In an online lecture, a professor mentioned that Einstein could draw or imagine a 4-dimensional figure. How can one possibly do that? originally appeared on Quora: the knowledge sharing network where ...

Luke Lancaster is an Associate Editor with CNET, based out of Australia. He spends his time with games (both board and video) and comics (both reading and writing). The genius of Lego Dimensions is ...

In a hypertorus model of the Universe, motion in a straight line will return you to your original location, even in an uncurved (flat) spacetime. The Universe could also be closed and positively ...

When it comes to the dimensions of spacetime, what you see may be what you get. Using observations from the collision of two neutron stars that made headlines in 2017 (SN: 11/11/17, p. 6), scientists ...