Secchi Disk Simulator
(in case anyone's interested)
Here's Father Secchi, the inventor of the Disk:
He was really an astronomer; he also discovered a comet, and he met Matthew Fontaine Maury.
Secchi disk simulator
I mentioned this on Watts Up with That:
Secchi Disk Simulator
(in case anyone's interested)
Here's Father Secchi, the inventor of the Disk:
He was really an astronomer; he also discovered a comet, and he met Matthew Fontaine Maury.
Secchi Disk Simulator
(in case anyone's interested)
Here's Father Secchi, the inventor of the Disk:
He was really an astronomer; he also discovered a comet, and he met Matthew Fontaine Maury.