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Supernova Flashback

jtintle — Tue, 07 Oct 2008 05:01:25 +0000

Credit:

NASA/JPL-Caltech/E. Dwek and R. Arendt

Explanation:

Hot spots near the shattered remains of an exploded star are echoing the blast's first moments, say scientists using data from NASA's Spitzer Space Telescope.

Eli Dwek of NASA's Goddard Space Flight Center in Greenbelt, Md. and Richard Arendt of the University of Maryland, Baltimore County, say these echoes are powered by radiation from Cassiopeia A supernova shock wave that blew the star apart some 11,000 years ago.

"We're seeing the supernova's first flash," Dwek said.

Previously, other Spitzer researchers discovered hot spots near the Cassiopeia A supernova remnant and recognized the spots' importance as light echoes of the original blast. Dwek and Arendt used Spitzer data to probe this hot dust and pin down the cause of the echoes more precisely.

Six knots of silicate dust near the remnant show temperatures between -173 and -123 degrees Celsius (-280 and -190 degrees Fahrenheit). Although this might seem frigid by earthly standards, such temperatures are downright hot compared to typical interstellar dust.

Writing in the October 1 issue of The Astrophysical Journal, the scientists show that the only event that could make the grains this hot is the powerful and short-lived pulse of ultraviolet radiation and X-rays that heralded the death of the star. The flash was a hundred billion times brighter than the sun, but lasted only a day or so.

"They've identified the precise event during the demolition of the star that produces the echo we see," said Michael Werner, the project scientist for Spitzer at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

Light from the explosion reached Earth in the 17th century, but no one noticed. The Spitzer find gives astronomers a second chance to study the supernova as it unfolds.

Although the explosion originally escaped detection, its aftermath -- a hot, expanding gas cloud known as Cassiopeia A (Cas A, for short) -- is one of the best-studied supernova remnants. The blast zone lies 11,000 light-years away in the constellation Cassiopeia.

When a massive star runs out of nuclear fuel, its core collapses into a superdense, city-sized object called a neutron star. As the neutron star forms, it stiffens and rebounds. This triggers a mammoth shock wave that blows the star's outer layers to smithereens. The exiting shock creates a high-energy flash that precedes the supernova's rise in visible light.

Evidence for a flash associated with this "shock breakout" existed only in computer simulations until January 9, 2008. That's when NASA's Swift satellite detected a 5-minute-long X-ray pulse from galaxy NGC 2770. A few days later, a new supernova -- designated SN 2008D -- appeared in the galaxy.

The infrared echoes from Cas A arise from dust clouds about 160 light-years farther away than the remnant. The supernova's initial radiation pulse expands through space at the speed of light, then encounters the clouds and heats their dust grains. The dust, in turn, re-radiates the energy at infrared wavelengths.

The breakout radiation took 160 years to reach the clouds and, once heated, the dust's infrared energy had to make up the same distance. This extra travel time results in a 320-year offset between the supernova's initial outward-moving flash and arrival of the dust's infrared echo at Earth. The researchers plan to use the echoes to paint an intimate portrait of the explosion, the star and the immediate environment.

When light from the Cas A supernova first reached Earth in the late 1600s, no one reported seeing a new star. On August 16, 1680, the English astronomer John Flamsteed might have seen the supernova without recognizing it. He recorded a faint naked-eye star near the position of Cas A, but none exists there now.

New Solar System Birth Discovery

soccertips4u — Sat, 04 Oct 2008 04:06:49 +0000

First there was the theoretical Big Bang that got the universe going. Several billion years passed. Then a Little Bang birthed our solar system.

At least scientists have long thought that's how it went, and now they have a computer model to back up the idea that our sun is the product of an explosive event. The new modeling finds that a supernova, or exploding star, could indeed have triggered birth of our sun in a dense cloud of gas and dust, the researchers say.

Stars are born when a cloud of material collapses. Exactly what triggers the collapse is not entirely known. One idea is that most stars, including perhaps our sun, were created in dense starbirth regions when another very massive star explodes, putting intense pressure on surrounding clouds.

"We've had chemical evidence from meteorites that points to a supernova triggering our solar system's formation since the 1970s," said theorist Alan Boss of the Carnegie Institution. "But the devil has been in the details. Until this study, scientists have not been able to work out a self-consistent scenario, where collapse is triggered at the same time that newly created isotopes from the supernova are injected into the collapsing cloud."

Short-lived radioactive isotopes -- versions of elements with the same number of protons, but a different number of neutrons -- found in very old meteorites decay on time scales of millions of years and turn into different (so-called daughter) elements. Finding the daughter elements in primitive meteorites implies that the parent short-lived radioisotopes must have been created only a million or so years before the meteorites themselves were formed.

"One of these parent isotopes, iron-60, can be made in significant amounts only in the potent nuclear furnaces of massive or evolved stars," Boss today. "Iron-60 decays into nickel-60, and nickel-60 has been found in primitive meteorites. So we've known where and when the parent isotope was made, but not how it got here."

Previous models by Boss and former DTM Fellow Prudence Foster showed that the isotopes could be deposited into a pre-solar cloud if a shock wave from a supernova explosion slowed to 6 to 25 miles per second and the wave and cloud had a constant temperature of -440 degrees Fahrenheit (10 K).

