Tag: science

In favor of the opposition of Saturn

My wife sent me something about the opposition of Saturn last Saturday night, which meant it’d be more visible than usual. While at the library that day I saw they had a monocular telescope for checkout to use with smartphones, so I decided to check it out in case I had the opportunity to try for a shot.

And we did. Before bedtime for our five year old, we managed to catch a glimpse of it between some trees outside our back door. Behold my hasty, heavily magnified iPhone astrophotography:

I kept jumping between regular and night mode and playing with the focus for the best possible shot, and that’s what I managed to get. I told him how special it was that we were able to see it, both due to the astronomical factors and just being alive during a time when Saturn still has its rings (it’ll have to say goodbye in about 100 million years).

Science!

Scientific achievements that deserve their own ‘Oppenheimer’

I half-joked in my Oppenheimer blurb that I have a long list of history books that also deserve to be turned into IMAX-worthy epics.

Well, I’m happy to report my favorite author Steven Johnson is also on board with this movement—specifically for the story of penicillin and other incredible scientific achievements:

If Nolan can create an IMAX blockbuster out of quantum mechanics and Atomic Energy Commission hearings, surely someone could make a compelling film out of this material. There’s even a crazy subplot—that I also wrote about in Extra Life—where Hitler’s life is saved by American penicillin after the 1944 Wolf’s Lair assassination attempt. And yet, for some reason, those films just don’t seem to get made. 

We get endless entertainment offerings about the Apollo missions, but nothing about the global triumph of eradicating smallpox. We get big-budget features following brilliant scientists as they figure out ever-more-effective means of conducting mass slaughter, and not films about brilliant scientists collaborating to keep soldiers and civilians from dying horrifying deaths from sepsis and other infections. Apparently, we like rockets and bombs more than pills and needles—or at least that’s what we’re told we like. 

Johnson’s books are great examples of nonfiction page-turners that could easily be movie material, from the pirates of Enemy of All Mankind to the epidemiological murder mystery at the center of The Ghost Map. Not to mention any number of the threads within Extra Life or How We Got to Now that show the unlikely and riveting origins of miraculous innovations we now take for granted.

There’s also the books in my Technically First series, several presidential biographies, a multitude of microhistories… all surefire $1 billion blockbusters in waiting if you ask me.

On ‘The Science’ and dedication to reality

Alan Jacobs:

There are many reasons why millions of America don’t trust The Science, including belligerence and ignorance, but if you ask me, I would say that the most important reason is illustrated by the stories above: Scientists are sometimes untrustworthy. If they want to rebuild our trust in them, then they should start with three steps:

1. Practice the self-critical introspection that would enable them to perceive that, because they are human beings, there are some things they very much want to believe and some things they very much want to disbelieve;

2. Acknowledge those preferences in public;

3. Show that they are taking concrete steps to guard themselves against motivated reasoning and confirmation bias.

One of the most transformative concepts I’ve encountered is from M. Scott Peck’s The Road Less Traveled. He talks about four pillars of good self-discipline, one of which is “dedication to reality.” (The others: accept responsibility, balancing, and delayed gratification.)

Peck uses map-making as a metaphor for how we build and understand reality:

We are not born with maps; we have to make them, and the making requires effort. The more effort we make to appreciate and perceive reality, the larger and more accurate our maps will be.

This effort is really hard work. It means sustained, resilient dedication to updating our maps. But/therefore:

What happens when one has striven long and hard to develop a working view of the world, a seemingly useful, workable map, and then is confronted with new information suggesting that that view is wrong and the map needs to be largely redrawn? The painful effort required seems frightening, almost overwhelming. What we do more often than not, and usually unconsciously, is to ignore the new information.

This happens to everyone, not just scientists. Motivated reasoning and confirmation bias are baked into human psychology, which is why they’re so hard to overcome. Hence:

A life of total dedication to the truth also means a life of willingness to be personally challenged. The only way that we can be certain that our map of reality is valid is to expose it to the criticism and challenge of other map-makers.

