s******l
发帖数: 278 | 1 The advent of the Field Process shield and the lasgun with
their explosive interaction, deadly to attacker and
attacked, placed the current determinatives, on weapons
technology. We need not go into the special role of atomics.
The fact that any Family in my Empire could so deploy its
atomics as to destroy the planetary bases of fifty or more
other Families causes some nervousness, true. But all of us
possess precautionary plans for devastating retaliation.
Guild and Landsraad contain the keys w |
|
s******l
发帖数: 278 | 2 There exist obvious higher-order influences in any planetary
system. This is often demonstrated by introducing terraform
life onto newly discovered planets. In all such cases, the
life in similar zones develops striking similarities of
adaptive form. This form signifies much more than shape; it
connotes a survival organization and a relationship of such
organizations. The human quest for this interdependent order
and our niche within it represents a profound necessity. The
quest can, however, be |
|
n***s
发帖数: 294 | 3 In "Calculating Gods", this star turned to SuperNova triggered by an alien
species who wanted to sterilize planetary systems in hundreds of light-years
range.
将有
640 |
|
c****t
发帖数: 19049 | 4 HALF-LIVES
the first luisa rey
mystery
I
Rufus Sixsmith leans over the balcony and estimates his body’s velocity
when it hits the
sidewalk and lays his dilemmas to rest. A telephone rings in the unlit room.
Sixsmith dares not
answer. Disco music booms from the next apartment, where a party is in full
swing, and
Sixsmith feels older than his sixty-six years. Smog obscures the stars, but
north and south
along the coastal strip, Buenas Yerbas’s billion lights simmer. West, the
Pacific eternity East... 阅读全帖 |
|
l*****a
发帖数: 38403 | 5 【 以下文字转载自 Belief 讨论区 】
发信人: lloydpreston (lloyd), 信区: Belief
标 题: 关于C14探测地球生物年龄的问题
发信站: The unknown SPACE (Fri Jun 7 12:22:24 2002) WWW-POST
其实这不是我的猜测，而是很长时间以来神创论学者对进化论学者的回应
先看看科学家们自己的说法
Lava from the 1801 Havaiian valcano eruption gave a K-Ar date of 1.6
million years old.
Dalyrmple, G.B., 1969 40Ar/36Ar analysis of historic lava flows
-Earth and Planetary Science Letters, 6-47 55.
Living mollusk shells were dated up to 2300 years old. |
|
j*******7
发帖数: 6300 | 6 这篇学术论文是基于中国汉代天文记录推算耶稣诞生时间的研究。
http://adsabs.harvard.edu/full/1977QJRAS..18..443C
Title: An Astronomical Re-Appraisal of the Star of Bethlehem - A Nova in 5
BC
Authors: Clark, D. H., Parkinson, J. H., & Stephenson, F. R.
Journal: Quarterly Journal of the Royal Astronomical Society, Vol. 18, p.443
-449
Bibliographic Code: 1977QJRAS..18..443C
Abstract
Evidence is presented that New Stars recorded in the Far Eastern annals may
be independent sightings of the Star of Bethlehem. A bright nova which
ap... 阅读全帖 |
|
j*******7
发帖数: 6300 | 7 http://www-scf.usc.edu/~kallos/what_is_real.htm
What is real?
Take for example the first successful theory of gravity, Ptolemy's system of
epicycles. It was used before Newton to describe the motion of the planets,
by assuming that the earth was static in the center of the world and the
planets and the sun revolved around it. It gave relatively accurate results
for astronomical observations. Was it real? I guess not. It just helped the
calculations, correctly, to be carried out.
Then Newton's th... 阅读全帖 |
|
W***q
发帖数: 152 | 8 e. God created: Inherent in the idea of God is that He is an intelligent
designer. Only an intelligent designer could create a just-right universe,
not “chance.” Our universe is a just-right universe.
i. The universe has a just-right gravitational force.
