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Hi I saw a YouTube video on a laser gun that removes rust, anyways I have done some research on pullsed lasers and I was curious what is the possibility of building such a laser to remove rust for automotive rust removal for restoring old cars? I know that the process is called ablation and...

Hi I am new to laser pointers I mean I have bought crummy $5 laser but I was wondering what is needed to make a laser that will be able to light things like fireworks also does it matter which colors I use. Also will laser protective glasses need to be used for a laser that can burn/light...