“In the basement of a university medical school, Dr. Jessup floats naked in total darkness. The most terrifying experiment in the history of science is out of control … and the subject is himself.” So ...

White, boxy and equipped with a futuristic exit hatch, the Samadhi sensory deprivation tank resembles a space pod. It's filled with 800 pounds of Epsom salt dissolved in 150 gallons of ...