The sun compass

The sun compass

Align the sun compass on a well-sunned, horizontal surface to the point where the sun is at noon. Then, for one day, at least before 11 am until after 2 pm, follow the movement of the shadow and mark the points exactly where the tip of the shadow touches one of the circular lines. In the evening, the two points of contact that lie on the same circle are connected with a line. These lines lie exactly in the east-west direction. If you halve these lines and connect the halving points with the centre of the circles, you get a line running exactly north-south.

This method is called the "Indian circle". It was already known in antiquity and is also perfectly suited to be transferred to the scale of a large area, e.g. a schoolyard. All you need is a string compass and a long wooden stick.

The solar compass is easy to build and is excellent as a teaching material at secondary schools.

  • Difficulty and time required low
  • Scope of delivery: Printed cut-out cardboard sheet for assembly with detailed assembly instructions.
  • Size of the finished article: approx. 19 x 30 x 8 cm (L/W/H)
  • 10 piece In stock
  • Delivery time: 2 - 3 Workdays (DE - int. shipments may differ)
1,30 €
incl. 19% VAT , plus shipping costs (Paket)
Please note our minimum order value of EUR 10.
piece