Which is heavier, 100m of fiber, or a watch battery and Nano?
If you get the baloon to lift the fiber, you need some kind of diffuser for the tiny little dot of light coming out of the fiber
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16