Recent content by jzz

Point taken!

https://en.m.wikipedia.org/wiki/Friction#:~:text=Amontons'%20First%20Law%3A%20The%20force,the%20apparent%20area%20of%20contact.

Sorry, my bad. I didn't know that PF rules required a reference. Will a Wikipedia reference do as a reference?

I won't argue semantics with you, he is a historically well known and documented scientist.

Guillame Amonton's Second law of friction: The force of friction is independent of the apparent area of contact.

Even taking disasters like Chernobyl into account nuclear power is still a viable alternative. Given the exigencies of the situation, namely the inability of renewable energy sources to produce a reliable power supply, there is no doubt that nuclear fission reactors offer a welcome alternative...

Fortunately, or unfortunately depending upon one’s point of view, classical physics is an exact science unlike quantum mechanics which depends heavily on statistics. Therefore, there is no reason to indulge in calumny or strong language. Just look it up. And, yes, I was referring to an instance...

Yes, no propulsive force could be applied to any vehicle by driving its wheels if friction were not present between the tyre and the road; in the absence of friction the wheels would merely spin round in place. An important consideration in attributing the major component involved in the...

True, astronauts on the space station are able to shave using similar methods, even though bristles floating in the air might need a more complicated approach. :smile:

It is an interesting question. Looked at in a logical sequence, it is gravitational forces that are responsible for friction. A look at the events in the International Space Station where gravity is at a minimum, shows that objects don’t even stay put in one place, they tend to float, let alone...

In quantum mechanics, the propagator typically refers to the probability amplitude for a particle to propagate from one position to another over a certain period of time. This concept is fundamental in understanding the time evolution of quantum systems described by Schrödinger's equation. In...

TY

I like the structured approach PF uses in the explanation and study of physics.