Fibonacci Spiral Clock

Maths Gear Verified independent store

→

This unusual clock tells the time with a spiral arm. To add a little mathematical beauty, the arm is a Fibonacci spiral, meaning the line moves further from the centre by a factor of 1.618... (the Golden Ratio) for every quarter turn. What about every 12th of a turn - the hours of a clock? We'll leave that up to you to work out. Check your working by measuring the clock itself! Dimensions: 30cm x 10 cm. Takes 1 AA battery. Price = 5987 pence (the 783rd prime number) = £59.87 Show more