What a great project. How accurate will this be? My 8 year old daughter is here asking me questions. Dave McArthy´s latest amazing offering ..Nokian Snow Tires
There is a correction factor depending on the time of year given by what is called ‘the equation of time.’ It ranges from around 16 minutes fast to 14 minutes slow and needs to be allowed for with any sundial. So you can have fun and know it’s right to within about 15 minutes, or you can make up a correction table or read it off a graph like the one on the link.
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What a great project. How accurate will this be? My 8 year old daughter is here asking me questions.
Dave McArthy´s latest amazing offering ..Nokian Snow Tires
There is a correction factor depending on the time of year given by what is called ‘the equation of time.’ It ranges from around 16 minutes fast to 14 minutes slow and needs to be allowed for with any sundial. So you can have fun and know it’s right to within about 15 minutes, or you can make up a correction table or read it off a graph like the one on the link.
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