Image may be NSFW.
Clik here to view.
French astronomer Pierre Jules Cesar Janssen developed a ‘revolver’ that could make 48 exposures in 72 seconds. This device managed to record the transit of Venus around the sun.
Image may be NSFW.
Clik here to view.
French astronomer Pierre Jules Cesar Janssen developed a ‘revolver’ that could make 48 exposures in 72 seconds. This device managed to record the transit of Venus around the sun.