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What’s the time? Flintstone O’clock or the DIY Sundial

July 6, 2012

Here are Phd students  Irene and Rémy, who were showing students the maths of astronomy at the 13e Salon Culture & Jeux  Mathematique in Paris. Their enthusiasm was infectious.

Irene and Rémy were giving students the DIY sundial kit (below), which uses a tooth pick as the sundial arm or pointer to throw the shadow.


This Equatorial Sundial has a dial plate set at an angle of 45 degrees, which is suitable for Paris (See below). You will find the pdf file for this sundial kit here: pic 2 sun dial nth hemisphere.


If , mathspiggies, you want to make a DIY Sundial Kit  for the Southern Hemisphere go to Scienceworks Museum Victoria.

Sundials involve ANGLES

This is geometry peoples, but understanding the angles involved in a sundial is quite tricky. Read on, mathspiggies.

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Nevertheless, sundials are amazing. Here is an awesome Sundial Bridge @ Redding, California.

Or you could grab some chalk and some string and make a HUMAN SUNDIAL @ school.

 It would take all day. 

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