Recent content by duri

If I interpret Michelson-Morley experiment in other way. There is no relative motion between source and observer in observer's frame. So, I can't expect changes in fringe pattern what ever angle the table is rotated. Assumption of ether flowing with velocity v is what demonstrated as incorrect...

Then sqrt(gamma*R*T) should be invariant with respect to inertial frame. (At least for speed in order of 100). Then can I claim speed of sound is invariant in all inertial frame of reference. I expect reply to be NO, but why it is no?

Let me put this way, 1. Observer moving with velocity v and source of signal from the front and rear are stationary from stationary reference. Observer is stationary with his own reference and source of signal is moving at velocity -v. These two are identical. This doesn't talks about speed of...

Is thermodynamics states like temperature, pressure and material properties like specific heat, thermal conductivity etc. invariant with inertial reference frame?.

Kokes, you are trying some very old concept. Spin stabilization would not decrease the drag but it will increase. Higher range you got is not due to lower drag. But it is a consequence of better stability. Try this one for understanding how stability contributes to range for uncontrolled and no...

It doesn't matter how you call it. Higher entropy change means higher loss and low efficiency process.

If I consider only the observer in the train frame (what ever be the observer's frame, observer will feel himself to be stationary). The source of the signal moves relative to him with velocity v. But the signal velocity is c. When source of the signal is moving towards him at the front of the...

You are always looking at one side of the equilibrium. Power on the shaft is torque*angular velocity but power from wind is function of change in swirl. When angular velocity increases with same free stream condition difference in swirl will decrease and torque would linear goes to zero. This...

This boils down to the notion that how the source of signal relative to the frame. Same argument hold if source of the signal is relatively stationary to the observer frame then he will get the signal simultaneously. This is true whether he is in the train or outside the train. If source is...

I agree velocity of light cannot change within the inertial frame of reference. My point is, this holds even for other waves or simply if you throw a ball at velocity c from front and rear end. Special relativity is not required to explain this. Note that I am not talking about difference...

I hope you are not looking into the aerodynamics of wind turbine. Though this is not practical, you can at least model this using potential equations. Your statement 1 says blade will accelerate to infinite angular velocity this is wrong. Applied torque will give change in angular velocity based...

Velocity invariance with inertial frame is not required to explain this. If velocity is invariant with train frame then observer in train should receive the signal simultaneously. Since distance traveled by light is same from front of the train to the middle, time = distance/velocity this...

There are lot of threads about this Einstein's experiment. I don't want to start a new one. My question is simple. What is so special about this experiment with respect to special relativity. This should hold in all sensory perception. For example, replace light with sound wave and observers...

Please don't bother about how mass acts as load. This is possible in several scenarios. Assume solar panel attached to circular rod, which can take some centrifugal stress (Tensile stress to the rod). Or vibrating solar panel. Solar panel as load and connecting rod as beam. In all cases mass is...

I wonder why no one replied on this. This is to take care of density increase in the flow while keeping constant axial velocity. In turbine density decreases do to expansion so passage is divergent.