Recent content by gen x

if it is just click bait then no need to further explanation. I learn from this forum Einstein and Newton was wrong in so many things, so I thought it can be Feynman as well.. Because I don't want to learn physics that will be different for 100 years.

I didnt understand well, so where was Feynman wrong?

Here Tim Maudlin explain that acceleration is not reason why one twin become younger, and that Feynman explained that wrongly? Is this correct and can you explain what he want to say?

Why Newton didn't conclude, now water rotate in relation for example Earth frame? I think he wrote, that water rotate in relation to absolute space Rotation is acceleration, so Newton did not notice that speed is relative and acceleration is absolute? Why would not behave same as places where...

And what is your conclusion? If we don't have matter in universe, does we have only one possible frame?

My evidence is pure logic, because of inertia water/bucket will continue to spin. Isn't that so trivial? It is not possible to remove all matter in universe, but we can do this test in elevator in free fall, in free fall gravity is zero and that is very similar situation as there is no...

Water would not be curved like in case when earth(gravity)is below bucket, but without gravity and if bucket has lid water will be rotating on the sides of bucket, in center will be hole. If bucket dont have lid water will goes out of bucket. Indeed we can try this in free fall, zero g-flight...

If you remove all matter in universe when Newton bucket is spinning(water level is still curved), bucket spins in relation to what? How we called this frame?

We can have more theories that deliver correct results (same as experiment), so that mean theories are just math models nor reality. Why we think that only one theory from gravity will get correct result?

if strain gauge measure zero when I build ruler in no gravity place and then I put ruler near heavy planet, so ruler will bend to follow "spacetime", then gauge must show non zero, because something bend material?

You mean my long ruler will be deformed due to gravity?

I think deeply we go into physics, we end up in philosophy, what is time, space, energy ... Imagine you have very very long straight ruler, and put it close to huge planet(strong gravity), how will this ruler measure curved space if it is straight?

What is definition of space in physics? google search Classical Physics: Space is an absolute, static container or background independent of the objects inside it, defined by three linear dimensions (width, height, and depth). Modern Physics: Space is inseparable from time, forming a dynamic...

Can you explain this? Did Newton knew that in non inertial frame we must introduce pseudo forces?

Where Newton write that we have detectable absolute frame? You cant detect something that dont exist, frame/ space dont exist, nothing by definition do not exist.