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全部话题 - 话题: sedimentation
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l****e
发帖数: 157
1
首次买房,1985年的town house,1600 平方英尺。请了一个网络上评价较好的
inspector,查了2个小时。刚刚收到报告,我把它简化一下列在下面。您们帮我看看有
哪些是必需修的,大概得花多少钱。多谢了!
1. WATER HEATER / VENTING
1.1. Unit is near end of life due to age (existing is 21 years old type,
life span of this type units are 10 to 12 years). Recommend to monitor/
replace.
1.2. Gas line at water heater without drip leg/sediment trap (this type
installation is common for the area/age).
1.3. Seismic straps are too loose.
1.4. Wood cabinet touches vent pipe. A fire ha... 阅读全帖
T****Y
发帖数: 274
2
来自主题: Living版 - 热水放久了出来细细的土
是怎么回事?网上查了一下,可能是water heater 的sediment.
怎么整?自己弄还是找人弄?找人要找什么样的人?
i****a
发帖数: 36252
3
来自主题: Living版 - 家用过虑水
https://www.amazon.com/gp/product/B001DVW0PI
Filtrete 3US-SP01
It reduces chlorine taste and odor, removes sand, soil, rust and sediment.
It also captures airborne allergens using electrostatically charged filter
media.
离子交换柱 = electrostatically charged filter media ?
x**l
发帖数: 2337
4
前房主2014年安装的墨西哥产的PG系列热水器,昨天发现房子外面一根管子在流水,还
以为是空调产生的呢,昨晚洗澡发现没热水,今天发现那个管子还在流水,于是就检查
了一下发现水来自热水器。找plumbing公司的人来看了一下,人家说我们进水管的水压
是150了(正常应该是100),原因是我们主管道的Pressure Reducing Valve坏了,然
后导致我们热水器的compressor relief valve损坏。光Pressure Reducing Valve就
charge我$867.39 (都包括lab费),compressor relief valve charge我$297.46, 2.
1 gallon expansion tank $377.55,install gas sediment trap at water heater to
bring up to code $278。总共要2000刀了。跟买个新的差不多了吧?
我觉得只换主管道的Pressure Reducing Valve和热水器上的compressor relief valve
就可以了吧。我看了一下... 阅读全帖
x**l
发帖数: 2337
5
我的Home Buyer Warranty Protection Plans包括如下与PLUMBING有关的条款:
Water Heaters (Up to 70 gal. unlimited units)
Toilet Removal, Reattachment
Tankless Water Heaters
Hydrojetting
Plumbing Pipe Leaks
Drain Line Stoppages
Toilets
Whirlpool Motor & Pump Assembly
Shower & Diverter Valves
Faucets, Shower Heads & Arms
Failures due to Sediment in Water Heater
Pressure Regulators
Interior Hose Bibs
其中的倒数第二项 Pressure Regulators是指的公共输水管道进入我家院子的那个减压
阀(在房子外面)还是热水器上的那个减压阀呢?前两天有人说这种由卖房子一方给买
房者买的Home Warranty不包括房子外面的东西。... 阅读全帖
z**********5
发帖数: 63
6
来自主题: Living版 - 后院找平问题
兄弟,这个属于Grading。需要Sediment control permit吧。
f******I
发帖数: 769
7
来自主题: Medicine版 - 尿液里发现微量血细胞
casts are active sediment in the urine that often indicating certain
diseases such as glomerulonephritis,
the list you gave did not have any microscopic analysis such as showing if
there is/how many epithelial cells, red cells, white cells and such, but
dose appear that there is no protein which is always a good thing,
if there is no casts and no proteins then it's pretty bland,
it's cloudy and amber colored then it might be pretty concentrated when you
gave the sample,
make sure you drink plent
g***r
发帖数: 285
8
来自主题: Medicine版 - ###此帖已应当事人要求删除###

not enough information provided,
what about white cells or red cells in the urine? any cast? it's always not
a good sign to have protein in urine, maybe the urine sample was a bit
concentrated and maybe a little urinary tract infection, thus would be
important to know if there is any white cells in there or any bacterial
count,
if there is any significant red cells and active sediment such as any cell
cast then you'd worry about glomerular disease,
l*****O
发帖数: 402
9
I second that.
