We take for granted that we can measure distances. Most people take for granted that we can represent physical space mathematically and calculate distances between pairs of points. We generally think of ourselves as living in R3, or 3D Euclidean space. Since this is how we represent physical space, it’s generally the most useful (though…
Tag: space
A casual intro to topics in relativity
Special relativity is a theory of motion developed primarily by Albert Einstein in the early 20th century. Its precursor was Galilean relativity, which basically states that velocities are relative. One of the key features special relativity is the speed of light c being a constant. This means its speed is not relative, and this has…
thoughts on mind 