Hallucinations

by Oliver Sacks
New York : Alfred A. Knopf, 2012.

In his newest book Oliver Sacks, a practicing physician known for such books as The Man Who Mistook His Wife for a Hat and Musicophilia, turns his attention to hallucinations. While in popular culture we tend to think of hallucinations as being psychoses and in the realm of insanity, he focuses primarily on the sort of neurological disorders that sane people have. In fact, hallucinations may not be as odd as we think - haven't we all felt like there was someone behind us, or heard our name even when no one was around?

Primarily organized around types of hallucinations - visual, aural, parkinsonian, phantom limbs, etc. - the book is a fascinating blend of history and case study. Perhaps I was most fascinated to discover the types of hallucinations that I've had, mostly as a child, when I was in that state between sleep and wakefulness and "saw" someone by my bed or in my room. There are other, less common, hallucinations explored, too, and I really enjoyed when he brought up the results of fMRI scans done during hallucinations. The connections between what one experiences and what goes on the brain intrigues me, and I'll definitely be looking to read some of Sacks' earlier works.

The Violinist's Thumb

by Sam Kean
New York : Little, Brown and Co., 2012.

Sam Kean, the author of The Disappearing Spoon, a book about the periodic table of elements, now turns his attention to genetics and evolution. In The Violinist's Thumb, he takes a non-technical approach to recounting the history of genetic inquiry and the various information we can learn about ourselves through our DNA. Covering Mendel to Watson, viruses to hominids, and throwing in many a funny story to boot, Kean writes an entertaining look at many aspects of genetics.

Though at times I found his approach a little too basic and I wished greatly for footnotes. At times, Kean seemed to gloss over potentially complicated discussions, making me wonder if he was oversimplifying here and there in the interest of narrative clarity. More than once, he stepped on my religious toes whilst trying to be funny. But for the most part, this is an engaging account about a fascinating subject. Kean does a good job of taking what could potentially be a very difficult, dry, or technical topic and making it accessible. His real-life historical examples of crazy experiments or historic people with genetic disorders add vivacity and relevance to the various topics he covers.

Oh and by the way, there's an Easter egg in the text that I had incredible fun trying to figure out. Good luck!

The Elegant Universe

by Brian Greene
W.W. Norton and Co., 2003.

Relativity and quantum mechanics both help us understand the universe, but in some cases the equations involved don't play nice and come up with nonsensical answers. Superstring theory (or string theory for short) is a "theory of everything" that attempts to better explain the universe. The gist of the theory is that instead of particles (electrons, quarks, etc.), the smallest units are, in fact, vibrating one-dimensional strings. In The Elegant Universe, Greene expands on the basics to explain in fairly non-mathematical language what the possible ramifications would be.

I admit, I probably would not have been able to finish this book if I hadn't had help from an engineer. I never took physics in school, though I'm fascinated by the subject and have read a handful of popular science books on the topic. In the first few chapters, Greene details what has gone on in physics before, from our changing understanding of gravity, to special and general relativity. In chapter 5, he switches gears and lays out the basics of string theory. Chapter 7 on gets more and more speculative as Greene explores supersymmetry, black holes, how 10 dimensions could exist, and more. He is a definite proponent of the theory, and is not always clear about what is a core part of string theory or what is a fun mathematical possibility within the theory. Still, it was entertaining to read and a mind-stretching experience. I will be very interested in seeing what the next decade brings to the search for a theory of everything.