Elevated blood pressure with an elevated sedimentation rate is distinctly
uncommon in children and very helpful in suggesting Takayasu disease as a
possible cause.
s******7
发帖数: 350
10
来自主题: Medicine版 - 紧急求助:3岁半小女孩病危
你可以查一下 Fever of unknown origin
http://en.wikipedia.org/wiki/Fever_of_unknown_origin
and:
http://www.merckmanuals.com/home/childrens_health_issues/sympto
For chronic fever, tests are often done. If doctors suspect a particular
disorder, tests for that disorder are done. If the cause is unclear,
screening tests are done. Screening tests include a complete blood cell
count, urinalysis and culture, and blood tests to check for inflammation.
Tests for inflammation include the erythrocyte sedimentatio... 阅读全帖
s******7
发帖数: 350
11
来自主题: Medicine版 - 紧急求助:3岁半小女孩病危
你可以查一下 Fever of unknown origin
http://en.wikipedia.org/wiki/Fever_of_unknown_origin
and:
http://www.merckmanuals.com/home/childrens_health_issues/sympto
For chronic fever, tests are often done. If doctors suspect a particular
disorder, tests for that disorder are done. If the cause is unclear,
screening tests are done. Screening tests include a complete blood cell
count, urinalysis and culture, and blood tests to check for inflammation.
Tests for inflammation include the erythrocyte sedimentatio... 阅读全帖
r*********l
发帖数: 170
12
我是30岁女性。去年10月开始胃酸多,胃疼,就吃止酸剂。后来症状有所缓解。
从12月底开始右腿右屁股开始有伴随疼痛。
现在情况有所变化而且更加严重,疼痛区域包括右下腹(肋骨以下,肚脐往右),右后
背(肋骨以下,脊椎往右),还有右腿,右屁股。饭后经常可以缓解,但是过一两个小
时又开始疼痛。而且听见肚子里咕咕的声音。疼痛高峰期通常半小时自行缓解。但是非
高峰期也不是很舒服。
整个情况是好两天,坏两天。断断续续发生。没有大便异常。进食食量也很好。
看了家庭医生和消化专科医生,做了很多检查。都正常。医生很奇怪我的症状,说腹痛
和腿疼不应该同时发生,可是我就是同时发生,同时缓解。
我做的检查包括:胃镜,血检(CBC with differential/platelet comp.metabolic
panel, TSH, sedimentation rate-westergren, c-reactive protein, quant. ),腹
部B超,妇科B超,大小便。还有lumber compelte x ray。
我应该继续看消化科医生要求更多的检查吗?应该查什么呢?
我看网上经常说到慢性阑... 阅读全帖
c*******u
发帖数: 12899
13
来自主题: NextGeneration版 - [合集] 求助--1岁宝宝查出癌症晚期
☆─────────────────────────────────────☆
Pica (樱桃小番茄) 于 (Thu Mar 17 20:55:27 2011, 美东) 提到:
我的朋友的小宝宝,刚过1岁生日不久,发现手肘处有异常突起,经MRI和手术后活检诊
断为soft tissue sarcoma, 现在肿
瘤已经切除,但是医生建议立即住院化疗,估计需1年时间,成功率65%。想问问大家
,有没有知名小儿癌症专家或者医院
的情况可以提供给他们,他们的保险是Kaiser,据说不容易referral, 也请有这方面经
验的妈妈们帮帮忙,先多多谢过了!
