A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry.
Aldous Huxley’s Deep Reflection (thereader.mitpress.mit.edu)The following article is excerpted from J. Allan Hobson’s 2002 book “The Dream Drugstore: Chemically Altered States of Consciousness.” Hobson, a Harvard psychiatrist, pioneering sleep researcher, and prolific author, died in 2021.