click to enlarge

Over the three-day weekend of January 15–17, the Skeptics Society sponsored a geology tour organized and hosted by the Occidental College and Caltech paleontologist and geologist Donald Prothero and his Whittier College professor wife Teresa LeVelle. Around 50 skeptics departed Pasadena on a bus bound for our first stop, the Mt. Palomar observatory, home of the famous 200-inch Hale telescope, once the largest in the world and from which numerous important observations about the universe were made, including the discovery of quasars. No less an astronomical giant than Edwin Hubble was given the honor of being the first astronomer to use the telescope. They don’t build ‘em like this any longer: big and beefy!

In this limited space I cannot republish Prothero’s 30-page geological guidebook. Suffice it to say that Prothero is a brilliant lecturer who in the course of days packed in a 14-week semester’s worth of geological science as we wended our way around Southern California with it’s countless faults, uplifts, basins, and ranges. I’ll let a few photographs do the talking here, but this is no substitute for joining us on a future trip with Don Prothero, whom I call Protheropedia for his encyclopedic knowledge of seemingly everything under and including the sun. Join us, for example, on our next big trip to see the glaciers of Alaska.

Our three main locations on this trip, represented in the photographs below, after visiting and getting an inside tour of the Mt. Palomar telescope, were the Anza-Borrego badlands and surrounding areas, the Salton Sea, and the Joshua Tree National Park. All were spectacular sites for science, some of the most dramatic scenery to be found anywhere on the planet.

Click any photo below to view the entire gallery in larger format, with captions.

With considerable irony we ended the trip with a final stop along Interstate 10 west of Palm Springs (near Cabazon and the cluster of factory outlet stores just off the freeway), where you can’t miss the two giant dinosaurs—a T-Rex and a Brontosaurus (now Apatosaurus)—originally built in the 1960s by Knott’s Berry Farm sculptor and portrait artist Claude K. Bell (1897–1988) to attract customers to his Wheel Inn Café. They have been a California driving fixture ever since, and few people (including me!) realized that after Bell died his estate sold the property to an Orange County creationist who converted the site into a Young Earth Creationism park, teaching children that the entire world was created in six days around 6,000 years ago, around the same time that the Egyptians invented wine. The pictures below speak for themselves.

Stephen Hawking lectures on “My Brief History,” packs the house

On Tuesday, January 18, 2011, physicist, cosmologist, writer, and science celebrity Stephen Hawking spoke in Caltech’s Beckman Auditorium on the subject of “My Brief History,” an autobiographical journey through the life of one of the most famous scientists in history.

Tickets were in such high demand that I had to go as a member of the press, writing for Scientific American, Skeptic, eSkeptic, and Skeptic.com, and even then it wasn’t clear I was getting in to actually hear the lecture until after the press junket that afforded us a photo opportunity to pose with The Great One (see below).

Despite his handicap that prevents him from moving anything but a tiny cheek muscle, Hawking is fiercely independent and insists on writing his own speeches and delivering them sentence by sentence through a computer cursor command that he controls through twitching that one muscle, the movement of which is picked up by a small camera attached to his eye glasses (see close up photo below).

Propped up in his chair with his computer screen in front of him, Hawking delivers the lines of his speech sentence by sentence, which you can hear being commanded by a barely perceptible short buzzing sound that advances the already-written text line by line.

click image to enlarge

Hawking’s talk was a mix of anecdotes about his parents and upbringing, his schooling and early education, and his science—all of which have been outlined in countless articles, books, films, and biographies—but it was refreshing to hear it directly from the man himself, who rarely addresses the public about personal matters. Hawking was obviously gifted from early childhood, plus had the support of well-educated parents and opportunities for an excellent education. What he lacked, by his own admission, was motivation to achieve. In fact, Hawking noted that the whole point of going through higher education was to show how little effort was needed to succeed, and he took every advantage his genetics gave him for cognitive superiority to cruise through his courses while hardly lifting a finger.