☆─────────────────────────────────────☆
expression1 (^_^*) 于 (Thu Mar 17 20:56:41 2011, 美东) 提到:
Bless
☆─────────────────────────────────────☆
pepper1982 (pepper1982) 于 (Thu Mar 17 20:57:30 2011, 美东) 提到:
ble... 阅读全帖
c******y
发帖数: 266
14
儿子快5岁了,上周四忽然发烧,没有其他症状,温度在102-104之间,基本都是吃了退
烧药之后半小时温度就降低,下午比早上烧的厉害。第四天的时候烧就退了,精神不是
特别好,但是还是去踢足球了。
第四天晚上出了很多汗,第五天早上发现脖子上起了很多red rash, 身上和四肢都有,
很痒,(脖子上的类似玫瑰疹,不痒,身上的像hives 很痒)。 第五天下午去看医生
,体温正常,眼睛稍微红,下嘴唇有些红,舌头很白有点点。医生先做了strep test
结果正常。我问医生是不是川崎病,医生回答50%可能性,于是去抽完血就回家了。第6
天早上起来后儿子脸上的rash变多了,其他没有特别明显的改变,我仔细观察的手和脚
,发现脚趾间和脚心那里稍微有点脱皮。
我的一个很大的疑虑是孩子现在的体温在97-99之间,为什么我总觉得他的额头和身上
比平时要热一些呢?他现在一睡觉就出好多汗,是虚弱吗?
刚收到了医生的信息,他说I see that L has a normal sedimentation rate, this
again is very reassuring we are not dealin... 阅读全帖
w*******d
发帖数: 396
15
来自主题: PennySaver版 - 常年用一种油好不好?
http://www.webmd.com/food-recipes/features/olive-oil-health-ben
Light: an oil that has been filtered to remove much of the sediment. ("Light
," in this case, has nothing to do with fat or calories. It only refers to
color.)
x*y
发帖数: 32
16
来自主题: Postdoc版 - 招聘Postdoc & Research Scientists
Postdoctoral Fellowships
Postdoctoral positions are available to explore metabolic diversity
among bacteria that degrade natural and synthetic organic compounds. The
emphasis is on discovery of novel enzymes and catabolic pathways using
microbial physiology, genomics, and molecular biology. A second position
will emphasize biodegradation kinetics and mechanisms in natural soils
and sediments. The laboratory is well equipped with analytical
instruments and all the facilities needed for cell culti... 阅读全帖
x*******6
发帖数: 994
17
来自主题: Postdoc版 - 请教:碳黑dispersion
现在在做碳黑分散在水或有机溶剂中,准备先对碳黑作酸处理,然后加分散剂, 考虑
用non-ionic surfactant, Triton X100. 当分散剂加到一定剂量, 如 2 wt% 以上时
(比如2 wt%, 2.5 wt% 和3.0 wt%),suspension 放很长时间不再sediment. 但不知
如何表征2 wt%, 2.5 wt% 和3.0 wt%之间的差别, 也可能溶液太黑,分辨不出具体差
别。另一问题是,怎样分析上述溶液的溶解度, 也就是分析碳黑在溶液中可分散的最
大量。 本人没有表面化学,有机和高分子的背景,希望大牛给点解释,并推荐分析方
法或文献。 多谢。

发帖数: 1
18
来自主题: Returnee版 - 中国骨干人才正在流失海外
12月27日 为什么我要替中国辩护
我要替中国辩护,并不是因为我是一个中国人,而是因为我知道中国就和这世界上绝大
数的国家一样,虽然有很多丑陋的现象,但是他们是受害者。就
象这个犯罪集团里很多的人一样,他们来自各种种族,他们可能充当了工具,但他们不
是制造这一切,谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂,他们只是打工者,他们只是按照各种雇主提供的配方来生产,他们并不知道
他们会产生怎样的后果。或者这些工人知道后果,但他们只是奴隶,他们又如何去改变
这一切? 所以,当我的调查不断往前推进的时候,不可避免地会涉及各国的企业,但
这并不表明是针对这个国家或这个国家的人民,而是针对一种社会现实和丑陋现象。就
拿菲律宾来说,菲律宾是一个犯罪猖獗的国家,有很多犯罪分子,但是菲律宾人民却是
这个集团的受害者,他们/她们被绑架,沦为了牺牲品,人体实验对象。一个日本人,
强奸上千名菲律宾女孩,却没有受到惩罚。以前我也提到过,有20个国家的名单,这20
个国家的人民其实都是受害者。现在他们把矛头对准中国,或许仅仅是因为我揭示了他
们图害世界人民的内幕,而我是一个中国人的缘... 阅读全帖

发帖数: 1
19
年初开始来了一波恐慌,不管什么理论解释,恐慌的源头都没变啊。但是不管看
sediment,fear index, VIX还是期指走势,都显示这一波恐慌又这么莫名其妙的结束
了。。。
市场总是很难有效解读啊....
