Canada's largest sundial is located at Bud Miller Park Alberta.
Sundials are perhaps the most ancient of scientific instruments, and the earliest known form of time-keeping. They probably started life as poles in the ground with the direction and length of the shadow giving an approximate time of day. It was not until around the first century A.D. that it was demonstrated that a gnomon set parallel to the Earth's axis would cast a shadow in the same direction at the same time every day of the year.
Some Types of Sundials
- Analemmatic
- Reflected ceiling
- Polar
- Equatorial
- Horizontal dial
- Vertical direct north sundial
- Declining sundials
- Portable dials
To assist the Sundialists that watch this page could you please
Include photos of the GPSr showing:
- Location
- Time (compared with sundial time)
To sundialists the comparision between solar time (sundial time) and standard time is invaluable for determining if the sundial was properly designed.
Some interesting links:
North American Sundial Society
NASS Registry
Note: other locationless cache rules apply - one find per 'cacher, each site can be logged only once, etc.