A general view of the sciences and arts, Τόμος 1 |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 16.
Σελίδα 9
... moving body runs . Relative motion is a change of the relative place of the moving body ; and its celerity , con- sequently , is estimated by the quantity of rela- tive space through which it runs . Others divide motion into proper and ...
... moving body runs . Relative motion is a change of the relative place of the moving body ; and its celerity , con- sequently , is estimated by the quantity of rela- tive space through which it runs . Others divide motion into proper and ...
Σελίδα 127
... moving round him , the sun has also a small movement round the centre of gravity of the system . A third movement of the sun indicates , that , with his planets , he also revolves round some central body . The spots on the sun were ...
... moving round him , the sun has also a small movement round the centre of gravity of the system . A third movement of the sun indicates , that , with his planets , he also revolves round some central body . The spots on the sun were ...
Σελίδα 129
... moving at the rate of 69,000 miles every hour , she revolves round the sun in 224 days , 17 hours , of our time . Her diurnal motion is performed in twenty - three hours and twenty minutes , according to one astronomer , Cassini ; but ...
... moving at the rate of 69,000 miles every hour , she revolves round the sun in 224 days , 17 hours , of our time . Her diurnal motion is performed in twenty - three hours and twenty minutes , according to one astronomer , Cassini ; but ...
Σελίδα 132
... moving at the average rate of 58,000 miles every hour ; but this motion of the earth in its orbit is irregu lar . The movement of the earth round its own axis from west to east , occasions the apparent diurnal motion of the heavenly ...
... moving at the average rate of 58,000 miles every hour ; but this motion of the earth in its orbit is irregu lar . The movement of the earth round its own axis from west to east , occasions the apparent diurnal motion of the heavenly ...
Σελίδα 144
... moving at the average rate of 47,000 miles an hour ; and moves round his own axis from west to east in somewhat more than twenty - four hours . By his diurnal motion the equator of Mars is carried round at the rate of 556 miles every ...
... moving at the average rate of 47,000 miles an hour ; and moves round his own axis from west to east in somewhat more than twenty - four hours . By his diurnal motion the equator of Mars is carried round at the rate of 556 miles every ...
Συχνά εμφανιζόμενοι όροι και φράσεις
algebra arch arithmetic astronomy axis body breadth called cask centre CHAP circle circumference column compound cone conic sections contained Corollary cube cyphers decimals definition degrees denomination denotes diameter distance diurnal motion divided dividend division divisor earth ellipse equator Example expressed feet figure fluid four frustum gallons geometrical series geometry given numbers globe gravity greater height horizontal hundred hyperbola hypothenuse idea improper fraction inches instrument integers length logarithms magnitude mathematics Mercury meridian miles mixed mathematics moon motion Multiply opposite angles parabola parallel perpendicular plane triangle plate poles proportion quadrant quantity quotient radius remainder right angles right line rule for finding sailing secant sexagesimal ship sides signifies solid space specific gravity sphere spherical trigonometry square subtract supposed surface tangent telescope term theorem thousand tion TRIGONO trigonometry vertex vertical arc vessel vulgar fractions wheel
Δημοφιλή αποσπάσματα
Σελίδα 60 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Σελίδα 227 - Every body continues in a state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by a force impressed upon it.
Σελίδα 228 - To every action there is always opposed an equal reaction: or, the mutual actions of two bodies upon each other are always equal and directed to contrary pans.
Σελίδα 32 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees...
Σελίδα 90 - To reduce a mixed number to an improper fraction, Multiply the whole number by the denominator of the fraction, and to the product add the numerator; under this sum write the denominator.
Σελίδα 228 - The change of motion is proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.
Σελίδα 55 - PROBLEM I. To find the area of a parallelogram, whether it be a square, a rectangle, a rhombus, or a rhomboides.
Σελίδα 157 - It is bounded on the North by the Arctic Ocean ; on the East by the Pacific Ocean ; on the South by the Indian Ocean ; and on the West by the Red Sea, the Mediterranean Sea, the Caspian Sea, and the Oural Mountains.
Σελίδα 97 - Multiply the first and second terms together, and divide the product by the third ; the quotient will be the answer in the same denomination as the middle term was reduced into.
Σελίδα 19 - ... When a straight line standing on another straight line, makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it. 11. An obtuse angle is that which is greater than a right angle. 12. An acute angle is that which is less than a right angle. 13. A term or boundary is the extremity of any thing.