Plenty of our childhoods had at least one math teacher who made the (ultimately erroneous) claim that we needed to learn to do math because we wouldn’t always have a calculator in our ...
اگر خواستین اینارو بخونین و دارین از طرف Github میخونینشون پیشنهادم اینه که به این آدرس برین و گیت بوکشو بخونین چون راست چینه مرتبه و صفحهبندی ...
John James Audubon (1785-1851) was not the first person to attempt to paint and describe all the birds of America (Alexander Wilson has that distinction), but for half a century he was the young ...
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