Portal Wiedzy Strona g艂贸wna

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margin-bottom: 3px; float: left;"/><span style="color: #000000;">殴ród艂em kosmicznego promieniowania o energii dot膮d nie obserwowanej jest masywna czarna dziura w centrum naszej Galaktyki. Mo偶e ona przyspiesza膰 cz膮stki promieniowania do energii sto razy wi臋kszej ni偶 ta, któr膮 mo偶na osi膮gn膮膰 w akceleratorze cz膮stek LHC w CERN. To odkrycie dokonane po dziesi臋ciu latach pracy naukowców m.in. z Centrum Astronomicznego im. Miko艂aja Kopernika PAN</span></span></p> <p class="readmore"> <a class="btn" href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/148-uncategorised/935-czarna-dziura-przyspiesza" itemprop="url"> <span class="icon-chevron-right"></span> Czytaj wi臋cej... </a> </p> </div> </div> <div class="items-row cols-1 row-1 row-fluid"> <div class="item column-1 span12" itemprop="blogPost" itemscope itemtype="http://schema.org/BlogPosting"> <h2 class="item-title" itemprop="name"> <a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/148-uncategorised/934-odkrycie-polskich-paleontologow-otwiera-nowe-drzwi-w-nauce" itemprop="url"> Odkrycie polskich paleontolog贸w otwiera nowe drzwi w nauce </a> </h2> <p style="text-align: justify;"><span style="color: #000000;">Zespó艂 polskich naukowców odkry艂, zbada艂 i opisa艂 skamienia艂e naczynia krwiono艣ne z zachowanymi chemicznymi 艣ladami bia艂ek w ko艣ciach gadów triasowych, maj膮cych prawie 膰wier膰 miliarda lat. To otwarcie nowych drzwi w nauce - mówi膮 autorzy odkrycia.</span></p> <p class="readmore"> <a class="btn" href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/148-uncategorised/934-odkrycie-polskich-paleontologow-otwiera-nowe-drzwi-w-nauce" itemprop="url"> <span class="icon-chevron-right"></span> Czytaj wi臋cej... </a> </p> </div> </div> <div class="items-row cols-1 row-2 row-fluid"> <div class="item column-1 span12" itemprop="blogPost" itemscope itemtype="http://schema.org/BlogPosting"> <h2 class="item-title" itemprop="name"> <a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/148-uncategorised/933-superman-moze-zaczac-sie-bac-mamy-przepis-na-prawie-kryptonit" itemprop="url"> Superman mo偶e zacz膮膰 si臋 ba膰: mamy przepis na (prawie) kryptonit! </a> </h2> <p style="text-align: justify;"><span style="color: #000000;"><img src="/web/20160324004126im_/http://www.portalwiedzy.pan.pl/images/badania/2016/03/IChF160302b_fot01sm.jpg" alt="IChF160302b fot01sm" width="123" height="106" style="margin-right: 10px; margin-bottom: 10px; float: left;"/><br/>Chemicy-teoretycy z Instytutu Chemii Fizycznej PAN w Warszawie odkryli, jak zsyntetyzowa膰 pierwszy trwa艂y zwi膮zek kryptonu. Okazuje si臋, 偶e egzotyczna substancja mo偶e powstawa膰 w warunkach ekstremalnie du偶ych ci艣nie艅, a jej wytworzenie nie wykracza poza mo偶liwo艣ci wspó艂czesnych laboratoriów.</span></p> <p class="readmore"> <a class="btn" href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/148-uncategorised/933-superman-moze-zaczac-sie-bac-mamy-przepis-na-prawie-kryptonit" itemprop="url"> <span class="icon-chevron-right"></span> Czytaj wi臋cej... </a> </p> </div> </div> <div class="items-row cols-1 row-3 row-fluid"> <div class="item column-1 span12" itemprop="blogPost" itemscope itemtype="http://schema.org/BlogPosting"> <h2 class="item-title" itemprop="name"> <a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/148-uncategorised/930-krotka-historia-polowania-na-fale-grawitacyjne" itemprop="url"> Kr贸tka historia polowania na fale grawitacyjne </a> </h2> <p style="text-align: justify;"><span style="color: #000000;"><img src="https://web.archive.org/web/20160324004126im_/http://www.aktualnosci.pan.pl/images/2016/aktualnosci/falgraw.jpg" alt="fale grawitacyjne" height="150" style="margin-right: 10px; margin-bottom: 10px; float: left;"/>Istnienie fal grawitacyjnych wynika z ogólnej teorii wzgl臋dno艣ci sformu艂owanej przez Alberta Einsteina w 1915 r. Fale grawitacyjne s膮 zaburzeniami czasoprzestrzeni, powstaj膮cymi podczas gwa艂townych procesów astrofizycznych, takich jak np. zlewaj膮cy si臋 uk艂ad podwójny gwiazd neutronowych b膮d藕 czarnych dziur lub eksplozja masywnej gwiazdy (supernowa).</span></p> <p style="text-align: justify;"><span style="color: #000000;">Od czasu sformu艂owania ogólnej teorii wzgl臋dno艣ci przez Alberta Einsteina badacze poszukiwali dowodów potwierdzaj膮cych istnienie fal grawitacyjnych. Ich bezpo艣rednia detekcja jest niezwykle trudna, gdy偶 spodziewane amplitudy fal grawitacyjnych docieraj膮cych na Ziemi臋 z kosmosu s膮 nies艂ychanie ma艂e.