4 ms·

Wow, from a quick browse, I think the moon crater image from the 1850s is what I find most technically impressive because it intersects telescope optics, negati

Wow, from a quick browse, I think the moon crater image from the 1850s is what I find most technically impressive because it intersects telescope optics, negative chemistry, and printing chemistry. A 3683x2920 pixel image can be downloaded. http://search.getty.edu/museum/records/musobject?objectid=44715 http://search.getty.edu/museum/records/musobject?objectid=44...

eksith 13y ago
Considering the technology available at the time, the detail is exquisite. FYI, this is Copernicus https://en.wikipedia.org/wiki/Copernicus_(lunar_crater) https://en.wikipedia.org/wiki/Copernicus_(lunar_crater)
- emptybits 13y ago
  Thanks for the ID on the crater. Observation... Copernicus is 93 km in diameter. The crater in the old print is approximately 9.3 cm in diameter. So in 1850, that astrophotographer printed a detailed 1:1,000,000 scale lunar map of that region. Today, we can download a 1:1,000,000 scale lunar map of that region by printing the following doc at 30"x30" page size: http://planetarynames.wr.usgs.gov/images/Lunar/lac_58_wac.pdf http://planetarynames.wr.usgs.gov/images/Lunar/lac_58_wac.pd... Then, for apples-to-apples, you can trim Copernicus out of the modern print in a 13 x 16.5 cm rectangle. Voila, a 160-year A-B of knowledge and techniques. :) (Someone fix my math if it's off.)
  - DanBC 13y ago
    > Copernicus is 93 km in diameter. With a big enough computer the mapping data could be imported into Minecraft. (http://www.minecraftforum.net/topic/992750-mapping-using-real-world-terrain-data/ http://www.minecraftforum.net/topic/992750-mapping-using-rea...) Sticking to one MC block = 1 metre would be tricky with 93 km. And there might be hight limit problems too.
trafficlight 13y ago
No idea who might've done this? It's absolutely incredible.
- alan_cx 13y ago
  The name at on the image is this bloke: http://en.wikipedia.org/wiki/John_Herschel http://en.wikipedia.org/wiki/John_Herschel
fluxon 13y ago
Now up at http://enwp.org/John_Herschel http://enwp.org/John_Herschel and http://enwp.org/Copernicus_(lunar http://enwp.org/Copernicus_(lunar crater)

eksith 13y ago

Considering the technology available at the time, the detail is exquisite. FYI, this is Copernicus https://en.wikipedia.org/wiki/Copernicus_(lunar_crater) https://en.wikipedia.org/wiki/Copernicus_(lunar_crater)

emptybits 13y ago
Thanks for the ID on the crater. Observation... Copernicus is 93 km in diameter. The crater in the old print is approximately 9.3 cm in diameter. So in 1850, that astrophotographer printed a detailed 1:1,000,000 scale lunar map of that region. Today, we can download a 1:1,000,000 scale lunar map of that region by printing the following doc at 30"x30" page size: http://planetarynames.wr.usgs.gov/images/Lunar/lac_58_wac.pdf http://planetarynames.wr.usgs.gov/images/Lunar/lac_58_wac.pd... Then, for apples-to-apples, you can trim Copernicus out of the modern print in a 13 x 16.5 cm rectangle. Voila, a 160-year A-B of knowledge and techniques. :) (Someone fix my math if it's off.)
- DanBC 13y ago
  > Copernicus is 93 km in diameter. With a big enough computer the mapping data could be imported into Minecraft. (http://www.minecraftforum.net/topic/992750-mapping-using-real-world-terrain-data/ http://www.minecraftforum.net/topic/992750-mapping-using-rea...) Sticking to one MC block = 1 metre would be tricky with 93 km. And there might be hight limit problems too.

trafficlight 13y ago

No idea who might've done this? It's absolutely incredible.

alan_cx 13y ago
The name at on the image is this bloke: http://en.wikipedia.org/wiki/John_Herschel http://en.wikipedia.org/wiki/John_Herschel

fluxon 13y ago

Now up at http://enwp.org/John_Herschel http://enwp.org/John_Herschel and http://enwp.org/Copernicus_(lunar http://enwp.org/Copernicus_(lunar crater)