Why, in 1 hour, seconds make 1 more revolution than minutes

No. A sidereal day is 23 hours, 56 minutes and 4 seconds, and a solar day is 24 hours.

The earth is constantly rotating, and at the same time revolving around the sun, and the celestial bodies rise in the east and set in the west, which is actually the phenomenon of the earth's rotation. The cycle of the Earth's rotation, that is, the cycle of the celestial bodies moving on Sunday. The Sun and other stars do not have the same period on Sunday, so there is a difference between the solar day and the sidereal day during the rotation of the Earth.

Sidereal day: When the Earth is located at E1, pay attention to E1, point P and a distant star point A are on a straight line, when the Earth rotates 360°, that is, from E1 to E2, the position of A seems to have reached point B, (actually not moving, because it is too far away) at this time E2, P and B points are still on the straight line, this time is a sidereal day, this time is the real cycle of the Earth's rotation, the time interval (that is, the time between E1, P, A and E2, P, B) is 23 hours, 56 minutes and 4 seconds.

Solar day: When the earth rotates for one week, from e1ps to e2ps, the required time interval is 24 hours, called a solar day, the solar day is not the real cycle of the earth's rotation, but the time interval between the sun passing through the same meridian plane twice in a row, because the earth rotates at the same time, it takes 23 hours and 56 minutes and 4 seconds to rotate for one revolution, and it takes 3 minutes and 56 seconds to rotate for 59 seconds, and the time, the time used for rotation plus revolution is 24 hours, So a sun is 3 minutes and 56 seconds longer than a sidereal day (about 4 minutes).

The difference between a sidereal day and a solar day is the difference in the selection of targets, the former is calculated with the star as the target and the latter as the sun, which is the crux of the matter.

We use solar days.

1 turn per minute in 1 hour is 1 hour, so 1 turn; One revolution in a second is 1 minute, so 60 revolutions. In an hour, seconds are more than minutes and 59 turns.

Because the second hand is in a hurry to find the toilet, and the toilet is behind the minute hand.

After an hour, the hour hand turns 1 12 times on the clock face, and after 40 minutes, it always turns 1 18 times on the clock face.

The calculation process is as follows:

It can be calculated according to the title.

1 12x2 3 = 1 18 (circle).

I'll be happy to answer your questions.

It took a million turns.

60 1000000 60000000 seconds.

16,666 hours of sedan car for 40 minutes.

This is equivalent to 694 days, 10 hours and 40 minutes.

23 times, the first time from zero hour, the second time after one o'clock, and so on until 12 o'clock at noon exactly at the twelfth hour, and then the cycle until the early hours of the morning coincide again at the hour, but this is already in the category of the second day, so it is not counted, so there are only 23 coincidences in a day.

The clock and minutes overlap every hour, and the three hands overlap every hour.

For 24 hours in a day, the clock, minutes, seconds—days overlap 24 times.

The hour and minute hands coincide 22 times a day, respectively:

At 0 o'clock, 12 o'clock, and 24 o'clock at 0 o'clock, the second hand coincides at 0 o'clock.

At 1 o'clock and 13 o'clock, 5 and 5 11 minutes, the second hand is in the second and does not coincide.

At 2 o'clock and 14 o'clock, 10 and 10 11 minutes, the second hand is around the second.

3 o'clock, 15 o'clock 16 and 4 11 minutes, the second hand is in the second.

At 4 o'clock and 16 o'clock, 21 and 9 11 minutes, the second hand is in seconds.

At 5 o'clock and 17 o'clock, 27 and 3 11 minutes, the second hand is in the second.

6 o'clock, 18 o'clock 32 and 8 11 minutes, the following are not counted, they do not coincide.

7 o'clock and 19 o'clock 38 and 2 11 minutes, 8 o'clock and 20 o'clock 43 and 7 11 minutes.

9 o'clock, 21 o'clock 49 and 1 11 minutes.

10 o'clock, 22 o'clock 54 and 6 11 minutes.

So there are only three coincidences in a day: 0 o'clock, 12 o'clock, and 24 o'clock.

Theoretically, it coincides once every hour, 24 hours a day, 24 times.

But in fact, when the hour, minute, and second hands coincide, they do not coincide on the integer point, but they are always a little worse, and it actually takes more than 24 hours to coincide 24 times, so the three of them actually coincide 24 1 = 23 times in 24 hours.

1 overlap in 1 hour, 24 overlaps in 24 hours a day.

Let x be the number that the three needles refer to when they coincide (e.g., 12 o'clock is x, x can be a decimal place, e.g. between 9 o'clock and 10 o'clock x is 9Few).

When the hour hand and the minute hand coincide, the condition met is a: (x*60-x*5) 60=n (n is any integer between 1-24) x*60 is the conversion component of the hour at the current hour hand, and x*5 is the minute at the current minute hand, because the current hour is assumed to be several hours plus x*5 minutes, so x*60-x*5 is set as the value after the conversion of the composition in a few hours, so x*60-x*5 must be divisible by 60.

Get x=12n 11, then when n takes 24 values from 1 to 24, x corresponds to 24 values, and x is about = or or ......, but when n takes , x approx. =, none of which meet the constraints.

That is, a total of 24-2 = 22 coincidences.

2 times, once at 0:00:00, once at 12:00:00, and the others are gone.

Hello, glad to answer for you.

It took a million turns.

60 1000000 60000000 seconds.

16666 hours and 40 minutes.

This is equal to 694 days, 10 hours and 40 minutes.

(1) 60 * 1000000 60000000 that is, 60 million (2) 60000000 3600 = 16666 hours and 2400 seconds, 16666 hours and 2400 60 minutes, 16666 hours and 40 minutes.

3) 16666 24 = 694 days and 10 hours 10 hours 10 * 60 minutes 600 points.

So 60 million seconds, 694 days and 640 minutes.

One revolution of the second hand is equal to one minute.

One revolution of the minute hand equals one hour.

1 hour = 60 minutes = 3600 seconds.

A minute turns 60 squares is equal to one hour.