sun moves and changes the focal point. I enjoyed using the lens, but it requires more experience/help than the typical 12 year old possesses to make a real furnace.
Read More Reviews
Gift Wrap Available
