>>13039700This is actually an extremely good question and I have noticed that most scientists cannot give a proper answer.
The thing is that most stuff related to lever is done with rigid bodies and newton laws, which we know for a fact are false (as in general relativity is more correct than Newton universal attraction, etc. and rigid body are an abstract convenience).
Most people point out that the work you provide on one side of the lever is done over a longer period of time, somehow "accumulated", which then accounts for the larger force at the other end.
So basically:
https://en.wikipedia.org/wiki/Work_(physics)#Torque_and_rotationBut that's obviously bullshit, some will say oversimplified but it's bullshit.
Nothing travels instantaneously and rigid bodies do no exist, also unbreakable pivot do not exist.
A proper explanation of the lever would account for the energy required to create the lever and the pivot so that they can support the operation.
The main point seem to be that increasing the distance between you and the pivot also means that the transmission of the work can be accumulated while portion of the energy you spend is already traveling to the pivot. Because all this shit is not instantaneous it allows you to accumulate the effort and then generate more force at the end. And this propagation is complex, it is done via the constraint of the lever and via the resistance of the pivot. All of which, as Feynman would point out, is quite complex and based on fucking electrons in the first place.
https://www.youtube.com/watch?v=36GT2zI8lVASo yeah, in my opinion lever are pretty fucking complicated and you cannot speak about lever without speaking about relativistic effects ("obviously").
