Glasgow Mechanics' Magazine, and Annals of Philosophy, Volym 4W.R. M'Phun., 1826 |
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Sida 14
... round the sides of the coin , and the whole is circumscribed by a bead within the hollow of the raised edge . The half - crown bears an exact fac - simile of the devices on the crown piece , but upon a smaller scale ; the edge of the ...
... round the sides of the coin , and the whole is circumscribed by a bead within the hollow of the raised edge . The half - crown bears an exact fac - simile of the devices on the crown piece , but upon a smaller scale ; the edge of the ...
Sida 18
... round by the chain or cord passing over it , moves the hand along the index , while the scale , descending as the articles in it are increased , raises Just as many of the weights as they weigh , and the amount of which is pointed out ...
... round by the chain or cord passing over it , moves the hand along the index , while the scale , descending as the articles in it are increased , raises Just as many of the weights as they weigh , and the amount of which is pointed out ...
Sida 19
... round , oval , octagonal , or of any other figure that may be deemed suitable , provided that the principle is retained , viz . that of conducting currents of air in differ- ent directions through the furnace , by means of lateral flues ...
... round , oval , octagonal , or of any other figure that may be deemed suitable , provided that the principle is retained , viz . that of conducting currents of air in differ- ent directions through the furnace , by means of lateral flues ...
Sida 21
... round bodies , or balls , run- ning towards the sun from the dark part of the room , even to the distance of 20 inches . I observed their motion was a little irregular , but rectilinear , and seemed accel- erated as they approached the ...
... round bodies , or balls , run- ning towards the sun from the dark part of the room , even to the distance of 20 inches . I observed their motion was a little irregular , but rectilinear , and seemed accel- erated as they approached the ...
Sida 22
... round bodies , run- ning towards the sun from the dark part of the room , ' were nothing more than a few birds , at a con- siderable distance , gliding through the air . 99 STEEL , in the various forms in which it is usually employed ...
... round bodies , run- ning towards the sun from the dark part of the room , ' were nothing more than a few birds , at a con- siderable distance , gliding through the air . 99 STEEL , in the various forms in which it is usually employed ...
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Populära avsnitt
Sida 142 - But, first, whom shall we send In search of this new World ? whom shall we find Sufficient...
Sida 333 - AH ! who can tell how hard it is to climb The steep where Fame's proud temple shines afar...
Sida 33 - ... and leads us towards perfection. A middle-aged ploughman will scarce ever be brought to the carriage and language of a gentleman, though his body be as well proportioned, and his joints as supple, and his natural parts not any way inferior.
Sida 177 - With gold and gems if Chilian mountains glow ; If bleak and barren Scotia's hills arise ; There plague and poison, lust and rapine grow ; Here peaceful are the vales, and pure the skies, And freedom fires the soul, and sparkles in the eyes. : Then grieve not, thou, to whom th
Sida 154 - The weights I use are one globule of gold which weighs one grain, and two or three others which weigh onetenth of a grain each ; and also a number of small rings of fine brass wire, made in the manner first mentioned by Mr. Lewis, by appending a weight to the wire, and coiling it with the tension of that weight round a thicker brass wire in a close spiral, after which the extremity of the spiral being tied hard with waxed thread, I put the covered wire in a vice, and applying a sharp knife, which...
Sida 90 - Mechanist, in consequence of a communication made to him by a certain Foreigner, residing abroad...
Sida 335 - One part, one little part, we dimly scan Through the dark medium of life's feverish dream ; Yet dare arraign the whole stupendous plan, If but that little part incongruous seem.
Sida 155 - You will perceive that by means of these weights placed on different parts of the beam, I can learn the weight of any little mass from one grain, or a little more, to the -j-'j,-, of a grain.
Sida 155 - If on the contrary it weigh one grain and a fraction, it will be counterpoised by the heavy gold weight at the extremity, and one or more of the lighter ones placed in some other part of the beam. This beam...
Sida 154 - The fulcrum is a bit of plate brass, the middle of which lies flat on my table when I use the balance, and the two ends are bent up to a right angle so as to stand upright. These two ends .are ground at the same time on a flat hone, that the extreme surfaces of them may be in the same plane ; and their distance is such that the needle when laid across them rests on them at a small distance from the sides of the beam.