52 replies to this topic

[Mioba]

pošto sam juče na nekom kablu saznala da se u međustaničnom šumu na radioaparatu čuje i 0.5% zvuka velikog praska, više ne slušam ništa osim šuštanja

Sjaj komete Holms
3. novembar 2007. | 10:15 | Izvor: B92
Beograd -- Sa kalemegdanske opservatorije "Ruđer Bošković" ovih dana moguće videti kometu Holms čiji je period obilaženja oko Sunca oko sedam godina.
Ovu kometu inače izuzetno malog sjaja moguće je sada videti i golim okom, jer je došlo do naglog povećanja njenog sjaja. Posetioci opservatorije, ukoliko ih posluži vreme, moći će danas predveče i sami da je vide. Branko Simonović, saradnik Astronomskog drustva Ruđer Bošković kaže da se ne zna šta je tačno dovelo do povećanja sjaja.
"U svakom slučaju, kometa je eksplodirala odnosno došlo je do nekog katastrofičkog procesa na samoj kometi. Usled čega je ona izbacila veliki omotač, veliku količinu materije oko sebe. Zbog toga je vidimo kao sjajnu, ali zapravo nije došlo do povećanja same komete", kaže Simonović.

"The comet is growing fantastically," reports Thorsten Boeckel of Fuerstenfeldbruck, Bavaria, who has been monitoring the expansion. "By Sunday," he estimates, "it will be half as wide as a full Moon." Comet Holmes is easy to find. After sunset, look north for an expanding fuzzball in the constellation Perseus
klik za više

[autsajder]

pošto sam juče na nekom kablu saznala da se u međustaničnom šumu na radioaparatu čuje i 0.5% zvuka velikog praska, više ne slušam ništa osim šuštanja cool.gif

Kažu da su one haotično nipodaštavajuće crne i sive tačke na TV ekranu na frekvenciji između dva zauzeta kanala upravo video refleksija istog.



Kosmička sapunica u beskrajnoj pilot epizodi. (:

[Mioba]

Kosmička sapunica u beskrajnoj pilot epizodi. (:

ne vidim white noise


edit, a ne rade ti ni linkovi iz siga

Edited by Mioba, 17 November 2007 - 22:59.

[autsajder]

ne vidim white noise

Deaktivirala se animacija u međuvremenu. Nema veze, znas kako izgleda:



Točke i točkice, šuškanje i šumljenje.

edit, a ne rade ti ni linkovi iz siga

Znam, al ne diram da mi sig ne bi izgubio boju naslijeđenu iz pređašnjeg forumskog ciklusa.

(Kao i do sada, linkovi za moj Now Playing dobijaju se na /PM PM PM/)

Uništih ti topik.. ):

Bila je neka velika gužva prošle sedmice. Nuačnici umalo nisu objavili globalno upozorenje na predstojeći katastrofalni sudar planete sa nepoznatim kosmičkom objektom, ali se u posljednjem trenutku neka pametna glava sjetila da provjeri arhive, pa je utvrđeno da je to jedna Nasina letjelica koja se po planu vraća da obletom oko Zemlje uhvati zalet za putovanje ka Jupiteru ili tamo nekom klincu. Eto malo tako.

[Mioba]

Deaktivirala se animacija u međuvremenu. Nema veze, znas kako izgleda:

gle, odjednom se reaktivirala

od svih kosmičkih čuda, ostao nam samo white noise


helix nebula

Edited by Mioba, 21 November 2007 - 23:53.

[autsajder]

Mmmm-mm.m.. Mordor.

od svih kosmičkih čuda, ostao nam samo white noise

Ima jedno jako blizu, vidi se bez problema golim okom. Američki astronomi u novoj studiji tvrde da je naš Mjesec kosmički raritet, pošto samo 5 do 10 odsto planetarnih sustava, a možda i manje, imaju satelite koji su se formirali nakon velikih sudara nebeskih tijela.



Zemljin tihi pratilac nastao je od prašine i stijena izbačenih u orbitu nakon udara tijela veličine Marsa.

Lunarna trivija:

The famed U.S. Geological Survey astronomer had trained the Apollo mission astronauts about craters, but never made it into space. Dr. Shoemaker had wanted to be an astronaut but was rejected because of a medical problem. His ashes were placed on board the Lunar Prospector spacecraft before it was launched on January 6, 1998. NASA crashed the probe into a crater on the moon on July 31, 1999, in an attempt to learn if there is water on the Moon.

The footprints left by the Apollo astronauts will not erode since there is no wind or water on the Moon. The footprints should last at least 10 million years.

Easter is the first Sunday after the first Saturday after the first full moon after the equinox. (The equinox is quite often March 21, but can also occur on the March 20 or 22.)

[Hromi Daba]

asteroidna trivija:

Najveci krater na Zemlji nalazi se ispod Jukatana, ima precnik od 193km i dubok je 48km. Najveci kontinentalni krater u USA ima precnik od 32km i dubok je 5 km. Racuna se da je frekvencija ovakvih sudara 1 u milion godina.

Procenjuje se da je kometa/asteroid koji je udario u Sibiru pocetkom XX veka zapravo eksplodirao na visini od 6-10km snagom 30Mt koja je bacila u vazduh ljude udaljene 60km od mesta gde je udarni talas pogodio Zemlju. U XX veku je bilo 11 slicnih eksplozija snage 25t pa do 26Kt (jun 2002 - Mediteran, precnik tela 9m). Jedna je izbegnuta - meteor velicine kola/kuce (procene variraju) je 1974 godine usao pod vrlo niskim uglom u Zemljinu atmosferu iznad SAD (Grand Teton National Park), odbio se od nje i produzio dalje. Njegov energetski potencijal procenjen je na jednu do nekoliko Hirosima nuklearnih bombi.