r*****e
发帖数: 7853
20
现在谈结束为时过早。涨的时候想跌,跌的时候想涨
[在 seatosea (seatosea) 的大作中提到:]
:年初开始来了一波恐慌,不管什么理论解释,恐慌的源头都没变啊。但是不管看
:sediment,fear index, VIX还是期指走势,都显示这一波恐慌又这么莫名其妙的结束
:...........
l*******y
发帖数: 287
21
这是我律师给我的一份模板,希望对你有帮助。(我攒人品,140快点批准!!)
Dr. XXXXX’s Personal Statement
Dear Immigration Officer,
It is my great pleasure and strongest intention to continue my research work
in the United States. I am currently a postdoctoral research associate at
the XXXXX Center (XXXXX Center), XXXXX University. I have been working here
since 2009, and my research mainly focuses on environmental pollution and
health. I expect to continue working in this area with my full capacity.
My ultimate goal is to provide ... 阅读全帖
T**7
发帖数: 264
22
请发给我:
你的
(1)简短的PUBLICATION LIST 不超过5篇文章
(2)你的名字
(3)学位
(4)EMAIL地址
Entitled "Asymptomatic bacteriuria increases the risk of edematous attacks
in hereditary angioedema due to C1-inhibitor deficiency"
Article Type: Original Article
Background: Although urinary tract infections are considered among the most
common infectious disorders in humans, these usually follow an uncomplicated
course. Various infections may have a role in inducing HAE attacks. Further
, danazol treatment has been associated ... 阅读全帖
n******7
发帖数: 12463
23
扯谈也靠谱点好不?忍不住问:不装x会死吗?
第一条就是瞎扯
1. 撤人非常及时,尽管辐射释放量远大于三里岛,但周边居民受的的辐射却比三里岛
少得多。
http://en.wikipedia.org/wiki/Three_Mile_Island_accident#Radioac
Within hours of the accident the United States Environmental Protection
Agency (EPA) began daily sampling of the environment at the three stations
closest to the plant. By April 1, continuous monitoring at 11 stations was
established and was expanded to 31 stations two days later. An inter-agency
analysis concluded that the accident did not raise radioactivit... 阅读全帖
W***n
发帖数: 11530
24
Thousands of mines with toxic water lie under the West
Associated Press By NICHOLAS RICCARDI
1 hour ago

A warning sign from the city is displayed in front of the Animas River as
orange sludge from a mine spill upstream flows past Berg Park in Farmington,
N.M., Saturday, Aug. 8, 2015. About 1 million gallons of wastewater from
Colorado's Gold King Mine began spilling into the Animas River on
Wednesday when a cleanup crew supervised by the Environmental Protection
Agency accidentally breached ... 阅读全帖
A*6
发帖数: 212
25
来自主题: Kansas版 - [侃美食]--我的dream tree
Watermelon-Grape Concentrate Wine (makes 1 gallon)
6-8 lb watermelon
12 oz white grape concentrate
water to make up 1 gallon
juice and zest of 2 lemons
2-1/2 cups granulated sugar
1 crushed Campden tablet
1 tsp yeast nutrient
Champagne or Sauterne wine yeast
Cut the rind off of melon, cut melon into one-inch cubes, remove loose seeds
, and put melon and any free juice in primary. Thinly grate the yellow off t
wo lemons, juice the lemons, and add the juice and zest (gratings) to primar
y. Add gra... 阅读全帖
w**z
发帖数: 637
26
来自主题: NewJersey版 - 求推荐净水器
这个coutertop的不错 用了很多年了 搬家还可以带走
用了之后烧水 基本没有水垢
http://www.waterfilters.net/QMP603-Two-Stage-Countertop-Filter-
需要两种filter:
CBR2-10R - Pentek CBR2-10R Lead Reduction Filter (9-3/4" x 2-7/8")
P5 - Pentek P5 Sediment Filter (9-3/4" x 2-3/8")
j****y
发帖数: 1714
27
The following article says,
" there was no government plan adequate to respond to a disaster at the
Indian Point nuclear reactor, just 80 km from New York City. "
http://search.japantimes.co.jp/cgi-bin/fl20040523x2.html
Sunday, May 23, 2004
Japan's deadly game of nuclear roulette
By LEUREN MORET
Special to The Japan Times
Of all the places in all the world where no one in their right mind
would build scores of nuclear power plants, Japan would be pretty near
the top of the list.
