Polecamy Artykuły Nowości
Świetlne spektakle nad polarnym…
Co to są zorze polarne, jak powstają, jaki związek mają z polem magnetycznym Ziemi? Co do tego wszystkiego mają pająki i parasole? Zastanówmy się nad tym właśnie teraz, kiedy zorze polarne rozświecają niebo nad Polską Stacją Polarną na Spitsbergenie,…
Smog – cichy zabójca
W wyniku wielkiego smogu londyńskiego, który utrzymywał się w tym mieście zaledwie przed 5 grudniowych dni 1952 roku, zmarło w sumie 12 tysięcy ludzi. W czym tkwi zabójczy sekret tego zjawiska?
Pierwsze kroki ornitologa, cz. 1
Podglądanie życia ptaków ma rzesze fanów. Nie jest bardzo trudne, ani kosztowne, ale (uwaga!) wciąga :)
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Niagara – widoczne dwie części: American i Canadian Falls. </span><span style="font-size:11.0pt;line-height:115%;font-family:"Calibri","sans-serif";
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EN-US;mso-bidi-language:AR-SA" lang="EN-US">Fot. Safron Blase, źródło: <a href="http://commons.wikimedia.org/wiki/Niagara_Falls#mediaviewer/File:Niagara_Falls_Storm.jpg">http://commons.wikimedia.org/wiki/Niagara_Falls#mediaviewer/File:Niagara_Falls_Storm.jpg</a></span><!--[if gte mso 9]><xml>
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Wodny spektakl
Czy jest wśród Was ktoś, kto nie słyszał o wodospadzie Niagara? Wodospad ten znajduje się na granicy Kanady i Stanów Zjednoczonych. Nie jest największy na świecie, nie niesie najwięcej wody. W czym tkwi jego magia?
Sahara to nie tylko piasek…
Słysząc słowo Sahara, najczęściej wyobrażamy sobie bezkresne powierzchnie pokryte żółtym piaskiem. Czy to prawdziwy obraz? Niezupełnie.