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Readers’ wildlife photos

Why Evolution is True Feed - Sun, 10/20/2024 - 6:15am

Today we have another batch of Hawaiian bird photos (part 3 of 4) taken by biologist John Avise. John’s captions are indented, and you can enlarge his photos by clicking on them.

Birds in Hawaii, Part 3 

This week we again continue our photographic journey into native and introduced bird species that might be seen on a natural-history tour of the Hawaiian Islands.

Mallard (Anas platyrhynchos) (native to temperate North America and Eurasia, but introduced widely around the world), hen with duckling:

Laysan Duck pair (Anas laysanensis)(endemic to the Hawaiian Islands):

Northern Cardinal (Cardinalis cardinalis) (native to North America), male:

Northern Mockingbird (Mimus polyglottos) (native to North America):

Scaly-breasted Munia (Lonchura punctulata) (native to tropical Asia):

Pacific Golden Plover (Pluvialis fulva) (breeds in Alaska and Siberia, seen here on migration):

Pacific Golden Plover flying:

Red Junglefowl male (Gallus gallus) (native to South Asia, but domesticated and widely introduced):

Red Junglefowl hen:

Red Junglefowl chick:

Red-billed Tropicbird (Phaethon aethereus) (widespread in tropical oceans):

Red-billed Tropicbird flying:

Categories: Science

Their best solo performances: Stevie Nicks and Lindsey Buckingham

Why Evolution is True Feed - Sat, 10/19/2024 - 1:03pm

I am certain I posted both of these songs before, but I was just listening to “Big Love “  by Lindsey Buckingham and performed by him beside Fleetwood Mac in The Dance tour and album; and I thought I would pair that one with what I see as the best solo by his erstwhile bandmate and partner Stevie Nicks.  Both wrote their songs and both sing them here solo.

Apparently Nicks was doing a photo session for Rolling Stone in 1981, and the soundtrack for “Wild Heart” was playing in the background as she was made up. She began an impromptu version of the song, which is a gazillion times better than the recorded version. Her sister-in-law Lori Perry-Nicks comes in on harmony. Nicks could not stop herself from singing.

From Wikipedia:

The video was recorded during a Rolling Stone photo shoot in 1981. It starts with Nicks singing a rendition of “Love in Store“, a song by Fleetwood Mac’s Christine McVie. The video ends with a version of McVie’s “Wish You Were Here”. The video has been viewed over a million times on YouTube.  The backing music was written by Lindsey Buckingham found in a demo which can also be found on YouTube. It can also be found on the “Deluxe” 2016 reissue of Fleetwood Mac’s Mirage album, as a track titled “Suma’s Walk”.

This is one of the best performances from a great singer and may be the best impromptu rock solo I know of.

And Buckingham, underrated as a guitarist, producing a lot of sound. He won the trifecta of musicianship: a great singer, a great songwriter, and a great instrumentalist.

Happy Saturday.

Well, I decided to add this one, too: the best song featuring just the two of them. Written by Nicks, it mesmerized me the first time I heard it.  How callous of Rolling Stone to say this about it (from Wikipedia):

In a contemporary review, Rolling Stone wrote that Nicks seemed “lost and out of place” on “Landslide” and that her voice sounded “callow and mannered.”

If ever a musical judgment was wrong, it was this one.

As he so often did, Buckingham performed on an acoustic guitar without a pick, just using his fingers.

Categories: Science

New Simulation Will Help Future Missions Collect Moon Dust

Universe Today Feed - Sat, 10/19/2024 - 11:43am

In this decade and the next, multiple space agencies will send crewed missions to the Moon for the first time since the Apollo Era. These missions will culminate in the creation of permanent lunar infrastructure, including habitats, using local resources – aka. In-situ resource utilization (ISRU). This will include lunar regolith, which robots equipped with additive manufacturing (3D printing) will use to fashion building materials. These operations will leverage advances in teleoperation, where controllers on Earth will remotely operate robots on the lunar surface.

According to new research by scientists at the University of Bristol, the technology is one step closer to realization. Through a virtual simulation, the team completed a sample collection task and sent commands to a robot that mimicked the simulation’s actions in real life. Meanwhile, the team monitored the simulation without requiring live camera streams, which are subject to a communications lag on the Moon. This project effectively demonstrates that the team’s method is well-suited for teleoperations on the lunar surface.

