A) 1923
B) 1897
C) 1879
D) 1905

A) Spherical
B) Curved
C) Hexagonal
D) Flat

A) The absence of black holes
B) The existence of gravitational waves
C) The existence of parallel universes
D) The reversal of time

A) Momentum is equivalent to energy
B) Gravity is equivalent to acceleration
C) Voltage is equivalent to current
D) Charge is equivalent to mass

A) As the result of friction
B) As the transfer of particles
C) As the interaction of strong and weak forces
D) As the curvature of spacetime

A) Six
B) Four
C) Three
D) Two

A) Frame dragging
B) Black hole formation
C) Quantum superposition
D) Time dilation

A) The event horizon of a black hole
B) The distance between galaxies
C) The curvature of a wormhole
D) The circumference of the Earth

A) Electromagnetic deflection
B) Reflection diffraction
C) Optical refraction
D) Gravitational lensing