German physicist known for his significant contributions to the fields of semiconductors and developing the theory of electron and ion emission phenomena. Among his several inventions were the screen-grid vacuum tube, the pentode and the ribbon microphone and ribbon loudspeaker (the latter two in collaboration with Erwin Gerlach). The Schottky effect, Schottky barrier, Schottky contact and Schottky anomaly were all products of his research.
In it's modern form, Sukodu was first published on November 12, 2004, in The Times, UK. The newspaper received a "complaint" the very next day from one Ian Payn. He had got so engrossed in the puzzle that he missed his bus. [more...]