Recent content by Davex
-
D
Media ~Neodymium magnets~
WOW! I wonder how long it would go in a VACUUM!?- Davex
- Post #7
- Forum: Science & Technology
-
D
A $5 Lamp Powered Solely by Gravity
Great idea! It could be scaled up a lot to something bigger that you pull up from cellar to loft in a shaft and provides light all evening!- Davex
- Post #7
- Forum: Science & Technology