Godine 1994 kometa Shoemaker-Levi 9 (grupa od 21 fragmenta razlicite velicine) udarila je u Jupiter. Udarac fragmenta Jezgro-G bio je snage 6 miliona megatona - 75 (ili 750, zavisi od izvora) puta vise od kompletnog poznatog nuklearnog arsenala na Zemlji. Procenjeni precnik fragmenta je 4km i predmet je debate. Jupiter je ponovo, kao nebrojeno puta do sada, odigrao ulogu Velikog Zida Zemlje, privlaceci svojom masivnom gravitacijom nebesko telo koje je mogo da nas ugrozi.

Na nebu ima oko sto miliona asteroida vecih od 10m koji ce se Zemlji naci na putu. Do sad je identifikovano i mapirano njih 26000. Akciju njihovog nalazenja i belezenja poceo je pomenuti Dr.Shoemaker sa saradnicima.

Najblizi zabelezeni prolaz asteroida kraj Zemlje desio se 1993 - razdaljina je bila 145 000 km. Racuna se da se svake godine dese 2-3 takva bliska prolaza koja ostanu neprimecena.

Svake godine na Zemlji se natalozi oko 30 000 t svemirske prasine.

Broj ljudi koji aktivno tragaju za asteroidima malo je veci od broja zaposlenih u prosecnom Mekdonalds restoranu.

Edited by Hromi Daba, 23 November 2007 - 21:57.

[Mioba]

što širite paniku

[Hromi Daba]

vuna kico?

Mislio sam da ce brojevi biti vise zabavni - ljudi uglavnom vole horore.

PS
Kad vec pominjes paniku, si gledala BBC seriju Space:

Youtube Video ->Original Video

Edited by Hromi Daba, 23 November 2007 - 22:43.

[Mioba]

PS
Kad vec pominjes paniku, si gledala BBC seriju Space:

misliš na stay alive epizodu?


kad ja dunem i vatru sunem, srušiću vam kuću (edit, sa okućnicom)

Edited by Mioba, 24 November 2007 - 10:06.

[Hromi Daba]

Sta kazes na ovo:

Meteorites linked to an explosion in biodiversity millions of years ago

Mozda jedan asteriodcic i ne bi bio tako losa stvar po ovu nasu Zemljicu? (<- matori cinik)

[Mioba]

možda uskoro budemo u prilici da proverimo teoriju na delu (<- mlada entuzijastkinja )

Asteroid on collision course with Mars
Mars is in danger of being struck by an asteroid at the end of next month, astronomers have calculated.
The newly discovered space rock known as 2007 WD5 has a one in 75 chance of colliding with the planet on January 30. While the probability of an impact is only slim, the odds have been cut from one in 350 when the object was first identified, and they are much shorter than is usual for new asteroids.
If 2007 WD5, which is about 100 metres in diameter, does strike Mars on January 30, it would cause an explosion equivalent to several megatonnes of TNT.
“These odds are extremely unusual,” said Steve Chesley, an astronomer with the Near Earth Object Program at NASA's Jet Propulsion Laboratory in Pasadena, California.
“We frequently work with really long odds when we track threatening asteroids. We know that it's going to fly by Mars and most likely going to miss, but there's a possibility of an impact.”
If the asteroid does hit, it would give astronomers a rare opportunity to study the effects of such a strike. The object is broadly similar in size to the one that hit Tunguska in Siberia in 1908, which felled an estimated 80 million trees over 810 square miles. Had the Tunguska rock hit a city, it would have wiped it out.
The impact, however, would be tiny in comparison to that of the asteroid that struck Chicxulub in Mexico 65 million years ago, which caused a worldwide cataclysm that is thought to have wiped out the dinosaurs. The new asteroid is 100 times smaller than the 10km diameter rock that caused that event.
The likely impact would be on the threshold of visibility from the largest of Earth's observatories, but its effects would readily be seen by probes orbiting the Red Planet such as the European Space Agency's Mars Express. It will not be visible with domestic telescopes or the naked eye.
The asteroid would probably hit a spot near the Martian equator, close to the point where Nasa's Opportunity rover has been exploring since 2004. Opportunity is safe, however, as it lies outside the projected impact zone.
The chances of an impact being seen with large terrestrial telescopes are greater than usual because Mars is currently very close to Earth. On Tuesday, the planet was just 55 million miles away, the closest it will be until 2016.
Mars is currently the brightest object in the night sky after the Moon.

[Downforce]

LOS ANGELES (AP) — Mars could be in for an asteroid hit. A newly discovered hunk of space rock has a 1 in 75 chance of slamming into the Red Planet on Jan. 30, scientists said Thursday.

"These odds are extremely unusual. We frequently work with really long odds when we track ... threatening asteroids," said Steve Chesley, an astronomer with the Near Earth Object Program at NASA's Jet Propulsion Laboratory.

The asteroid, known as 2007 WD5, was discovered in late November and is similar in size to an object that hit remote central Siberia in 1908, unleashing energy equivalent to a 15-megaton nuclear bomb and wiping out 60 million trees.

Scientists tracking the asteroid, currently halfway between Earth and Mars, initially put the odds of impact at 1 in 350 but increased the chances this week. Scientists expect the odds to diminish again early next month after getting new observations of the asteroid's orbit, Chesley said.

"We know that it's going to fly by Mars and most likely going to miss, but there's a possibility of an impact," he said.

"Unlike an Earth impact, we're not afraid, but we're excited," Chesley said.

[Hromi Daba]

Razocaran? A bas bi pasov'o jedan vatromet za novu godinu ...

[Downforce]

Pa to ti kazem. Uvek neki bombastican naslov, a od radnje nista.