• If it were larger, the stars would be too hot and
would burn up too quickly and too unevenly to support life
• If it were smaller, the stars would remain so cool,
nuclear fusion would never i... 阅读全帖 |
|
RR
发帖数: 561 | 9 既然你把“世界是上帝创造的”作为前提，咱们就讨论一下这句话。
世界是上帝什么时间创造的，怎么创造的，都创造了什么？看看bible怎么说
Bible New International Edition line 1:
"In the beginning God created the heavens and the earth."
如果把bible上所有纪年加起来，大约是6000年(1)，这里说in the beginning，
也就是大约6000年前。根据地质学，地球的年龄是4.55 ± 0.01Gya(2)。再举
一个通俗的例子，6500万年前，恐龙生活在地球上， 这也是无数考古发掘证明了的。
请问如何解释。
(1) Biblical Chronology: Legend Or Science? James Barr, 1987
(2) Lead isotope study of basic-ultrabasic layered complexes:
Speculations about the age of the earth and primitive mantle
charac... 阅读全帖 |
|
t*******d
发帖数: 2570 | 10 有些基督徒说反基都没信仰，其实也不准确，反基也是有信仰的。举个例子吧。以下是
人文主义的信仰。
http://americanhumanist.org/Humanism/Humanist_Manifesto_III
HUMANISM AND ITS ASPIRATIONS
Humanist Manifesto III, a successor to the Humanist Manifesto of 1933*
Humanism is a progressive philosophy of life that, without supernaturalism,
affirms our ability and responsibility to lead ethical lives of personal
fulfillment that aspire to the greater good of humanity.
The lifestance of Humanism—guided by reason, inspired by compassion, and
informed by e... 阅读全帖 |
|
|
S***n
发帖数: 1281 | 12 虽然我并不认为上帝是那样存在的，但我去看了原文报道，感觉霍金的论据真是很弱啊
，逻辑的推演一点都不严格。相当于就是在说：发现一个类似的，就说明原来的那个不
是原创了。
如果他是真的科学家，就应该懂得大数原理，抽屉原则。也不能这么样的头脑发昏的吧。
he said the 1992 discovery of a planet orbiting another star other than the
Sun helped deconstruct the view of the father of physics Isaac Newton that
the universe could not have arisen out of chaos but was created by God.
"That makes the coincidences of our planetary conditions -- the single Sun,
the lucky combination of Earth-Sun distance and solar mass, far less
remarkab |
|
a**u
发帖数: 8107 | 13 ☆─────────────────────────────────────☆
zoun (zoun) 于 (Thu Sep 2 11:58:59 2010, 美东) 提到:
英国著名的物理学家史蒂芬・霍金2日在谈到他最近出版的一本新书时称，他不
再相信上帝创造宇宙的说法。
霍金说，新的科学理论显示，解释生命起源的“自然发生论”完全可以接受。
他在新书《大设计》中称，宇宙起源的大爆炸既不是偶然事件，也不是上帝创造，只是
物理法则的必然结果。
此前，这位自然科学界的泰斗级人物曾相信神造论和科学并不矛盾。
☆─────────────────────────────────────☆
Yisu (yisnotme) 于 (Thu Sep 2 12:21:10 2010, 美东) 提到:
谁能保证过两天会没有新的科学理论证明原来的想法又是正确的？ 用现在的科学来证
明超出它自身能力的一件事， 这种证明结果就是让人无法相信的。
☆─────────────────────────────────────☆
danalake (danalake) 于... 阅读全帖 |
|
l********l
发帖数: 130 | 14 欢迎补充！
Harvard University
1. Sunney Xiaoliang Xie: Mallinckrodt Professor of Chemistry and Chemical
Biology; Member, National Academy of Sciences; Fellow, American Academy of
Arts and Sciences
2. Jun Liu, Professor of Statistics
3. Samuel S. C. Kou, Professor of Statistics
4. Xiaofei Tian: Professor of Chinese Literature
5. Zhiming Kuang: Associate Professor, Dept. of Earth and Planetary
Sciences and School of Engineering and Applied Sciences
6. Shirley Xiaole Liu: Associate Pr... 阅读全帖 |
|
m*******n
发帖数: 261 | 15 是这个东吗？7系出的牛人太多了。
祝贺孙卫东博士在研究工作中取得重要进展！
岩浆聚敛边缘与铜金矿床存在关系已成为公认的事实，但是其具体的关联还存在
很大的争议。我校91级校友孙卫东博士和同事们在这一领域进行了深入的研究并取得了重
要的进展，相关的论文以孙卫东博士为第一作者发表在最新一期的国际权威学术期刊《
Nature》杂志上。（Release of gold-bearing fluids in convergent margin magmas
prompted by magnetite crystallization， NATURE VOL 431， 21 OCTOBER 2004）
孙卫东博士目前在化学地球动力学、同位素地球化学等领域取得了丰硕的成果
，多篇论文发表在《Nature》、《Earth and Planetary Science Letters》、《The
Journal of Geology》、《 J. metamorphic Geol 》等国际权威的学术期刊上。
孙卫东博士简介：
http://polar |
|
g**********y
发帖数: 451 | 16
back
to
He has more than one in Nature. Now he is a rising star.
