Saturday, March 31, 2007

Casual Fridays: Who turned that thermostat down? Probably a man.

Category: Casual Fridays
Posted on: March 30, 2007 2:53 PM, by Dave मुंगेर

This week's Casual Friday study attempted to get to the bottom of the age-old thermostat battle. In every office, classroom, and home, it seems, no one can agree on the proper temperature to set the thermostat. While one person is shivering like a wet poodle, their office-mate is sweating like fountain. I've talked with a few of my (now over-40) friends about the issue, and several of us agree that we seem to be getting more sensitive to temperature as we age.

A much more common stereotype, however, is that men tend to run hot while women run cold. When my family watches TV together, Jim and I are often in shorts and T-shirts while Greta and Nora huddle together under an afghan. We asked 333 readers how often they felt cold indoors when the room was a "normal" temperature, and the responses confirmed the stereotype:

hotcold1.gif

Nearly half of all women responding said they felt cold "daily," compared to just 13 percent of men. Most men indicated they felt cold only once a month or less, whereas over 75 percent of women felt cold more than once a week. All these differences are statistically significant.

These two graphs show how that disparity leads to conflict at the thermostat:

hotcold2.gif

Both male and female readers were asked what their thermostats were set at during the day in winter, and what temperature they would set them at if they didn't have to compromise with others. Many men clearly would like the thermostats lower than the actual settings, and many women would like it warmer. The real battleground is at the edges: while 22 percent of men want the thermostat set between 60 and 65 degrees, just 7 percent of women do. Meanwhile, 35 percent of women prefer a thermostat setting of 73 degrees or above, compared to just 15.8 percent of men. Again, all these differences are statistically significant.

There may have been some sampling bias in our results: normally the ratio of male-female response for Casual Fridays is about 60:40; this week it was 50:50 -- clearly this is an issue that resonates more with women than our typical Casual Friday fare.

But what about our initial question? Do we get more sensitive to temperature as we age? And are there any other factors in temperature sensitivity?

We asked respondents to indicate their age, weight status (over or underweight), and amount of exercise. I calculated correlations for each of these factors, and these summarized in the graph below:

hotcold3.gif

Asterisks indicate significant correlations. As expected, women are disproportionately unlikely to be hot and likely to be cold. Overweight status also matches stereotype, with overweight people significantly more likely to be hot and unlikely to be cold (though it should be noted that an r of .11 , though significant, is quite small). Amount of exercise showed no significant relationship to temperature sensitivity, but there was a significant small correlation between age and feeling hot. The anecdotal experience of me and my friends feeling colder as we get older is not borne out by our results here.

Who is most likely to want the thermostat turned down? An overweight, old man. Who will want it turned up? A thin, young woman.

We collected quite a bit more data than I've reported here; if anyone is interested in using it for further analysis, let me know and I'll send you the files.

88 Largest Objects in the Solar System

Thursday, March 29, 2007

|关于作业中的库仑|


库仑是电量的单位,符号为C。它是为纪念物理学家库仑而命名的。若导线中载有1安培的稳恒电流,则在1秒内通过导线横截面积的电量为1库仑。库仑不是国际标准单位,而是国际标准导出单位。1库仑=1安培·秒。一个电子所带负电荷量e=1.6021892×10-19库仑,也就是说1库仑相当于6.24146×1018个电子所带的电荷总量。
呃,讲不出什么道理,因为我们没学过,死记就好了............

Wednesday, March 28, 2007

|回家路上|

今天放学后,和大家走在一起.
在楼梯上看到老师在前面,在校门口才追上......
楠,萧,我:老师好!
A: 楠, 萧 !
我们慢下来,他们说:En.
A:你们想不想进超长班?
-想啊!
此时耳朵向脑进谏:加快腿的运动
脑:批准!
So 后来的几句没有听清.(大概是什么,考到115名之前怎么怎么的,要努力之类的........)

但脸上的肌肉却抽起筋来,扭曲的不成样子........
瞥到前面过来的人奇怪的眼光.
我也不知道我的表情是什么.
想起这几天还在搞asp.真是浪费时间.



PostScript:今天早上迟到了.没有值日.下午放学也很马虎......

Monday, March 26, 2007

|HaHa|

Gmail的社区永远是那么棒।
不过对于新的发现不是源于Google名下,觉得很是失望..........
这是网友的留言
(前面是讨论为什么上不了blogspot)撞墙了
用"http://www.pkblogs.com/你的博客二级域名"访问(例如我的http://www.pkblogs.com/wei-zhang)
我想其中大概运用了域名解析之类的转向问题.......
不过个人觉得可能留言后在转到*.blogspot.com的时候会出问题........
哦对了忘记说pkblogs是外国佬出的东西,还真的挺体谅中国用户的,在此不胜感激.
网站上原文是这样说的
Is your blog blocked in India, Pakistan, Iran or China?

If Yes then you can still access your blog anytime using pkblogs free Blog Gateway.

才发现不只中国进行此类的封锁, India, Pakistan, Iran or China都被封了.
无限痛苦中.........................
不过能恢复访问很不错,虽然pk这两个字母的组合很不喜欢.希望不要被班里的同学误解我在这个上面注册了.........................
在这里澄清,通过wei-zhang.blogspot.comhttp://www.pkblogs.com/wei-zhang访问的是同一个网站!!
-------------------------------
刚发现原来在pkblogs下我的Google Ads显示不了的.........
算啦,可能有人看得会更舒服॥
my money..................55555555555~

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又有热心的人提供了另一个网址www.inblogs.net/wei-zhang(可以显示广告!)