The Lower Quote, As If You Didn't Know, Is By Richard Dawkins, Son.

Monday, December 25, 2006

Isaac is a Year Old - Sort Of

In tribute to arguably the greatest mind to ever walk the planet, I would like to wish everyone a Happy Isaac Newton's Birthday. The honorable Sir Isaac would have turned 365 today.

Please repeat after me:
1. Inertia is an object's resistance to movement.

2. Force equals mass times acceleration.

3. Every action has an equal and opposite reaction.

Thank you and enjoy Issac Day!

1 Barbaric Yawps:

At 26/12/06 9:32 pm, Blogger Hans Derycke said...

Inertia is an object's resistance to acceleration, or change in movement, not movement itself. After all, a body in motion, remains in motion, unless a force acts upon it.

However, that merely obscures the question: What *is* inertia? What causes inertia?

Some obscure historical figure mocked Newton's theory of gravity, saying that what causes objects to fall was well-known, it was heaviness. Newton's reply was, allegedly, that it was well-known that is was *called* heaviness, but that naming it doesn't explain it.

Likewise, the resistance of an object to acceleration is called inertia, but what is inertia anyway? It's the pixie dust in F=ma, that's what.

 

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