Polecamy Artykuły Nowości
Pierwszy barometr
Kiedy około roku 1641 Włoch Gasparo Berti przeprowadzał swój eksperyment, wcale nie miał zamiaru zostać prekursorem barometru. Chciał się jedynie dowiedzieć, dlaczego nie można odpompować wody ze studni głębszych niż 10 metrów.
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</xml><![endif]--><br><br>Kwiaty hortensji przybierają barwy w zależności od pH (kwasowości) podłoża, na którym rosną.Marc Ryckaert (MJJR) http://commons.wikimedia.org/wiki/File:Hydrangea_macrophylla_02.jpg<span style="font-size:10.0pt;line-height:115%;font-family:" calibri","sans-serif";="" mso-ascii-theme-font:minor-latin;mso-fareast-font-family:calibri;mso-fareast-theme-font:="" minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"times="" new="" roman";="" mso-bidi-theme-font:minor-bidi;mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="" lang="EN-US"><a href="http://commons.wikimedia.org/wiki/File:Hydrangea_macrophylla_02.jpg"><span style="color:windowtext;mso-ansi-language:PL;text-decoration:none;
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