length expansion

  Let's take a look at K Calculus from now on six times. K calculus was Hermann Bondi's first proposed relativistic calculation method. The important thing is that we start  using basic common sense . I f we do this, it will therefore be very easy.    This method starts using simple common sense, and can derive the time dilation,  velocity-addition formula , relativistic Doppler effect, and the Lorentz transformation itself. And during 5th and 6th time, I will point out the error of the length contraction and prove the length expansion through K Calculus.    I need a few posts to do that. After explaining that k calculus is a relativistically correct method, we will talk about 'the principle of invariant light speed and length'. I will describe it in the manner described by Bondi. I will let you know and explain in advance what the different is between Bondi's method and my own.    This method only deals with moving in one di...