All that changed when he was diagnosed with ALS, which jump-started his ambitions to roll up his sleeves and get to work on something significant to complete his Ph.D. and provide for his new family before…well, before his inevitable demise that is the prognosis of this disease. Four decades on Hawking remains paralyzed but very much alive, living life to the fullest that he can (Caltech cosmologist Kip Thorne, who hosted the event, recounted a trip to Antarctica that Hawking organized, as well as his well-publicized zero-gravity excursion in the “vomit comet” jet that flies through parabolic arcs that enable brief snippets of weightlessness. Apparently Hawking plans to be one of the first tourists into space aboard one of the developing private space flight companies.

Hawking also has a keen sense of humor, although it isn’t clear that if any of his lines were delivered by anyone else that they would be found funny. His situation is so unique, and his mind so interesting, that audiences seem eager to respond to anything he says that isn’t straight reportage about his life or science.

In previous talks that I have attended by Stephen the Q & A inevitably includes a god question, but in those days Hawking took questions from the floor, which took too long to answer so now he fields questions before the talk from Caltech students, who read them aloud to the audience, followed by Hawking’s prepared answer. Here are the three questions and Hawking’s answers:

Student question #1 from Marc Favata, a Caltech postdoc in physics: “As you well know, one of the major research efforts at Caltech concerns the detection of gravitational-radiation with LIGO (the Laser Interferometer Gravitational-wave Observatory). When the upgrades to LIGO are complete in the next 5 years or so, we expect to detect multiple gravitational-wave events from merging neutron stars or black holes. Considering the uncertainties in our understanding of the rates at which these mergers happen, are you optimistic or pessimistic about the prospects for LIGO to detect something? More importantly, could you speculate on what might be some of the ‘big surprises’ that could come from gravitational-wave observations?

Hawking: “There is uncertainty in the rate of black hole or neutron star mergers. But after the upgrade, LIGO should be able to detect gravitational waves from neutron star binaries, and we know they exist. The most exciting result would be to find something we don’t expect. I can’t say what that might be, because then it wouldn’t be a surprise.”

Student question #2 from Shiri (Teresa) Liu, a Caltech physics sophomore: “In one of your TV series, you proved that time travel from the future to the past is impossible by holding a party for time travelers from the future. In your experiment, you planned to hold a party for the time travelers at noon on a specific day. You printed many copies of the invitations and counted on some of them to survive for thousands of years, so that time travelers living in the future will read the letter and use a time machine to come back to your party. However, nobody showed up at noon that day, so you concluded that time travel from the future to the past is impossible. Here is a paradox that I have encountered by changing your party plans: Suppose that time travel from the future to the past is, in fact, possible, and suppose that you have made a firm decision, before the party starts, to print and preserve the invitations forever. Suppose, you hold your party and time travelers do show up; but soon after your party you suddenly change your mind and destroy all the letters. What will happen? Will the time travelers who showed up at your party suddenly disappear into the future when you destroy the letters? If so, haven’t you just changed the future in the past? And, by the way, I’m just curious; do you still have all the invitation letters?

Hawking: “Even if I destroyed all the invitations, the television program is on YouTube, so time travelers from the future, would know about the party. Of course, they would also know that nobody came. Maybe that’s why they didn’t turn up.”

Student question #3, from Sirio Belli, a first-year grad student at Caltech in astrophysics: “The great Russian physicist Lev Landau, in the 1930s, 40s, and 50s, ranked physicists on a logarithmic scale from 0 to 5 according to their productivity. He assigned the best score of 0 to Newton, 0.5 to Einstein, 1 to Paul Dirac and 2 to himself. What do you think would be your place on this scale? Many journalists have called you ‘the new Einstein,’ but I would like to know your opinion about the importance of your contributions to physics.”

Hawking: “Landau was good, but not that good. People who rank themselves are losers.”

