Archive for September, 2008

Book comment on “Valley Boy”

Saturday, September 27th, 2008

The venture captalist Thomas Perkins’ autobiographic, titled as “Valley Boy: The Education of Tom Perkins” is actually a very impressive book. He also is a sailer, one of the earlier HPer, and voluteer fireman for a while. And “surprisedly” he loves his wife very much.

Before I read it, I was surprised to learn that he actually put up there lots of interesting stories and also not being very self-applauding. What went through me is that he shielded light on the development of billionaire. The funny story of his is that way before he was well established VC, he invested some money on raising cows and kept no close attention on it, one day all the sudden, he got a call, “Tom, your cows just died!”

He has one romance novel, Sex and the Single Zillionaire. At a gathering of romance novelists, he was told how to write successful romance novel: “The alpha male finally commits.”

Since women are the buyers, the description of the man must be exhaustive: his body, his eyes, his hair and his teeth and smile must be exact; but the heroine should be very vague, so that it could be any woman reading the book, in her own fantasy.

Secret told!

Label x and y axis using Hershey symbols in R

Monday, September 22nd, 2008

There are more very good tricks that I just found in R. Such as, plotting symbols for xlab can be done in this way:

x <- seq(0, 2, by=0.01) y <- sin(x*2*pi) plot(x, y, xlab="", ylab="") par(xpd=TRUE) text(floor(mean(x)), -1.5, "\\*w", vfont=c("serif","plain")) par(srt=90) text(-0.4, mean(y), "sin(\\*w)", vfont=c("serif","plain"))

R graph gallery

Wednesday, September 17th, 2008

My friend Peter pointed out a very good website for plotting graph in R. The link is here. This is the first time I realize that R can be used to generate cool graphs.
R is great.

Activated Rate Process

Thursday, September 4th, 2008

In chemical reactions, activated rate process is of interests because it happens rather frequently and broadly in physics, chemistry and biology. The activated rate process can’t be achieved by simply thermal diffusion because the energy gap between the reactant region and product region is far beyond kB T in which T is the temperature of the system.