of starting with the digit 1. Benford's law of controversy: Passion is inversely proportional to the amount of real information available. Bennett's laws are principles in quantum information theory. Named for Charles H. Bennett. Bergmann's rule: within a broadly distributed taxonomic clade, populations and species of larger size are found in colder environments, and species of smaller size are found in warmer regions. Bernoulli's principle, in fluid dynamics, describes the effect that flow has on pressure contributing lift to airfoils. Betteridge's law of headlines: "any headline which ends in a question mark can be answered by the word 'no. Betz's law: No wind turbine can capture more than 16/27 (59.3%) of the kinetic energy in wind, independent of the design of the turbine, in open flow. Biot–Savart law describes the magnetic field set up by a steady current density. Named for Jean-Baptiste Biot and Félix Savart. Birch's law, in geophysics, establishes a linear relation of the compressional wave velocity of rocks and minerals of a constant average atomic weight. Named after Francis Birch. Born's law, in quantum mechanics, gives the probability that a measurement on a quantum system will yield a given result. Named after physicist Max Born. Boyle's law, in physics, one of the gas laws, states that the volume and pressure of an ideal gas of fixed mass held at a constant temperature are inversely proportional, or, that the product of absolute pressure and volume of a fixed mass is always constant. Discovered by and named after Robert Boyle (1627–1691). Bradford's law is a pattern described by Samuel C. Bradford in 1934 that estimates the exponentially diminishing returns of extending a library search. Bragg's law, in physics, gives the angles for coherent and incoherent scattering from a crystal lattice. Brandolini's law: The amount of energy needed to refute bullshit is an order of magnitude bigger than to produce it. Named after Italian programmer Alberto Brandolini. Brewster's law, an angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent dielectric surface, with no reflection. Named after Scottish physicist David Brewster. Briffault's law: "The female, not the male, determines all the conditions of the animal family. Where the female can derive no benefit from association with the male, no such association takes place." Named after Robert Briffault. Brooks's law: "Adding manpower to a late software project makes it later." Named after Fred Brooks, author