Questions with the keyword 'machine'

• Hi Charlie, Do you believe that the technology peope like you are working on now will ever be used on domestic by 08wooda to Charlie Comments: (No comments so far )
• explain to me the rules why a propetual motion device is imposible because i think with more balls that device you can by lou96 to Charlie, Eoin, Jemma, Julian, Steve Comments: (No comments so far )