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The fact thread
- Thread starter Alolan_Apples
- Start date
Cuppycakez
Senior Member
"The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear." Found that on some Random Facts site. 
The sum of the first ten squares is 385.
At the current rotation and revolution speed, the Earth actually rotates 366.2428856599044 times each time it makes a full orbit around the Sun.
Calculating how many days in a revolution (year).
Calculating how many rotations in a year:
- 365x4=1,460 (four years)
- 1,460+1=1,461 (including extra day for leap year)
- 1,461x25=36,525 (there are 25 four-year cycles every century)
- 36,525-1=36,524 (the 100th year does not have an extra day unlike most 4th years)
- 36,524x4=146,096 (400 years)
- 146,096+1=146,097 (400th year, however, is a leap year)
- 146,097/400=365.2425 (the actual number of days in a year if there are 24 hours a day)
Calculating how many rotations in a year:
- There are 24 hours in a day, but the Earth takes 23 hours, 56 minutes, and 4 seconds to make a full rotation.
- 24x60x60=86,400 (number of seconds in a day)
- 23x60x60+56x60+4=86,164 (number of seconds in a rotation period)
- 86,164/60=23.93444... (number of hours in a rotation in decimal form)
- 365.2425*24=8,765.82 (number of hours in an actual year)
- 8,765.82/23.93444=366.2428856599044 (number of rotations in a revolution)
