gracheeha (
gracheeha
) wrote
in
basis211
2018-08-28 08:06 pm (UTC)
no subject
Был такой инструмент - арифмометр, ручная швейная машинка для математических расчётов. А ещё - логарифмическая линейка в помощь и таблицы Брадиса...
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