As part of NASA’s Artemis Program, the ESA’s Moon Village, and the Chinese Lunar Exploration Program (Chang’e), space agencies, research institutes, and commercial space companies are researching how to extract valuable resources from lunar regolith (aka. moon dust). These include water and oxygen, which can be used to provide for astronauts’ basic needs and create liquid hydrogen and oxygen propellant. Remote handling of regolith will be essential to these activities since moon dust is abrasive, electrostatically charged, and difficult to handle.

The teleoperated robot used by the research team from the University of Bristol (1 of 2) Credit: Joe Louca

The team was comprised of researchers from the University of Bristol’s School of Engineering Mathematics and Technology, who carried out the experiment at the European Space Agency’s European Centre for Space Applications and Telecommunications (ESA-ESCAT) in Harwell, UK. The study that describes their experiment was presented at the 2024 International Conference on Intelligent Robots and Systems (IROS 2024) in Dubai and was published in the research journal run by the Institute of Electrical and Electronics Engineers (IEEE).

As lead author Joe Louca, a Doctor of Philosophy at Bristol’s School of Engineering Mathematics and Technology, explained:

“One option could be to have astronauts use this simulation to prepare for upcoming lunar exploration missions. We can adjust how strong gravity is in this model, and provide haptic feedback, so we could give astronauts a sense of how Moon dust would feel and behave in lunar conditions – which has a sixth of the gravitational pull of the Earth’s. This simulation could also help us to operate lunar robots remotely from Earth, avoiding the problem of signal delays.”

The virtual model the team created could also reduce the costs associated with the development of lunar robots for institutes and companies researching the technology. Traditionally, experiments involving lunar construction have required the creation of simulants with the same properties as regolith and access to advanced facilities. Instead, developers can use this simulation to conduct initial tests on their systems without incurring these expensive costs.

The teleoperated robot used by the research team from the University of Bristol (2 of 2) Credit: Joe Louca

Looking ahead, the team plans to investigate the potential non-technical barriers of this technology. This will include how people interact with this system, where communications suffer a roundtrip delay of 5 to 14 seconds. This is expected for the Artemis missions, as opposed to the 3-second delay experienced by the Apollo missions due to increased delays in the Deep Space Network (DSN). Said Louca:

“The model predicted the outcome of a regolith simulant scooping task with sufficient accuracy to be considered effective and trustworthy 100% and 92.5% of the time. In the next decade, we’re going to see several crewed and uncrewed missions to the Moon, such as NASA’s Artemis program and China’s Chang’e program. This simulation could be a valuable tool to support preparation or operation for these missions.”

Further Reading: University of Bristol

The post New Simulation Will Help Future Missions Collect Moon Dust appeared first on Universe Today.

Categories: Science

The Skeptics Guide #1006 - Oct 19 2024

Skeptics Guide to the Universe Feed - Sat, 10/19/2024 - 9:00am
Interview with Christian Hubicki; From TikTok: Fake Spacestation; News Items: AI Common Sense, Malnutrition in Africa, Latest Starship Launch, New Metasurface, Exomoon; Who's That Noisy; Your Questions and E-mails: Myopia; Science or Fiction
Categories: Skeptic

Neal Stephenson on Predicting the Metaverse, Crypto, and AI Decades Ahead

Skeptic.com feed - Sat, 10/19/2024 - 7:00am
https://traffic.libsyn.com/secure/sciencesalon/mss478_Neal_Stephenson_2024_10_18.mp3 Download MP3

Neal Stephenson is the #1 New York Times bestselling author of the novels Termination Shock, Fall; or, Dodge in Hell, Seveneves, Reamde, Anathem, The System of the World, The Confusion, Quicksilver, Cryptonomicon, The Diamond Age, Snow Crash, and Zodiac, and the groundbreaking nonfiction work In the Beginning … Was the Command Line. He is also the coauthor, with Nicole Galland, of The Rise and Fall of D.O.D.O. His works of speculative fiction have been variously categorized as science fiction, historical fiction, maximalism, cyberpunk, and post-cyberpunk. In his fiction, he explores fields such as mathematics, cryptography, philosophy, currency, and the history of science. Born in Fort Meade, Maryland (home of the NSA and the National Cryptologic Museum), Stephenson comes from a family comprising engineers and hard scientists he dubs “propeller heads.” He holds a degree in geography and physics from Boston University, where he spent a great deal of time on the university mainframe. He lives in Seattle, Washington. As The Atlantic has recently observed, “Perhaps no writer has been more clairvoyant about our current technological age than Neal Stephenson. His novels coined the term metaverse, laid the conceptual groundwork for cryptocurrency, and imagined a geoengineered planet. And nearly three decades before the release of ChatGPT, he presaged the current AI revolution.” His new novel is Polostan, the first installment in his Bomb Light cycle.

