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<blockquote data-quote="oldngray" data-source="post: 1504011" data-attributes="member: 45230"><p>Magnets have been tried to generate thrust and some inventors promised almost perpetual motion machines with them but none of those ideas ever worked. Friction and increased weight defeated any potential advantages. Maglev is different and works but only under limited conditions.</p></blockquote><p></p>
[QUOTE="oldngray, post: 1504011, member: 45230"] Magnets have been tried to generate thrust and some inventors promised almost perpetual motion machines with them but none of those ideas ever worked. Friction and increased weight defeated any potential advantages. Maglev is different and works but only under limited conditions. [/QUOTE]
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