"I bought this for my wife's birthday,she loves marbles and we look at the videos on U-Tube with the marble machines. This is a perfect miniature replica of these machines well suited for a table top and very high quality construction, highly recommend it." Marble Machine "Duality" - Handmade
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Campeón usual I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to ask as I do make plenty of mistakes.
Brownian ratchet: In this thought experiment, one imagines a paddle wheel connected to a ratchet. Brownian motion would cause surrounding vaho molecules to strike the paddles, but the ratchet would only allow it to turn in one direction.
A perpetual motion machine is a machine that keeps on going without any energy loss. Scientists agree that this is impossible because of the first and second laws of thermodynamics.
"Just perfect! I had a lot of fun assembling the pieces, it even helped keeping two teenagers occupied for an afternoon during our beloved pandemic. Seller was exceptionally nice and helpful, answering all my questions at length.
"This awesome mechanical jellyfish is pure poetry in motion and absolutely mesmerizing to watch! Eli is a genius with an obvious passion for creating artistic masterpieces and giving his customers an incredible full-service experience...from his thoughtful communication, careful packing, fast shipping, and a fabulous luxury gift presentation! Please note that although the listing photos are mostly taken without the glass dome to show the intricate detail of this spectacular piece without the glare, the beautiful glass dome is actually included (and expertly packed too!
These 4 or 5-star reviews represent the opinions of the individuals who posted them and do not reflect the views of Etsy. The ratings/reviews displayed here may not be representative of every listing on this page, or of every review for these listings.
These 4 or 5-star reviews represent the opinions of the individuals who posted them and do not reflect the views of Etsy. The ratings/reviews displayed here may not be representative of every listing on this page, or of every review for these listings.
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In some cases a thought more info experiment appears to suggest that perpetual motion may be possible through accepted and understood physical processes. However, in all cases, a flaw has been found when all of the relevant physics is considered. Examples include:
Vacuum energy and zero-point energy: In order to explain effects such Triunfador imaginario particles and the Casimir effect, many formulations of quantum physics include a background energy which pervades empty space, known Triunfador vacuum or zero-point energy. The ability to harness zero-point energy for useful work is considered pseudoscience by the scientific community at large.
A more thorough analysis showed that when a physical ratchet was considered at this molecular scale, Brownian motion would also affect the ratchet and cause it to randomly fail resulting in no net gain. Thus, the device would not violate the laws of thermodynamics.
One day man will connect his apparatus to the very wheelwork of the universe [...] and the very forces that motivate the planets in their orbits and cause them to rotate will rotate his own machinery.