1. Sun WD, Arculus RJ, Kamenetsky VS, et al.
Release of gold-bearing fluids in convergent margin magmas prompted by
magnetite crystallization
NATURE 431 (7011): 975-978 OCT 21 2004
Times Cited: 1
2. Sun WD, Bennett VC, Kamenetsky VS
The mechanism of Re enrichment in arc magmas: evidence from Lau Basin basaltic
glasses and primitive melt inclusions
EARTH AND PLANETARY SCIENCE LETTERS 222 (1): 101-114 MAY 15 2004
Times Cited: |
|
p*u
发帖数: 2454 | 17
SpaceX sucks: pays peanut money while demanding a lot. planetary resources
has investors like Schmidt, Page and Richard Branson, looks more promising..
. |
|
s******o
发帖数: 298 | 18 At this week's Lunar and Planetary Science Conference, space scientists
presented new insight on Deep Space 1's recent target, Comet Borrelly.
by Vanessa Thomas
On September 22, 2001, NASA's Deep Space 1 probe proved victorious in a daring
adventure when it introduced a comet called Borrelly to the people of Earth.
In a chancy maneuver that day, Deep Space 1 altered our view of Borrelly as a
mysterious, dust-cloaked object to an exciting astrogeology subject.
Designed not as a science mission bu |
|
s******o
发帖数: 298 | 19 By David L. Chandler
Updated March 17, 2001 | All last week, attendees at the 33rd annual Lunar
and Planetary Science Conference in Houston, Texas, looked forward to one of
the meeting's final sessions, whose main attraction was the controversial 4
1/2-billion-year-old Martian meteorite known as ALH 84001. For years David S.
McKay (NASA/Johnson Space Center) and his coauthors have maintained that this
celebrated stone contains strong evidence — but not proof — of fossilized
microbial life.
Frida |
|
s******o
发帖数: 298 | 20 April 4, 2002 | A kilometer-size asteroid, whose whereabouts have been
unknown since just after its discovery 52 years ago, has suddenly reemerged
as an object that may pose a significant threat to Earth in the distant
future. Astronomers at Lowell Observatory rediscovered the wayward object,
known as 1950 DA, by accident on New Year's Eve 2000, and three months later
teams of radar astronomers pinged it from Goldstone, California, and Arecibo,
Puerto Rico. When orbital dynamicists combined the |
|
f*r
发帖数: 3968 | 21 NGC 2440（英文原文）
译：Jack
NGC 2440是另一个行星状星云，但它较NGC 2346有更加复杂的结构。NGC 2440的中央
星是已知最热的恒星之一，表面温度大约200，000摄氏度。其周围星云的复杂结构暗示天
文学家那儿存在源自中央星的周期性的喷射，有点类似NGC 2346。但是对于NGC 2440，每
次喷射的方向是不确定。同时，星云中充满着尘埃云，它们形成了从中央星向外辐射的暗
而长的条纹。另外，对于其中明亮的星云，是由于受中央星辐射的紫外线激发所至。NGC
2440被一个大而冷的星云所包围，它在一般的望远镜中是不可见，但在红外望远镜中却可
以被探测到。NGC 2440坐落在距地球4，000光年的船尾座内。
此照片由哈勃Heritage小组获得。
译自 哈勃网站（http://oposite.stsci.edu）
NGC 2440
（Chinese Version）
NGC 2440 is another planetary nebula ejected by a dying star, but it has |
|
s******o
发帖数: 298 | 22 By Robert Roy Britt
Senior Science Writer
posted: 07:00 am ET
11 April 2002
Astronomers have found the remnants of a thousand dead and dying stars in the
southern part of the Milky Way Galaxy they described as a galactic graveyard.