"Those models didn't work if the material was heated by compression and cooled by radiation, and this conundrum has left serious doubts in the community about whether a supernova shock started these events over four billion years ago or not," said Harri Vanhala, who found the negative result in his Ph.D. thesis work at the Harvard-Smithsonian Center for Astrophysics in 1997.

In several runs on the computer, the shock front was made to strike a pre-solar cloud of material with the mass of our sun, consisting of dust, water, carbon monoxide, and molecular hydrogen, reaching temperatures as high as 1,340°F (1000 K). In the absence of cooling, the cloud could not collapse.

However, with a newly crafted theoretically plausible cooling law, the researchers found that after 100,000 years the pre-solar cloud was 1,000 times denser than before, and that heat from the shock front was rapidly lost, resulting in only a thin layer with temperatures close to 1,340 degrees F (1000 K). After 160,000 years, the cloud center had collapsed to become a million times denser, forming the protosun. The researchers found that isotopes from the shock front were mixed into the protosun in a manner consistent with their origin in a supernova.

Other studies have suggested that our sun may have been born in a very crowded environment, near massive stars, but has since drifted to its relatively lonely position in space.

"This is the first time a detailed model for a supernova triggering the formation of our solar system has been shown to work," said Boss. "We started with a Little Bang 9 billion years after the Big Bang."

The results are detailed in the Oct. 20 issue of the Astrophysical Journal. Boss has previously shown that all this violent activity might have contributed to the makeup of our planetary system, too.

Nokia 7610 Supernova, lebih baik atau lebih buruk?

mysticaltech — Thu, 02 Oct 2008 05:49:57 +0000

Nokia 7610 supernova merupakan generasi kedua “supernova” setelah 7310 Supernova. Supernova berarti ketangguhan sisi Fashion dan sisi fitur HP ini. Konsep desain yang glamour dan ketangguhan fiturnya dapat kita lihat dari bentuknya, walaupun covernya bisa diganti-ganti (Xpress-on™ cover), tapi desainnya tergolong mantap dan menonjolkan fitur-fitur yang ada.

Sebenarnya, konsep desain 7610 ini tak jauh beda dibandingkan 7310 Supernova. LCD 7610 Supernova ini pun memiliki kepekatan 16,7 juta warna dengan teknologi TFT. Kamera 7610 ini ditanjapkan dengan kualitas 3,2 megapixels termasuk autofocus serta dua LED flash yang menghasilkan kualitas yang prima. Sayang, objek yang kita ambil seringkali banyak terdapat noise. Kekurangan yang lainnya adalah waktu kita menyimpan foto terlalu lambat.

Selain stylish, 7610 Supernova juga dirancang untuk fitur-fitur fun seperti player MP3,AAC dan AAC+. Meski hanya sedikit, tapi teknologi yang menyertainya tergolong cukup canggih seperti ponsel-ponsel musik pada umumnya. Fitur-fitur lainnya adalah upload foto ke Flickr. Selain didukung port kabel data microUSB, nokia 7610 Supernova juga dilengkapi koneksi Bluetooth 2.0 dengan A2DP.

Interface : Serie 40 3^rd edition, tombol Navi™ 5 arah, tombol kamera dan musik terpisah, Xpress-On™ Cover

Prosesor : -

Layar Internal(utama) : TFT 16,7 Juta warna

Layar External(luar) : -

Kamera Utama : 3,2 mp dengan 2 flash

Kamera Sekunder : -

Video Recorder : ya VGA@15fps

Messanging : SMS,MMS,Nokia Audio Xpress,IM

Memori Internal : 64 mb

Memori External : microSD up to 2GB

Konektivitas : Bluetooth 2.0 (A2DP), kabel data

Browser : WAP 2.0/xHTML

Transfer Data : EDGE class 32, GPRS class 32, HSCSD, OTA

Support File Audio : MP3,AAC dan AAC+

Support File Video: MPEG 4

Speakerphone : Ya

Voice Recorder : ya

Java : ya, MIDP 2.1

Radio FM : ya, dengan RDS

Baterai Standar: lithium Ion 860 mAh (BL-45)

Network : QuadBand GSM

Dimensi : 9,8x4,8x1,5 cm

Berat : 99 gram

Fitur Lain : Music Player, Video player, Games

Aplikasi : Converter, Download, Flickr, Opera Mini, Search, Sensor, Size converter, WidSets, World Clock Yahoo! Go, Alarm clock, Calendar, Maps. Notes, Calculator, Stopwatch, Dictionary, Equalizer, Stereo Widening

Scientists: Earth May Exist in Giant Cosmic Bubble

Polycarp — Wed, 01 Oct 2008 17:40:29 +0000

Today seems be a slow news day, and I am rather busy preparing other posts for later in the week; however, every once in a while I stumble across an interesting article, like this one. Would the discovery of such a 'bubble' actually cause any problems for religion and people of Faith?

Scientists: Earth May Exist in Giant Cosmic Bubble

If the notion of dark energy sounds improbable, get ready for an even more outlandish suggestion.

Earth may be trapped in an abnormal bubble of space-time that is particularly devoid of matter.

Scientists say this condition could account for the apparent acceleration of the universe's expansion, for which dark energy currently is the leading explanation.

