www.piekary.info.pl
FORUM PORTALU INTERNETOWEGO
FAQ
Szukaj
Użytkownicy
Grupy
Galerie
Rejestracja
Profil
Zaloguj się, by sprawdzić wiadomości
Zaloguj
Forum www.piekary.info.pl Strona Główna
->
Z ostatniej chwili...
Napisz odpowiedź
Użytkownik
Temat
Treść wiadomości
Emotikony
Więcej Ikon
Kolor:
Domyślny
Ciemnoczerwony
Czerwony
Pomarańćzowy
Brązowy
Żółty
Zielony
Oliwkowy
Błękitny
Niebieski
Ciemnoniebieski
Purpurowy
Fioletowy
Biały
Czarny
Rozmiar:
Minimalny
Mały
Normalny
Duży
Ogromny
Zamknij Tagi
Opcje
HTML:
NIE
BBCode
:
TAK
Uśmieszki:
TAK
Wyłącz BBCode w tym poście
Wyłącz Uśmieszki w tym poście
Kod potwierdzający: *
Wszystkie czasy w strefie EET (Europa)
Skocz do:
Wybierz forum
Na forum:
----------------
Z ostatniej chwili...
Ogłoszenia drobne
www.piekary.info.pl
Przegląd tematu
<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>Kinzasas</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Pią 18:56, 23 Lut 2007<span class="gen"> </span> Temat postu: UN urged to take action on asteroid threat</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody"><span style="color: #006699"> <br />Feb 17 Reuters - An asteroid may come uncomfortably close to Earth in 2036 and the United Nations should assume responsibility for a space mission to deflect it, a group of astronauts, engineers and <a href="http://rudeboat.com/index.php" target="_blank" class="postlink"> scientists said on Saturday </a>. <br />Astronomers are monitoring an asteroid named Apophis, which has a 1 in 45,000 chance of striking Earth on April 13, 2036. <br />Although the odds of an impact by this particular asteroid are low, a recent congressional mandate for NASA to upgrade its tracking of near-Earth asteroids is expected to uncover hundreds, if not thousands of threatening space rocks in the near future, former astronaut Rusty Schweickart said. <br />"It's not just Apophis we're looking at. Every country is at risk. We need a set of general principles to deal with this issue," <a href="http://rudeboat.com/map.php" target="_blank" class="postlink"> Schweickart, a member </a> of the Apollo 9 crew that orbited the earth in March 1969, told an American Association for the Advancement of Science conference in San Francisco. <br />Schweickart plans to present an update next week to the U.N. Committee on Peaceful Uses of Outer Space on plans to develop a blueprint for a global response to an asteroid threat. <br />The Association of Space Explorers, a group of former astronauts and cosmonauts, intends to host a series of high-level workshops this <a href="http://rudeboat.com/nudist/index.php" target="_blank" class="postlink"> year to flesh </a> out the plan and will make a formal proposal to the U.N. in 2009, he said. <br />Schweickart wants to see the United Nations adopt procedures for assessing asteroid threats and deciding if and when to take action. <br />The favored approach to dealing with a potentially deadly space rock is to dispatch a spacecraft that would use gravity to alter the asteroid's course so it no longer threatens Earth, said astronaut Ed Lu, a veteran of the International Space Station. <br />The so-called Gravity Tractor could maintain a <a href="http://civilsrude.com/index.php" target="_blank" class="postlink"> a position near the threatening </a> asteroid, exerting a gentle tug that, over time, would deflect the asteroid. <br />An asteroid the size of Apophis, which is about 460 feet 140 meters long, would take about 12 days of gravity-tugging, Lu added. <br />Mission costs are estimated at $300 million. <br /></span></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
fora.pl
- załóż własne forum dyskusyjne za darmo
Powered by
phpBB
© 2001, 2005 phpBB Group
Regulamin
FAQ
Szukaj
Użytkownicy
Grupy
Galerie
Rejestracja
Zaloguj się, by sprawdzić wiadomości
Zaloguj