The findings, from a new sky survey, roughly doubles the known number of so-
called planetary nebulae. These are a poorly named class of objects that
represent the relics of stars that have made their dying gasps by casting
waves of gas and dust into space to create o |
|
s******o
发帖数: 298 | 23 New research is giving both optimistic and pessimistic forecasts for the
chance of finding life on Jupiter's moon Europa.
by Vanessa Thomas
Since planetary scientists began to realize that the Galilean moon Europa
might harbor an ocean of water underneath its icy surface, they have dreamed
of the possibility that aquatic life might thrive there. A pair of space
scientists believes there is plenty of biotic material on Europa to develop
life. But another researcher counters that the thickness of |
|
s******o
发帖数: 298 | 24 The NetLander mission will try to detect the martian counterpart of earth-
quakes.
by Julie Tepereva
Earthquakes great and small happen virtually every day on our planet. Even
our moon experiences quakes. But do any of our planetary neighbors, like Mars,
get shaken? Scientists don't know, but they will soon find out.
Since the 1960s, researchers have sent numerous spacecraft to explore Mars.
These probes, such as the Mariner series, brought back images of craters and
relics of ancient volcanoes |
|
s******o
发帖数: 298 | 25 By J. Kelly Beatty
July 11, 2002 | After a year-long study, a National Research Council panel
has concluded that sending a spacecraft to several bodies in the Kuiper Belt,
including Pluto, should be NASA's highest solar-system priority in the coming
decade. The NRC study, conducted by 60 top U.S. planetary scientists and
released today, also endorses a Europa Geophysical Explorer (EGE) mission to
place a craft in orbit around Jupiter's enigmatic icy moon Europa, as well
as several other missions |
|
s*****t
发帖数: 1994 | 26 Rectangular Ridges on Mars
Credit: Malin Space Science Systems, MGS, JPL, NASA
Explanation: What could cause rectangular ridges on Mars? As data flows in from the two
spacecraft currently orbiting Mars, surface structures are seen that are not immediately
understood. These structures pose puzzles that planetary geologists are eager to solve, as
they might provide clues to past processes that have shaped Mars over billions of years. On
the right of the above image is an unusual array |
|
j*c
发帖数: 97 | 27 Date: 21 Oct 2002 15:45:04 GMT
From: Ron Baalke
Newsgroups: sci.astro, alt.sci.planetary, alt.astronomy, alt.soc.comets
Subject: Rosetta Shipped To South American Launch Site
MEDIA RELATIONS OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011
http://www.jpl.nasa.gov
Contact: JPL/Guy Webster (818) 354-6278
Southwest Research Institute/Maria Martinez (210) 522- |
|
s*****t
发帖数: 1994 | 28 Gullies on Mars
Credit: Malin Space Science Systems, MGS, JPL, NASA
Explanation: The Gullies of Mars would probably not have been sensational enough for the
title of a vintage Edgar Rice Burroughs story about the Red Planet. But it would get the
attention of planetary scientists today. First identified in high resolution images of Mars
recorded by the orbiting Mars Global Surveyor spacecraft, the gullies are interpreted as
startling evidence that liquid water flowed across the martia |
|
s*****t
发帖数: 1994 | 29 The Dumbbell Nebula in Hydrogen and Oxygen
Credit & Copyright: George Jacoby (NOAO) et al., WIYN, AURA, NOAO, NSF
Explanation: The first hint of what will become of our Sun was discovered inadvertently in
1764. At that time, Charles Messier was compiling a list of "annoying" diffuse objects not to