Dark energy is the name given to the hypothetical force that could be drawing all the stuff in the universe outward at an ever-increasing rate.

Current thinking is that 74 percent of the universe could be made up of this exotic dark energy, with another 21 percent being dark matter, and normal matter comprising the remaining 5 percent.

Until now, there has been no good way to choose between dark energy or the void explanation, but a new study outlines a potential test of the bubble scenario.

If we were in an unusually sparse area of the universe, then things could look farther away than they really are and there would be no need to rely on dark energy as an explanation for certain astronomical observations.

"If we lived in a very large under-density, then the space-time itself wouldn't be accelerating," said researcher Timothy Clifton of Oxford University in England. "It would just be that the observations, if interpreted in the usual way, would look like they were."

Scientists first detected the acceleration by noting that distant supernovae seemed to be moving away from us faster than they should be.

One type of supernova (called Type Ia) is a useful distance indicator, because the explosions always have the same intrinsic brightness.

Since light gets dimmer the farther it travels, that means that when the supernovae appear faint to us, they are far away, and when they appear bright, they are closer in.

But if we happened to be in a portion of the universe with less matter in it than normal, then the space-time around us would be different than it is outside, because matter warps space-time.

Light travelling from supernovae outside our bubble would appear dimmer, because the light would diverge more than we would expect once it got inside our void.

One problem with the void idea, though, is that it negates a principle that has reigned in astronomy for more than 450 years: namely, that our place in the universe isn't special.

When Nicholas Copernicus argued that it made much more sense for the Earth to be revolving around the sun than vice versa, it revolutionized science.

Since then, most theories have to pass the Copernican test. If they require our planet to be unique, or our position to be exalted, the ideas often seem unlikely.

"This idea that we live in a void would really be a statement that we live in a special place," Clifton told SPACE.com. "The regular cosmological model is based on the idea that where we live is a typical place in the universe. This would be a contradiction to the Copernican principle."

Clifton, along with Oxford researchers Pedro G. Ferreira and Kate Land, say that in coming years we may be able to distinguish between dark energy and the void.

They point to the upcoming Joint Dark Energy Mission, planned by NASA and the U.S. Department of Energy to launch in 2014 or 2015.

The satellite aims to measure the expansion of the universe precisely by observing about 2,300 supernovae.

The scientists suggest that by looking at a large number of supernovae in a certain region of the universe, they should be able to tell whether the objects are really accelerating away, or if their light is merely being distorted in a void.

The new study will be detailed in an upcoming issue of the journal Physical Review Letters.

Copyright © 2008 Imaginova Corp. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.

Supernova - Goodbye (M.Net Countdown 2007-11-01)

