Search results
Results from the WOW.Com Content Network
A water temperature of 10 °C (50 °F) can lead to death in as little as one hour, and water temperatures near freezing can cause death in as little as 15 minutes. [37] During the sinking of the Titanic , most people who entered the −2 °C (28 °F) water died in 15–30 minutes.
Approximate width of an adult human finger: 54 mm × 86 mm Dimensions of a credit card, according to the ISO/IEC 7810 ID-1 standard 73–75 mm Diameter of a baseball, according to Major League Baseball guidelines [28] 10 −1: 1 decimeter 120 mm Diameter of a compact disc: 660 mm Length of the longest pine cones, produced by the sugar pine [29 ...
Other fixed points used in the past are the body temperature (of a healthy adult male) which was originally used by Fahrenheit as his upper fixed point (96 °F (35.6 °C) to be a number divisible by 12) and the lowest temperature given by a mixture of salt and ice, which was originally the definition of 0 °F (−17.8 °C). [37]
The surface tension of a watery surface (the water-air interface) tends to make that surface shrink. [6] When that surface is curved as it is in the alveoli of the lungs, the shrinkage of the surface decreases the diameter of the alveoli. The more acute the curvature of the water-air interface the greater the tendency for the alveolus to ...
Water solubility: negligible Specific gravity: 0.87 Principal hazards *** Benzene is a carcinogen (cancer-causing agent). *** Very flammable. The pure material, and any solutions containing it, constitute a fire risk. Safe handling: Benzene should NOT be used at all unless no safer alternatives are available.
A mammal (from Latin mamma 'breast') [1] is a vertebrate animal of the class Mammalia (/ m ə ˈ m eɪ l i. ə /).Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three middle ear bones.
Depending on the solute and range of concentration, an aqueous electrolyte solution can have either a larger or smaller viscosity compared with pure water at the same temperature and pressure. For instance, a 20% saline ( sodium chloride ) solution has viscosity over 1.5 times that of pure water, whereas a 20% potassium iodide solution has ...
Bacteria can use flagella in different ways to generate different kinds of movement. Many bacteria (such as E. coli ) have two distinct modes of movement: forward movement (swimming) and tumbling . The tumbling allows them to reorient and makes their movement a three- dimensional random walk . [ 153 ]