Astronomy Explained Upon Sir Isaac Newton's Principles: And Made Easy to Those who Have Not Studied Mathematics : to which are Added, a Plain Method of Finding the Distances of All the Planets from the Sun, by the Transit of Venus Over the Sun's Disc, in the Year 1761 : an Account of Mr. Horrox's Observation of the Transit of Venus in the Year 1639 : And, of the Distances of All the Planets from the Sun, as Deduced from Observations of the Transit in the Year 1761Matthew Carey, 1809 - 533 páginas |
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Página 12
... revolutions round their centres of motion , and are retained in their orbits . Those forces are of two kinds , viz . the centrifugal , and the centripetal . Centrifugal or projectile force , may be considered as a sin- gle impulse ...
... revolutions round their centres of motion , and are retained in their orbits . Those forces are of two kinds , viz . the centrifugal , and the centripetal . Centrifugal or projectile force , may be considered as a sin- gle impulse ...
Página 14
... revolution of the sun , moon , or stars , round the earth . The day is variously distinguished and denominated , according to circumstances , as follows : - 1. An artificial day , is the interval of time between sun- rising and sun ...
... revolution of the sun , moon , or stars , round the earth . The day is variously distinguished and denominated , according to circumstances , as follows : - 1. An artificial day , is the interval of time between sun- rising and sun ...
Página 16
... revolution round the sun . Ellipse or ellipsis , a plane curvilineal figure , which may be described round two centres thus . - Take a thread of any determinate length , tie its two ends together , and throw the loop round two pins ...
... revolution round the sun . Ellipse or ellipsis , a plane curvilineal figure , which may be described round two centres thus . - Take a thread of any determinate length , tie its two ends together , and throw the loop round two pins ...
Página 19
... revolution through the zodiac === 27 d . 7 h . 43 m . 8 s . Lunar synodical month , or lunation , the time between one new moon , or conjunction of the sun and moon , and the next at a mean = 29d . 12h . 44m . 3s . 11t . Solar month ...
... revolution through the zodiac === 27 d . 7 h . 43 m . 8 s . Lunar synodical month , or lunation , the time between one new moon , or conjunction of the sun and moon , and the next at a mean = 29d . 12h . 44m . 3s . 11t . Solar month ...
Página 20
... revolution round its centre of motion . Perioeci , such as live in opposite points of the same parallel of latitude . Periscii , those whose shadows turn quite round during the day , the sun not setting - and such , at certain times of ...
... revolution round its centre of motion . Perioeci , such as live in opposite points of the same parallel of latitude . Periscii , those whose shadows turn quite round during the day , the sun not setting - and such , at certain times of ...
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Términos y frases comunes
angle appears April Aries ascending node beginning of egress body circle Clock conjunction degrees diameter diurnal diurnal motion Dominical letter Earth's axis Earth's centre eclipse equal equator equinoctial equinox fixed stars full Moon globe goes round half heavens horizon horizontal parallax inclined Julian period July June Jupiter latitude Leap-Year London longitude lunar lunation March mean Anomaly mean distance mean new Moon Mercury meridian miles minutes Moon's orbit motion noon north pole observed opposite parallel path penumbra planets plate polar circles revolution right line rising round the Earth round the Sun satellites Saturn seconds seen semidiameter Sept shewn side signs solar south pole subtract Sun and Moon Sun's centre Sun's disc Sun's mean suppose tides tion total ingress transit transit of Venus tropic tropic of Cancer tropic of Capricorn true turns round Venus Venus's