One of these situations that concerns the apparent contraction of the radius of a rapidly rotating disc is named for Ehrenfest, while another concerns the apparent lack of information conservation at the event horizon of a black hole.
One of these statements concerns the apparent ages of binary stars like Algol. One of these situations that concerns the apparent contraction of the radius of a rapidly rotating disc is named for Ehrenfest, while another concerns the apparent lack of information conservation at the event horizon of a black hole. One named for (*) Olbers concerns the darkness of the night sky despite the number of stars in the universe, while another concerns a pair of twins, one of whom boards a spaceship. For 10 points, name these seemingly contradictory situations.
One of these statements concerns the apparent ages of binary stars like Algol.
paradoxes