anniah — Tue, 30 Sep 2008 17:56:54 +0000

Download
anniah@youcangetit.wordpress.com or ANiDee@z-degrees

【翻譯】SCREAM

Nameless — Sat, 20 Sep 2008 10:49:07 +0000

Written by HAKUEI
Presented by PENICILLIN

遠離的光芒與你的眼淚重疊　我閉上眼睛
黃昏的記憶　消失到好遠、好遠、好遠的深處…消失了…

誕生在這世上　愛人　被愛　侵犯　被侵犯
忘了呼吸　前往幽深、黑暗、深邃的空間

「你愛過的我　已經不在了」
「對於愛過的你　我也不再需要了」

在永恆的黑暗中哭喊
靠著悲傷的力量甦醒
無止盡走下去吧　死去的身體
和風一起

即使切斷撕裂這乾渴的喉嚨
不成聲的悲鳴　也只能像沙粒般滴落

徘徊的殭屍　拒絕安魂曲的召喚
依附著這道牆　彷彿堅信著什麼

哭喊著永恆的愛
呼叫著悲傷的曲調
選擇了真實的心　死去的身體
和風一起

這樣下去究竟會到達何處？
這樣下去究竟會到達何處？
這樣下去究竟會到達何處？
這道牆會延伸到哪裡？

在永恆的黑暗中哭喊
靠著悲傷的力量甦醒
無止盡走下去吧　死去的身體
和風一起
哭喊著永恆的愛
呼叫著悲傷的曲調
選擇了真實的心　死去的身體
和風一起

永遠…　我會永遠…永遠…
永遠…　我會永遠…永遠…

遠離的光芒與你的眼淚重疊　我閉上眼睛
黃昏的記憶　消失到好遠、好遠、好遠的深處…啊啊…

【翻譯】RAINBOW

Nameless — Sat, 20 Sep 2008 10:27:35 +0000

Written by HAKUEI
Presented by PENICILLIN

交錯的幻想　光速進行的城市
一眨眼便會覆寫過去
誰能回答　真正的天藍色是什麼樣子
我將彈奏出真正的心情

東京的喧囂　步道旁盛開的花
莫名流下淚來
將內心升起的那股傷感的溫熱
也彈奏出來

在看不見明天　甚至也看不見自己的
地球上

遇見你　愛你　與你一同演奏
沐浴為你微笑的風中
你的胸口　你的鼓動　你的體溫
輕輕柔柔融化我的心
如今已是雨後的晴空
就像夢一般　就像虹一般不見蹤影

即使往日時光被「現在」埋藏
依稀可聽見它的殘音
在太陽下擦乾眼淚
蹬著七色的長靴作響

跑出去吧　到城市外頭
彷彿想談戀愛的那時
澎湃的心跳　傷感的別離
都是我存在的證明

遇見你　愛你　與你一同演奏
沐浴為你微笑的風中
你的眼　你的手　你的唇
跟著旋律與我的心相疊
如今已是雨後的晴空
就像夢一般　就像虹一般不見蹤影

夏日的天空上拖著一道飛機雲
發出光芒吧　我的碎片

即使往日時光被「現在」埋藏
依稀可聽見它的殘音

遇見你　愛你　與你一同閃耀
沐浴為你微笑的風中
你的胸口　你的鼓動　風的體溫
輕輕柔柔融化我的心
如今已是雨後的晴空
就像夢一般　就像虹一般不見蹤影
戀愛的心情　越過彩虹飛向明天吧

ggjc - gravitation group journal club

justing — Fri, 19 Sep 2008 20:15:25 +0000

We had our inaugeral gravitation group journal club meeting this afternoon. The article wasn't too gravity centric, but after reading it we all had wondered approximately the same thing. The article is "A blast wave from the 1843 eruption of $latex \eta&bg=ffffff$ Carinae", by Nathan Smith. It appears in the 11 September issue of Nature, and can be found under this link.

We wondered if this event had happened today, would LIGO have detected it? We chose to attack the problem by finding the necessary energy put into gravitational waves. We used a formula from "300 Years of Gravitation", page 371:

$latex h_{c}\simeq2.7\times10^{-20}\left(\frac{\Delta E_{GW}}{M_{sun}c^{2}}\right)^{\frac{1}{2}}\left(\frac{1\,\mathrm{kHz}}{f_{c}}\right)^{\frac{1}{2}}\left(\frac{10\,\mathrm{MPc}}{r_{o}}\right)&bg=ffffff$

After making our assumptions and plugging and chugging (thanks Peter!), we came up with $latex \Delta E_{GW} \simeq 2\times10^{47}&bg=ffffff$, which is about 1% of the energy we can see in the motion of the Homunculus nebula (the object that resulted from the Great Outburst of 1843). That didn't sound too implausible, so we thought it bore further investigation.

A second question, which we had no way to answer, was "what effect does this event have othe population of supernovae", since some events we would have classified as SN may be just energetic outbursts. I thought we might see multiple SN happening on the same point in the sky, but the rate should be so low we wouldn't see them yet. I don't know if this type of event is already incorporated in the SN observation models.

Hubble-teleskooppi taltioi tuntemattoman kohteen

Wespa — Fri, 19 Sep 2008 17:38:31 +0000

[caption id="attachment_1519" align="alignnone" width="341" caption="Ennen ja jälkeen -kuva."][/caption]

Tiedemiehet kertovat, että avaruudesta on löydetty tunnistamaton kohde. Kohde hävisi sadan päivän tutkimuksen jälkeen ilman selitystä. Kyseessä ei voi siis olla meteoriitti tms. sillä kohde oli paikallaan useita päiviä ja sitten se vain katosi avaruuden tyhjyyteen. Koko homma oli kuitenkin vieläkin oudompi. Kohde ei nimittäin aluksi edes ollut siellä, vaan ilmestyi yhtä ihmeellisesti, kuin katosikin.

Tiedemiehien mukaan kysessä ei ole galaksi, eikä supernova ja he kertoivat, että kohde on jotain, mihin he eivät ole koskaan ennen törmänneet. Kohteen tarkka sijaintikin jäi arvoitukseksi.

Lähde: gizmodo.com

Kiitokset vinkistä Calio Jackille.

NASA Photo of the Day: Supernova Ribbon From Hubble

spacehub — Fri, 19 Sep 2008 13:37:01 +0000

[caption id="attachment_34" align="alignleft" width="160" caption="Space Ribbon"][/caption]

What created this unusual space ribbon? Most assuredly, one of the most violent explosions ever witnessed by ancient humans. Back in the year 1006 AD, light reached Earth from a stellar explosion in the constellation of the Wolf (Lupus), creating a "guest star" in the sky that appeared brighter than Venus and lasted for over two years.

Read full article at APOD

Điện thoại Nokia 7610 Supernova

van Nistelrooy — Wed, 17 Sep 2008 15:06:39 +0000

Tuần trước, Nokia tung ra phiên bản tiếp theo của bộ sưu tập “sao băng”, chiếc máy mang số hiệu 7610 Supernova kế thừa thành công của 7610 đình đám một thời.

Nokia 7610 Supernova có vỏ màu lạ mắt. Ảnh: Farm3.

7610 Supernova có thiết kế dạng trượt và được khoác một bộ vỏ màu lòe loẹt khá lạ mắt - một điều khá lạ lẫm đối với một sản phẩm thương hiệu Nokia. Cảm nhận đầu tiên khi bạn có dịp chiêm ngưỡng sản phẩm này là mặt trước và nắp lưng máy có màu sắc đối chọi nhau. Phong cách này có lẽ sẽ phù hợp với tính cách "nổi loạn" của giới trẻ ngày nay, một đối tượng mà Nokia nhắm tới?

