Sunday, October 25, 2009

Capclave

I spent much of last weekend at Capclave 2009. Capclave is the annual DC area SF con. I don't always make it, but this was my fifth time there.
 


Like the dodo logo?  That's the Capclave symbol, befitting their slogan, "Where reading is not extinct!"

Capclave is a small, intimate con -- about 200 attendees in a typical year. It draws lots of local writers, including MAFIA.

Tuesday, October 20, 2009

Rock of ages

No one minds me calling a billion years an age, do they?

Earth, the third rock from the sun (I loved that show), is ~4.6 billion years old, the sun a bit older. (Exact estimates vary, of course.)  In that time, lots has happened.  The sun grew about 30% hotter (and it's not done).  The Earth cooled from the heat of collapse as it coalesced out of the primordial material of the pre-solar system. Oceans and atmosphere formed. Life emerged. In time, oxygen-producing life evolved and totally changed the atmosphere.

Interesting things keep happening. Radioactive decay keeps the core hot and drives plate tectonics. Carbon-bearing rock disappears into the inter-plate subduction regions, and is returned to the atmosphere by volcanic eruptions. Continents drift, also driven by plate tectonics. There's erosion, and mountain building, and sedimentation. Ice ages come and go.

Oh yeah: early in Earth's history, a Mars-sized object smashed into our planet, melted the top many miles of Earth's surface, and blasted enough stuff into space to re-coalesce as the moon. 

And on, and on. 

In short, Earth is a complicated place. Geoscience, this month's theme at the Year of Science, deals with this very complex amalgam of physics, biology, and chemistry. After I harped at the non-science of recent months' YoS themes, I'm happy to see a real science recognized this month. Check it out.

And don't miss this six-minute video that introduces geoscience and has some absolutely stunning imagery. Earth is a beautiful place.

Tuesday, October 13, 2009

Small Miracles

Latest update: September 3, 2024. New editions are out in hardback, trade paperback, and ebook formats. The Audible (audio) edition remains available. 

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Fair warning: this is a commercial announcement.

My latest near-future thriller -- this time dealing with medical nanotechnology -- was released on October 13. A new book's release is always exciting, but this release is doubly noteworthy. That's because SMALL MIRACLES is this month's "SCI FI Essential" title.

Original (2009) cover
And what is that? "SCI FI has teamed up with Tor Books, the largest publisher of science fiction and fantasy in the world, to spotlight some of the best new science-fiction novels, from both new and established authors.... Each month we select a new book as a SCI FI Essential. That means it deserves to be counted among the finest works of the genre."

To top off that endorsement, here are some early quotes:

Saturday, October 10, 2009

Otherwhere

For the next couple of months I'll be guest blogging at Tor.com. That's a great SFnal website, by the way ... if you haven't yet checked it out, you should. In addition to a large set of bloggers -- many names you'll surely recognize -- the site features first-rate free fiction. For example, Cory Doctorow has a long serial now running. 

During my guest-blogging stint, I'll continue blogging here at SF and Nonsense -- if not necessarily as often.

Tuesday, October 6, 2009

Not to make light of things

This morning brings news that the 2009 Nobel Prize for Physics was awarded to Charles K. Kao, Willard S. Boyle, and George E. Smith.  Kao was recognized for his work with fiber-optic cables, central to modern digital networks. Boyle and Smith were recognized for their work with charge-coupled devices, the key component of digital cameras.

Well deserved recognition, of course. And yet, I'm struck by whom the Royal Swedish Academy of Sciences continues to slight: Nick Holonyak.

Thursday, October 1, 2009

Life by the numbers

I last formally studied biology in high school.  (No clues will be given how long ago that was.) Lots of memorization. Little in the way of organizing principles. At the time, I didn't find it very interesting.

In recent years, though, I've been revisiting biology. It probably didn't hurt that two of my college physics buddies eventually got their PhDs in biophysics. And in the course of reintroducing myself to elements of modern biology, I recently read a book that reexamines cellular and molecular biology with tools very familiar to me as a a physicist and computer guy.  

The book is An Introduction to Systems Biology: Design Principles of Biological Circuits, by Uri Alon (of the Weitzman Institute).

Circuits, you ask?

Circuits, indeed. Take the process of gene transcription: which genes in which cells are activated to express which proteins.  And which cells lock into particular tissue types, and why, despite all cells in an organism having identical genetic makeup.  It all happens amid lots and lots of feedback loops, because proteins (some acting as proxies for environmental factors) influence gene expression influence proteins influence ...

The fascinating theme of this textbook is: straightforward underlying principles drive this complexity. 

Wednesday, September 23, 2009

Shakes his head ...

Do the folks organizing the Year of Science not know what a science is?  Or do they just not care?

Physics is the study of matter and energy and their interactions.  Chemistry is the study of the composition and properties of substances.  Biology is the study of living organisms. (Don't ask me to draw precise boundaries between physics, physical chemistry, and molecular biology.) Ecology is the study of the interrelations between living organisms and their environment.

What you don't see in any of those definitions is a value judgment.

This month's YoS theme is Biodiversity and Conservation.  Is anything wrong with preservation and efficiency? No (at least within limits). But this month's theme is about what to DO with nature, not how stuff in nature WORKS.

What goes beyond a reasonable limit? One extreme approach toward maintaining biodiversity (NOT suggested by the YoS folks) is the voluntary human extinction movement. That values conservation of every species but one: us.

My other gripe with this month's theme is that "conservation" sometimes masks a retreat from the notion of progress. Take eliminating the smogs that once blighted London and Los Angeles. Progress -- better ways of generating power; catalytic converters; more efficient auto engines -- had at least as much to do with that happy outcome as conservation -- driving fewer miles.

A note to YoS organizers: if it's not too late, let's talk about ... science.

Thursday, September 17, 2009

Trope-ing the light fantastic (nanotech & replicators, part II)

As I obviously believe nanotech is for real, why am I using the trope subject line?

In that recent post, I cited the industry's road map, from nanomaterials to nanocomponents to functional nanosystems, all the way to scaled, atomically precise, productive nanosystem array systems. The trope possibility comes from the word you did not see: replicator.

Replicator, of course, is the SFnal term for things that copy themselves -- for plot purposes, generally without limit. They come from an idea in K. Eric Drexler's Engines of Creation, which popularized the notion of nanotech. Drexler discussed nanomachines called assemblers that would (duh!) assemble other machines, including -- and here is where the madness begins -- machines like themselves.