The Theory of Measurements |
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abscissa accuracy accurate angle approximate arithmetical arithmetical mean average deviation calculation calorimeter cent centimetres Chauvenet's criterion coefficient column constant errors contour lines corresponding cubic centimetre decimal places decimal point density determined dispersion distance divided draw dynes equal equation example EXERCISES experimental Find the relation formula fractions frequency curve given gives gram graph graphic diagram horizontal inches increase intervals least squares length logarithmic scale logarithms mean measurements median metal method metre millimetre multiply normal equations Notice observations obtained ordinate paper parabola percentage plane Plot the curve position probable error proportional quantity quartile radian radius ratio represent result scale significant figures sine slide rule slope smooth curve specific gravity square root straight line student surface tangent temperature tenths unit variates velocity vernier vertical volume weight whole number x-axis x-values y-axis y=a+bx zero ΙΟ
Popular passages
Page 185 - This is the square root of the quotient of the sum of the squares of the deviations from the average divided by one less than the number of...
Page 45 - FRACTION is a negative number, and is one more than the number of ciphers between the decimal point and the first significant figure.
Page 20 - specific gravity" of a substance is defined as the ratio of the...
Page 178 - It is easy to see that this will not be the case if the average is used.
Page 41 - ... superfluous figures if the larger factor is used as the multiplier, but will give as many as the larger factor contains if that is used as the multiplicand. Of course the best method is to round off the larger factor before multiplying, so that it has no more figures than the smaller one. Standard Form.
Page 4 - ... watch their participation and thus time his delivery. Listeners are frequently asked to repeat pronunciations of words, to answer questions, or to draw pictures; consequently the radio teacher must learn to give adequate opportunity for this participation. It is also wise to repeat essential material, but this should be done in such a way as not to bore the listener. Music Instruction Since Dr. Joseph E. Maddy...
Page 103 - Galileo's suppositions that small vibrations of the pendulum are isochronous, and that the space traversed by a falling body is proportional to the square of the time it has been falling.
Page 112 - STEAM. /F1J = 475, (92.) Art. 12O3. in which/ is the pressure in pounds per square inch, and V the volume in cubic feet of a pound of steam at the given pressure. •WORK DONE IN THE CYLINDER OF A STEAM ENGINE. Let P = the pressure on the piston in pounds per sq. ft. ; p = pressure on piston in pounds per sq. in. ; V = volume swept through by the- piston; W '=• work in foot-pounds. Then, W=PV=\±±pV.
Page 295 - Show that in that part of the curve (x + y - 3c) xy + c* = 0 for which x is positive, the area between the curve, the axis of x, and the ordinate which touches the curve is Jc2.
Page 296 - Find the length of any arc of the catenary « / \ -*\ !"=-(« +« ")> and show that the area between the curve, the axis of x, and the ordinates at two points on the curve, is equal to a times the length of the arc terminated by those points.