Construction of a telescope: | ||||||||||||||||||||||||||||||
| 
  STATUS OF THIS STEP not started
 7.1 PRINCIPLE Not yet determined 
 
 7.2 MATERIALS 
 
 
 
 
 
 
 
 
 
  | 
Construction of a telescope: | ||||||||||||||||||||||||||||||
| 
  STATUS OF THIS STEP not started
 7.1 PRINCIPLE Not yet determined 
 
 7.2 MATERIALS 
 
 
 
 
 
 
 
 
 
  | 
Telescope construction