Home   Calendar   Holidays   Fun   Earth's Rotation Day

Jan
8
Fun Holiday – Earth's Rotation Day

January 8 is Earth’s Rotation Day. The day commemorates when French Physicist, Leon Foucault, demonstrated the Earth rotates on its axis in 1851.

Dark sky at night with star trails.
Dark sky at night with star trails.
The Earth's axis is tilted about 23.5° with respect to its orbital plane around the Sun.
©bigstockphoto.com/vjanez

To prove his theory, Foucault suspended a lead-filled brass sphere, now called the Foucault Pendulum from the top of the Pantheon in Paris.

He showed that the plane of the swing of the pendulum rotated relative to the Earth’s rotation. You can now see the Foucault Pendulum demonstrating the rotation of the Earth in science museums around the world.

How to Celebrate?

  • Visit your local space and science museum to learn more about the Earth’s rotation and what effect it has on humans.
  • If you have kids, what about making a model of the Earth and the Sun with them, so that they can learn more about the Earth’s rotation?

Did You Know…

...that the speed of the Earth's rotation can change from day to day and from year to year?

Earth's Rotation Day Observances

Fun Holiday: Earth's Rotation Day Observances
YearWeekdayDateName
2017SunJan 8Earth's Rotation Day
2018MonJan 8Earth's Rotation Day
2019TueJan 8Earth's Rotation Day
2020WedJan 8Earth's Rotation Day
2021FriJan 8Earth's Rotation Day
2022SatJan 8Earth's Rotation Day
2023SunJan 8Earth's Rotation Day
2024MonJan 8Earth's Rotation Day
2025WedJan 8Earth's Rotation Day
2026ThuJan 8Earth's Rotation Day

See all Fun Holidays

SMTWTFS
1234567
891011121314
15161718192021
22232425262728
293031    
February 2017
SMTWTFS
   1234
567891011
12131415161718
19202122232425
262728    
March 2017
SMTWTFS
   1234
567891011
12131415161718
19202122232425
262728293031 
April 2017
SMTWTFS
      1
2345678
9101112131415
16171819202122
23242526272829
30      
May 2017
SMTWTFS
 123456
78910111213
14151617181920
21222324252627
28293031   
June 2017
SMTWTFS
    123
45678910
11121314151617
18192021222324
252627282930 
July 2017
SMTWTFS
      1
2345678
9101112131415
16171819202122
23242526272829
3031     
August 2017
SMTWTFS
  12345
6789101112
13141516171819
20212223242526
2728293031  
September 2017
SMTWTFS
     12
3456789
10111213141516
17181920212223
24252627282930
October 2017
SMTWTFS
1234567
891011121314
15161718192021
22232425262728
293031    
November 2017
SMTWTFS
   1234
567891011
12131415161718
19202122232425
2627282930  
December 2017
SMTWTFS
     12
3456789
10111213141516
17181920212223
24252627282930
31      

See all Fun Holidays

Advertising

January 8, 2017 – Other Holidays this day


Create Calendar with Holidays


Add Event to Calendar

Other Fun Holidays around January 8

6 Jan

Bean Day

Beans are healthy and delicious. Add them to your daily diet starting today.

7 Jan

Old Rock Day

Celebrate the form, function, and history of old rocks.

9 Jan

Word Nerd Day

Celebrate your vocabulary and your love for languages.