Trajectory

[|Trajectory Ellen Show] [|Lunar Rover Rooster Tails] Newton's Cannon https://en.wikipedia.org/wiki/Newton%27s_cannonball Simulation http://waowen.screaming.net/revision/force&motion/ncananim.htm https://scratch.mit.edu/projects/17080359/ http://www.kean.edu/~gkolodiy/physics/gravity/kepler1.html https://physics.weber.edu/schroeder/software/NewtonsCannon.html

https://www.forbes.com/sites/startswithabang/2017/11/02/what-would-happen-if-you-became-dark-matter/#657608d43fd2

Be aware of the logical difficulties associated with "verbs of being". What is the mathematical shape of a projectile's path? Is the path of a trajectory a parabola or an ellipse? (Thank you Galileo 1607) What is the path of an object in orbit? (Thank you Kepler 1551)

Newton describes gravity. 1687 Einstein explains why gravity and acceleration are the same thing. 1907 https://www.lhup.edu/~dsimanek/scenario/secrets.htm https://www.boundless.com/physics/textbooks/boundless-physics-textbook/two-dimensional-kinematics-3/projectile-motion-42/basic-equations-and-parabolic-path-226-10952/ A Timeline of Activities & Events - Copernicus to Newton http://users.clas.ufl.edu/ufhatch/pages/03-Sci-Rev/SCI-REV-Home/05-sr-lng-timeline.htm