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How does gravity work?
Mass warps spacetime; objects follow those curves naturally
9.8 m/s² at Earth's surface
Spacetime Curvature
A massive object bends the fabric of space and time around it
Confirmed: 1919 solar eclipse
Newton vs Einstein
Newton saw a pulling force; Einstein saw curved geometry
Both hold at different scales
Why Do Things Fall?
Objects follow straight paths through curved spacetime
No force needed — just geometry
Terminal Velocity
Air drag grows until it equals gravitational pull
~56 m/s for a skydiver
g = 9.8 m/s²
Earth pulls all objects equally, regardless of their mass
Varies ±0.5% across Earth
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