I'm willing to believe Newton knew about NYC, but you really think he knew Boulder even existed? Seem pretty unlikely.
malmo wrote:
Newton knew about it, and he had no way of measuring it.
Here are Newton's calculations:
Boulder 40° Lattitude gb = ???? m/s²
New York 40° Lattitude gny = 9.802m/s²
G40°/G0° = (R0°/ R40°)²
gny/gb = (rb/rny)²
9.802/gb = (6369.6km/6368km)²
9.802/gb = 1.0005025
9.802/1.00050 = gb = 9.7970m/s²
The pull of gravity at Boulder is 99.95% compared to New York City. Translation: negligible