Your comments bring back a long, almost forgotten memory.

It was the late 60s, the Apollo launches were the rage of the day.
I was 10 years old, sitting in my Grammer school class listening to my teacher, Philip Stillwell trying to explain Newtons Laws of Motion.

[Linked Image from d2mjvz2lqjkhe7.cloudfront.net]Philip Stillwell Oakhurst Elementary School

"For every action there is a equal and opposite reaction" he stated.

Newton's third law states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.

He went on to explain how he felt NASA's Apollo launches were sure to knock the earth from it's axis due to the extreme thrust involved with the rockets. He told us how the slightest bit of change in the tilt of the earth could effect our weather and seasons greatly.

I was as enthralled with the Apollo launches as I was Philip's teaching. Those Apollo Astronauts were Rock Stars back then.
You could buy 8x10 glossy photos of them at the grocery register.

Maybe Philip was on to something with his theories, maybe he was more a crackpot, either way he was a hell of a teacher.
If a student can recall a lesson 55 years later, he was sure teaching.