Physics of shoelaces shows why they come undone when you run
PeopleImages/GettyBy Jennifer Ouellette A combination of stomping and whipping explain why your shoelaces seem to come undone all by themselves. In 2015, MIT researchers came up with an equation for the simplest knots to describe the forces at work – tension, friction, and stiffness – and how they relate to the number of turns that make up the topology...
I regard the brain as a computer which will stop working when its component fail. There is no heaven or afterlife for broken-down computers. That is a fairy story for people afraid of the dark