An aerial view o... 阅读全帖
a*o
发帖数: 25262
28
来自主题: NewYork版 - 曼哈顿高楼防震
以前就听说过纽约的地震迟到了。纽约平均每一百年一大震,上一次 5 级震是 1884
年。震中在 Rockaways. 几个月前的报道又露面了:
3/17/11 By Rolando Pujol
New York seen as overdue for significant earthquake
_gen/derivatives/display_576/image.jpg
It’s seen as something of a New York City bragging right: We don’t have to
worry about earthquakes.
While we shouldn’t be shaking in our boots, we also must avoid sticking our
heads in the sand when it comes to seismic risks, experts advise. In the
aftermath of the Japan earthquake, scientists caution that New ... 阅读全帖
b******e
发帖数: 445
29
住进去6年多了都每搞过, 估计里面sediment一堆啊。
自己又不是handyman. 请人的话大概多少钱? 谢谢!
A****t
发帖数: 397
30
我以前用Whirlpool的,一年就坏了。COSTCO的WATTS更好,多了一个PRE-SEDIMENT
FILTER。FILTER 也比Whirlpool的便宜。
COSTCO 经常有 $30 Discount。
l***i
发帖数: 1943
31
【 以下文字转载自 Living 讨论区 】
发信人: liazi (liazi), 信区: Living
标 题: inspection report...急急急
发信站: BBS 未名空间站 (Fri Oct 21 23:00:53 2011, 美东)
新手买房子,seller发来了个他们做的inspection report,
看起来有些defect,急着要下offer了,
能请版上的牛人们帮忙分析一下那些是比较重要的问题么?
包子答谢!
defects:
1. Grading & Drainage
Comments: Observed soil / mulch too high in flower beds at rear of dwelling &
detached garage. Recommend repairs, establish proper drainage, and top soil /
mulch should be at least 2” below the siding or brick line and sloped away
from the fou... 阅读全帖
y**s
发帖数: 6809
32
来自主题: Fashion版 - 求推荐个exfoliater
lol don't be scared.. it's actually finer than other brand exfoliators i
used (sisley, caudalie, etc). If the others are sands this one is silt..
clarisonic does exfoliate, but in a very mild way. if you lift the brush
head you can see dead skin sediment...a little disgusting though..
i stopped using exfoliators after i started on clarisonic. But again it
depends on your skin condition and your needs. I'm rather conservative in
that aspect, don't want to stress my skin too much.
t****t
发帖数: 540
33
以下是我给biotherm网站上的留言。陈年往事,给jm们提个醒。
"I bought non stop moisture and received this product in March, 2009. When I
wanted to use it, I found it had nine white spots of sediments. When I
called the company, I was told that it already passed the expiration date,
which was Dec. 2010. I have NEVER thought that a skin care product I bought
would only last for one and 3/4 years. Most products from other brands can
last for three years.
I need to warn all the customer who want to buy biotherm products onli... 阅读全帖
w***r
发帖数: 7173
34
来自主题: gardening版 - 接屋顶水浇菜的注意了
觉得第一场久旱之后的雨水最好不要收,雨水一流估计能把房顶的一些化学物质冲走。
之后的雨水应该还行吧,特别是rain barrel 那么大, 象个sedimentation basin 一样
,估计也能沉积点bad stuff.
m*******u
发帖数: 57
35
来自主题: PhotoGear版 - 摄影师还是很受欢迎的
LZ是学sediment process的?
r******k
发帖数: 97
36
来自主题: WaterWorld版 - 澳洲科学家发现黄金树
Gold growing on trees? Scientists find small deposits in gumleaves
Australian geochemists publish paper showing how trees act 'as a hydraulic
pump … drawing up water containing the gold'
Scientists from Australia’s national science agency, the Commonwealth
Scientific and Industrial Research Organisation (CSIRO), have proved that
the leaves of certain eucalyptus trees contain minute amounts of the
precious metal that have been naturally absorbed.
