This could well mean that this timepiece was used for astronomical observations on a temporary location. TIME CONVERSION CHART (Minutes to Decimal Hours) Minutes Decimal Hours Minutes Decimal Hours Minutes Decimal Hours 1. Because of this, astronomical observations are still noted in decimals. Theyre called hydrogen masers, and they are extremely important atomic clocks. The screws tot he sides make the clock tick regularly when the surface is not level.Ī remark about the astronomer Pierre-Simon Laplace (founder of modern astronomy who lived from 1749 until 1827) who had a decimal watch which he used for all his observations and calculations. The handle obviously was used to transport the clock so this timepiece was made for use on location. Everybody knows that there are 24 hours in a day, 60 minutes in an hour, and 60 seconds in minute. Now arises the question what was this timepiece used for? What clues can find in the unusual handle on top and the two screws tot he sides? This is based on the way the movement and case are built. For that, we need to look at the above chart. Now let's convert 23 minutes into decimal hours. Even more, this chart easily converts the minutes from base 60 to base 10. This thoroughly modern system had a few practical benefits, chief among them being a simplified way to do time-related math: if we want to know when a day is 70 complete, decimal time simply. Using it, you can easily discover the decimal time. But it never caught hold and was abandoned due to public disobedience, the lack of actual decimal clocks and the common resistance that people hold to change.īut this clock isn’t French and wasn’t made at the end of the 18th Century! To our opinion this clock was made in Germany around 1840. But in 1793, the French smashed the old clock in favor of French Revolutionary Time: a 10-hour day, with 100 minutes per hour, and 100 seconds per minute. To help people transition to the new time format, clock manufacturers began producing clocks with faces showing both decimal time and the old time. ![]() There was a short period in history during the French Revolution, when decimal time was introduced in stead of our present dodecimal time based on 12. Time could be written fractionally, for example, 6 hours 42 minutes became 6.42 hours and both meant that same thing. To get the total decimal seconds we use the formula: s (hours 3600) + (minutes 60) + seconds. To get the total decimal minutes we use the formula: m (hours 60) + minutes + (seconds / 60). This means that the dial reads 10 hours of 100 minutes of 100 seconds. To get the total decimal hours we use the formula: h hours + (minutes / 60) + (seconds / 3600). It is the decimal numbering that makes this clock very rare. This is a dial which has several callibrations for the different hands to make reading it more easy. ![]() The ‘regulator’ dial is unusual for table clocks. ![]() Although it is not uncommon to find clocks that are unusual, this one really fitted in the ‘never seen before’ category.
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