A good time was had by all, and by all I mean the 1,100 people inside Beckman Auditorium, the additional 400 people in Remo Hall watching a video feed, and hundreds more on the lawn outside Beckman watching and listening on big screens and speakers. It is both rare and refreshing to see a scientist so popular that people were lined up to nab the handful of seats set aside for the general public as early as noon that day. Such is the nature of celebrity, even science celebrity.

TEDxCaltech Celebrates the Vision of Richard Feynman

On Friday, January 14, 2011, the spirit of TED (Technology, Entertainment, Design) was enacted as TEDxCaltech, one of many independent lecture series that have spontaneously emerged from the bottom up by what I call “ideas entrepreneurs,” creative individuals who want to change the world by spreading ideas in the format modeled after the annual event now held in Long Beach (albeit at a fraction of the cost: $85 versus $6000). The theme of TEDxCaltech was “Feynman’s Vision: The Next 50 Years,” celebrating Richard Feynman’s famous 1959 lecture, “There’s Plenty of Room at the Bottom,” which helped launch the field of nanotechnology. As Feynman said, “Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there.”

Feynman was famous for telling stories, so first up on the morning program was Feynman’s daughter Michelle, who recounted what it was like to hear bedtime stories from her famous father. Michelle then introduced Christopher Sykes, the British documentary film maker who cast Feynman’s stories into filmic narrative in his famous film The Pleasure of Finding Things Out (the phrase inspired by a Feynman quip about why he does science—not to change the world or discover some grand unifying theory of everything, but just for the pleasure of finding things out). Sykes recounted how intimidating it was to initially approach the normally reclusive Feynman with the idea of sitting him down in front of a camera, but Feynman agreed, perhaps because he knew his life was coming to an end because of cancer, or perhaps because Sykes is such a warm and engaging man. Whatever the reason, the world is a better place with Feynman’s voice still engaging us two decades after his death (you can watch excerpts from the film on YouTube).

The talks throughout the day were peppered by video clips of Feynman, plus musical performances inspired by Feynman’s passion for drumming. But the meat of the day was in the lectures by scientists, grad students, and even undergrad students who have carried on Feynman’s vision in various fields. To wit, Curtis Wong, a Principal Researcher in eScience at Microsoft introduced us to WorldWideTelescope.org, “a free interactive storytelling and virtual learning environment providing the highest resolution multispectral imagery of the universe.” It is a 3D tour of the universe, inspired by Feynman’s creative genius in visualizing data in a manner that enhances understanding.

click to enlarge

The afternoon sessions of heavy-duty science and technology talks were broken up with some seriously geeky humor when Caltech cosmologists Kip Thorne (whom I posed with in the picture) and John Preskill played a science-geek version of Who Wants to be a Millionaire, complete with the music, rotating spot lights between questions, and slides projecting the question and four-answer options on the screen. Since TEDxCaltech was a tribute to Feynman, all questions pertained to things that Feynman said or did, so of course the correct answer to every question was “Richard Feynman.” Nevertheless, Thorne and Preskill could not seem to agree on an answer so they had to use their three lifelines: 50/50, poll-the-audience, and phone-a-friend. The first question was:

“Who said ‘If you think you understand quantum mechanics, you don’t understand quantum mechanics.’?”

Answer choices:

• George W. Bush
• Lady Gaga
• Albert Einstein
• Richard Feynman

For this question Thorne and Preskill used their 50/50 lifeline and narrowed it down to Einstein or Feynman, and they correctly guess the latter because the former never fully accepted quantum mechanics, much less understood it.

