 | John Lee Comstock - Physics - 1813 - 448 pages
...we must consider the sun as moving around the ecliptic, while the earth revolves on her axis. 842. Equal, or mean time, is that which is reckoned by...in the heavens, as indicated by a meridian line, or sun dial. 843. Were the earth's orbit a perfect circle, fig. 207, and her axis perpendicular to the... | |
 | Jeremiah Joyce - Science - 1825 - 310 pages
...to go without any variations, and to measure exactly 24 hours from noon to noon. And apparent time is measured by the apparent motion of the sun in the heavens, or by a good sun.dial. Charles. And what do you mean, sir, by the equation of time ? Tutor. It is the... | |
 | Jeremiah Joyce - Astronomy - 1828 - 262 pages
...supposed to go without any variation, and to measure exactly 24 hours from noon to noon. And apparent time is measured by the apparent motion of the sun in the heavens, or by a good sundial. Charles. And what do you mean, sir, by the equation of time ? Tutor. It is the... | |
 | Jeremiah Joyce - Science - 1829 - 410 pages
...to go without any variations, and to measure exactly 24 hours from noon to noon. And apparent time is measured by the apparent motion of the sun in the heavens, or by a good sun-dial. Tutor. It is the adjustment of the difference of time, as shown by a well-regulated... | |
 | John Lee Comstock - Physics - 1831 - 312 pages
...explanation, we must consider the sun as moving around the ecliptic, while the earth revolves on her axis. Equal, or mean time, is that which is reckoned by...day, to 12 o'clock on the next day. Apparent, time, ia that, which is measured by the apparent motion of the sun in the heavens, as indicated by a meridian... | |
 | John Lee Comstock - Physics - 1832 - 308 pages
...pupil, by means of an artificial globe, but perhaps it will be understood by the following diagram. Equal, or mean time, is that which is reckoned by...in the heavens, as indicated by a meridian line, or sun dial. LetANBS,&g. 203, be the concave of the heavens, in the centre of which is the earth. Let... | |
 | John Lee Comstock - Physics - 1835 - 308 pages
...pupil, by means of an artificial globe, but perMjw it will b» understood by the following diagram. Equal, or mean time, is that which is reckoned by...measured by the 'apparent motion of the sun in the hoax ens, as indicated by a meridian line, or sun dial. Let ANBS,6g. 203, be the concave of the heavens,... | |
 | John Lee Comstock - 1835 - 308 pages
...pupil, by means of an artificial globe, but perhaps it will be understood by the following diagram. Equal, or mean time, is that which is reckoned by...on one day, to 12 o'clock on the next day. Apparent tune, is that which is measured by the apparent motion of the sun in the heavens, as indicated by a... | |
 | John Lee Comstock - Physics - 1836 - 308 pages
...pupil, by means of an artificial globe, but perhaps it will be understood by the following diagram. Equal, or mean time, is that which is reckoned by...in the heavens, as indicated by a meridian line, or sun dial. What i? the difference between the time of a sun dial and a clock called t What are the causes... | |
 | John Lee Comstock - Physics - 1838 - 356 pages
...we must consider the sun as moving around the ecliptic, while the earth revolves on her axis. 842. Equal, or mean time, is that which is reckoned by...in the heavens, as indicated by a meridian line, or sun dial. 843. Were the earth's orbit a perfect circle, fig. 207, and her axis perpendicular to the... | |
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Equal or mean time, is that which is reckoned by a clock, supposed to indicate exactly 24 hours, from 12 o'clock on one day to 12 o'clock on the next day. Apparent time, is that, which is measured by the apparent motion of the Sun in the heavens, as indicated... 
