Mount Tambora (or Tamboro) is an active stratovolcano, also known as a composite volcano, on the Sumbawa islands, Indonesia. Sumbawa is flanked both to the north and south by oceanic crust, and Tambora was formed by the active subduction zones beneath it. This raised Mount Tambora as high as 4,300 m (14,100 ft), making it one of the tallest peaks in the Indonesian archipelago, and drained off a large magma chamber inside the mountain.
The irony mark or irony point (؟) is a proposed punctuation mark that was suggested to be used to indicate that a sentence should be understood at a second level (e.g. irony, sarcasm, etc.). It is illustrated by a small, elevated, backward-facing question mark. The irony mark has never been used widely. It appears occasionally in obscure artistic or literary publications.
Jacobus Hendricus ("Jack") van Lint (1 September 1932, Bandung – 28 September 2004) was a Dutch mathematician, professor at the Eindhoven University of Technology, of which he was rector magnificus from 1991 till 1996. He gained his Ph.D. from Utrecht University in 1957 under the supervision of F. van der Blij. He was professor of mathematics at Eindhoven University of Technology from 1959 to 1997.