The next two questions went the same way, forcing Thorne and Preskill to poll the audience (we got it right: “Richard Feynman”) and, finally, to phone-a-friend. For the latter, Thorne and Preskill deduced that the answer was either Stephen Hawking or Richard Feynman, so they chose to phone no less an expert than Stephen Hawking, who not only answered his phone, but when Thorne asked him to please come to Caltech to answer the question, there he was, wheeling down the aisle of Beckman Auditorium at Caltech and up onto the stage, where he promptly answered, “Richard Feynman. That’s my final answer.”

click to enlarge

The day wrapped up with speakers discussing Feynman diagrams, the squiggly lines that help particle physicists visualize what interacting subatomic particles are doing when they collide in atom smashers. Even though Feynman diagrams are so useful that they appear on blackboards in physics departments around the world—and even on the side of Feynman’s van—additional discussions noted how difficult it is to actually compute mathematically what is really happened in even the simplest of particle interactions depicted in such diagrams. Nonetheless, Feynman’s vision, and his legacy lives on.

The following is an op-ed originally published in the Los Angeles Times, Tuesday January 11, 2011 (under a different title and slightly shorter).

The media once again scrambled this past week to find the deep underlying causes of shocking events. We saw it in the rush to explain the tragic murder of six people in a shopping center in Tucson. And we saw it in the rush of stories about mass die offs of birds and fish around the country.

In the case of the shooting of Rep. Gabrielle Giffords at a shopping center in Tucson, attention has turned to the motives of the shooter, 22-year old Jared Loughner, whose political ramblings about returning to the gold standard and about excessive control by the government have sent the media searching for answers in the vitriol of right-wing talk radio, the rhetoric of the Tea Party movement, and the bellicose divide between Democrats and Republicans in Congress and elsewhere.

The mass die offs of fish and birds has spurred a number of deep causal theories, including suggestions that the apocalypse is near and that secret government experiments were to blame, such as HAARP, the High Frequency Active Auroral Research Program in Alaska that studies the ionosophere that is run by DARPA, the government’s Defense Advanced Research Projects Agency, which admittedly does sound like something concocted by the writers for the television series X-Files.

We live in a causal universe, so all effects do have causes, but before we turn to grand overarching causal theories such as political rhetoric or government experiments, we must always remember the clustering effect of randomness and how our brains tend to look for and find deeper meaningful patterns even where none exist. Toss a handful of pennies into the air and you will notice that they do not land randomly on the ground. They cluster into apparently nonrandom patterns in which some are closer and others are farther apart. There is nothing inherently hidden in such a clustering effect—no concealed forces under the ground causes the pennies to fall as they do. It’s just chance. But our brains abhor randomness and always seek meaning.

The National Institutes of Mental Health estimates that about 1% of the population suffers from schizophrenia, and that more than 25% of us have some kind of diagnosable mental disorder. As well, psychologists estimate that 1–3 percent of the U.S. population suffers from psychopathy, or the inability to feel empathy and an almost complete lack of moral conduct. Using the conservative figure of 1% and a U.S. population of 300 million people, this means that some 3 million people with either psychosis or psychopathy are walking among us, as well as tens of millions more whose mental health is askew in some way. And many of those who need it aren’t receiving treatment. Given these statistics, events such as the shooting in Tucson are bound to happen, no matter how nicely politicians talk to one another on the campaign trail or in Congress, no matter how extreme Tea Party slogans are about killing government programs, and no matter how stiff or loose gun controls laws are in this or that state. By chance—and nothing more—there will always be people such as Jared Loughner who do the unthinkable.

According to Audubon Society biologist Melanie Driscoll, about 5 billion birds die each year in the United States from a variety of causes. Because of the clustering effect of randomness it is inevitable that some of those billions of birds will die in apparent nonrandom clusters. The 5,000 red-winged blackbirds that died in Arkansas, for example, looks like an ominous cluster when scattered about the ground, but there are over 200 million red-winged blackbirds in the U.S., and according to Driscoll they fly in flocks of 100,000 to 2 million. Although 5,000 birds falling dead out of the sky sounds positively apocalyptic, it represents a scant 0.0025% of the total population.