Shermer and Stephenson discuss:

  • How to write professionally
  • How to write science fiction and fantasy
  • How lives turn out: genes, environment and luck
  • How so much of history is contingent
  • No Hitler, No Atomic Bomb
  • How the bomb was developed and why
  • The ethics of dropping the bomb on Hiroshima and Nagasaki
  • The Hobbesian Trap, Security Dilemma, and the Other Guy Problem and the bomb
  • Mutual Assured Destruction and why it has worked (so far)
  • Cryptocurrency
  • AI, ChatGPT, and the Singularity
  • Mind uploading
  • Human evolution and the far future of humanity
  • What type of political and economic systems will we have on Mars?
  • Charles Sanders Peirce and the philosophy of Fallibilism
  • Platonic realism.

If you enjoy the podcast, please show your support by making a $5 or $10 monthly donation.

Categories: Critical Thinking, Skeptic

The Sun Has Reached Its Solar Maximum and it Could Last for One Year

Universe Today Feed - Fri, 10/18/2024 - 1:31pm

For most of human history, the Sun appeared stable. It was a stoic stellar presence, going about its business fusing hydrogen into helium beyond our awareness and helping Earth remain habitable. But in our modern technological age, that facade fell away.

We now know that the Sun is governed by its powerful magnetic fields, and as these fields cycle through their changes, the Sun becomes more active. Right now, according to NASA, the Sun is at its solar maximum, a time of increased activity.

Solar Maximum means pretty much what it sounds like. In this phase of the cycle, our star is exhibiting maximum activity. The Sun’s intense magnetic fields produce more sunspots and solar flares than at any other time in its 11-year cycle.

The Solar Maximum is all based on the Sun’s magnetic fields. These fields are measured in Gauss units, which describe magnetic flux density. The Sun’s poles measure about 1 to 2 gauss, but sunspots are much higher at about 3,000 gauss. (Earth is only 0.25 to 0.65 gauss at its surface.) Since the magnetic field is so much stronger where sunspots appear, they inhibit convective heating from deeper inside the Sun. As a result, sunspots appear as dark patches.

Sunspots are visual indicators of the Sun’s 11-year cycle. The National Oceanic and Atmospheric Administration and an international group called the Solar Cycle Prediction Panel watch sunspots to understand where the Sun is at in its cycle.

“During solar maximum, the number of sunspots, and therefore, the amount of solar activity, increases,” said Jamie Favors, director of the Space Weather Program at NASA Headquarters in Washington. “This increase in activity provides an exciting opportunity to learn about our closest star — but also causes real effects at Earth and throughout our solar system.”

The effects came into focus for many of us recently. In May 2024, the Sun launched multiple CMEs. As the magnetic fields and charged particles reached Earth, they triggered the strongest geomagnetic storm in 200 decades. These created colourful aurorae that were visible much further from the poles than usual. NASA says that these aurorae were likely among the strongest displays in the last 500 years.

Scientists know the Sun is at its solar maximum. But it lasts for an entire year. They won’t know when its activity peaks until after they’ve watched it for months and its activity has declined.

“This announcement doesn’t mean that this is the peak of solar activity we’ll see this solar cycle,” said Elsayed Talaat, director of space weather operations at NOAA. “While the Sun has reached the solar maximum period, the month that solar activity peaks on the Sun will not be identified for months or years.”

Each cycle is different, making it difficult to label peak solar activity. Different peaks have different durations and have higher or lower peaks than others.

Understanding the Sun’s cycle is important because it creates space weather. During solar maximum, the increased sunspots and flares also mean more coronal mass ejections (CMEs.) CMEs can strike Earth, and when they do, they can trigger aurorae and cause geomagnetic storms. CMEs, which are blobs of hot plasma, can also affect satellites, communications, and even electrical grids.

