Gμν + Λgμν = 8πG/c4 Tμν
RELATIVITY.QUEST
A street-level physics observatory
the universe bends here →
SPACETIME CURVATURE VISUALIZATION
drag mass to warp spacetime fabric
mass tells spacetime how to curve...
TIME DILATION GAUGE
STATIONARY OBSERVER
00:00:00.000
MOVING FRAME (0.9c)
00:00:00.000
Δt' = Δt / √(1 - v²/c²)
time slows down when you move fast enough
GEODESIC PATHS
light follows the curvature of spacetime
ds² = -(1-2GM/rc²)c²dt² + (1-2GM/rc²)⁻¹dr² + r²dΩ²
GRAVITATIONAL WAVE DETECTOR
FREQ: 35.2 Hz
STRAIN: 1.2×10⁻²¹
SNR: 24.7
chirp signal from binary merger event
EQUIVALENCE PRINCIPLE
GRAVITY
=
ACCELERATION
can't tell the difference from inside