</span></p> <p class="readmore"> <a class="btn" href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/148-uncategorised/930-krotka-historia-polowania-na-fale-grawitacyjne" itemprop="url"> <span class="icon-chevron-right"></span> Czytaj wi臋cej... </a> </p> </div> </div> <div class="items-row cols-1 row-4 row-fluid"> <div class="item column-1 span12" itemprop="blogPost" itemscope itemtype="http://schema.org/BlogPosting"> <h2 class="item-title" itemprop="name"> <a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/wiadomoci-biece/929-lignina-ropa-przyszlosci-byc-moze-dzieki-sloncu-i-fotokatalizatorom" itemprop="url"> Lignina rop膮 przysz艂o艣ci? By膰 mo偶e dzi臋ki S艂o艅cu i fotokatalizatorom! </a> </h2> <p style="text-align: justify;"><span style="color: #000000;"><img src="/web/20160324004126im_/http://www.portalwiedzy.pan.pl/images/badania/2016/02/16/IChF160204b_fot01s.jpg" alt="IChF160204b fot01s" width="182" height="150" style="margin: 0px 10px 10px 0px; float: left;"/>Rafinerie kojarz膮 si臋 z rop膮 naftow膮 i g臋st膮 pl膮tanin膮 technicznych instalacji. W przysz艂o艣ci to mo偶e si臋 jednak zmieni膰 – je艣li rop臋 zast膮pi lignina, dotychczas traktowana jako odpad przemys艂owy. W tym celu prowadzone s膮 badania nad nowymi fotokatalizatorami, opracowanymi przez Instytut Chemii Fizycznej PAN w Warszawie. Pozwalaj膮 one przekszta艂ca膰 zwi膮zki modeluj膮ce prawdziw膮 lignin臋 w u偶yteczne substancje chemiczne, na dodatek w reakcjach zachodz膮cych w warunkach naturalnie wyst臋puj膮cych w przyrodzie.</span></p> <p class="readmore"> <a class="btn" href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/wiadomoci-biece/929-lignina-ropa-przyszlosci-byc-moze-dzieki-sloncu-i-fotokatalizatorom" itemprop="url"> <span class="icon-chevron-right"></span> Czytaj wi臋cej... </a> </p> </div> </div> <div class="pagination"> <p class="counter pull-right"> Strona 1 z 15 </p> <ul><li class="pagination-start"><span class="pagenav">start</span></li><li class="pagination-prev"><span class="pagenav">poprz.</span></li><li><span class="pagenav">1</span></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=5" class="pagenav">2</a></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=10" class="pagenav">3</a></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=15" class="pagenav">4</a></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=20" class="pagenav">5</a></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=25" class="pagenav">6</a></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=30" class="pagenav">7</a></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=35" class="pagenav">8</a></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=40" class="pagenav">9</a></li><li><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=45" class="pagenav">10</a></li><li class="pagination-next"><a title="nast." href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=5" class="hasTooltip pagenav">nast.</a></li><li class="pagination-end"><a title="koniec" href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php?start=70" class="hasTooltip pagenav">koniec</a></li></ul> </div> </div> </div> </div> <h2 class="unseen"> Additional information </h2>  <div id="right"> <a id="additional"></a> <div class="moduletable_menu"> <h3><span class="backh"><span class="backh2"><span class="backh3">Main Menu</span></span></span></h3> <ul class="nav menu"> <li class="item-582 current active"><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php">Strona g艂贸wna</a></li><li class="item-566"><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/wiadomoci-biece">Wiadomo艣ci bie偶膮ce</a></li><li class="item-80 parent"><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/badania-naukowe-w-pan">Badania naukowe w PAN</a></li><li class="item-70 parent"><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/publikacje-pan">Publikacje PAN</a></li><li class="item-66"><a href="https://web.archive.org/web/20160324004126/http://www.wszechnica.pan.pl/">Wszechnica</a></li><li class="item-654"><a href="https://web.archive.org/web/20160324004126/http://www.naukaonline.pl/" target="_blank">Portal "Nauka online"</a></li><li class="item-68 parent"><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/internetowy-uniwersytet-medyczny">Internetowy Uniwersytet Medyczny</a></li><li class="item-56"><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/kalendarium-imprez/month.calendar/2016/03/24/-">Kalendarium imprez</a></li><li class="item-114"><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/archiwum">Archiwum</a></li><li class="item-19"><a href="/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/mapa-strony2">Mapa strony</a></li></ul> </div> <div class="moduletable"> <h3><span class="backh"><span class="backh2"><span class="backh3">Plakat</span></span></span></h3> <div class="custom"> <p style="text-align: center;"><span style="color: #e9967a;"><strong><span style="color: #ffcc00;"><span style="color: #deb887;"><span style="color: #deb887;">PRZEGL膭D WYDARZE艃</span></span></span></strong></span><br/><a href="https://web.archive.org/web/20160324004126/http://www.portalwiedzy.pan.pl/index.php/kalendarium-imprez" target="_self"><img src="/web/20160324004126im_/http://www.portalwiedzy.pan.pl/images/stories/zdjecia/prawy_modul/plakaty/ostatni1.jpg" alt="ostatni1" width="130" height="180" style="margin-right: 2px; 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