Mm, just Clara, at the store.
X 5 mm., the sides of this square being parallel spider webs 4" of arc apart; the size of the square is reckoned from centre to centre of these double webs.
17), which actuate the movable slides, have heads divided into 100 parts, one revolution = 0.5 mm.; so that ten revolutions are = 5 mm., or = the interval between two adjacent reseau-lines, or = the interval between the sides of the " fixed square."
The micrometer-screw S has a pitch of 0.5 mm., its head is divided into too parts.
At low temperatures, on the other hand, they find, using an initial pressure of 'coo mm., that the temperatures on the helium scale are measurably higher than on the hydrogen scale, owing to the more perfectly gaseous condition of helium.
It is a colourless oil, which boils at 247° C. (745 mm.), and when pure is almost odourless.
In 69 mm., or 454o m.
On treatment with potassium bromide it yields thionyl bromide, SOBr2, an orange-yellow liquid which boils at 68° C. (40 mm.) (Hartoz and Sims, Chem.
Zinc dust and hydrochloric acid reduce pyrrol to pyrrolin (dihydropyrrol), C 4 H 6 NH, a liquid which boils at 90° C. (748 mm.); it is soluble in water and has strongly basic properties and an alkaline reaction.
The second method is still employed in many cases, and we find thus: In cases where the draughtsman has omitted to indicate the scale we can ascertain it by dividing the actual length of a meridian degree by the length of a degree measure upon the map. Thus a degree between 50° and 51° measures 111,226,000 mm.; on the map it is represented by i r r mm.
The original drawings for this map had to be done with exceptional neatness, the draughtsman spending twelve months on that which he would have completed in four months had it been intended to engrave the map on copper; yet an average chart, measuring 530 by 630 mm., which would have taken two years and nine months for drawing and engraving, was completed in less than fifteen months - fifty days of which were spent in " retouching " the copper plate.
He published in 1507 a huge map of the world, in 12 sheets, together with a small globe of a diameter of I 10 mm., the segments for which were printed from wood-blocks.
Globes were still engraved on copper, or painted by hand, but since 1507, in which year Waldseemuller published a small globe of a diameter of 110 mm., covered with printed segments or gores, this cheap and expeditious method has come into general use.
822 mm.), which is drawn by hand, and is preserved in the Germanic Museum at Nuremberg.
Its diameter is 160 mm., its date about 1530.
61o mm.) is now in the Temple Library, and is referred to in Blundeville's Exercises (1594).
N ' mm'] (Against Heresies, ii.
Even under so " moderate " a load as 33 kilogrammes per square mm., the induced magnetization of a hard-drawn nickel wire in a field of 60 fell from 386 to 72 units, while the residual was reduced from about 280 to io.
To give an idea of what can be done in this way, it may be stated that gold can be beaten out to leaf of the thickness of - j g - mm.; and that platinum, by judicious work, can be drawn into wire 2?o o mm.
05 mm., and the " silt " from 05 to 005 mm., the " clay " being composed of particles less than .005 mm.
Between the atmospheric pressure (750 mm.) in the Pacific and that (772 mm.) in the Japanese islands.
It boils at 78.3° C. (760 mm.); at - 90° C. it is a thick liquid, and at - 130° it solidifies to a white mass.
Apus australiensis (Spencer and Hall, 1896) may rank as the largest of the Entomostraca, reaching in the male, from front of shield to end of telson, a length of 70 mm., in the female of 64 mm.
In individual size they have never been important, and of living forms the largest is one of recent discovery, Crossophorus africanus, a Cypridinid about three-fifths of an inch 05.5 mm.) long; but a length of one or two millimetres is more common, and it may descend to the seventy-fifth of an inch.
For the specific mass of the cubic decimetre of water at 4° C., under an atmospheric pressure equal to 760 mm., Guillaume and Chappuis of the Comite International des Poids et Mesures at Paris (C.I.P.M.) have obtained 0.9999707 kg., which has been accepted by the committee.
One inch = 25.4 mm.; also 29.9094x25.4 = 759.69876; and 759.69876x1.000577 = 760.137 mm.