NASA’s Solar Dynamics Observatory captured these images of solar flares below, as seen in the bright flashes in the left image (May 8, 2024 flare) and the right image (May 7, 2024 flare). The image shows 131 angstrom light, a subset of extreme ultraviolet light that highlights the extremely hot material in flares and which is colourized in orange.

via GIPHY

During the solar maximum, the Sun produces an average of three CMEs every day, while it drops to one CME every five days during the solar minimum. The CMEs’ effect on satellites causes the most concern. In 2003, satellites experienced 70 different types of failures. The failures ranged from erroneous signals in a satellite’s electronics to the destruction of electrical components. The solar storm that occurred in 2003 was deemed responsible for 46 of those 70 failures.

CMEs are also a hazard for astronauts orbiting Earth. The increased radiation poses a health risk, and during storms, astronauts seek safety in the most shielded part of the ISS, Russia’s Zvezda Service Module.

Galileo and other astronomers noticed sunspots hundreds of years ago but didn’t know exactly what they were. In a 1612 pamphlet titled “Letters on Sunspots,” Galileo wrote ‘The sun, turning on its axis, carries them around without necessarily showing us the same spots, or in the same order, or having the same shape.’ This contrasted with others’ views on the spots, some of which suggested they were natural satellites of the Sun.

We’ve known about the Sun’s magnetic fields for 200 hundred years, though at first, scientists didn’t know the magnetism was coming from the Sun. In 1724, an English geophysicist noticed that his compass was behaving strangely and was deflected from magnetic north throughout the day. In 1882, other scientists correlated these magnetic effects with increased sunspots.

In recent decades, we’ve learned much more about our stellar companion thanks to spacecraft dedicated to studying it. NASA and the ESA launched the Solar and Heliospheric Observatory (SOHO) in 1995, and NASA launched the Solar Dynamics Observatory (SDO) in 2010. In 2011, we got our first 360-degree view of the Sun thanks to NASA’s two Solar TErrestrial RElations Observatory (STEREO) spacecraft. In 2019, NASA launched the Parker Solar Probe, which also happens to be humanity’s fastest spacecraft.

Our understanding of the Sun and its cycles is far more complete now. The current cycle, Cycle 25, is the 25th one since 1755.

This figure shows the number of sunspots over the previous twenty-four solar cycles. Scientists use sunspots to track solar cycle progress; the dark spots are associated with solar activity, often as the origins for giant explosions—such as solar flares or coronal mass ejections—that can spew light, energy, and solar material out into space. Image Credit: NOAA’s Space Weather Prediction Center

“Solar Cycle 25 sunspot activity has slightly exceeded expectations,” said Lisa Upton, co-chair of the Solar Cycle Prediction Panel and lead scientist at Southwest Research Institute in San Antonio, Texas. “However, despite seeing a few large storms, they aren’t larger than what we might expect during the maximum phase of the cycle.”

The most powerful flare so far in Cycle 25 was on October 3rd, when the Sun emitted an X9 class flare. But scientists anticipate more flares and activity to come. There can be significantly powerful storms even in the cycle’s declining phase, though they’re not as common.

On October 3, 2024, the Sun emitted a strong solar flare. As of this date, this solar flare is the largest of Solar Cycle 25 and is classified as an X9.0 flare. X-class denotes the most intense flares, while the number provides more information about its strength. NASA’s Solar Dynamics Observatory captured imagery of this solar flare – as seen in the bright flash in the center – on October 3, 2024. The image shows a blend of 171 Angstrom and 131 Angstrom light, subsets of extreme ultraviolet light.
Image Credit: NASA/SDO

The Sun’s 11-year cycle is just one of its cycles, nested in larger cycles. The Gleissberg cycle lasts between 80 to 90 years and modulates the 11-year cycle. The de Vries cycle or Suess cycle lasts between 200 and 210 years, and the Hallstatt cycle lasts about 2,300 years. Both of these cycles contribute to long-term solar variation.

However, even with all we know about the Sun, there are big gaps in our knowledge. The Sun’s magnetic poles switch during the 11-year cycle, and scientists aren’t sure why.

There’s a lot more to learn about the Sun, but we won’t run out of time to study it any time soon. It’s in the middle of its 10-billion-year lifetime and will be a main-sequence star for another five billion years.

