In 1976 for just the second time, the University of New South Wales held a Summer Science School, and for the first time Mathematics was involved.
Issue 2
Everyone knows how to find examples of sets of three numbers which add up to the same number, such as $$ 1 + 6 + 8 = 2 + 3 + 10 $$
Issue 3
A recent letter to the magazine "New Scientist" drew attention to the following unexpected fact: if two bowlers perform equally well in one innings, but differently in the next, their overall performances may still be equal!