Is it safe to use an electric sander on a metal bike frame?

I want to paint a second hand bmx bike i just bought cause it needs it and i know what to do but i have an electric sander and i figured it could save time then just using regular old sand paper, ive only used it on wood so i wouldnt know is it safe?

Will a 12v 12mA electric bike battery be safe to connect to my portable guitar amp?

I I have a Peavey Solo amp, 10 watts output, that runs on eight 1.5v NiMH batteries. I want to connect just one 12v battery, but what type do I need? I don’t want to under power or blow the amp!

Racing Helmets ? Keeping You In The Safe Zone

During racing of bikes, the importance of wearing helmets specifically designed for racing cannot be ignored. This is the key element that is vital and a much needed one to determine the safety of the rider. In any motorcycle race, safety of the racers is the most important matter of concern. These racing helmets are [...]