Kaufmann also made a calculation mistake in deriving the deflection curves.

When correcting after observing the seating of the passengers, the pilot in command had made a calculation mistake in which he thought the passengers did not need to move around.

"We are finding lots of calculation mistakes in lump-sum payments," said Judy Welles, senior spokeswoman for the Pension Benefit Guaranty Corporation, which insures defined-benefit pensions and takes over those that fail.

Scientists of the Institute of Geodesy and Geoinformationtechnique of the Technical University of Berlin were testing the antique maps of Ptolemy and recognized a pattern of calculation mistakes that occurred when one tried to convert the old coordinates from Ptolemy into modern cartographical maps.