Of course there are specific causes for specific events. We will, in time, learn of the particular personal and social conditions behind Jared Loughner’s heinous act. And biologists are already identifying the causes of each fish and bird die off. The Arkansas blackbirds, for example, died during a New Year’s eve fireworks display, which may have been a contributing factor. Biologist Driscoll notes that “they cannot see well in the dark and we know they were seen crashing into buildings and cars and poles. Necropsies show blunt force trauma to brain and breast.” Others died near power lines that are thin and hard to see at night. The American Bird Conservancy notes that of the 5 billion annual bird deaths, about 1 billion birds are killed each year in collisions with buildings, communication towers, windmills, and other human-made structures. We just never hear about them unless such deaths happen in clusters and are reported in the media, thereby triggering a type of mass hysteria that leads to conspiratorial thinking and what I call patternicity: the tendency to find meaningful patterns in both meaningful and meaningless noise.

Patternicity is what our brains do. We can’t help it. We see those clusters of events and naturally seek out deep causal meaning in some grand overarching theory. But as often as not events in life turn on chance, randomness, and statistical probabilities that are largely beyond our control. So calls for “an end to all overt and implied appeals to violence in American politics”—such as that just issued by MoveOn.org—may make us feel better but they will do nothing to alter the inevitability of such one-off events in the future.

In 2009, after speaking at a conference in Santiago on the occasion of Charles Darwin’s 200th birthday celebration, I had the opportunity to visit the Paranal Observatory in the Atacama desert in Chile. My host was Professor Massimo Tarenghi, who orchestrated the design, construction, first light, and full operation of the VLT (Very Large Telescope), which houses four 8.2 meter telescopes and four smaller meter-size telescopes, plus the architectural-award winning hotel, restaurant, and living quarters for the astronomers, staff, and guests, featured in the latest James Bond film, Quantum of Solace. After my appointed rounds in Santiago, Massimo and I flew two hours north to the dusty coastal town of Antofagasta, then drove two hours inland through the Atacama desert, one of the driest places on Earth, turning off the main (actually only) highway cutting north-south through this narrow strip of a country and onto the road that snakes up the mountain to this stunning cluster of buildings and domes. The long drive to and from Paranal gave us ample opportunity for reflective conversation.

When Massimo was fourteen he had a thriving stamp collection for which he was so dedicated that his grades collapsed, so his mom put the collection away and gave Massimo a book to read and told him it was time to get serious about learning. The book was on astronomy and he’s never looked back, coursing through his education at the University of Milan with a doctoral degree in theoretical astrophysics, completing his dissertation on gamma radiation from the core of the Milky Way galaxy. He then moved to Arizona where he participated in the first attempts to map the large-scale distribution of galaxies throughout the universe—those spidery/soap bubbly models of galaxy distribution you’ve seen on countless science shows. Massimo then returned to Europe to co-found the European Organization for Astronomy in the Southern Hemisphere (ESO) and began scouting for a location high enough and dry enough to look at the heavens.

Astronomers need height to get above atmospheric interference from wind, dust, smog, and pollutants, and especially water vapor, but it interferes with millimeter and submillimeter wavelengths on the electromagnetic spectrum. This is important because half the stars in galaxies are hidden behind intergalactic dust that makes them invisible to optical telescopes, all but blinding us to half the universe, plus organic molecules such as carbon and sugar are only detectable in the submillimeter wavelength, and it is here where the origins of life in space may occur. Enter Chile and the Atacama desert, the highest desert in the world where humidity hovers around 5% and it never rains. This place is truly in the middle of nowhere. It looks exactly like Mars, except it has a blue sky and a paved road. (Just Google Earth “Paranal Observatory” and you’ll see what I mean…or watch Quantum of Solace.)

