'15th grade physics whizzes know it's the force described by the equation seen <a href="http://www.j-archive.com/media/2009-03-11_DJ_10.jpg" target="_blank">here</a>'
gravity
ARE YOU SMARTER THAN A 15th GRADER?: 15th grade physics whizzes know its the force described by the equation seen here
15th grade physics whizzes know it's the force described by the equation seen here
15th grade physics whizzes know it's the force described by the equation seen here
ARE YOU SMARTER THAN A 15th GRADER?
gravity
ARE YOU SMARTER THAN A 15th GRADER?