Where did the measurement of a degree come from?
George Cantor 1 suggested that its origin can be traced to the fact that the early Babylo- nians reckoned the year to consist of 360 days during which the sum made a complete circle round the earth. This led to be division of the circle into 360 degrees, each degree being the distance traversed by the sun in one day.
At what time after 12 00 noon will the hour hand and minute hand of the clock first form an angle of 1200?
Because the hands movement is continuous (there are no jumps) then to get from 1200(0 degrees), to 1230(165 degrees) the angle must have moved through 120, so the answer is somewhere between 0 and 30 minutes.
What does 3 o’clock mean?
A clock position is the relative direction of an object described using the analogy of a 12-hour clock. For example, 12 o’clock means ahead or above, 3 o’clock means to the right, 6 o’clock means behind or below, and 9 o’clock means to the left.
How much time after 3 o’clock to the hour hand and the minute hand of a clock at right angles for the first time?
After 3 o’clock hour-hand and minute-hand of a clock occur at right angles for the first time at 3 hours 32811 minutes.
At what time between 3 and 4 o’clock will the hands of a clock be at right angle?
At what time between 3 and 4 o’clock will the minute hand and the hour hand are on the same straight line but facing opposite directions ? Explanation: On straight line means 180 degree angle. m = 540/11 = 49 1/11 minutes.
What is the 2 o’clock position?
And ‘ten o’clock’ would be ahead and to your left (60° to the left of straight ahead) and ‘two o’clock’ would be ahead and to your right (60° to the right of straight ahead) — two-thirds of the way between ‘straight ahead’ and ‘directly to your side; abeam’.
What direction is 10 o clock?
It refers to the direction relative to the speaker. Imagine you’re standing in the middle of a clockface (facing the 12): if something is at 10 o’clock, it’s in front of you, slightly to your left.
What does 3 00 mean in the Sopranos?
Based on the character “3-5, 7-9”, we can presume that Christopher’s, and Marianucci’s wake, were both at three o’ clock. So the message to Paulie was that Chris, in death, would get the final laugh against him by upstaging Paulie’s mother’s funeral with his own at 3:00. Taps, lights out, 2200 hours.
Is 12 o’clock AM or PM?
The American Heritage Dictionary of the English Language states “By convention, 12 AM denotes midnight and 12 PM denotes noon. Because of the potential for confusion, it is advisable to use 12 noon and 12 midnight.”
What does the O in O clock mean?
“O” ‘clock is an abbreviation of “of the” clock.
What is the meaning of 12 o clock?
12 o’clock usually refers the time as shown on a 12-hour clock, either noon – 12 o’clock at daytime – or midnight – 12 o’clock at nighttime. 12 o’clock may also refer to: 12-hour clock, a time convention in which the 24 hours of the day are divided into two periods.
Is 12 a mystical number?
The number twelve carries religious, mythological and magical symbolism, generally representing perfection, entirety, or cosmic order in traditions since antiquity.
How do you write 12 o’clock noon?
Noon (or midday) is 12 o’clock in the daytime. It is written as 12 noon, 12 p.m. (for post meridiem, literally “after noon”), 12 pm, or 12:00 (using a 24-hour clock).
How do you write 12am in a 24 hour clock?
- 24 Hour.
- Examples: 12 Midnight = 00:00, 12:35 AM = 00:35.
- Examples: 11:20 AM = 11:20, 12:30 PM = 12:30.
- Examples: 4:45 PM = 16:45, 11:50 PM = 23:50.
- Examples: 00:10 = 12:10 AM, 00:40 = 12:40 AM.
- Examples: 01:15 = 1:15 AM, 11:25 = 11:25 AM.
- Examples: 12:10 = 12:10 PM, 12:55 = 12:55 PM.
Is 11 pm in the morning?
Using numbers from 1 to 12, followed by am or pm, the 12-hour clock system identifies all 24 hours of the day. For example, 5 am is early in the morning, and 5 pm is late in the afternoon; 1 am is one hour after midnight, while 11 pm is one hour before midnight.
Is 11 59 am still morning?
It is one minute before midnight. 11:59 am (before noon in Latin) is one minute prior to noon. It is the last minute of each day, as the next minute (12:00 am) marks the start of the next day. So, it is in the night.
Is 11 am morning or afternoon?
It’s an hour before midnight. If you mean 11am, it’s obviously not afternoon, since it’s before noon. 11 Pm is night. 11 Am is late morning.
What does AM and PM stand for on a clock?
The abbreviation am stands for ante-meridiem (before the Sun has crossed the meridian line), and pm stands for post-meridiem (after the Sun has crossed the meridian line).
Is it 12 am tomorrow or today?
Originally Answered: Is 12:00 AM yesterday, today, or tomorrow? In our system, tonight’s midnight is the first moment of tomorrow. But as for the rest of us – there’s no official answer and the military use a system in which midnight is 0 hours. In that system, tonight’s midnight is the first moment of tomorrow.
What time of day is 12AM?
Another convention sometimes used is that, since 12 noon is by definition neither ante meridiem (before noon) nor post meridiem (after noon), then 12am refers to midnight at the start of the specified day (00:00) and 12pm to midnight at the end of that day (24:00).
Can we say good morning at 12AM?
No, it isn’t. “Good morning” is traditionally usable from sunrise to noon. The time from 12 midnight is only technically ‘morning’ but not socioculturally — and “Good morning” is a sociocultural greeting in nearly all societies and throughout history.
Is 12am Good morning or night?
The few that are pretty much always agreed upon is that 12 PM (Noon) start the afternoon, and 12 AM (Midnight) starts the morning. One thing I will also say is that I agree with many of the other members of the forums is that “good night” should only be used when parting for the night, and never as a greeting.