be confused with "interesting" comets. The 27th object on Messier's list, now known as M27
or the Dumbbell Nebula, is a planetary nebula, the type of nebula our Sun will produce when
nuclear fusion |
|
s*****t
发帖数: 1994 | 30 http://sciencenow.sciencemag.org/cgi/content/full/2003/306/1
A Long, Slow Look at Jupiter
A spacecraft's dress rehearsal for an encounter with Saturn next year has yielded
unexpectedly rich findings about Jupiter. While flying past Jupiter, the Cassini mission
took tens of thousands of images that planetary scientists have assembled into
startling movies. Among the surprises are banded jets that persist in the atmosphere
near Jupiter's poles |
|
s*****t
发帖数: 1994 | 31 The Egg Nebula in Polarized Light
Credit: Hubble Heritage Team (STScI/AURA), W. Sparks (STScI) & R. Sahai (JPL), NASA
Explanation: Where is the center of the unusual Egg Nebula? Like a baby chick pecking its
way out of an egg, the star in the center of the Egg Nebula is casting away shells of gas and dust
as it slowly transforms itself into a white dwarf star. The Egg Nebula is a rapidly evolving
pre-planetary nebula spanning about one light year toward the constellation of Cygnus. Thick
dust, t |
|
s*****t
发帖数: 1994 | 32 Magma Bubbles from Mt. Etna
Credit & Copyright: Marco Fulle (Stromboli online)
Explanation: Mt. Etna erupted spectacularly in 2001 June. Pictured above, the volcano was
photographed expelling bubbles of hot magma, some of which measured over one meter
across. One reason planetary geologists study Earth's Mt. Etna is because of its likely
similarity to volcanoes on Mars. Mt. Etna, a basalt volcano, is composed of material similar to
Mars, and produces similar lava channels. Located |
|
s*****t
发帖数: 1994 | 33 NGC 7293: The Helix Nebula
Credit: NASA, NOAO, ESA, Hubble Helix Nebula Team, M. Meixner (STScI), & T. A.
Rector (NRAO)
Explanation: Will our Sun look like this one day? The Helix Nebula is the closest example of
a planetary nebula created at the end of the life of a Sun-like star. The outer gasses of the star
expelled into space appear from our vantage point as if we are looking down a helix. The
remnant central stellar core, destined to become a white dwarf star, gl |
|
s*****t
发帖数: 1994 | 34 A Tale of Two Nebulae
Credit & Copyright: Brian Lula
Explanation: This colorful telescopic view towards the northern constellation Lyra reveals
dim outer regions around M57, popularly known as the Ring Nebula. While modern
astronomers still refer to M57 as a planetary nebula, at one light-year across M57 is not a
planet but the gaseous shroud of a dying sun-like star. Roughly the same apparent size as M57,
the fainter, often overlooked barred spiral galaxy IC1296 is at the l |
|
s*****t
发帖数: 1994 | 35 HD70642: A Star with Similar Planets
Illustration Credit & Copyright: David A. Hardy, PPARC
Explanation: Astronomers have discovered a planetary system more similar to our own
Solar System than any known previously. The bright star HD70642, visible with binoculars
toward the constellation of Puppis, was already known to be a star like our Sun. Now a planet
with twice Jupiter's mass has been discovered in a nearly circular orbit at approximately half
the orbital distance of Jupiter. Su |
|
s*****t
发帖数: 1994 | 36 Dumbbell Nebula Halo
Credit & Copyright: Robert Gendler
Explanation: In 1764, French astronomer Charles Messier sighted this gorgeous cosmic
cloud which he described as an oval nebula without stars. Cataloged as M27, it is now
popularly known as the Dumbbell Nebula, not for its substandard academic performance but
for the elongated shape, like a bar with weights on each end, which first caught Messier's eye.
