The Transitive property

Look At the SUN!! No Really (but do it safely i.e. with welder glasses or a pinhole or a telescope with a mylar filter) Today mercury will be going across the face of the sun from noon til five. For said pinhole technique put a pinhole in a paper. hold up another paper light will diffuse out through hole onto another paper. look at the 2nd paper. NOT THE FIRST! and you will see an ecclips