11/1: After dark box run 1837, I opened the dark box but noticed that the curtain was not closed all the way. There was an opening at the bottom. I closed the dark box and did some more normalization tests for step 21. | 11/1: After dark box run 1837, I opened the dark box but noticed that the curtain was not closed all the way. There was an opening at the bottom. I closed the dark box and did some more normalization tests for step 21. |