Although history never defined a singular person, it is widely believed the Babylonians divided time into increments using a base system of 60, creating the basis for modern time as well still know it.
------- The Egyptians had subdivided daytime and nighttime into twelve hours each since at least 2000 BC, hence their hours varied seasonally. The Hellenistic astronomers Hipparchus (c. 150 BC) and Ptolemy (c. AD 150) subdivided the day sexagesimally and also used a mean hour (1/24 day), but did not use distinctly named smaller units of time. Instead they used simple fractions of an hour.
The day was subdivided sexagesimally, that is by 1/60, by 1/60 of that, by 1/60 of that, etc., to at least six places after the sexagesimal point (a precision of less than 2 microseconds) by the Babylonians after 300 BC, but they did not sexagesimally subdivide smaller units of time. For example, six fractional sexagesimal places of a day was used in their specification of the length of the year, although they were unable to measure such a small fraction of a day in real time. As another example, they specified that the mean synodic month was 29;31,50,8,20 days (four fractional sexagesimal positions), which was repeated by Hipparchus and Ptolemy sexagesimally, and is currently the mean synodic month of the Hebrew calendar, though restated as 29 days 12 hours 793 halakim (where 1 hour = 1080 halakim). The Babylonians did not use the hour, but did use a double-hour, a time-degree lasting four of our minutes, and a barleycorn lasting 3? of our seconds (the helek of the modern Hebrew calendar).
In 1000, the Muslim scholar al-Biruni gave the times of the new moons of specific weeks as a number of days, hours, minutes, seconds, thirds, and fourths after noon Sunday. In 1267, the medieval scientist Roger Bacon stated the times of full moons as a number of hours, minutes, seconds, thirds, and fourths (horae, minuta, secunda, tertia, and quarta) after noon on specified calendar dates. Although a third for 1/60 of a second remains in some languages, for example Polish (tercja) and Arabic (?????), the modern second is subdivided decimally.
The first attempt at creating a clock that could measure time in seconds was created by Taqi al-Din at the Istanbul observatory of al-Din between 1577-1580. He called it the "observational clock" in his In the Nabik Tree of the Extremity of Thoughts, where he described it as "a mechanical clock with three dials which show the hours, the minutes, and the seconds." He used it as an astronomical clock, particularly for measuring the right ascension of the stars.
http://en.wikipedia.org/wiki/Second
A minute is one of a unit in time. One minute equals 60 seconds. One minute is 1/60 of an hour. A second is also one of a unit in time. One second is 1/3600 of an hour.
18,070 seconds
Minute.
One ton per hour equals 33.3 pounds per minute.
52 miles per hour equals 274560 feet per hour, divided by 60: equals 4576 feet per minute, divided by 60: equals 76.266666 or 76.27 feet per second.
A minute is one of a unit in time. One minute equals 60 seconds. One minute is 1/60 of an hour. A second is also one of a unit in time. One second is 1/3600 of an hour.
Minute is to hour as second is to minute. Just as an hour is made up of minutes, a minute is made up of seconds.
18,070 seconds
Minute.
24km per hour 400m per minute 666.66 (repeater) centimeters per second
The minute hand of any analog clock moves 1 revolution per hour. (60 minutes to an hour) The second hand makes 60 revolutions an hour. (Each tick represents one second, one revolution per minute, equals 60 revolutions an hour.)
One ton per hour equals 33.3 pounds per minute.
52 miles per hour equals 274560 feet per hour, divided by 60: equals 4576 feet per minute, divided by 60: equals 76.266666 or 76.27 feet per second.
March 14th on the 15th hour 9th minute and 2nd second. 3.141592 equals pi
50 gallons of water per minute equals 3,000 gallons per hour.
1/240 hour.
The letter E.a seconda minutean hour