Vagelford

Einai para poly dyskolo na soy eksighso apo to forum akribos ti symbenei. To kleidh einai sto oti ta troxiaka epipeda ths ghs kai ths selhnhs ka8os kai to epipedo toy ishmerinoy ths ghs paramenoyn sta8era, dhladh diathroyn ton prosanatolismo toys kata thn peristrofh ths ghs gyro apo ton hlio. An skefteis ayto kai paralhla skefteis oti thn nyxta blepeis to meros ths troxias toy feggarioy poy den einai anamesa sth gh kai ton hlio ka8os kai to oti o orizontas einai to efaptomeno epipedo ston topo parathrhshs 8a deis oti sto geografiko mas platos etsi einai. ua prospauiso na scanaro mia fotografia alla xoris sxolia kai pali nomizo oti den 8a einai profanes.

To Aygoystiatiko Feggari diagrafei troxia pio xamila ston orizonta. Otan to Feggari einai xamila ston orizonta fainete pio megalo apo otan einai pio psila. Ayto einai ena genika gnosto fainomeno poy den exei na kanei me kapoia fysikh diadikasia. Exei na kanei me to pos ermhneyei tis sxetikes diastaseis 2 anthkhmenon poy probalonte to ena dipla sto allo o an8ropinos egkefalos. Etsi otan to feggari probalete konta ston orizonta (idietera ama einai panselhnos) miazei na einai pio megalo.

PRESS RELEASE Canadian Institute of Mining, Metallurgy and Petroleum www.cim.org April 26, 2001 Mining and Space: A new era dawns Canadian Institute of Mining, Metallurgy and Petroleum (CIM) - Invitation to the media - Mining and Space: A new era dawns QUEBEC CITY, April 26 - A new era in technology transfer between mining and space industries is ensuring Canada's role as world leaders in scientific innovation. In an unprecedented move, the Canadian Institute of Mining, Metallurgy and Petroleum (CIM) has joined forces in a partnership with the Canadian Space Agency (CSA), to hold MineSpace 2001, a conference and trade show being held April 29th to May 2nd, in Quebec City. The two organizations will work to foster the growth of technology transfer between their two industries and to strengthen their respective competitive advantage in the global market. The media is invited to attended the Plenary and learn about the latest technological developments on April 30th, from 9:00 a.m. to 12:00 noon. CIM's MineSpace 2001 Plenary Session will focus on the growing relationship between the minerals and space industries. Guest speakers will include Peter Jones, Executive Vice-President, INCO Ltd; Michael Avedesian, President, Noranda Magnesium Inc.; Colin Cooper, Manager, Material Engineering, Pratt & Whitney Canada and Michel Giroux, Director General of External Relations, Canadian Space Agency; Bjarni Tryggvason, Canadian astronaut, Canadian Space Agency. A press conference will be held immediately following the plenary, at 12:00 noon. The above speakers will be present. ABOUT CIM CIM is the leading technical society of professionals in the Canadian minerals, metals, materials and energy industries, representing 12,000 engineers and operators across the country. Mineral extraction and metallurgical production represented 3.7 % of Canada's gross domestic product (GDP) last year. ABOUT THE CSA Established in 1989 and situated in Saint-Hubert, Quebec, the Canadian Space Agency coordinates all aspects of the Canadian Space Program. Through its Space Knowledge, Applications and Industry Development business line, the CSA delivers services involving: Earth and the Environment; Space Science; Human Presence in Space; Satellite Communications; Generic Space Technologies; Space Qualification Services and Awareness. The Canadian Space Agency is at the forefront of the development and application of space knowledge for the benefit of Canadians and humanity. -30- For further information: Toby King, Director, Communications and Membership, Canadian Institute of Mining, Metallurgy and Petroleum (CIM), (514) 939-2710 Ext. 314, Fax: (514) 939-2714, tking@cim.org

