Neutral buoyancy diver maintains neutral buoyancy by continuous correction, usually by controlled breathing, as neutral buoyancy is an unstable condition for a compressible object in a liquid. The mathematician Archimedes discovered much of how buoyancy works more than 2000 years ago. In his research, Archimedes discovered that an object is buoyed up by a force equal to the weight of the water displaced by the object. In other words, an inflatable boat that displaces 100 pounds (45 kilograms) of water is buoyed up by that same weight of support. An object that floats in the water is known as being "positively" buoyant.
The Legend of Sam Miracle was published in 2017. The Legend of Sam Miracle Outlaws of Time: The Legend of Sam Miracle is a 2016 young adult novel by N. D. Wilson. It is published by HarperCollins. "The Legend of Sam Miracle" is the first book of a series which follows a lead character, Sam, "a foster kid with two bad arms who seeks refuge from his life in dreams." Sam finds he has the ability to bend and shift time (called "time walking"). According to "Publishers Weekly", the book has an "off-kilter perspective". The next book in the "Outlaws of Time" series, "The Song