Eucalypts in the Kalgoorlie region of Western Aust... 阅读全帖
O******e
发帖数: 734
37
I once worked on a project where we needed to translate the word
"settle/settlement" into other languages. The context in our case was
about the precipitation of sediments in a decanter. "Precipitation"
would have been a better word in English, but common practice is to
use "settle[ment]" instead. (Same use as in "The dust settled on the
ground.")
We hired professional translators to do the job for us. When we got
the German translations back, I found some errors with some words, so
I starte
H********g
发帖数: 43926
38
来自主题: Joke版 - CO2
前几天在netflix上看了个TED,里面说今日地球上的铁矿,就是因为远古蓝细菌的作用
,把原本缺氧的水-大气圈搞成了氧化性的,结果把海里的二价铁氧化成三价铁沉淀了。
wikipedia上这么说:
Banded iron formation
Some of the oldest known rock formations, formed over 3,700 million years
ago, include banded iron layers.[2] Banded layers rich in iron were a common
feature in sediments for much of the Earth's early history but are now rare
.[citation needed] Phanerozoic ironstones generally have a different genesis.
The conventional concept is that the banded iron layers were formed in sea... 阅读全帖
c******e
发帖数: 545
39
宣传的再牛逼的活性炭的过滤器都是渣,家用还是得用反渗
比如这个:
http://www.amazon.com/gp/product/B003XELTTG?psc=1&redirect=true
再搞个TDS meter就齐活了:
https://www.amazon.com/gp/css/summary/edit.html/ref=dp_iou_view_this_order?
ie=UTF8&orderID=112-3007427-4488234
换芯比较频繁的就是前级的sediment filter,便宜。RO膜可以管很久
p********f
发帖数: 5148
40
来自主题: pets版 - 给陪陪求祝福
结石是照了X光诊断的。照片resize后不知清晰程度如何。
检测结果如下:
color: yellow
clarity: cloudy
specific gravity: 1.012
glucose: 2+ Flag H
bilirubin: nagative
ketones: negative
blood: 3+ Flag H
PH: 6.5
Protein: 3+ (300-500 mg/dL) Protein test is performed and confirmed by the
sulfosalicylic acid test.
WBC:0-2
RBC:2-5
Bacteria: blank HPF moderate (9-40/HPF)
EPI cell: 1+ (1-2)
mucus: none seen
casts: none seen
crystals: none seen
other: non-crystalline debris present
urobilinogen: normal
UPC if i... 阅读全帖
t******e
发帖数: 1646
41
谢谢大家关心! 已经回来了。 检查也没有结石也不是感染,确诊Hematuria,疑似
Feline Urological Syndrone。开了一小瓶Buprenex止痛镇静,一小瓶Prazosin舒张尿
路肌肉。
解释了引起FLUTD的各种原因,饮食、环境给了一些建议。让接回家密切观察。。。也
不知道晚上这胶囊药丸要怎么喂给这掰不开嘴的夺猫。。。
附一张X-ray,说是The bladder had an increased opacity which may represent a
large amount of urine sediment. 看来以后还是改喝纯净水得了,还要想办法看看怎
么让这倔强挑食猫改吃罐头。。
s*****d
发帖数: 2451
42
UA就是尿检了。但是我不知道他的UA包不包括sedimentation的。他说的系统的UA也有
可能是要送到外面的实验室去confirm一下。
proteinuria一般要结合sp gravity,这个最重要。
还有是不是有感染,是不是有UTI这些。
我估计你的vet比较担心的是有lyme positive的狗,如果伴随proteinuria的话,有可
能是early lyme nephropathy,就是说lyme发展到肾脏里了。所以他想进一步检查一下
,或者排除或者要早治疗。
我觉得你可以给他电话问问,他想做什么尿检,是不是要送到外面的lab做的那种。然
后也问问他担心的是什么。
当然,你可以要具体报告,也可以要求他们复印或者扫描一份给你。你的狗,你付钱了
,这是你的权利。
h***i
发帖数: 89031
43

It is confirmed by climatology research.
