38 diagram of a sarcomere
From my understanding, if a vector is pointing 45° from north, that means it represents a velocity of c. I also understand that time is essentially stopped for objects traveling at c. However, if the vector has a t component that's greater than zero (as is the case with the vector of a photon), doesn't that mean it is still travelling through time? Is there some kind of relativistic shenanigans going on that I don't understand, or am I just misinterpreting the diagram? Thanks in advance! I am trying to understand the answer to the following question: (T/F): The shorter the sarcomere length, the stronger the contraction. In my research I'm coming across what seems to be contradictory info on this. Khan Academy has a video explaining that as the length of the sarcomere increases, the tension it can produce increases (up to a certain point, before dropping off). If this is true, then why does the sarcomere shorten in order to provide the force generated during a muscl...