Parepiptontos deite kai ayto poy exei endiaferon. PHYSICS NEWS UPDATE The American Institute of Physics Bulletin of Physics News Number 535 April 20, 2001 by Phillip F. Schewe, Ben Stein, and James Riordon EKPYROSIS: A NEW THEORY OF THE BIG BANG. Most physicists when asked what came before the big bang throw up their hands. But Paul Steinhardt of Princeton and several colleagues have postulated an idea that explains everything. Unveiled at a talk given a few weeks ago at the Space Telescope Science Institute, the new theory is called the ekpyrotic model, from a Greek word meaning fiery. The main thesis? That our present universe, filled as it is with lumpy galaxies, began as a cold featureless place which suffered a collision with another universe. This defining moment seeded our universe with the matter irregularities which would later grow into those galaxies we see in the sky. The new theory purportedly addresses several prominent cosmological puzzles without resorting to "inflation," that hypothetical era in which the early universe expanded for a short spell at a superluminal pace. These puzzles include (1) flatness (our universe seems to have no overall curvature); (2) homogeneity (far-flung parts of the sky seem unreasonably to have roughly the same temperature); (3) lumpiness (future galaxies have to arise somehow); and (4) monopoles (expected topological defects are not seen). A preprint summarizing the model (http://xxx.lanl.gov/format/hep-th/0103239) asserts that the new idea can be put to experimental test since it makes predictions concerning gravitational waves and polarizations in the cosmic microwave background.

Sta parapano poy anafereis kaneis mia ypo8esh poy diamorfonei ton sylogismo soy. Ypo8eteis oti to sympan sto opoio zoyme einai to monadiko. H kosmologia den kanei kamia tetoia ypo8esh. Ypo8etontas oti to sympan mas einai to monadiko poy yparxei einai logiko na anarotiete kapoios giati na exei ginei h sygkekrimenh epilogh fysikon nomon. Xoris thn ypo8esh toy monadikoy sympantos den exei nohma h anazithsh ths aitias gia thn morfh ton fysikon nomon giati poly apla 8eoreis oti yparxoyn toylaxiston tosa sympanta osa epitreponte apo tis diafores dynates morfes ton fysikon nomon. Aplos h yparksh mas einai syndedemenh me thn sygkekrimenh morfh ton fysikon nomon poy 8a mporoyse na exei ena sympan kai pi8anon na mhn htan dynath h yparksh mas se ayth thn morfh an oi fysikoi nomoi htan diaforetikoi. Telos den prepei na ksexnas oti kamia 8eorish ton pragmaton den einai pantodynamh giati gia na diatyposeis mia 8eoria xriazese tis protes kai basikes ennies me tis opoies 8a xtiseis thn 8eoria soy kai mesa sta plesia ths 8eorias ayths den mporeis na antimetopiseis tis protes aytes ennies. Gia thn erotish toy Kosta exo na po oti den prepei na ksexna oti to sympan apotelite apo ton xoroxrono kai thn ylh poy briskete mesa sto xoroxrono. Kai ara afoy h ylh allhlepidra me ton xoroxrono kai ton diamorfonei ka8os kai o xoroxronos allhlepidra me thn ylh kai diamorfonei thn katanomh ths, einai stoixeia syndedemena kai den mporeis na ta ksexoriseis. Ara h kampylothta toy sympantos einai stoixeio poy eksartate apo thn ylh poy yparxei sto sympan kai ara einai eggenhs idiothta toy sympantos.

Gia to 8ema ths strebloshs toy xoroxronoy me stoxo thn proo8hsh diasthmoplioy (Warp Drives) yparxoyn merika paper. Parakato exo merika link gia ayta ta paper ta opoia einai ligo texnika kai exo kai merika link gia pio aplopoihmenes paroysiaseis ayton ton 8ematon. The warp drive: hyper-fast travel within general relativity The Alcubierre Warp Drive The unphysical nature of "Warp Drive" The Krasnikov Tube: A Subway to the Stars Hyperfast Interstellar Travel in General Relativity A Superluminal Subway: The Krasnikov Tube Elpizo na ta brite endiaferonta.

H Astronomia den einai apla mia peiramatikh episthmh. Opos kai se ka8e tomea ths fysikhs, etsi kai sthn astronomia yparxei ena poly megalo kai shmantiko 8eorhtiko ypoba8ro apo piso. H Astronomia den periorizete se onomatologia astron. Gia thn anafora soy ston nomo toy Hubble prepei na soy po oti aytes oi parathrhseis kai ta symperasmata poy odhghsan ston nomo toy Hubble allakse ton tropo poy blepoyme to sympan shmera kai einai sigoyra poly pio symantika apo thn aplh onomatologia merikon astron.

Pos kataferneis na briskete to film sto estiako epipedo toy thleskopoioy sthn estiakh fotografish?

Emena 8a me endiefere ama mporoyses na doseis epipleon plhrofories. Me endiaferei idietera h fotografia me megalh megen8ish.