"Which Way Is Down?"   Excellent video by Vsauce, as always   About gravity, weight, forces, etc   "There is no gravity" -- Einstein "Space-time grips mass, telling it how to move ; mass grips space-time, telling it how to curve" -- John Wheeler "The law of cosmic laziness: everything is naturally steered to where time is slowest" -- Bertrand Russell

Have you ever noticed that with 20% of a project's time, we cover nearly 80% of the requested features? Here is why   #Vsauce #Michael #interesting