Which, again: really hard.

Peck’s metaphor is based on the legacy medium of printed maps but arguably remains even more applicable today, given how Google Maps and the like allow for real-time updates and helpful added layers of useful information like traffic flow, accidents, construction slowdowns, bike paths, and so on.

Similarly, thanks to the internet, it’s never been easier to encounter new information that either confirms or clashes with one’s existing map of reality.

So the challenge remains: what to do with that information?

The Rockefeller theory of time travel

Morgan Housel:

Charlie Munger was born in 1924. The richest man in the world that year was John D. Rockefeller, whose net worth equaled about 3% of GDP, which would be something like $700 billion in today’s world. Seven hundred billion dollars.

OK. But make a short list of things that did not exist in Rockefeller’s day: Sunscreen. Advil. Tylenol. Antibiotics. Chemotherapy. Flu, tetanus, measles, smallpox, and countless other vaccines. Insulin for diabetes. Blood pressure medication. Fresh produce in the winter. TVs. Microwaves. Overseas phone calls. Jets.

To say nothing of computers, iPhones, or Google Maps. If you’re honest with yourself I don’t think you would trade Rockefeller’s $700 billion in the early 1900s for an average life in 2022.

Moon moon moon, shining bright

I was playing soccer on the front lawn this evening with Mr. Two Years Old when the moon, waxing crescent, caught his curious eye in the encroaching darkness.

I asked him if he knew why the moon glowed. We’ve read books about it before, but he said he didn’t. I explained in the simplest language how it was sunlight he was seeing, and that it only hit part of the moon because it was round, like a ball.

After my brief lecture, he grabbed the ball and brought it next to one of the solar-powered lawn lights that illuminates our front walkway. “I want to make the soccer ball glow,” he said.

It was an excellent opportunity for an object lesson. We looked at how the ball was lit up only on one side, where the light was coming from.

I managed to photograph the view before he kicked the ball away for more scrimmaging:

I never know how much of what I explain actually makes sense to him or sticks in his mind. But I should know by now never to underestimate his intelligence and curiosity, because two year olds are made to be learners.

The Ghost Map

When I learned Steven Johnson (my favorite author) has a new book out, it prompted me to finally read one of his previous books that’s been on my list for a while.

The Ghost Map: The Story of London’s Most Terrifying Epidemic—and How It Changed Science, Cities, and the Modern World was a timely read, for obvious reasons. Though cholera is a different beast than COVID (“Imagine if every time you experienced a slight upset stomach you knew that there was an entirely reasonable chance you’d be dead in forty-eight hours”), its effect in this story and throughout history shows us both how far science has come since the Victorian Age and how vulnerable we remain to infectious diseases.

What I love most about this book—even beyond the historical factoids and masterful storytelling you can expect from any Johnson joint—is that it’s basically a murder mystery, with cholera as the microbial serial killer and an unlikely detective duo of a doctor and a priest hunting it during a deadly epidemic in the crowded, putrid London of the 1850s.

Call it an epidemiological thriller. Probably not much competition in that sub-genre, but Johnson made the most of it.

Quotes

I like Johnson’s description of London at the time:

an industrial-era city with an Elizabethan-era waste-removal system as perceived by a Pleistocene-era brain.

On the topography of progress:

The river of intellectual progress is not defined purely by the steady flow of good ideas begetting better ones; it follows the topography that has been carved out for it by external factors.

On great intellectual breakthroughs:

It is rarely the isolated genius having a eureka moment alone in the lab. Nor is it merely a question of building on precedent, of standing on the shoulders of giants, in Newton’s famous phrase. Great breakthroughs are closer to what happens in a flood plain: a dozen separate tributaries converge, and the rising waters lift the genius high enough that he or she can see around the conceptual obstructions of the age.

On miasma theory and the “sociology of error”:

It’s not just that the authorities of the day were wrong about miasma; it’s the tenacious, unquestioning way they went about being wrong. …

How could so many intelligent people be so grievously wrong for such an extended period of time? How could they ignore so much overwhelming evidence that contradicted their most basic theories? These questions, too, deserve their own discipline—the sociology of error.