The post The Sun Has Reached Its Solar Maximum and it Could Last for One Year appeared first on Universe Today.

Categories: Science

Finding could help turn trees into affordable, greener industrial chemicals

Matter and energy from Science Daily Feed - Fri, 10/18/2024 - 1:25pm
Specific molecular property of lignin in trees determines difficulty of using microbial fermentation to turn trees and other plants into industrial chemicals.
Categories: Science

Professor tackles graph mining challenges with new algorithm

Matter and energy from Science Daily Feed - Fri, 10/18/2024 - 1:25pm
A professor has helped create a powerful new algorithm that uncovers hidden patterns in complex networks, with potential uses in fraud detection, biology and knowledge discovery.
Categories: Science

Professor tackles graph mining challenges with new algorithm

Computers and Math from Science Daily Feed - Fri, 10/18/2024 - 1:25pm
A professor has helped create a powerful new algorithm that uncovers hidden patterns in complex networks, with potential uses in fraud detection, biology and knowledge discovery.
Categories: Science

Check Out This Sneak Peek of the Euclid mission’s Cosmic Atlas

Universe Today Feed - Fri, 10/18/2024 - 12:12pm

On July 1st, 2023 (Canada Day!), the ESA’s Euclid mission lifted off from Cape Canaveral, Florida, atop a SpaceX Falcon 9 rocket. As part of the ESA’s Cosmic Vision Programme, the purpose of this medium-class mission was to observe the “Dark Universe.” This will consist of observing billions of galaxies up to 10 billion light-years away to create the most extensive 3D map of the Universe ever created. This map will allow astronomers and cosmologists to trace the evolution of the cosmos, helping to resolve the mysteries of Dark Matter and Dark Energy.

The first images captured by Euclid were released by the ESA in November 2023 and May 2024, which provided a glimpse at their quality. On October 15th, 2024, the first piece of Euclid‘s great map of the Universe was revealed at the International Astronautical Congress (IAC) in Milan. This 208-gigapixel mosaic contains 260 observations made between March 25th and April 8th, 2024, and provides detailed imagery of millions of stars and galaxies. This mosaic accounts for just 1% of the wide survey that Euclid will cover over its six-year mission and provides a sneak peek at what the final map will look like.

The IAC 2024 session, which took place from October 14th – 18th in Milan, was the 75th annual meeting of the Congress. The session welcomed over 8,000 experts from space agencies, the research sector, and the space industry to come together and discuss the use of space to support sustainability. The mosaic, presented by ESA Director General Josef Aschbacher and Director of Science Carole Mundell during the event, contains about 100 million sources, including stars in our Milky Way and galaxies beyond.

The main objective of the Euclid mission is to measure the hidden influence of Dark Matter and Dark Energy on the Universe. These will hopefully resolve questions that astronomers have been dealing with for decades. It all began in the 1960s when astronomers noted that the rotational curves of galaxies did not agree with the observed amounts of matter they contained. This led to speculation that there must be a mysterious, invisible mass that optical telescopes could not account for (aka. Dark Matter).

By the 1990s, thanks to observations made by the venerable Hubble Space Telescope, astronomers also noticed that the rate at which the Universe has been expanding (the Hubble-Lemaitre Constant) was accelerating with time. By observing the shapes, distances, and motions of billions of galaxies, Euclid‘s 3D map will provide the most accurate estimates of galactic masses and cosmic expansion over the past 10 billion years. Zooming very deep into the mosaic (see image below), the intricate structure of the Milky Way can be seen, as well as many galaxies beyond.

Another interesting feature is what looks like clouds between the stars in our galaxy, which appear light blue against the background of space. This is the gas and dust of the interstellar medium (ISM), which is known on a galactic scale as the “galactic cirrus” (because of its resemblance to clouds). Euclid‘s super-sensitive optical camera—the VISible instrument (VIS), composed of 36 charged-coupled devices (CCDs) with 4000 x 4000 pixels each—can see these clouds as they reflect optical light from the Milky Way. Said Euclid Project Scientist Valeria Pettorino in an ESA press release.

“This stunning image is the first piece of a map that, in six years, will reveal more than one-third of the sky. This is just 1% of the map, and yet it is full of a variety of sources that will help scientists discover new ways to describe the Universe.”

