I was born in a tiny town 50km from Sobral, Brazil. As a kid, I always heard that Einstein was there a long time ago to prove his theory, but I took that with a grain of salt and maybe as an urban legend. It is interesting to see this last image with the location of Sobral on the map and a drawing of the observation station as a proof that this…

One of the tests of spooky action at a distance (quantum non-locality) is to create two entangle photons such that they always have opposite polarity. If one polarity is up the other is down. Even if they are two light years apart, if you change one polarity from up to down, the others polarity will instantly change from down to up. Doesn’t the…

(non physicist here)

While I’m not saying anything written above is wrong, it could be explained better as it gets confusing for anyone who tries to follow logic.

We need to forget all about earth and shopkeeper as those just add to the confusion. There are only two spaceships moving relative to each…

Very interesting article, but reading it I come to think that maybe it’s not that for the photon the time is instantaneous but maybe that for the photon the time does not exists, photon does not care about time because at light’s speed time simply vanishes, does not exist. Even maybe that could apply for the mass too, at light’s speed mass simply can…