## Science in Fire-fighting |

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### Common terms and phrases

3-inch hose 45 degrees altitude applied base bed ladder center of gravity center of mass centrifugal pump computed connection crank handles developed diameter direction due to friction effect efficiency equal ergy ether ether waves extended fact factor Fahrenheit feet per second fire service firemen flame floor force formula friction loss fulcrum gallons flowing gallons per minute gear gear pump greater heat energy Hence impeller inch hose increase internal combustion engine kinetic energy length lever liquid loss of pressure mechanical mechanical advantage motion moving multiplied necessary nozzle pressure number of seconds obtained operation perpendicular pipe potential energy power arm pressure due pressure of 100 principles involved quotient radiant energy radiation raising rate of flow reason reciprocating pump resistance screw solid spread square inch stream discharged substance surface temperature tion truck tube vapor velocity of flow vertical viscosity water tower weight arm wheel

### Popular passages

Page 28 - Newton generalized the law of attraction into a statement that every particle of matter in the universe attracts every other particle with a force which varies directly as the product of their masses and inversely as the square of the distance between them; and he thence deduced the law of attraction for spherical shells of constant density.

Page 24 - Every body continues in its state of rest or of uniform motion in a straight line unless compelled to change that state by an external force. (%.) Every motion or change of motion is in the direction of the force impressed and is proportionate to it. (3.) Action and reaction are equal and opposite in direction.

Page 66 - The power will support a weight as many times as great as itself as the circumference described by the power is times as great as the distance between two adjoining turns of the thread. 227. Illustrate. If the screw has "4 threads to the inch...

Page 57 - When a given power acts parallel to an inclined plane, it will support a weight as many times as great as itself as the length of the plane is times as great as its vertical height.

Page 253 - The Latent Heat of Vaporization of a substance is the quantity of heat that is required to vaporize one gram of that substance without raising its temperature.

Page 196 - ... multiplied by the number of the second. (2) The distance traversed by a freely falling body during any second of its descent is equal to IQ.QSfeet (490 cm.) multiplied by one less than twice the number of the second.

Page 251 - CALORIE is the amount of heat required to raise the temperature of one kilogram of water one degree centigrade.

Page 241 - The Temperature of a body is its state considered with reference to its ability to communicate heat to other bodies.

Page 38 - Th'c power multiplied by the distance through which it moves equals the weight multiplied by the distance through which it moves. Hence, if 1 pound on the piston a represents the power P, the equivalent weight [F on b may be obtained from the equation PX 10 = ]l' X i, or 10 = £ IF, and IF = 40.

Page 254 - ... to that required to raise the temperature of the same weight of water one degree from the temperature of maximum density 39.1 is commonly called the specific heat of the substance.