This graphic provides an overview of the mosaic and zoomed-in images released by ESA’s Euclid mission on October 15th, 2024. Credit: ESA/Euclid/Euclid Consortium/NASA/CEA Paris-Saclay/J.-C. Cuillandre, E. Bertin, G. Anselmi

As noted, the mosaic shows only 1% of what Euclid will observe during the course of its six-year mission. In just two weeks, the observatory covered 132 square degrees of the Southern Sky in pristine detail (more than 500 times the area of the full Moon). Since the mission began routine science observations in February, 12% of the survey has been completed. By March 2025, the ESA will release 53 square degrees of the survey, including a preview of the Euclid Deep Field areas. This will be followed by the release of the first year of cosmology data sometime in 2026.

The Euclid Consortium (EC) consists of more than 2000 scientists from 300 institutes in Europe, the USA, Canada, and Japan and is responsible for providing the mission’s instruments and data analysis.

Further Reading: ESA

The post Check Out This Sneak Peek of the Euclid mission’s Cosmic Atlas appeared first on Universe Today.

Categories: Science

Indestructible quantum rifts can exist in two places at once

New Scientist Feed - Fri, 10/18/2024 - 12:00pm
Researchers used a collection of charged atoms to create a quantum superposition of an exotic type of defect
Categories: Science

The world’s longest truck

Why Evolution is True Feed - Fri, 10/18/2024 - 11:35am

It’s Friday, and you may have noticed that I haven’t done a lot of braining lately, and put up virtually no science posts. That’s because I am going through another bout of insomnia (it’s now five nights since I had a decent sleep), and it’s hard to concentrate on anything. So bear with me; I do my best. Instead of something intellectual, science-y, or literary this Friday, have a look at the world’s longest truck.

It’s in Australia, of course, where there are long stretches of straight road that can be navigated by “road trains”.

Categories: Science

Boosting brainwaves in sleep improves rats’ memory

New Scientist Feed - Fri, 10/18/2024 - 11:00am
Rats perform better on memory tests when certain brainwave-producing neurons are stimulated while they sleep. If we can boost these brainwaves in people, it could help treat memory impairments in those with dementia
Categories: Science

New strategy unlocks magnetic switching with hydrogen bonding at molecular level

Matter and energy from Science Daily Feed - Fri, 10/18/2024 - 10:12am
A research team has successfully developed a new approach to create switchable magnetic materials by using hydrogen bonding at the molecular level. This groundbreaking study shows how certain metal complexes, previously unresponsive to external stimuli, can now exhibit sharp and complete magnetic transitions by introducing chiral hydrogen bonds.
Categories: Science

Neutron stars may be shrouded in axions

Matter and energy from Science Daily Feed - Fri, 10/18/2024 - 10:12am
Physicists have shown that extremely light particles known as axions may occur in large clouds around neutron stars. These axions could form an explanation for the elusive dark matter that cosmologists search for -- and moreover, they might not be too difficult to observe.
Categories: Science

Neutron stars may be shrouded in axions

Space and time from Science Daily Feed - Fri, 10/18/2024 - 10:12am
Physicists have shown that extremely light particles known as axions may occur in large clouds around neutron stars. These axions could form an explanation for the elusive dark matter that cosmologists search for -- and moreover, they might not be too difficult to observe.
Categories: Science

Folklore uncovers a tsunami that rocked Hawaii hundreds of years ago

New Scientist Feed - Fri, 10/18/2024 - 10:00am
A story passed down in folklore led scientists to evidence of an 8-metre tsunami that hit an island in Hawaii hundreds of years ago
Categories: Science

Known Knowns

Skeptic.com feed - Fri, 10/18/2024 - 10:00am

A review of Informatica: Mastering Information Through the Ages by Alex Wright (2023) and Knowing What We Know: The Transmission of Knowledge, From Ancient Wisdom to Modern Magic by Simon Winchester (2023)

Can the history of how humans organize knowledge help us understand 21st century information overload? Two readable new books help us address these questions with interdisciplinary narratives: Knowing What We Know: The Transmission of Knowledge: From Ancient Wisdom to Modern Magic by Simon Winchester, and Informatica: Mastering Information Through the Ages by Alex Wright.

