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DIY Science Projects

Perpetual calendar

This calendar indicates the day of the week of every date between 1600 and 2299.

 

With it, you can know what day of the week you were born or if you will have the chance to celebrate your 50th anniversary on a Saturday.

 

This project can be part of the study of calenders from the astronomical or historical point of view.


Difficulty
Medium
Duration
2h
Rating
4/5
Price
~ 5 CHF
Testimonials
0

Material
Tools
Blueprints&Plans
Building
Cut a wood slat in 4 parts: two 17 cm long pieces two 4,8cm long pieces   Rub the ends with sandpaper. Drill three holes in the two 17 cm boards with a 4 mm bit (the picture shows the locations of the holes) Download and print the file face_calperpet.pdf from the blueprints/plans section.   Cut one of the rectangles (the ... With the help of a center square, mark the center of each sides of the three cylinders.   Next, drill them with a 3 mm bit. Print the file cylindres_claperpet.pdf (downloadable form the blueprints/plans section).   Cut out the three ... Using 3 screws, attach the 3 cylinders to one of pierced wood board.   You must organize the cylinders in the right ... Tighten the same way the bottoms of the three cylinders to the other board.   Glue the two small boards on the edges to ... The front of the calendar stuck on the cardboard should now be dry.   If it's the case, cut out the three windows with a box ... Glue the cardboard front of the calendar on the wooden frame.   With a screwdriver, adjust if necessary the height of ...
How to use
Links&References
Date29.04.2013
AuthorEmmanuelle
Organizationinfo-energie
TranslatorMartin
Final purposeOthers
FieldOthers
Languagefrançais deutsch english
Licence