ErikStirling
New Member
- Joined
- Jan 14, 2018
- Messages
- 0
- Reaction score
- 0
I use this model to measure when spring has arrived with my grandchildren. Living on the latitud 55,3 N it takes a while before the insolation is high enough to beat the internal friction.
Year: 1980-ish
Model: Solar Powered
Engine: Stirling
Year: 1980-ish
Model: Solar Powered
Engine: Stirling