To varying degrees and slightly different ways, both books review the history of information technologies as a helpful tool. Both cover the familiar chronology from the clay tablets and papyrus scrolls of ancient times, monks in the Middle Ages copying texts in their scriptoria, the 15th and 19th century technologies that made books cheaper and more common, the development of reference books, and the mid-20th century innovations leading to modern computers and World Wide Web. Both books are also stimulatingly interdisciplinary, discussing many more historical topics than I’ve mentioned above, but also grounded in science and technology. After these similarities, the books diverge.

Cuneiform tablet
Mesopotamia, circa 31 CE

Although Knowing What We Know is rich in history, it is not chronological. It instead progresses from the learning of information (education) to the storing of knowledge (museums, libraries, and encyclopedias), and then to the dissemination of knowledge, concluding in thoughtful discussion of the implication of new technologies, such as the AI-based Large Language Models (LLMs). These topics are corralled by Winchester’s background in journalism, and the grounding of each topic in precise examples.

On education, for example, Winchester contrasts three striking 21st century cases. He vividly recalls the woman he interviewed who started a school in a poverty-stricken village in India. Those students’ joyous thirst for knowledge is contrasted against the high-tension stakes in China, where a single exam taken in students’ teenage years determines their job opportunities for the rest of their lives. Winchester’s third example of education is the most striking—that of an illiterate island group whose oral storytelling tradition saved them, alone, from a tsunami.

Winchester progresses to knowledge summarized in encyclopedias, recalling his own love of them in his youth and summarizes the rise and cessation of the leading print encyclopedia of the 19th and 20th century, Encyclopedia Britannica. How can complex issues about the leading online encyclopedia Wikipedia, with its vast size and reliability, be better illustrated than by Winchester’s own experience late in his research seeing there that a pioneer of internet technology was listed as having died, the correction of which Winchester learned the next morning on social media?

And so it goes: Winchester focuses on a few extraordinary cases to illustrate each of his points. For the preservation of knowledge in museums, it is the remarkable story of the saving of museum treasures in China during political turmoil, and how the Chinese government has viewed this precious collection. Similarly, the rise of mass media is illustrated by the BBC because, Winchester notes, its style was influential in the development of radio news around the world. This flows naturally to the following chapter’s discussion of propaganda, focusing on the chilling example of the Nazis. His penultimate chapter is about polymaths and, finally, wisdom, focusing less on religion than on whether it was wise to drop the atomic bombs in 1945. The book concludes with the implications of ChatGPT and other new technology for our brains.

Winchester has a remarkable ability to turn what could be a dry recitation of facts into a series of compelling stories, with numbered subsections in each chapter. The one time I felt that he could have used a copy editor was during his overly long digression on Krakatoa, the subject of one of his previous books, though he did make even this topic surprisingly relevant. In his hands, such meandering is usually done masterfully.

Like a well-structured novel, all that came before leads Winchester to his conclusion. His fear is that technology, as currently progressing, can hurt our ability to think for ourselves. Characteristically, he illustrates this with a specific example: the complex skill set he stumbled through when his small boat needed to navigate toward land rather than be lost in the ocean in the days prior to GPS. Can people even read maps anymore? In one of the book’s few missed opportunities, he does not draw an extended parallel to the people who (accurately) decried in Gutenberg’s era that if books were mass produced, people’s ability to remember vast amounts of knowledge would decline, which it did (the skill of modern mnemonists, such as the late Harry Lorrayne, notwithstanding).

If Winchester’s book is grounded in concise case studies, Wright’s contributions in Informatica are science and the history of structured systems for organizing knowledge. These merge when Wright discusses the biological classification scheme developed primarily by Carl Linnaeus, including an amusing anecdote involving Thomas Jefferson mailing the decaying body of a moose to acclaimed scientific theorist Comte de Buffon. Although science is mentioned several times in Winchester’s Knowing, Alex Wright’s Informatica opens with it, following the late biologist E.O. Wilson in speculating about the biological role of epigenetics in human knowledge transmission. Wright compares “networks and hierarchies” in the natural and the human worlds. He sees parallels between creations by groups that are unlikely to have communicated, such as the similarity between the plant taxonomies created by Western scholars and those formed through oral tradition in other societies.