How technologically sophisticated are these telescopes? The astronomers are not even allowed in the domes at night! These telescopes are so technically complicated that they are run by engineers trained to do nothing else. (Analogy: observing a solar eclipse from a Boeing 747 does not qualify you to fly a 747.) These telescopes are at least as complicated as a jumbo jet, with hundreds of computers that micro-adjust the mirrors and coordinate one, two, three, or even all four of the 8.2-meter telescopes at once. How big are these mirrors? The Hooker telescope at Mt. Wilson where Edwin Hubble discovered that the Milky Way galaxy is just one of billions of galaxies that are all expanding away from one another from a Big Bang origin is 100 inches in diameter. Each of the VLT mirrors are 8.2 meters, or 322.8 inches, over three times the size of the Hooker (increasing the resolution power of each one by orders of magnitude over what Hubble could see), and there’s four of them!

The photographs taken by these monsters are Saganesque in cosmic stir-worthiness. There are no eyepieces on these telescopes—the photons of light collected by the mirrors are focused on and collected by spectroscopes, CCD cameras, and other devices for analyzing the data that is then downloaded onto computers and reviewed by the astronomers in the warmth of a heated control room adjacent to the domes. But if they did put an eyepiece on one of these telescopes, and you pointed it at the moon where Apollo 11 landed 40 years ago, just before you were blinded by the light you would be able to see the bottom of the lunar landing module. Now that’s a telescope!

Since the man who organized, designed, implemented, and built this staggeringly marvelous monument to human reason, logic, and ingenuity was sitting next to me in the car during our hours of isolation traversing this Martian-like landscape, given my propensity to ask anyone and everyone the Big Questions in Life our conversation soon turned to matters theological. Before I knew it Professor Massimo Tarenghi—the very embodiment of a scientifically-savvy, rationally-calculating, steely-eyed logician—was telling me that he believes in God. And not just the gossamer-fleeting pantheist-like god of Einstein and Spinoza found in the wonders of the workings of nature, but Yahweh, the God of Abraham, and his son Jesus, who was, mysteriously, fully God and fully human, whom Professor Tarenghi believes came to earth to atone for our sins, was crucified and resurrected, and will one day return. Why would a man so solidly grounded in the material world of math, science, engineering, and technology also believe in something that is seemingly the very antithesis of scientism? Given his profession Massimo’s initial answer did not surprise me: as a professional astronomer he has been continually struck by the remarkable beauty and magnificent grandeur of the cosmos that, he confessed, both his reason and his intuition tell him could not have come about through natural forces alone. It was Immanuel Kant’s “starry heaves above” argument, which for Massimo consists primarily in the origins of the universe and the finely tuned properties of the laws of nature that give rise to stars, planets, life, and intelligence. (The Kant quote is inscribed on his tomb and comes from his section on The Moral Law in his 1788 book Critique of Practical Reason:

Two things fill the mind with ever new and increasing admiration and awe, the oftener and more steadily we reflect on them: the starry heavens above me and the moral law within me. I do not merely conjecture them and seek them as though obscured in darkness or in the transcendent region beyond my horizon: I see them before me, and I associate them directly with the consciousness of my own existence.

Since we had got on so well to this point I thought it not too impertinent to counter with the multiverse argument, noting that perhaps our bubble universe is just one among a near infinite number of bubble universes all with varying laws of nature, and thus by chance and the law of large numbers some will have properties that give rise to stars, planets, life and even intelligence. (Interestingly, Massimo is convinced that virtually every star we will be studying with the upcoming space-based and ground-based telescopes will have planets, and thus there is very likely intelligent life elsewhere in our galaxy; however, contrary to many of his fellow religionists, he does not believe that this will pose a threat to traditional theology or religion.) But Massimo was quick on the draw to gun down my riposte as pure speculation, barely distinguishable from his own assumption that a God outside of our space-time created our universe and the laws that gave rise to us.

Round and round we went until we arrived back to where we began (which is how most such debates go), with the conversation ending as all such conversations should, with two friends finding mutual respect for differing positions, agreeing to disagree because life is too short for anything less than an amicable dénouement. Oh, and by the way, at some point during our drive—probably when I asked him—Massimo mentioned that he was raised Catholic and is still a devout Catholic. Um.