4 ms·
For those of you commuting through GCT tonight, look up at the main course ceiling. The ceiling was cleaned in the mid-1990s, but they purposely did not clean a
by julienchastang 8y ago
For those of you commuting through GCT tonight, look up at the main course ceiling. The ceiling was cleaned in the mid-1990s, but they purposely did not clean a small area to show the drastic change. You can actually see it in this picture
https://upload.wikimedia.org/wikipedia/commons/7/7b/NYC_Grand_Central_Terminal_ceiling.jpg https://upload.wikimedia.org/wikipedia/commons/7/7b/NYC_Gran...
Look in the upper-right corner by the ecliptic.
- ip26 8y agoThis was due to coal-fired trains? Cigarettes?
- julienchastang 8y agoYes. Yes. And decades of accumulated grime.
- NeedMoreTea 8y agoDon't forget coal fired heating, and the air prior to clean air legislation. Smogs were a common occurrence and included industrial and coal smoke. Much like is seen in China and India today. Smogs were not just of Victorian London. :)
- lostlogin 8y agoThanks. The tiny bit that goes into the white marble?
- pgrote 8y agoI am not seeing it, either.
- pkamb 8y agoThe hand of one of the Gemini twins?
- Macha 8y agohttps://cnet3.cbsistatic.com/img/eHxpJnqbcVpUw3pRhT5SYFwf4fY=/936x527/2010/07/10/4336f3a2-f0ed-11e2-8c7c-d4ae52e62bcc/Dirty_spot.jpg https://cnet3.cbsistatic.com/img/eHxpJnqbcVpUw3pRhT5SYFwf4fY... Near the top right of the image
- d35007 8y agoYes, mm hmm, the ecliptic. Right. I see it for sure. Couldn't be more clear. But maybe you could circle it for others?
- pryce 8y agoThere are two major yellow curves that cross the center of the image, one plain, the other segmented into a yellow "dotted line", although perhaps "dashed line" is a better term for it. Follow this "dashed line" to very near the top right of the image, past the crab, to the place where it meets the border with white marble, and then just below that, on the marble border is the small square that is basically black.