What sonic black holes say about the real deal

Work by William Unruh, a UBC professor of physics and astronomy, was cited in a Wired article comparing sonic black holes to black holes.

In an important 1981 paper, Unruh showed that black hole event horizons and sonic horizons in certain systems, now called sonic black holes, can be described by identical equations.

Considering their “amazing mathematical similarities,” Unruh said recently, “you get the feeling that if you really understand one system, that will give you insight into the other.”