C426913 Can a Perpetual Motion Machine Ever Be Possible?

Thread starter sherif
Start date Jan 23, 2014
Tags

Machine Motion Perpetual motion

AI Thread Summary

Perpetual motion machines are fundamentally impossible as they violate the first law of thermodynamics. Discussions on this topic are not permitted on the Physics Forums. The community emphasizes adherence to established scientific principles. Despite curiosity, the consensus is that such machines cannot exist. The topic remains closed for further discussion.

Jan 23, 2014

sherif

perpetual motion machine ! i read many of this papers but it violates the first law of thermodynamics . can it come true one day

Physics news on Phys.org

Jan 23, 2014

davenn

Science Advisor

Gold Member

2024 Award

hi welcome to PF

perpetual motion machines do not work and they are not to be discussed on PF
please reread the rules and guidelines of the forum

Dave

Thread 'Is calling fictitious forces "not real" just about terminology?'

Hi there, im studying nanoscience at the university in Basel. Today I looked at the topic of intertial and non-inertial reference frames and the existence of fictitious forces. I understand that you call forces real in physics if they appear in interplay. Meaning that a force is real when there is the "actio" partner to the "reactio" partner. If this condition is not satisfied the force is not real. I also understand that if you specifically look at non-inertial reference frames you can...

View full post »

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...

View full post »