The Sun Compass - AstroMedia
Kit for a simple device that can be used to accurately determine the cardinal points even without a compass. To do this, the movement of the sun's shadow must be observed and marked for one day.
This is how it is done
Align the sun compass on a well-sunny, horizontal surface to the point where the sun is at noon. Then, for one day, at least before 11 a.m. until after 2 p.m., 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.The Indian Circle
This method is called the "Indian circle". It was already known in ancient times and is also very suitable 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.For teachers and pupils
The solar compass is easy to build and is an excellent teaching aid for secondary schools. Like all other astro materials, it can also be used for other group and project work on astronomy and physics.
| Aspiration scale: | Easy |
|---|---|
| Time Line: | 30 Min |
- 1 printed sheet for cutting out of construction cardboard, DIN A4 - 260 g/m²
- Detailed assembly instructions
Size of the finished article: approx. 19 x 30 x 8 cm14 cm, height approx. 4 cm
Construction time: approx. 20 minutes
Distributor:
PGI-Skarabäus, Im Kränzliacker 9, 79576 Weil am Rhein, Germany, www.pgi-shop.de
PGI-Skarabäus, Lerchenstrasse 38, 4147 Aesch, Switzerland, www.pgi-shop.ch
Manufacturer: AstroMedia GmbH, Im Wirrigen 30, 45731 Waltrop, Germany, astromedia.de
Adult supervision:
Children under 14 years of age should only use the kit under adult supervision to avoid risks from improper handling.
Risk of injury:
Be particularly careful when handling pointed and sharp parts! Use sharp tools carefully, if necessary take appropriate safety measures to avoid injuries.
Fire hazard:
Keep away from open fire and heat sources. Model is made of highly flammable materials.
Use of glue:
When using glue, follow the manufacturer's safety instructions. Work in well-ventilated rooms and avoid skin or eye contact.CHF 2.00
CHF 1.90
CHF 1.80
CHF 1.60