Bỏ qua vẻ lạ lẫm trên, Nokia 7610 Supernova có kích thước khá gọn tay và nhẹ (99 gram). Với cơ chế trượt trơn tru và nhẹ nhàng, bạn chỉ cần dùng một ngón tay “nhích” lên là có thể sử dụng bàn phím. Các phím số được thiết kế tách biệt, cách khoảng, dễ dàng thao tác nhưng sẽ khá khó khăn nếu người dùng muốn thể hiện mình bằng việc thao tác mà không nhìn bàn phím. Bên hông máy được bố trí thêm các phím chỉnh âm lượng, truy cập trình phát nhạc, chụp ảnh chuyên dụng.

Màn hình kích thước 2 inch, độ phân giải QVGA (240 x 320 pixel), 16 triệu màu. Bề mặt màn hình có dạng gương, một điểm rất thích hợp với các bạn nữ khi muốn kiểm tra lại dung nhan của mình. Tuy nhiên, điều này sẽ khiến cho nó không hiển thị tốt ở ngoài trời. Ngoài ra, một tính năng khá thú vị, bạn có thể tùy biến, thay đổi màu sắc hình nền chủ đề của màn hình máy nhờ khả năng nhận diện màu sắc của camera.

Chiếc điện thoại có camera 3,2 Megapixel. Ảnh: Phonereport.

Nokia 7610 Supernova có camera với độ phân giải 3,2 Megapixel, chế độ tự động lấy nét, zoom số 8x, kèm đèn Flash kép trợ sáng. Máy có khả năng quay video với độ phân giải VGA, 15 khung hình/giây. Thử nghiệm trong điều kiện ánh sáng tốt (ban ngày), camera của máy cho chất lượng hình ảnh và màu sắc tốt. Với đèn flash kép, các bức ảnh chụp trong điều kiện thiếu sáng (ban đêm) chỉ đạt chất lượng chấp nhận được trong khoảng cách từ 1 đến 1,5 mét.

Bộ nhớ trong là 30 MB cùng khả năng mở rộng bằng thẻ nhớ MicroSD dung lượng tối đa 2GB, có thể rút nóng. Khi dung lượng thẻ nhớ dần được nâng lên mức 8GB hoặc 16 GB thì khả năng hỗ trợ thẻ nhớ ở mức 2 GB là tương đối ít với nhu cầu lưu trữ dữ liệu.

Nokia 7610 Supernova ở chế độ chờ. Ảnh: Dân Trí.

Trình nghe nhạc hỗ trợ hầu hết các định dạng nhạc phổ biến hiện nay (AMR, AAC, MP3, WMA…). Các định dạng video như 3GP, MP4, WMV và máy thu radio hỗ trợ sóng FM cũng được tích hợp. Chất lượng loa ngoài của máy khi ở mức âm lượng cao nhất khá lớn và trong. Nhưng do thiết kế loa nằm ở mặt sau nên để không ảnh hưởng đến âm lượng của loa phát, bạn phải đặt úp máy xuống bàn, khá bất tiện.

7610 Supernova hỗ trợ kết nối với máy vi tính và truyền hình ảnh ra TV hoặc máy chiếu thông qua cáp, ngõ ra âm thanh 2,5 mm, Bluetooth, công nghệ A2DP - kết nối với các tai nghe nhạc stereo.

Dịch vụ bản đồ Nokia miễn phí giúptìm địa điểm, lập lộ trình tại hơn 150 nước trên thế giới (chưa hỗ trợ bản đồ Việt Nam). Tiện ích Yahoo Go! cài sẵn dùng để đọc tin tức, kiểm tra email, thời tiết.

7610 (ngoài cùng bên trái) trong bộ Supernova. Ảnh: Techtree.

Máy sử dụng hệ điều hành Series 40 đơn giản với giao diện thân thiện, dễ sử dụng. Ngoài các ứng dụng và trò chơi cài sẵn trên máy, bạn cũng có thể cài thêm các ứng dụng hoặc trò chơi JAVA thông qua máy vi tính hoặc từ các nhà cung cấp thông qua GPRS. 7610 Supernova chỉ có thể hỗ trợ các file Java có dung lượng tối đa 1 MB

Máy có thể sử dụng trên hệ thống mạng GSM 4 băng tần. Dù không hỗ trợ hệ thống mạng 3G tiên tiến, một tính năng không hữu dụng tại thị trường Việt Nam hiện tại. Điểm khiếm khuyết này sẽ làm giảm và mang đến một mức giá hợp lý hơn cho sản phẩm.

Máy sử dụng pin Li-Ion dung lượng 860 mAh, thực tế thời gian hoạt động của máy ở tần suất trung bình vào khoảng 3,5 ngày. Chất lượng loa thoại dùng cho cuộc gọi cho âm thanh rõ và ấm. Tại những khu vực sóng yếu, khả năng bắt sóng của máy tương đối ổn định và không rớt sóng.

Điểm mạnh:

- Kiểu dáng thời trang, thay đổi vỏ màu (nắp lưng máy).
- Màn hình gương.
- Thay đổi màu sắc chủ đề màn hình.

Điểm yếu:

- Màn hình kích thước hơi nhỏ.
- Hỗ trợ dung lượng tối đa của thẻ nhớ không nhiều (chỉ 2 GB).