Laboratories of theology

Here’s two quotes I re-encountered while going through my reading notes.

From Lab Girl by Hope Jahren:

My laboratory is like a church because it is where I figure out what I believe. The machines drone a gathering hymn as I enter. I know whom I’ll probably see, and I know how they’ll probably act. I know there’ll be silence; I know there’ll be music, a time to greet my friends, and a time to leave others to their contemplation. There are rituals that I follow, some I understand and some I don’t. Elevated to my best self, I strive to do each task correctly. My lab is a place to go on sacred days, as is a church. On holidays, when the rest of the world is closed, my lab is open. My lab is a refuge and an asylum. It is my retreat from the professional battlefield; it is the place where I coolly examine my wounds and repair my armor. And, just like church, because I grew up in it, it is not something from which I can ever really walk away.

From Underland: A Deep Time Journey by Robert Macfarlane:

My sense is that the search for dark matter has produced an elaborate, delicate edifice of presuppositions, and a network of worship sites, also known as laboratories, all dedicated to the search for an invisible universal entity which refuses to reveal itself. It seems to resemble what we call religion rather more than what we call science.

We’re in this together

Via Kottke, WHO Director-General Tedros Adhanom’s opening remarks at today’s media briefing on COVID-19 officially declared COVID-19 a pandemic. Despite the alarm that word may raise raises, Adhanom concluded his remarks with some wise words:

Let me give you some other words that matter much more, and that are much more actionable.

Prevention.

Preparedness.

Public health.

Political leadership.

And most of all, people.

We’re in this together, to do the right things with calm and protect the citizens of the world. It’s doable.

Burn this into bronze: We’re in this together, to do the right things with calm and protect the citizens of the world. It’s doable.

Black hole stun from backwater bipeds

In case you haven’t been following the news (and who can blame you?), that’s the first-ever image of a black hole:

There’s plenty of writing out there on what it means, much of it going over my head, but here’s some grounding perspective from Scientific American:

It is also worth noting that in the two hours after the press conference, at least six scientific papers on the observation have appeared online. They almost certainly contain clues and new questions that will take more time to process than a 24/7 news cycle can tolerate. For now, though, it is worth pausing for a moment to consider the strangeness of nature, and the remarkable fact that these sentient, tool-using bipeds on a small world in a backwater solar system somehow managed to turn their planet into a telescope and take a picture of an exit chute from the universe.

Atlas of a Lost World

We think of ourselves as different from other animals. We extol our own tool use, congratulate our sentience, but our needs are the same. We are creatures on a planet looking for a way ahead. Why do we like vistas? Why are pullouts drawn on the sides of highways, signs with arrows showing where to stand for the best view? The love for the panorama comes from memory, the earliest form of cartography, a sense of location. Little feels better than knowing where you are, and having a reason to be there.

— from Atlas of a Lost World: Travels in Ice Age America by Craig Childs, a meaty and winding travelogue around North America investigating notable Pleistocene spots, like the Bering land bridge in Alaska and the woolly mammoth remains in Clovis, New Mexico.

I recently realized how fascinated I am with prehistoric people and their times: What was life like back then? How similar were Ice Age humans to us? Childs goes a long way in finding out, hiking through tundra and camping out in a polar vortex and trudging through Floridian swamps. Archaeology, anthropology, sociology, mythology, and philosophy all come into play.

“Science is useful,” he writes. “It fills in the blanks with precision, but history is ultimately more about stories and the unfolding of human whims.”

My Birthday Planets

Thanks to Fourmilab (via kottke), I discovered exactly how the planets were aligned on the day of my birth:

Solar-914.gif

You can find your own here.

