The description and use of the globes and the orrery: To which is prefix'd, by way of introduction, a brief account of the solar system — John Shaqi
The description and use of the globes and the orrery: To which is prefix'd, by way of introduction, a brief account of the solar systemHarris, Joseph
History
The description and use of the globes and the orrery: To which is prefix'd, by way of introduction, a brief account of the solar system
Harris, Joseph
Astronomical models; Globes
Vicissitudes of Day and Night are really made by the
motion of the Earth round her Axis, in 24 Hours,
the Sun standing still_ 119
PROB. XVI. _To Explain in general the Alteration
of Seasons, or Length of the Days and Nights, made in
all places of the World, by the Sun’s, or the Earth’s
Annual motion in the Ecliptic_ 121
PROB. XVII. _To shew by the Globe, at one View,
the Length of the Days and Nights, at any particular
place, at all times of the Year_ 128
PROB. XVIII. _The Latitude of any place, not
exceeding 69½ Degrees, and the Day of the Month being
given; to the time of Sun-rising and Setting, and the
length of the Day and Night_ 136
PROB. XIX. _To find the length of the longest and shortest
Day and Night in any given place, not exceeding 66½
Degrees of Latitude_ 137
PROB. XX. _To find in what Latitude the longest Day is,
of any given length less than 24 Hours_ 139
PROB. XXI. _A Place being given in one of the_
Frigid Zones _(suppose the Northern) to find what number
of Days (of 24 Hours each) the Sun doth constantly shine
upon the same, how long he is absent, and also the first
and last day of his appearance_ 140
PROB. XXII. _To find in what Latitude the longest Day is,
of any given length, less than 182 natural Days_ 141
PROB. XXIII. _The Day of the Month being given; to
find when the Morning and Evening_ Twilight _begins
and ends, in any place upon the Globe_ 142
PROB. XXIV. _To find the time when total Darkness
ceases, or when the Twilight continues from Sun-setting
to Sun-rising, in any given place_ 144
PROB. XXV. _The Day of the Month being given; to
find those places of the_ Frigid Zones, _where the Sun
begins to shine constantly without setting; and also
those places where he begins to be totally absent_ 146
PROB. XXVI. _The Latitude, the Sun’s Place, and his
Altitude being given; to find the Hour of the Day,
and Sun’s Azimuth from the Meridian_ 149
PROB. XXVII. _The Latitude, Hour of the Day, and
the Sun’s Place being given; to find the Sun’s Altitude_ 150
PROB. XXVIII. _The Latitude of the Place, and the
Day of the Month being given; to find the depression
of the Sun below the Horizon, and his Azimuth, at any
Hour of the Night_ 151
PROB. XXIX. _The Latitude of the Sun’s Place, and his
Azimuth being given; to find his Altitude, and the
Hour_ 152
PROB. XXX.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account