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Apr
18
revised Stanford: “Objects in spacetime all move at constant speed $c$.” Are they right?
added 34 characters in body
Apr
18
revised Stanford: “Objects in spacetime all move at constant speed $c$.” Are they right?
added 779 characters in body
Apr
18
revised Stanford: “Objects in spacetime all move at constant speed $c$.” Are they right?
added 50 characters in body
Mar
19
revised What is the sign of the energy exerted by a man sitting in the back of a boat pulling a canoe?
added 78 characters in body
Feb
29
revised Does light in vacuum actually travel at the speed of light?
added 202 characters in body
Feb
16
revised Why does the chemical potential vanish for Bose Einstein condensate?
added 650 characters in body
Jan
10
revised Stacking lenses for higher magnification (a DIY microscope)
improved formatting
Dec
31
revised Does Quantum Mechanics say that anything is possible?
added 17 characters in body
Dec
29
revised How do I describe the order of events in spacetime?
added 13 characters in body
Dec
21
revised Does Quantum Mechanics say that anything is possible?
edited body
Dec
6
revised Why are sine/cosine always used to describe oscillations?
deleted 6 characters in body
Nov
29
revised How to prove the average velocity formula without calculus
added 308 characters in body
Nov
29
revised Can we find a vector if its dot product and cross product with another vector is given?
added 6 characters in body
Nov
24
revised Why does the critical angle for refraction exist?
added 746 characters in body
Nov
11
revised How to reconcile these two approximations?
added 241 characters in body
Nov
7
revised Looking for clarification on superposition
added 714 characters in body
Nov
4
revised Why doesn't a spinning object in the air fall?
edited body
Oct
19
revised Why can scalars have a sign?
added 91 characters in body
Oct
19
revised Why can scalars have a sign?
added 63 characters in body
Sep
21
revised Is there a rigorous definition of 'much greater than'?
added 111 characters in body