Friday, August 25, 2006

冥王星從九大行星裏除名

在捷克召開的國際天文學會,天文學家在星期四投票決定將Pluto從九大行星裏除名,重新被定義為dawrf planet大新聞。

Pluto被除名的主要原因在於國際天文學會新採納了一個行星的定義,該行星必須是主宰該區域的主要星體,才能被定義為太陽系裏的主要行星。

有些天文學家對這個決定頗為失望,甚至認為這是語言學上的災難:

"We now have dwarf planets which are in fact not planets. I consider this a linguistic catastrophe. I think the union is going to get a lot of flak for this, in doing it in such a muddy way," said Owen Gingerich, chairman of the IAU's official planet definition committee.


不管如何,大家的地球課本內容就是要改寫了。 Link: Astronomers expel Pluto from the planetary club

Tuesday, August 22, 2006

The female brain

Way back in February I read from brain wave that there's a new book called "the Female Brain" due to be published in August. Today I found from news it's out now. This book is written by a scientist called Louann Brizendine.

In her new book, "The Female Brain," Brizendine says that women are better than men at remembering the details of emotional events because their brains are structurally and chemically different. This is not essentialist malarkey; scientists have studied living, thinking female (and male) brains with PET and MRI scans. Simply put, the hippocampus -- site of emotions and memory formation -- is larger in women, as are the brain areas for language. Men, on the other hand, have larger brain centers for action and aggression. (They also have 2 1/2 times the brain space devoted to the sexual drive, according to Brizendine.) Much of these variances start in utero, during the eighth week of pregnancy, when the then-female brain will either receive a testosterone surge or not. The screenwriters of "Click," then, weren't so far off the mark.
So there are fundamental differences in the brains between men and women. Though it's more or less a cliché. It's still interesting for me to know the scientific facts behind this well known phenomenon. However the reviewer gave this book quiet merciless critiques.
Brizendine sounds surprisingly naive elsewhere in the book as well. After speculating that, like prairie voles, some men may have a gene sequence for monogamy, Brizendine delivers this scoop: "We now know women cheat, too." One wonders how many studies Brizendine had to sift through before coming to this conclusion. And while it's fascinating to learn why women's brains get in their way of having round-the-clock sex, do we really need a neuropsychiatrist to tell us that a woman won't have sex with her partner while she's angry at him?

For a scientist, Brizendine relies heavily on anecdotes. Even though she says that child development is "inextricably both" nature and nurture, she starts Chapter 1 with a vivid story of a patient who gave her 3-year-old daughter a toy fire truck instead of a doll. One afternoon, the patient walks into her child's room to find her rocking the truck and saying, "Don't worry, little truckie, everything will be all right." Though this is hardly proof that the girl's brain was hardwired for nurturing -- we don't know what other environmental influences (television, friends, babysitters, other female figures) may have shaped her -- it serves to support Brizendine's point that "there is no unisex brain.
As far as a scientific book is concerned, we might expect more scientific information from this book. However I was talking with my publisher friends about how publishers "wrap" and promote publishing nowadays. Since lots of readers don't really "think" critically, the publishers try to draw attentions by putting some sensational anecdotes in front of readers' faces. I've been reading several popular scientific books with similar layout. I wonder whether it's because of the publisher or the writer so the book doesn't present so much scientific arguments and facts. I need to think seriously whether to spend money on that book or not now. ^^

Friday, August 18, 2006

Chinese senior ambassador to UN said: Every inch of territory is more valuable than people's life

I heard the most ridiculous interview with Chinese most senior ambassador to UN about the Chinese military expansion.
he said..

the moment when Taiwan goes independent supported by WHOEVER, china will have no choice.. will have to do "business" through whatever means we'll do business at any cost.. ... one inch of territory is more valuable than our people's life ... he said.. it's better for US to shut up.. to keep quiet.. is much much better
...it's hight time to shut up, don't tell china what's good for china.. THANK YOU VERY MUCH

It's more vivid to listen to the tone in his conversation. He did emphassize those bold words with very strong tone. I am wondering why Taiwanese news medias aren't broadcasting this kind of therrible declaration to people to make people more realistic about China.
Listen to it from here http://downloads.bbc.co.uk/rmhttp/downloadtrial/radionews/bbcradionewspod/bbcradionewspod_20060817-1800_40_pc.mp3