In this topic, we will calculate how many seconds in the earth's day.
It is no secret to anyone that in one day twenty -four hours. However, this is not always the case. It is customary to believe that a day is a period of time for which the Earth makes a complete revolution around its axis. As it was found out by scientists, our planet cannot make a complete revolution in exactly twenty -four hours. Therefore, the question arose to calculate the exact number of seconds in days.
How to count seconds in days?
In fact, in our day 23 hours 56 minutes and 4 seconds. It is amazing that this time indicator can fluctuate within one minute. Since the speed with which the Earth makes a complete revolution around its axis changes. This is due to friction, which is caused by certain precipitation, as well as due to the movement of geological plates.
- In one day exactly 86,400 seconds. It is very easy to calculate these indicators.
- It is necessary to multiply 60 seconds per minute by 60 minutes in watches . And the resulting amount is shifted for 24 hours in one day:
- 60 x 60 x 24 \u003d 86 400 seconds on one day.
- However, this calculation is not completely accurate, because, as already known, in a day 23 hours 56 minutes and 4 seconds. So:
- 60 x 60 x 24+56 x 60+4 \u003d 86 164 - a more accurate counting of seconds per day.
Although you should not be sure that this calculation is accurate up to a second. Due to the constant change in the time of rotation of the Earth around its axis, the number of seconds per day may change. For simplicity of calculations, it is customary to say that in one day 86 400 seconds.
Video: How many seconds are in a day?