Using more traditional evidence, Wright explicitly links the Linnaean classification scheme to the development of librarians’ attempts to organize books, culminating in the Dewey Decimal System at the turn of the 20th century. He appropriately refers to this 19th century arc as “the industrial library,” the creation of more elaborate organizational schemes being demanded by vastly increased numbers of published books, which was in turn allowed by new technology.

Successive chapters discuss early to mid-20th century utopian information sharing projects using then-existing technology, including index cards and telegraphy, or the briefly famous Mundaneum (an institution that aimed to gather together all the world’s knowledge and classify it according to a system called the Universal Decimal Classification). In Informatica, Wright’s discussion of these utopian schemes does not flow as well as it could, the reader being left to make the connections.

Worse, Wright’s extended history of the developments leading to the modern internet is shoehorned into a subsection of the revised “Web That Wasn’t” chapter as “The Web That Was.” This combination of topics in the same chapter was tenable in Glut, but in Informatica the subsection discusses so many people and inventions, all of whose work made the World Wide Web possible, that it should have been a new chapter. Finally, Wright recycled some of his earlier writing and did not update it, such as referring to CD-Roms and America Online (AOL) as leading technologies. This could have been fixed easily.

That said, the narrative in Informatica is more clearly chronological than in Knowing What We Know, but Simon Winchester is so skilled a writer that his book is generally a smoother narrative despite being more episodic. Except in the book’s outline: I was halfway through the book before realizing that its main chapters had a logically progressive sequence to them, from data acquisition to information display to the uses of knowledge and finally to wisdom. Winchester could have made this clearer earlier in the book with just a few words.

One side topic bears noting: Winchester said in at least two media interviews that his discussion of the racism found in a leading mid-century encyclopedia was edited out of the published version of Knowing What We Know, on the grounds that it would be too controversial or offend too many of his readers. Perhaps it would have, but its inclusion would have been valuable, partly for highlighting the important point that even the most well-respected reference materials can be wrong. While it can be argued that this is excusable because Knowing is not written by an academic scholar, a similar edit was also made in a book by Yale historian Beverly Gage, G-Man, (which I reviewed in an earlier issue of Skeptic), with pages 62–63 twice leading the reader to guess, but never know for sure, which apparently offensive word is represented. The criticism that only elite scholars know about the history of racism will become a self-fulfilling prophecy if that history is not included in popular books.

This article appeared in Skeptic magazine 29.3
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On the other hand, Informatica and Knowing What We Know both have problems with the wording of their titles, and with such vast topics, it would be easy to quibble with decisions on which topics to focus. I wonder if Informatica’s new title could make readers think they are getting a wholly different book, rather than an update of Glut (originally published in 2007), with uneven revisions and only a chapter’s worth of new material? In Knowing What We Know, it’s the last third of the subtitle (“From Ancient Wisdom to Modern Magic”) that could mislead: in other cases, the phrase “Ancient Wisdom” has sometimes referred to religious traditions, but here seems to refer more to any ancient writing, and the book’s late discussion of wisdom is not primarily about religion.

The important point shared by Knowing What We Know and Informatica is that greater access to information also presents challenges. Informatica is more theoretical and historical, Knowing being more a historically informed snapshot of our present. Both are stimulating and both are informative.

About the Author

Michelle Ainsworth holds an MA in History and she is currently researching the cultural history of stage magic in the United States. She is a humanist and lives in New York City.

Categories: Critical Thinking, Skeptic

Mathematicians have found a new way to identify prime numbers

New Scientist Feed - Fri, 10/18/2024 - 9:21am
The first breakthrough in finding prime numbers for over 25 years has mathematicians celebrating, with hopes that the techniques behind the new proof could further advance other areas of maths
Categories: Science

What I do before the ducks come

Why Evolution is True Feed - Fri, 10/18/2024 - 9:00am

I can’t resist helping wild animals, and the local squirrels are hoarding nuts for the winter. But it’s only the best for the squirrels around Botany Pond (there are three), who get very expensive pecans ($5.99 per pound). Over the past weeks, I’ve convinced them that I am not only not dangerous, but also a dispenser of nuts.  First they learned to take them from my hand, and now they’re crawling up my leg to take them. They bury nearly all of them, but that’s okay; they’ll need them in winter.

No, I haven’t been hurt, and I love the feel of their little claws as they put their hands on my fingers to gently take a nut. This one got at least four pecans today.

Photo by Marie:

Categories: Science

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