This deep image of the bright planetary nebula does reveal the Dumbel |
|
s*****t
发帖数: 1994 | 37 Earth Webcam Catches Mars Rotation
Credit: Howard C. Anderson (Astroshow.com)
Explanation: Mars won't look this good. Tonight and over the next few days, when Mars is at
its closest approach to Earth in nearly 60,000 years, you might get your best view ever of our
planetary neighbor. Please, though, don't expect to see this much structure, or expect to see
Mars rotate so much in so brief a period. The above 20-frame movie was created from 1000
frames of a backyard webcam that wer |
|
s*****t
发帖数: 1994 | 38 Dust and the Helix Nebula
Credit: NASA, JPL-Caltech, Kate Su (Steward Obs, U. Arizona) et al.
Explanation: Dust makes this cosmic eye look red. The eerie Spitzer Space
Telescope image shows infrared radiation from the well-studied Helix Nebula
(NGC 7293) a mere 700 light-years away in the constellation Aquarius. The
two light-year diameter shroud of dust and gas around a central white dwarf
has long been considered an excellent example of a planetary nebula,
representing the final stages in the |
|
w****i
发帖数: 155 | 39
XT８： ８＂， f６， ４０lb： 口径小一些， 轻一些， 便于携带，搬运，而 f大，
调光轴容易， coma少，对EP不是那么挑剔；另外就是CO只有２３％， 对比度（理论上
）好；
XT１０： １０＂， f４.７， ５５lb， 口径的优势在globular cluster上最明显，
看planetary nebular也好一些， galaxy的表现和８＂的差异不大， 重， 搬运不便，
大小和８＂差不多， f小， 所以光轴调整稍微困难一些， coma多， 对EP比较挑，可
能需要coma corrector获得最佳效果， CO ２５％。
总的来说， １０＂的Dob是一个很好的折衷， 强烈推荐给中级用户。 |
|
s*****t
发帖数: 1994 | 40 The Cat's Eye Nebula from Hubble
Credit: NASA, ESA, HEIC, and The Hubble Heritage Team (STScI/AURA)
Explanation: Staring across interstellar space, the alluring Cat's Eye
nebula lies three thousand light-years from Earth. A classic planetary
nebula, the Cat's Eye (NGC 6543) represents a final, brief yet glorious
phase in the life of a sun-like star. This nebula's dying central star may
have produced the simple, outer pattern of dusty concentric shells by
shrugging off outer layers in a series of |
|
w********s
发帖数: 59 | 41 刚买了Celestron Nexstar 102mm refractor 和一些目镜还有滤镜。请教各位怎么才能
看见大行星的细节？用４mm或6mm的目镜可以看见木星的大红斑和火星的冰盖吗？这样
的望远镜能让我看见多少细节？大家有照片吗？谢谢！ |
|
Z**R
发帖数: 1233 | 42 Focal Length 660mm 这个？
应该能看到木星的条带和大红斑。冰盖没看到过，呵呵 |
|
|
w********s
发帖数: 59 | 44 是的，660mm. 应该用什么样的目镜才能看见大红斑呢？ |
|
w********s
发帖数: 59 | 45 请问有什么办法能降低色差？
还有口径应该多大才行呢？能推荐几种吗？ |
|
a*******r
发帖数: 7558 | 46 透镜做好后色差性能就定了，我还不知道现在有什么新技术
15厘米以上吧 |
|
Z**R
发帖数: 1233 | 47 102，还可以啦，现在应该都是消色差的了吧？
我的90都能看到条带
用适当的滤镜也可以提高一下反差 |
|
z*****a
发帖数: 7716 | 48 最近正在看第一颗被发现的transting planet的数据，想看planetary atmosphere来着，
还没看着什么东东。。 |
|
a*******r
发帖数: 7558 | 49 就是球。
imke de pater的第九章的一道题 |
|
a*******r
发帖数: 7558 | 50 就是球。
imke de pater的第九章的一道题 |
|