The last ice age caused continental ice shelf over a mile in depth
up to 35 - 40 degree North latitude. It was every where.
The ice shelf retreated from the front line sice 11,0000 years ago,
1,0000 years after it reached its peak position. During the warming
up period, there were 200 to 500 years fluctuation cycle.
Those can be traced from the O18 data from ocean sediment and pole
region ice core.
Around 4800-4500 years ago, the northern hemisphere aver
e*****n
发帖数: 3129
44
在wikipedia上看化石的介绍
有一段Rarity of fossils
中文里却没有
俺试着译了一下
俺是外行中的外行
看着这段还简单,试试
所以出错是应该的
请不吝指教
发现俺错了还让俺错到底那是害俺
谢谢
俺借助了google translate
还有最后一段的pattern of stasis怎么翻?啥意思?
http://en.wikipedia.org/wiki/Fossil#Rarity_of_fossils
Fossilization is an exceptionally rare occurrence, because most components o
f formerly-living things tend to decompose relatively quickly following deat
h. In order for an organism to be fossilized, the remains normally need to b
e covered by sediment as soon as possible. However th
n********n
发帖数: 8336
45
The existence of God using logical absolutes
This is an attempt to demonstrate the existence of God using logical
absolutes. The oversimplified argument, which is expanded in outline form
below, goes as follows: Logical absolutes exist. Logical absolutes are
conceptual by nature--are not dependent on space, time, physical properties,
or human nature. They are not the product of the physical universe (space,
time, matter) because if the physical universe were to disappear, logical
absolutes w... 阅读全帖
u****e
发帖数: 118
46
来自主题: ChineseClassics版 - 求助各位:有关中国文化
A reconstructed hut at the ancient Chinese settlement of Hemdu may resemble
the elevated structures used by the first known rice farmers some 7,700
years ago, scientists say.
A new study of artifacts and sediments found at Kuahuqiao, China, show that
Stone Age farmers there used fire and even flood control to develop the
earliest rice paddies ever found.
Photograph courtesy Y.Q. Zong
http://news.nationalgeographic.com/news/bigphotos/81359870.html
c****t
发帖数: 19049
47
来自主题: SciFiction版 - Earth Microbes Pave Way for Alien Life
The region beneath Earth's surface may be crawling with diverse organisms,
and now researchers reveal the lives of just one group of bizarre beasties:
methane-spewing microbes that hide out in the cracks of hot undersea
volcanoes.
Called high-temperature methanogens, these microbes rely on the hydrogen and
carbon dioxide in their superheated deep-sea vents for growth, excreting
waste products like methane.
The possibility of past or present life on other worlds such as Mars, where
the rover Curi... 阅读全帖
f****a
发帖数: 351
48
来自主题: TrustInJesus版 - 创世纪的顺序真的是符合科学的吗?
http://www.scotese.com/climate.htm
http://www.beacon.org/client/pdfs/8577_chron.pdf
Late Proterozoic ice ages
The Neoproterozoic era (1,000 to 542 million years ago), provides evidence
of at least two and possibly more major glaciations. The more recent of
these ice ages, encompassing the Marinoan & Varangian glacial maxima (about
560 to 650 million years ago), has been proposed as a snowball Earth event
with continuous sea ice reaching nearly to the equator. This is
significantly more severe th... 阅读全帖
t*******d
发帖数: 2570
49
关于进化是不是个事实。
From National Academies
http://www.nas.edu/evolution/TheoryOrFact.html
It is both. But that answer requires looking more deeply at the meanings of
the words "theory" and "fact."
In everyday usage, "theory" often refers to a hunch or a speculation. When
people say, "I have a theory about why that happened," they are often
drawing a conclusion based on fragmentary or inconclusive evidence.
The formal scientific definition of theory is quite different from the
everyday meaning of the wo... 阅读全帖
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