Thông tin thị trường

- Nokia 7610 Supernova đã có mặt trên thị trường với giá bán lẻ khoảng 4,9 triệu đồng.
- Sản phẩm có 2 màu: trắng (kèm nắp lưng màu tím hoa cà và xanh đậm) và xám (kèm nắp lưng màu đỏ và xanh đậm).
- Phụ kiện đi kèm máy bao gồm: pin, tai nghe, sạc, thẻ nhớ 512 MB.

(Theo Số Hóa)

El primer OVNI avistado por el Hubble (o la ciencia progresa en el mar de la ignorancia)

emulenews — Tue, 16 Sep 2008 08:33:41 +0000

Un OVNI es un objeto volante no identificado. El Telescopio Espacial Hubble ha observado un OVNI, un objeto no asociado a ninguna galaxia, por lo tanto un objeto "volante" por el universo, que ha "guiñado el ojo" al Hubble y los científicos han quedado desconcertados pues las propiedades de su parpadeo no tienen explicación actualmente (objeto volante no identificado).

El artículo técnico de K. Barbary et al., "DISCOVERY OF AN UNUSUAL OPTICAL TRANSIENT WITH THE HUBBLE SPACE TELESCOPE," Accepted to ApJ: September 8, 2008 , ha denominado al OVNI con el curioso nombre de SCP 06F6, un transitorio óptico no usual (lo único que hemos visto es su luz) encontrado durante una búsqueda rutinaria de supernovas. Se comparan fotos de la misma región del cielo en diferentes momentos buscando que aparezca una luz no previamente observada. Cuando se observa, se repiten las observaciones periódicamente para comprobar sus propiedades y determinar el tipo de supernova observada. Además, se utilizan otros telescopios terrestres para enfocar a dicha luz, obtener su espectro y determinar qué tipo de supernova (u objeto) es el responsable del "fogonazo."

SCP 06F6 ha sido descubierta en el "Hubble Space Telescope Cluster Supernova Survey" y es sorprendente por muchas razones. La fuente luminosa ha brillado durante 100 días alcanzando un pico de magnitud estelar 21. No se ha observado ninguna galaxia ni estrella en el punto donde ha aparecido la fuente. Los espectros ópticos son "excepcionales" mostrando 5 bandas de absorción anchas entre 4100°A y 6500°A, y prácticamente un continuo sin bandas más allá de los 6500°A. La forma de este espectro de luz es inconsistente con cualquier fenómeno conocido (comprendido) hoy en día, ni microlentes gravitatorias, ni ningún tipo de supernova, ni siquiera se parece a ningún espectro observado previamente en la base de datos de objetos de cielo profundo (Sloan Digital Sky Survey).

La nueva fuente es el primer objeto de un nuevo tipo de objetos en el universo. Por ahora, el OVNI ideal para los ufólogos.

¿Podría ser un objeto de nuestra galaxia (corrimiento al rojo z=0)? Las líneas a 4320°A and 4870°A son consistentes con las líneas del Hidrógeno gamma (4341°A) y beta (4861°A), respectivamente, sin embargo, falta la importantísima línea alfa (6563°A), de la que hay cierta rastro en el espectro obtenido con el telescopio terrestre Keck, pero no aparece en los obtenidos con los telescopios VLT y Subaru. No se han podido identificar líneas espectrales de otros elementos. Lo que se ha observado no tiene explicación según las teorías astrofísicas actuales. Más aún, las características espectrales observadas son casi (pero no exactamente) periódicas en la longitud de onda. ¡Una locura!

¿Podría ser un objeto extragaláctico? El cluster que se estaba observando tiene un corrimiento z=1.1, luego podría ser un objeto con 0<z<2.7, el límite superior debido a la ausencia de la línea de Lyman a 4500°A. Una estimación del flujo de energía emitida por un objeto a z=1.1 con una magnitud aparente de 21 es comparable al de las supernovas más poderosas hasta el momento, SN 2005ap y SN 2006gy, sin embargo, el espectro continuo observado no corresponde con la radiación que emitiría una supernova.

Recapitulemos un OVNI con las siguientes propiedades: Una curva de luminosidad simétrica alrededor de un pico que se ha alcanzado en unos 100 días, variaciones pequeñas de color estadísticamente significativas en todo el espectro, no se ha detectado ni galaxia ni otro objeto progenitor, el espectro presenta picos en el azul y es prácticamente continuo en el rojo, y hay cierta evidencia de cambios (evolución temporal) en el espectro.

Un nuevo jeroglífico para los astrónomos (¿o para las ufólogos?).

Por cierto, el Kanijo nos recuerda que la "Explosión estelar que fue el objeto más distante visible al ojo desnudo," de marzo de 2008, ahora parece que dicho "Estallido de rayos gamma visible "a simple vista" fue dirigido directamente contra la Tierra," según se publicó en la revista Nature, ¿por fuentes extraterrestres?

Hasta CORDIS habla del tema "Astrónomos revelan que una explosión masiva de rayos gamma apuntaba a la Tierra."

Y ahora, Iker se levanta del sillón y dice...

