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this is the question in whole world that why there are 24 hours in a day .

24 hours concept of time may be started by egyptian civilization

and this concept is so perfect till now .

but our current mordern genration dont know why the chose number 24

so i am shairing here my calculation about 24 hours

calculation of 24 hours in a day on tHE EARTH

calculation of 24 hours in a day

Venus=shukra=planet name

our 24 hours in a day is depend on the ratio of the rotation of planet venus and earth .

because of writing system of time is in raitio symbol not in point .like 23:56

Venus (one rotation on its own axis) = 243 Earth day

Venus ( one round arround the sun ( orbit )= 225 earth day


243 – 225 = 18

225 x 243 = 54 675

54 675 / 18 = 3 037.5

3 037.5 / 243 = 12.5

3 037.5 / 225 = 13.5

12.5 + 13.5 = 26

26 / 2 = 13

18 x 13 = 234

every next morning on venus will be

234 / 2 = 117 days time of earth

it means one Venus day = 117 earth day aprox.

actual Venus day 54675 / 234 =233.6538

233.6538 / 2 = 116.826 earth days .


18 + 13 = 31

31 / 2 = 15.5

earth one year

365 / 15.5 = 23.5

actual earth year = 365.256 days

365.256 / 15.5 = 23.564

one earth rotation as par nasa 23 hour 56 minut 4 sekend.

but now there are 24 hour in a day

this is not only round off in full hour without aney reason

there are 366 full rotation in 365 days (mornings) apear on earth

so

23 hour 56 minut 4 sekend. x 366 / 365 = 24 hours

so this is the complete calculation of 24 hours in a day .

now if you want to know the Synodic period

234 + 365.256 - 15.5 = 583.756 earth days


thanks a lot for reading my calculation .

also you can see this vedio

http://www.youtube.com/watch?v=mi-BBI5iU_Q