The conceit of this book is, obviously, that it's addressed to whoever would win the Obama-McCain race: here are the bits of physics you need to understand if you're going to make the right decisions on terrorism, energy, nukes (both weapons and reactors), space and global warming. There's plenty of good stuff here as well as lots of fascinating facts that I'm sure I'll find myself tossing oh-so-casually into dinner-party conversations. The text is extremely readable, bouncing along at an exhilarating pace. But there are also some silly mistakes:
In the Manhattan Project, the scientists initially estimated that the amount needed for a critical mass was about 440 pounds. [. . .:] With a tamper, instead of leaking out, the neutrons are reflected back in, so the critical mass needed for an explosion dropped by about a factor four, down to only 33 pounds. (p129)
I've tried and I've tried and I've tried to make sense of that "factor of four" calculation, but I still can't get no satisfaction. The "440 pounds" is clearly a euphemism for 200kg, and I assume "33 pounds" is, in plain English, 15kg . . . but even looking at these somewhat easier-to-work-with numbers, hoping for some sort of four-related relationship between them, I can't imagine what he was talking about. Similarly here:
In 1974, the average refrigerator size in the United States had a volume of 18 cubic feet, and the energy it used was 1800 kilowatt-hours per year. That's 130 kilowatt-hours for each cubic foot. (p315)
If I divide 1800 by 18, I get 100, not 130. I've checked my calculation every which way, and I still think I'm right on this.
I have other concerns. In the long chapter on global warming, Muller adopts the position of being, not a climate change denier, but a denier of the need for draconian action . . . and he claims to produce the physics to support this. He obviously has a beef about Al Gore and the movie An Inconvenient Truth, because he loses no opportunity to carp at them, even in instances where quite clearly Gore's "error" was that the science he presented, while perfectly correct as of 2004, has since been amended. Perhaps Gore once farted in front of Muller's wife, or something. Even so, I was prepared to be educated on the subject, but then . . . well, what's this?
On page 283 we have a couple of diagrams credited to "Pielke & Landsea"? On p294 there's an approving mention of a correction to the climatologists' physics from Steve McIntyre and Ross McKitrick? The diagrams seem plausible and the correction to the physics may be fine for all I know, but nowhere is there a mention of the fact that Pielke, McIntyre and McKitrick are extremely controversial figures in the climate debate, being champions of the AGW-denialist movement. I for one would trust nothing emanating from any of these three until I had it confirmed in triplicate by independent authorities, and even then I'd be dubious. Yet Muller, who must have known that to much of his audience the names will mean nothing, fails to alert his readers to the fact that the arguments being produced in general on AGW by Pielke, McIntyre and McKitrick (and, again for all I know, Landsea) are, to euphemize, not universally accepted.
Similarly, on pp104-105 Muller discusses the estimated death toll from long-term cancers in the wake of the 1986 Chernobyl disaster, and tells us that the IAEA/UN best estimate for this number is 4000. I was surprised the figure was so low, since I was sure I'd heard of higher ones, but who was I to argue with the IAEA/UN? It was only by chance, in casual e-conversation with a friend a couple of days later, that I discovered there have been several estimates of this death toll, and the IAEA/UN one is controversial. Many of the other estimates, quick research revealed, have reliability problems of their own -- I mean, I love Greenpeace and have given them money, but they're an advocacy group and everyone knows you take with a pinch of salt the statistics produced by advocacy groups -- and it's quite possible the IAEA/UN estimate may be the best; but, for the sake of honesty, Muller should have indicated the existence of these other, far more pessimistic estimates.
The laffaloud irony is that, elsewhere, he's really quite strong about people who cherry-pick their information . . .
All in all, then, having found a few instances where I did not feel Muller was dealing fairly with his readers, I became uncertain as to how much of the rest of his text I could trust. And that's a pity, because I very much enjoyed the actual process of reading the book.