the black spot from the diary (image) University of Southern Denmark Share Print E-Mail Caption The 3x3 mm black spot from Brønlund's diary. Credit Kaare Lund Rasmussen/SDU. Credit Kaare Lund Rasmussen/SDU Usage Restrictions w credit Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.