The Kelloggs: The Battling Brothers of Battle Creek

In the summer of 2013 I interned at the Leo Burnett advertising agency’s corporate library and archives. In the course of my work I came upon boxes of original conceptual artwork and copy from the 1950s and ’60s of the famous brands Leo Burnett created: the Marlboro Man, the Jolly Green Giant, the Pillsbury Doughboy. They also created several of Kellogg’s famous clan of characters: Tony the Tiger, Snap Crackle and Pop, Toucan Sam.

At the time I marveled at these artifacts merely as a student of history and consumer familiar with these characters. But now, having read Howard Markel’s new book The Kelloggs: The Battling Brothers of Battle Creek, I see those characters not as the foundation of the Kellogg’s brand, but, since they were created after both Kelloggs died, as its unintentional consummation.

If you’re like me, you:

(a) didn’t know there was more than one Kellogg;

(b) didn’t know one of them was John—a renowned doctor in his time (1880s-1940s), founder of the Sanitarium in Michigan, and “better living” proponent who was way way ahead of his time on dangers of prolonged sitting, meat consumption, smoking, and the benefits of exercise—and the other was Will, John’s long-suffering younger brother, dour millionaire magnate of the Kellogg cereal line we all know (that’s his signature on the box); and

(c) didn’t know they hated each other’s guts.

Markel covers a lot of ground in this family biography. On one hand this provides readers with a backstory I suspect most haven’t heard before, like how the Kelloggs were reared in an apocalyptic Seventh-Day Adventist culture that valued health reform and that bankrolled the Sanitarium in Battle Creek that sprung John to global renown. John was the idea man, the charismatic physician into what would now be called alternative medicine, and (let’s be honest) overbearing asshole. Will, conversely, was the details man, adept business manager, and John’s put-upon lackey before he set off on his own to expand his cereal empire and his bitterness toward John. (He was also an overbearing asshole.) Because of long-held resentments and their similar products with the same last name, the brothers sued each other throughout the 1910s and never reconciled, even into old age.

On the other hand, Markel covers so much ground and in a sometimes scattershot way that it can be an exhausting read. As a physician and medical historian himself, Markel shines in the parts about John’s development as a doctor and how it influenced his products. He illustrates the cruel irony of brothers so focused on creating products and principles based on health and “better living” for others feeding a most unhealthy rancor towards each other. He also ably balances the brothers’ colorful back-and-forth over the years, thanks to an abundant written record at his disposal. But the parts about the inner workings of the businesses get repetitive and wearying, and the last few chapters—tackling the post-litigious years and John’s unfortunate promotion of eugenics—feel tacked on when they could and should have been better integrated into the narrative, which is as a whole chronologically discombobulating.

Nevertheless, this is an illuminating portrait of a foundational American family and their business empire. Though not quite a tragedy in the end, given the Kellogg Foundation’s continued charitable work (thanks to Will leaving his millions with them after alienating all his progeny), it is a grim reminder of the power we waste on hatred and how wealth can’t cure, in Markel’s words, a “damaged soul.”

Ötzi-quel

This ongoing saga of Ötzi the Iceman fascinates me. I first learned of him from Radiolab a few years ago, but turns out we keep learning more about this mythic Italian mummy:

The more scientists learn, the more recognizable the Iceman becomes. He was 5 feet 5 inches tall (about average height for his time), weighed 110 pounds, had brown eyes and shoulder-length, dark brown hair, and a size 7½ foot. He was about 45, give or take six years, respectably old for the late Neolithic age — but still in his prime.

Still kinda blown away science can figure this stuff out:

From examining traces of pollen in his digestive tract, scientists were able to place the date of Ötzi’s death at sometime in late spring or early summer. In his last two days, they found, he consumed three distinct meals and walked from an elevation of about 6,500 feet, down to the valley floor and then up into the mountains again, where he was found at the crime site, 10,500 feet up.

More to come, I hope.

Refer Madness: Future Scientist?

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Refer Madness spotlights strange, intriguing, or otherwise noteworthy questions I encounter at the library reference desk.

