Recent content by just dani ok

but light bend near massive object, so it is accelerated.

sorry, my mistake.

I think you need to clarify this. Pendulum is not mass independent.

Another common example is CO2 fire extinguisher. You can easily find air moisture turns into frost around the nozzle.

basically the bottle represent area 1. the coolest part is right after expansion valve where the most pressure drop occurs. in your case it is right after the hole.

yes

I think this video explains this situation pretty clearly. It even uses actual and quite current example to do it.

Maybe you would like to read this article https://en.m.wikipedia.org/wiki/Inverse-square_law

Have you ever heard about non-diffractive obstacle or non-diffractive slit?

Something is called easy when a result can be achieved with less effort. In this case the result is the polarization of the material which in turn determine total electric charge stored in a capacitor while the effort is the potensial required to polarize the material for required quantity of...

additional evidence that the diffraction effect originated from the edge of the obstacle. Shine a laser beam on a single slit diffraction with vertical slit orientation. You get usual single slit diffraction pattern. Then tilt the slit by making its top side closer to the screen. Now the...

back to op. In all those cases the total force is zero, which means no acceleration. the only object that can cancel the external force in the picture is the floor. hence in all those cases the floor applies friction force to the object above it to the left, as much as F. in case 1 the force on...

he did mention that total force is 0 hence the system is not accelerating. According to the picture, only in case 3 we have moving object.

AFAIK Fermat mention about the path which require minimum travel time, not merely straight line distance.

Are the solutions derived from Huygen's principle? The pattern shown in the first link only occur when the laser is spread eg. by lens, but when the laser beam is not spread, the pattern doesn't occur. The formula often used to derive single slit diffraction implies that the source of...