|
h**********c
发帖数: 4120 | 2 hehe, this is not my area.
sub 20 celcius is not good for jogging. |
|
X****i
发帖数: 1877 | 3
Metric 也很脑残啊。
一米的距离很不实用，太长。
Celcius的温度也很差，1度的精度差。
Fahrenheit的度数好用多了。变化大。
中国应该独立发展一个实用的独立度量系统。
是十进位，但精度也适合日常生活的实际需要。
选择比较实际的大小标准，可以参考英制。
这样，中制被全球采纳，只是早晚的事。 |
|
m*******p
发帖数: 1978 | 4 normal, and 16 celcius is VERY cold inside. |
|
H*M
发帖数: 117 | 5 想找个性价比高的，易携带的，能抗0 celcius最好，谢啦
还有想请问下去实体店如walmart买好，还是网上订购让他们寄过来好（amazon,
walmart还是其他
网上店家？） |
|
m*****9
发帖数: 2194 | 6 Before I came to USA in 2008, I worked and studied in Sweden for 2.5 years.
In my opnion, Sweden has more modern technology which is applied to daily
life than that of USA, it also has cleaner environment and better medical
welfare while striking gap between the rich and the poor is much smaller
than USA. But after I lived in USA for 3 years, I still like working and
studying here due to the reason that more opportunities could be found in
this land. The other reason why I choose USA is the clim... 阅读全帖 |
|
m*****9
发帖数: 2194 | 7 Before I came to USA in 2008, I worked and studied in Sweden for 2.5 years.
In my opnion, Sweden has more modern technology which is applied to daily
life than that of USA, it also has cleaner environment and better medical
welfare while striking gap between the rich and the poor is much smaller
than USA. But after I lived in USA for 3 years, I still like working and
studying here due to the reason that more opportunities could be found in
this land. The other reason why I choose USA is the clim... 阅读全帖 |
|
g*****p
发帖数: 790 | 8 看一个土生土长的中国人如何在美国的记者年会上，用幽默征服了全场美国人，并当面
调侃美国副总统约瑟夫·拜登(Joseph Robinette "Joe" Biden, Jr)，而他用这种幽默
也带给我们思考，中国和美国到底差在哪里?中国又将怎么进步?!
My name is Joe Wong. But to most people, I am known as “Who?” which is
actually my mother’s maiden name, and the answer to my credit card security
question.
我叫黄西，但对于大多数人来说，我叫“Who”（HU），这实际上是我妈妈的娘家姓，
也是我信用卡密保问题的答案。
（开场先是自嘲下自己默默无闻不为所知，然后利用中英文谐音，再联系到信用卡密码
保护，因为网上注册时选择用于取回密码的验证问题里，最常见的就是妈妈的姓氏是什
么。）
Joking aside, I want to reassure you that I am invited here tonight.
抛开玩笑，我想重申今... 阅读全帖 |
|
c**i
发帖数: 6973 | 9 Eureka!
I finally find out what your tree--and flowers--is.
(1) I consider many possibilities.
One was the original posting was a hoax. I live in Boston, Massachusetts. On
the assumption that late April in Boston is about late October in Sydney,
Australia, I found it hard to believe that trees are so green in Sydney, let
alone flowers in bloom. (In boston, leaves change color and started falling
in mass about mid-October.)
(a) Sydney
http://en.wikipedia.org/wiki/Sydney
Section 2.3 Climate indica... 阅读全帖 |
|
r******y
发帖数: 21907 | 10 but u said u already turned on heating at home but it is 20 celcius outside?
@@
that's why i dont like to be inside b/c the T is always low no matter in
summer or winter/ ): |
|
r****o
发帖数: 105 | 11
blot stripping buffer:
100mM beta-Mecaptoethanol
2% SDS
625mM Tris.Hcl pH6.8
To make 50 ml stripping buffer:
41.5ml ddH2O
5ml 20% SDS
3.125ml 1M Tris.HCl pH6.8
0.352ml beta-Mecaptoethanol
To use the buffer to strip the blot:
1. incubate the blot in the stripping buffer for
30 min at 70 celcius degree
2. Wash the blot with PBST five times
Note: this protocol's condition is very hars |
|
l******o
发帖数: 103 | 12 I have the following problem. I want to introduce a point mutation to my
plasmid. The plasmid is super big. So I first cut out a fragment(~4kb) with
XbaI and then ligate it to another vector. After introducing mutation with
mutagenesis kit, the sequencing result is as expected.
Next step is to put the XbaI-XbaI fragment containing the mutation back
into the original clone. After ligation and transformation with DH5alpha I
get a number of colonies (~20) but no colonies in the negative control. B... 阅读全帖 |
|
c******n
发帖数: 4965 | 13 【 以下文字转载自 BayHandy 俱乐部 】
发信人: creation (努力自由泳50m/45sec !), 信区: BayHandy
标 题: electronics | LED light
发信站: BBS 未名空间站 (Mon May 6 03:01:17 2013, 美东)
I got all the equipment for my LED DIY.
here I put it together:
a 50W LED assembly, a big (16inch x 6 inch x 1 inch ) heat sink.
the 50W power supply to give 30v output (LED is 5 parallel lines of 10 LED
each)
it is quite bright, but I think roughly the same as a 100W equivalent CFL.
the main issue is heat, even with such a big heat sink, the temper... 阅读全帖 |
|
t*****a
发帖数: 4 | 14 So, it is like different measurement methods for the same physical phenomena?
Like Celcius and Fahrenheit for the same temperature? or maybe engineering
strain and true strain for the same deformation? If that is the case, then
deformation still = strain right? although you can have different numbers or
ways to represent the same thing. Still confused. |
|
k**a
发帖数: 1124 | 15 never mind mm, i just realized your temp is in celcius not farenheit, hehe. |
|
k*********r
发帖数: 758 | 16 what is this zero celcius? |
|