A mom was looking for her middle-school daughter’s next book. She said her daughter had loved The Hunger Games, The Maze Runner, and “all the Holocaust stuff.” But she wanted her to discover some real people as well. My first thought was the young adult version of Unbroken, but the library didn’t have that one. I asked if she liked creepy stuff and graphic novels, because then Emily Carroll’s Through the Woods might hit the spot. (Nope: “We showed her The Sixth Sense — big mistake.”) But she took it for herself, because she loved creepy stuff.

Then, right before the mother was checking out, I remembered we had Rachel Ignotofsky’s beautifully illustrated Women in Science: 50 Fearless Pioneers Who Changed the World on the New Nonfiction shelf. Real women, nonfiction, easy read. I gave it to the mother and hoped for the best.

In my dreams the girl reads it and has her mind blown by the badass women throughout science history, leading her to a career in science wherein she invents something that saves my life a few decades from now. Or she reads the first page, gets bored and discards it. Such is the way of things in readers advisory.

Refer Madness: PB & A

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Refer Madness spotlights strange, intriguing, or otherwise noteworthy questions I encounter at the library reference desk.

Here’s an interesting one that came to the desk: the PseudoBulbar Affect. (Pseudo “false” + Bulbar, referring to the brainstem.)

A patron said she had it and was looking for some scholarly information about it. According to PBAinfo.org, PBA occurs when “certain neurologic diseases or brain injuries damage the areas in the brain that control normal expression of emotion. This damage can disrupt brain signaling, causing a ‘short circuit’ and triggering involuntary episodes of crying or laughing.”

These outbursts can be inappropriate (spontaneous crying or laughing when neither are warranted) and exaggerated (more intense or larger than the situation merits). Common causes include traumatic brain injury, Alzheimer’s or dementia, stroke, multiple sclerosis, Parkinson’s, and Lou Gehrig’s disease.

The first reference to PBA is credited to the Charles Darwin, in his 1872 book The Expression of the Emotions in Man and Animals, and it’s in the kind of language that sounds crass now to our more medically enlightened ears: “We must not, however, lay too much stress on the copious shedding of tears by the insane, as being due to the lack of all restraint; for certain brain-diseases, as hemiplegia, brain-wasting, and senile decay, have a special tendency to induce weeping.”

The more you know.

The Hunt for Vulcan

I’ve never forgotten the scene in Men in Black, when Jay (Will Smith) and Kay (Tommy Lee Jones) are sitting on a bench facing the New York City skyline. Jay has gotten a brief but shocking glimpse of the secret alien world Kay is trying to recruit him into, one that few people know about.

“Why the big secret?” Jay asks. “People are smart. They can handle it.”

“A person is smart,” Kay responds, but “people are dumb, panicky, dangerous animals and you know it. Fifteen hundred years ago, everybody knew the Earth was the center of the universe. Five hundred years ago, everybody knew the Earth was flat, and fifteen minutes ago, you knew that humans were alone on this planet. Imagine what you’ll know tomorrow.”

This scene came to mind right after I finished reading Thomas Levenson’s new book The Hunt for Vulcan: …And How Albert Einstein Destroyed a Planet, Discovered Relativity, and Deciphered the Universe. Levenson writes about the now-forgotten period between 1859 and 1915 when scientists believed our solar system had a planet called Vulcan within Mercury’s orbit. An anomaly in Mercury’s orbit affected its gravitational trajectory just enough to suggest another mass was tugging on it. Professional and amateur astronomers alike made several attempts to observe this mystery mass, and some reported doing so. But it wasn’t until decades later, when Einstein applied the principles of his new theory of relativity to the orbital calculations, when those sightings were finally reclassified as misidentified stars and the coulda-woulda-shoulda planet Vulcan was expunged from the solar system.

This same process had happened in the mid-nineteenth century, when the French astronomer Urban Jean Joseph Le Verrier used Isaac Newton’s theory of gravity to discover Neptune, which, like Vulcan decades later, was hiding within a mysterious gravitational blip of a nearby planet. A decade after Neptune’s discovery Le Verrier detected Mercury’s anomaly, so he followed the same reasoning as before, expecting it to reveal the source of the anomaly just as Uranus had done with Neptune. But it didn’t happen. What mathematically should have existed stubbornly refused to reveal itself.

