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The Serengeti Rules: The Quest to Discover How Life Works and Why It Matters

How does life work? How does nature produce the right numbers of zebras and lions on the African savanna, or fish in the ocean? How do our bodies produce the right numbers of cells in our organs and bloodstream? In The Serengeti Rules, award-winning biologist and author Sean B. Carroll tells the stories of the pioneering scientists who sought the answers to such simple yet profoundly important questions, and shows how their discoveries matter for our health and the health of the planet we depend upon.

One of the most important revelations about the natural world is that everything is regulated—there are rules that regulate the amount of every molecule in our bodies and rules that govern the numbers of every animal and plant in the wild. And the most surprising revelation about the rules that regulate life at such different scales is that they are remarkably similar—there is a common underlying logic of life. Carroll recounts how our deep knowledge of the rules and logic of the human body has spurred the advent of revolutionary life-saving medicines, and makes the compelling case that it is now time to use the Serengeti Rules to heal our ailing planet. Order The Serengeti Rules from Amazon.

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Michael Shermer on His Favorite Topics to Write About in Scientific American

About the Book

For fifteen years, bestselling author Michael Shermer has written a column in Scientific American magazine that synthesizes scientific concepts and theory for a general audience. His trademark combination of deep scientific understanding and entertaining writing style has thrilled his huge and devoted audience for years. Now, in SKE?TIC, seventy-five of these columns are available together for the first time; a welcome addition for his fans and a stimulating introduction for new readers.

Order the book from Shop Skeptic Buy Skeptic by Michael Shermer at Amazon Buy the Kindle edition of Skeptic by Michael Shermer at Amazon Buy Skeptic by Michael Shermer at Barnes & Noble Buy Skeptic by Michael Shermer at Indiebound Buy the Nook Edition of Skeptic by Michael Shermer at Barnes & Noble Buy the ebook edition of Skeptic by Michael Shermer at the Apple iBookstore Buy the Kobo Reader edition of Skeptic by Michael Shermer


An artist’s concept depicts an orbiting swarm of dusty comet fragments as a possible explanation for the unusual light signal of KIC 8462852. (by NASA/JPL-Caltech [Public domain], via Wikimedia Commons)

About this week’s feature

It’s possible that life exists outside of our solar system and that we may, one day, find it. The Internet has been abuzz with speculation that an alien megastructure orbiting the star KIC 8462852 is responsible for the star’s erratic flicker. Since scientists have yet to advance a convincing natural explanation, attention has turned to more tantalizing possibilities. In this week’s eSkeptic, Dr. George Michael discusses a number of theories that have been advanced to explain the anomalous activity of the star.

The Great ET Paradox: Why We are Likely to Find Them Before They Find Us

by George Michael

Despite over 50 years of effort, the Search for Extraterrestrial Intelligence (SETI) enterprise has yet to detect any telltale signs of sentient life beyond Earth. But exciting news of an anomalous star 1,400 light-years from Earth has raised new hopes that we are not alone in the galaxy after all. Using data collected by the Kepler space telescope, astronomers discovered that the distant star—KIC 8462852—flickers in an unusual way, as if some unknown celestial bodies were intermittently obscuring it. Of the roughly 150,000 stars within view of the Kepler telescope, KIC 8462852 is the only one that glimmers in this odd fashion.1 Since it has been observed over the past few years, KIC 8462852 has dimmed dramatically, at times dropping in brightness as much as 22 percent.2 Moreover, the recorded dips have not been regular, but uneven and unpredictable. Tabetha Boyajian announced these amazing findings that she and members of Planet Hunters—a citizen science program launched at Yale University—in a paper recently published in the Monthly Notices of the Royal Astronomical Society.3

A number of theories have been advanced to explain the anomalous activity of the star. Conceivably, the dips in light could be occasioned by an orbiting a planet, but even a Jupiter-sized planet would only dim this type of star by only 1 percent as it transited across. Furthermore, the irregular flickering associated with the star would not be consistent with a planet making a regular orbit, which would produce predictable dimming. Perhaps fragments from a planetary collision could be responsible for the dimming light, but such events are so rare that we would not expect Kepler to pick up such activity based on probabilities.4 Finally, the star could be surrounded by an accretion disk of dust and rubble that has not yet agglomerated into planets or been gobbled up by the star itself. Such an explanation would be convincing if the star was young, but KIC 8462852 appears to be mature. As Jason Wright, a professor of astronomy at Penn State University, noted, the star is moving too fast to have formed recently, as it fails to show any infrared signs of a big disk that would normally be associated with the material that could cause such dips in brightness.5

Because scientists have yet to advance a convincing natural explanation, attention has turned to more tantalizing possibilities. By far the most exciting is that an alien megastructure is responsible for blocking the light emitted by the star.6 After news of the star’s unusual features was released, SETI scientists quickly began using the Allen Telescope Array in California to examine radio emissions from the area of star for any signs of artificiality.

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Blake Smith
Taking a Shot at the Boot Hill Ghost

Blake Smith presents a possible solution to a 1996 photograph of a purported phantom cowboy rising from the grave.

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Detecting Baloney

Baloney Detection Kit Sandwich (Infographic) by Deanna and Skylar (High Tech High Media Arts, San Diego, CA)

The Baloney Detection Kit Sandwich (Infographic)

For a class project, a pair of 11th grade physics students created the infographic shown below, inspired by Michael Shermer’s Baloney Detection Kit: a 16-page booklet designed to hone your critical thinking skills.

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Wisdom of Harriet Hall

Top 10 Things to Know About Alternative Medicine

Harriet Hall M.D. discusses: alternative versus conventional medicine, flu fear mongering, chiropractic, vaccines and autism, placebo effect, diet, homeopathy, acupuncture, “natural remedies,” and detoxification.

FREE Video Series

Science Based Medicine vs. Alternative Medicine

Science Based Medicine vs. Alternative Medicine

Understanding the difference could save your life! In this superb 10-part video lecture series, Harriet Hall M.D., contrasts science-based medicine with so-called “complementary and alternative” methods.

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The Top 10 Weirdest Things

The Top Ten Strangest Beliefs

Michael Shermer has compiled a list of the top 10 strangest beliefs that he has encountered in his quarter century as a professional skeptic.

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Reality Check: How Science Deniers Threaten Our Future (paperback cover)

Who believes them? Why? How can you tell if they’re true?

What is a conspiracy theory, why do people believe in them, and can you tell the difference between a true conspiracy and a false one?

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The Science Behind Why People See Ghosts

The Science Behind Why People See Ghosts

Mind altering experiences are one of the foundations of widespread belief in the paranormal. But as skeptics are well aware, accepting them as reality can be dangerous…

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Top 10 Myths About Evolution

Top 10 Myths About Evolution (and how we know it really happened)

If humans came from apes, why aren’t apes evolving into humans? Find out in this pamphlet!

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Learn to be a Psychic in 10 Easy Lessons

Learn to do Psychic “Cold Reading” in 10
Easy Lessons

Psychic readings and fortunetelling are an ancient art — a combination of acting and psychological manipulation.

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