SuperNova - Lucy Dos Santos Luis & White-X-Blues-Band

whiteaxxxe — Mon, 15 Sep 2008 10:14:26 +0000

[caption id="attachment_24" align="aligncenter" width="300" caption="Lucy Dos Santos Luis & White-X-Blues-Band - SuperNova"][/caption] [caption id="attachment_26" align="aligncenter" width="300" caption="Back-Cover SuperNova mit Titel-Liste, Liner-Notes und Credits"][/caption]

Hier ist sie nun ... SuperNova ... nach 8 Jahren ...

Eigentlich ist jede Beschreibung dieses Albums deswegen überflüssig, weil man es nicht beschreiben kann. Es ist eines der intensivsten Alben schlechthin, es ist psychedelisch, hippieesk, geradlinig, akustisch, elektrisch, elaboriert und einfach, es hat extremen tiefgang und kann deswegen himmelhoch fliegen ... es ist die "Mutter aller Alben", es ist nicht als Hintergrund-Beschallung geeignet, man muss schon HÖREN.

Die Sache ist nun die, dass man ein Archiv mit allen auf dem Album versammelten Stücken kostenlos herunterladen kann. Inklusive der Cover, in einer Grösse, dass man auch lesen kann, was drauf steht.

Dieses Archiv gibt es hier.

Die Sache hat einen Haken: Das Archiv ist passwortgeschützt. Das Passwort bekommt man an der gleichen Stelle wie das Archiv, indem man sich als User in der Google-Group "LDSL-SuperNova" anmeldet. Oder eine Email schreibt. Adresse auf der Download-Seite. Da stehen auch noch ein paar Erklärungen und Beschreibungen.

Nun gut, schlussletzlich noch die Möglichkeit, das Album ganz einfach zu kaufen:

Buy the album in HighQuality-MP3 for € 7.99 / USD 9.99 here!

Grüsse,

Lucy Dos Santos Luis & WhiteAxxxe

Nach einem Jahr ...

whiteaxxxe — Mon, 15 Sep 2008 09:43:27 +0000

... fiel mir ein, dass ich ja ein WordPress-Blog habe.

OK, die vor einem Jahr angekündigten Arbeiten sind immer noch nicht fertig. Das heisst aber nicht, dass nichts passiert wäre. Man schaue sich SuperNova an. Die Dinge brauchen eben eine Weile, und manchmal kommt irgendwas dazwischen.

Es gab auch noch die DSK-Sampler, das "Secret Drummer" - Projekt und jede Menge anderer Dinge, wie die Sache mit Shawn Harvey und Albert Lee. Sowieso gibt es da ja jetzt neben "die mennekrather" noch eine tatsächlich live spielende Band: Shawn Harvey`s B57. Auch eine Menge Arbeit ...

Und nun werde ich SuperNova mal genauer beschreiben. Anderer Artikel ... bitte nachsehen.

In Pre- production: Permanence

Today's Trash — Fri, 12 Sep 2008 09:18:32 +0000

I love making commitments so that I will be forced to do something. So here I am, making another one to you my dear readers. (that felt awkward, hehe)

I am working on another comic series, also 12 pages long, entitled "Permanence". It's in the pre- production process already. The concept is now solid and the script is currently in production already. Yes, Permanence is the sequel of Supernova so you guys will see what the hell happened to the two after their uhm... "thing".

I will post updates on this project so I hope you guys stay (tuned) to my site. Get those markers and shoes ready.

Είμαστε παιδιά των αστεριών..

stardust30 — Fri, 12 Sep 2008 07:56:32 +0000

Ο πιο κοντινός μας συγγενής είναι τα αστέρια αγαπητοί φίλοι. Ο σίδηρος που περιέχει η αιμοσφαιρίνη του αίματός μας προέρχεται από την καρδιά των αστεριών που έχουν σβήσει εδώ και χιλιάδες χρόνια τώρα.

[caption id="" align="alignnone" width="447" caption="Ιδού η πηγή κάθε πηγής ζωής στον πλανήτη μας "][/caption]

Η έκρηξη υπερκαινοφανούς δημιουργεί ένα κύμα στον γύρω χώρο, αφήνοντας ένα είδος νεφελώματος που είναι γνωστό ως υπόλειμμα υπερκαινοφανούς. Οι εκρήξεις σουπερνόβα είναι η κύρια πηγή όλων των βαρύτερων του οξυγόνου στοιχείων, και η μοναδική πηγή πολλών σημαντικών στοιχείων. Για παράδειγμα, όλο το ασβέστιο στα κόκαλά μας και όλος ο σίδηρος του οργανισμού μας έχουν παραχθεί σε κάποια έκρηξη υπερκαινοφανούς, εδώ και εκατομμύρια χρόνια. Η έκρηξη μεταφέρει αυτά τα βαριά στοιχεία στο μεσοαστρικό χώρο, εμπλουτίζοντας τα μοριακά νέφη (αστρική σκόνη ή αστρόσκονη) που αποτελούν την πρώτη ύλη για τον σχηματισμό των αστέρων και των πλανητών. Αυτή η διαδικασία εμπλουτισμού είναι που καθόρισε τη σύνθεση του Ηλιακού Συστήματος πριν από 4,5 δισεκατομμύρια χρόνια, και τελικά έκανε εφικτή τη χημεία της ζωής στη Γη. Κάθε άτομο του σώματός μας, κάθε μόριο του αέρα που αναπνέουμε δημιουργήθηκαν σ' ένα άστρο κι έφτασαν ως εδώ με μια έκρηξη υπερκαινοφανούς. Κατά μια έννοια, είμαστε κυριολεκτικά «παιδιά των αστεριών».