As much as we could interpret this case study as a warning against relying on dogmatic belief over science, fallibility can extend both ways. When Einstein sought to tackle the problem of gravity and relativity, which did not fall in line with Isaac Newton’s time-tested theories, his colleague Max Planck cautioned him against it. It was too hard a problem, he said, and not even other scientists would believe him. Why? Essentially, because they are human: “Science may celebrate the triumph of the better idea,” Levenson writes. “Scientists don’t, not always, not immediately, not when the strangeness involved takes extraordinary effort to embrace.”

If we extrapolate this Case of the Missing Planet to even bigger questions about creation and the universe, it may trigger some challenging questions. Is God just another word for something we haven’t solved yet (or, as astrophysicist Neil deGrasse Tyson has framed it, does God mean more to you than just where science has yet to tread)? Or does the entire system of scientific inquiry shortchange the presence of the divine?

“We know now that Vulcan could never have existed; Einstein has shown us so,” Levenson writes. “But no route to such certainty existed for Le Verrier, nor for any of his successors over the next half century. They lacked not facts, but a framework, some alternate way of seeing through which Vulcan’s absence could be understood.”

What is your framework? How near or far are the boundaries of your view out into the world? What are you failing to see? Or trying too hard to see? “Such insights do not come on command,” Levenson writes. “And until they do, the only way any of us can interpret what we find is through what we already know to be true.”

This book came as close as any other I’ve read to helping my curious but overmatched brain understand how the heck relativity works. I think it’s because Levenson here seems less a scientist-author than a really smart dude at a bar who after a drink can unleash a killer stranger-than-fiction story between swigs. He paints a narrative picture that’s at once sweeping—running from Newton to Einstein and every key figure in between—and intimate, concisely explaining the nub of every junction point in Vulcan’s winding road to nowhere.

Good popular science, at least in my experience with it, really has to hit the why better than the how. It has to relentlessly thresh the wheat from the chaff, making sure every paragraph and every key moment can answer the question “Why does this matter?” within the span of an elevator pitch. People like me who read science-themed books written for a general audience do so because picking up a textbook on the same topic would be as useful as reading something in Aramaic. It just wouldn’t compute. Not in the time it would take to read, anyway.

So I greatly appreciated Levenson’s authoritative voice as much as his humane style. This book was fun. Which, given that the subtitle pretty much spoils the main events, lends even more credence to Levenson’s storytelling savvy. He guides us through some pretty heady stuff with equal parts aplomb and passion, exemplifying an Einstein quote he references when speaking of the driving force behind great work: “The daily effort does not originate from a deliberate intention or program, but straight from the heart.”

The Martian

I conducted an experiment with The Martian. Too many times I’ve read a book before seeing its movie version and have come out of the theater disappointed they didn’t show this or showed too much of that, and above all that I knew what was going to happen. Seems the conventional wisdom is that you should read the book beforehand to get the truest experience first and prepare for seeing the movie, but this doesn’t make any sense. Prepare for what? Knowing what’s going to happen so you’re not surprised? I like not knowing what’s going to happen in a movie. So I postponed reading Andy Weir’s book until after I saw the movie.

Ridley Scott’s rendition captures the book quite well. It condenses Watney’s extensive, often mind-numbing passages on the technical aspects of his survival process while maintaining the spirit of the book. (At some point a character tells another “Walk me through it,” and I thought that could easily be the title.) Watney’s play-by-play is (mostly) fascinating, absolutely, but changing it for the movie to Matt Damon directly addressing the camera/mission log allows us to see Watney’s personality come to life in real time.

