A biophysicist reveals the hidden unity behind nature's breathtaking complexity
The form and function of a sprinting cheetah are quite unlike those of a rooted tree. A human being is very different from a bacterium or a zebra. The living world is a realm of dazzling variety, yet a shared set of physical principles shapes the forms and behaviors of every creature in it. So Simple a Beginning shows how the emerging new science of biophysics is transforming our understanding of life on Earth and enabling potentially lifesaving but controversial technologies such as gene editing, artificial organ growth, and ecosystem engineering.
Raghuveer Parthasarathy explains how four basic principles--self-assembly, regulatory circuits, predictable randomness, and scaling--shape the machinery of life on scales ranging from microscopic molecules to gigantic elephants. He describes how biophysics is helping to unlock the secrets of a host of natural phenomena, such as how your limbs know to form at the proper places, and why humans need lungs but ants do not. Parthasarathy explores how the cutting-edge biotechnologies of tomorrow could enable us to alter living things in ways both subtle and profound.
Featuring dozens of original watercolors and drawings by the author, this sweeping tour of biophysics offers astonishing new perspectives on how the wonders of life can arise from so simple a beginning.
The chapters on embryos, organs, the microbiome, and scaling are particularly fresh, insightful, and beautifully clear. Also, unlike so many popularizations, this one is full of graceful graphics that actually clarify key points -- not just eye candy.
Parthasarathy respects the reader too much to give a jumble of just-so stories wrapped in a few human interest stories. Instead he explains, often with brilliant metaphors to everyday experience. Any aspiring science student, and really most specialists, will benefit immensely from this book.
Parrando’s Paradox is my fav paradox, specifically regarding predictable randomness. Applying this to cell fate and gene expression in differentiation absolutely fascinated me. Also here is my PSA on how GMOs are not harmful and if humans want to protest the one thing that can save the human species, so be it. Can’t fix stupid
This fascinating biophysics book tries to demonstrate the complexity that arises out of self-assembly, regulatory circuits, predictable randomness, and scaling laws. Parthasarathy covers ground I've encountered in other pop-sci books, but he answers a lot of questions along the way that other books often gloss over-- things like, how does deciphering a genome actually work, how do molecules encounter each other in a cell, how stiff is DNA, why are surfactants so important for lung function, etc., etc. I thought his descriptions of the role of Brownian motion were particularly good. That said, there were times when I felt the enthusiasm exceeded the explanatory clarity. Even as a relatively informed layman, I got lost in some of his descriptions of the specific mechanisms of action for things like transcription factors. Despite that, this is a worthy read for its efforts to sketch the basic principles life uses to build its ingenious machinery.
Straightforward reading, with good explanations. You likely think of yourself as human. Your body is made up of a few trillion human cells, each enclosing a human genome, lending support to our concept of species identity. However, your body is also home to several trillion microorganisms -mostly bacteria with some archaea, and some eukaryotic microbes as well- so many that if you held a vote, your human cells would probably lose These microbes inhabit your skin, your mouth and every warm, wet surface you can imagine, but by far the largest fraction resides in your intestines. Chapter 9 Studying the gut microbiome is essential to detecting various disorders, ailments, diseases generally speaking. Making sense of our intestinal ecosystem is very much a work in progress. ... I'll describe how I dropped nearly all of my other research to pursue the idea that there may be physics in the strange substance of the gut microbiome. Chapter 9
This author, researcher and scientist analyses bacteria in zebrafish. The bacterium that causes cholera is studied extensively. Cholera still kills 1oo,ooo people each year (due to inadequacy in sanitation). His research with the cholera bacterium in zebrafish larvae was done to observe the mechanics in which the native gut-bacteria of the zebrafish larvae expelled the invading bacteria. In Chapter 16, Designing The Future,one of the questions discussed is What does it mean to edit an embryo? and naturally, what arises is the ethical point, should it be done? The research done in this book seems to be up to 2018 and with new diseases, more cancers and the pandemic, research has to be non-stop especially at places such as Sloan-Kettering, and John Hopkins.
Many humans, in my opinion, are more than ready to have an organ like the pancreas grown outside the human body transplanted into a human with a 'sick or dying' pancreas. Scientifically thinking, it's not as easy as we think. Reading chapter 8, Organs By Design covers the research needed to make this happen. Many Universities and Medical Research campuses are hoping to accomplish just that. Generate organs outside the body.
Book Overview: "Raghuveer Parthasarathy explains how four basic principles—self-assembly, regulatory circuits, predictable randomness, and scaling—shape the machinery of life on scales ranging from microscopic molecules to gigantic elephants. He describes how biophysics is helping to unlock the secrets of a host of natural phenomena, such as how your limbs know to form at the proper places, and why humans need lungs but ants do not. Parthasarathy explores how the cutting-edge biotechnologies of tomorrow could enable us to alter living things in ways both subtle and profound."
Kuru means to shake in Fore. They eat dead family members for respect.
Cells must decide which protein to make, when and how much to make it.
The structural similarity of RNA & DNA allows RNA to serve as decoy.
Kuhn length: polymer's straight line length.
Random walk: for N steps, √N steps away from the starting point.
İnternal pressure in virus is tens of atmospheres. (Air pressure in car tire is 2 atm)
What is true for E. Coli is true for the elephants. Monod.
Oscillation of activity is possible because of decay.
Mycobacteria is only organism to have trehalose lipid in its membrane.
What sets the speed of thought? Brownian motion illuminates a deep connection between structure and time. Microseconds for neurotransmitters, nanosecond for CPU.
Sonic hedgehog morphogen: differentiation by concentration.
Why can't a bacterium swim like a whale? Low Reynold's number.
Are cockroaches isometric? Yes.
Why elephants can't jump? They are not isometric. Area scales by squared, cube by cubing.
Why don't ants have lungs? Diffusion is enough.
Basal metabolism is inversely proportional to body size which is proportional to lifespan.
What makes science science is that ideas are tested by their ability to make predictions about the real world.
Why watermelons are red? Sweetness gene is close to red color gene. Selective breeding does not seperate the two.
Many works of brilliance and beauty have been created by people who suffered depression, a trait that is partly hereditary. Eliminating it may lose the some richness of humanity.
Nature is red in tooth and claw. Tennyson.
Haber-Bosch process is the largest single factor underlying humanity's population explosion.
I found this a fascinating book. Coming from a more physics than biology background I was delighted to find the physics approach embedded in the explanation of all things biological. Of course, if I had thought about it, how else could it be? It is still a wonder that everything 'just works', self organising to produce all the variety of life we see in the world. This book explains it very well, aided by fantastic hand drawn diagrams. Highly recommended.
An interesting read. Talks about about how complex biochemistry and microbiology emerges from the fundamental physics of transfer of energy, entropy, flow of information and quantum mechanics. The writing style is also clear and thought provoking. I think anyone with even a high school science education should be able to understand the contents of this book, which are not usually talked about in popular science.
Really interesting sketch of how physics principles apply to biology. I particularly loved the treatment of protein folding, DNA packing and scaling. A little disappointed that so much of the later part of the book was taken up with CRISPR, not because it wasn't interesting but because it has been treated so well in other places and seemed less physics centered.
I learned a lot from this book about the importance of physical features and laws on the development of life, but I didn’t see any particularly deep philosophical insights emerging from this knowledge. It reads as descriptive science and abstains from drawing bold conclusions from it. Certainly, many popular science authors overdue it, but I think this book doesn’t go far enough.