Nova στα λατινικά σημαίνει «νέα» και αναφέρεται σε αυτό που μοιάζει να είναι ένα πολύ φωτεινό νέο αστέρι (το ουσιαστικό stella στη Λατινική, που σημαίνει αστέρας, είναι θηλυκό) στην ουράνια σφαίρα. Οι αστρονόμοι του Μεσαίωνα, μη γνωρίζοντας ότι παρατηρούσαν μια έκρηξη, θεωρούσαν ότι επρόκειτο για την εμφάνιση ενός νέου αστεριού, εξ ου και το όνομα, που πρωτοχρησιμοποιήθηκε απ' τον Τύχο Μπράχε.

Το πρόθεμα «υπερ-» ("Super") ξεχωρίζει αυτό το γεγονός από τους απλούς καινοφανείς αστέρες ή νόβες (novae), που είναι αστρικές εκρήξεις οι οποίες επίσης σχετίζονται με την αύξηση της φωτεινότητας ενός είδους διπλού αστέρα, αλλά σε μικρότερη κλίμακα και μέσω ενός διαφορετικού μηχανισμού. Παρ' όλα αυτά είναι λάθος να θεωρούμε τη σουπερνόβα ένα νέο αστέρι, επειδή στην πραγματικότητα είναι ο θάνατος ενός αστεριού (η τουλάχιστον η ριζική μετατροπή του σε κάτι τελείως διαφορετικό, ένα αστρικό πτώμα).

What is this?!

Suzumiya Haruhi — Wed, 10 Sep 2008 09:20:39 +0000

Urgh! i'm so bored! Theres no cons on so I can't hold any events or anything!

I'm still looking for members! >D

Supernova was a drag. They canceled the Dance-off. Which was a shame I would've wiped the floor with my hare hare yukai!!! For some reason Mikuru, Itsuki and Yuki all had errands to run. So I was stuck with Kyon all day. Since I didn't have my photographer I only got one photo!!

[caption id="attachment_11" align="aligncenter" width="225" caption="Me and Kyon at Supernova"][/caption]

Fine! Next con I'll blow them all away!!! >D

Haruhi Suzumiya

Upcoming Concerts ft. DBSK

lovetohateme — Tue, 09 Sep 2008 15:35:03 +0000

There are a lot of concerts lined-up for the boys these following weeks and months. Here's a list of the concerts they'll be participating in:

Event: SMTOWN LIVE '08 in Shanghai

Date: September 13, 2008

Time: 6:00pm - 11:00pm

Venue: Shanghai Stadium

Performers: TVXQ, Super Junior, SHINee, BoA, The Grace, SNSD, Jang Ri In

Event: 2008 Asia Song Festival

Date: October 4, 2008

Time: 6pm - 10pm

Venue: Seoul World Cup Stadium

Performers: TVXQ, SHINee, SNSD, and other Asian artists

Event: 2008 Big Music Festa

Date: October 11, 2008

Time: unknown

Venue: Munsu Cup Stadium

Performers: TVXQ, Wonder Girls, Big Bang, SNSD, Jewelry, and V.O.S

Event: Super Concert

Date: October 25, 2008

Time: 6pm

Venue: Bucheon Sports Complex

Performers: TVXQ, Super Junior, Jun Jin, and Wheesung

2008 MNET KOREAN MUSIC FESTIVAL [MKMF]

Event: MNET Korean Music Festival

Date: November 15, 2008

Time: 7pm - 10pm

Venue: Seoul Olympic Stadium

Performers: TVXQ, Super Junior, SS501, Big Bang, SG Wannabe, SHINee, Battle, Wonder Girls, SNSD, Hyori, FT Island, Supernova, MC Mong, Ivy, Dong Wan

Event: SMTOWN LIVE '08 in Bangkok

Date: November 29, 2008

Time: 5pm - 10pm

Venue: Rajamangala National Stadium

Performers: TVXQ, Super Junior, SHINee, SNSD, The Grace, Jang Ri In

Wow, looks like the boys will be busy in the "-ber" months. Aside from releasing their 4th Korean album and their 24th Japanese single, they will be participating in different concerts both in Korea and overseas. Seriously, do these guys still have time to rest? Although I'm happy to see them perform in numerous concerts, I still hope they're having enough rest. We wouldn't want them to get sick of fatigue or anything, right?

Anyway, I'm looking forward to these concerts. I wish to watch them live but I'm such an unfortunate kid this year so I'd have to kiss that wish goodbye. But I'm excited to see pictures and fancams of the boys plus read some fan accounts. If you happen to attend any of these concerts and you have any fan accounts, I hope you could share them to me (and to the other readers, too)! :D

P.S. DBSK, Super Junior, Big Bang, and SS501 will perform on the same stage at the 2008 MNET Korean Music Festival. Although they may not perform together in one number, the fact that they are on one concert excites me very much. Nothing... just a random thing that crossed my mind. Hahaha. =)