http://gura-nata.livejournal.com/ ([identity profile] gura-nata.livejournal.com) wrote in [personal profile] npubop 2010-10-07 04:24 pm (UTC)

я решала проблему температуры с помощью силы трения и выделяющейся при этом энергии
а про грифель узнала уже во взрослом возрасте, в школе у нас никто не жрал
(20 comments)

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