The movie also, for me, elevated interest in the deliberations at NASA and on the Hermes. Screenwriter Drew Goddard cleaned up a lot of Weir’s cringeworthy dialogue in the book, or at least made it more palatable for the very talented supporting cast of Chiwetel Ejiofor, Jeff Daniels, Kristin Wiig (!), and Sean Bean on earth, and Jessica Chastain et al on the Hermes.

The book lived up to its reputation as an exciting, extremely detailed, chatty thriller slash user manual. I assumed, having seen the film, that I knew how it was going to end—that they wouldn’t have made any drastic changes to the conclusion—but it’s a testament to Weir that I stayed with it the whole time. Indeed, my palms were sweating during the climax. No doubt there’s a scientific solution for that.

How to Feel Small

I like things that make me feel small.

Like If The Moon Were Only 1 Pixel, a “tediously accurate scale model of the solar system” that, as you scroll horizontally, reveals the vast span of our neighborhood:

Or Why Time Flies, a philosophical exploration of our fungible awareness of time:

Or The Scale of the Universe (my favorite), which, as you zoom in and out, shows the comparative sizes of all creation, from the largest supercluster to the smallest neutrino (notice how everything at some point is the same size):

Or Lightyear.fm, a “journey through space, time & music” that plays songs of the past according to how far their waves have traveled from Earth since they were released:

Or The Deep Sea, made by Neal Agarwal, which shows as you scroll down the creatures (and shipwrecks) that live at different depths of the ocean. Spoiler alert: the ocean is very deep.

How We Got to Now

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I couldn’t put down How We Got To Now, Steven Johnson’s six-part book on “innovations that made the modern world.” The book is an exposition on the theory of the “hummingbird effect,” which occurs when “an innovation, or cluster of innovations, in one field ends up triggering changes that seem to belong to a different domain altogether.” The theory is so named because of how hummingbirds evolved a new way to float midair while extracting nectar from flowers, thus having one phenomena (plant reproduction) effect change in another seemingly unrelated one (bird anatomy).

Johnson illustrates this theme in six realms: Glass, Cold, Sound, Clean, Time, and Light. The book is beautifully illustrated throughout with pictures of inventors, innovators, and their creations—famous and obscure—whose intuitive leaps of imagination and engineering influenced the world in ways they could never foresee. Fifteenth-century Italian glassmakers displaced by the fall of Constantinople experimented with new kinds of glass, which found use as proto-lenses for scribes in monasteries (their lentil-like shape inspiring the name lens, from the Latin lentes for lentil), which, along with Gutenberg’s printing press allowing for cheaper and portable books, contributed to the rise in overall literacy, which exposed the farsightedness of these new readers, who suddenly realized they needed lenses to read, thus creating a new market for eyeglasses. As Johnson points out, Gutenberg didn’t set out to create a new market for eyewear: the hummingbird effect simply made it happen step by step.

It’s more complicated than that, and Johnson takes care to paint a much richer and fascinating portrait of this phenomenon in action over centuries. I had a lot of fun reading How We Got to Now because Johnson lays out a continuous string of tasty knowledge nuggets from beginning to end. On every page I learned something that I wanted to write down and share with others. We’re living in a big, beautiful, deep world that has a great story to tell. How We Got to Now helps explain why.

Einterstellar

My new definition of cosmic irony: to be in the midst of Walter Isaacson’s Einstein: His Life and Universe as I went to see Christopher Nolan’s Interstellar, a marvel of a film that directly references Einstein and his theory of relativity. I had a chuckle during the film when that moment arrived, not because I understand the theory of relativity in the least, but because the universe is mysterious and funny in that way.

Einstein would probably agree, according to Isaacson’s book. I picked it up on a whim. For being such a ubiquitous figure I knew nearly nothing about him, and since for the last few years I’ve grown increasingly interested in (and therefore increasingly perplexed by) astrophysics and the stuff of space, I thought a well-regarded biography of one of astrophysics greatest would be a good place to start. And indeed I’d recommend it to anyone, even, or especially, those who will have to skim over the arcane science passages as I did.

I think Einstein would have loved Interstellar.