Greetings,
Always something new in science. Scientists studying data from a ground-penetrating radar experiment, put into orbit around Mars by the European Space Agency, announced that a thin (<1 meter) layer of liquid water apparently exists that is 20 kilometers wide and 1.5 kilometers below Mars' surface. If true, the significance is twofold. First, because that aquifer might have never been frozen in the billions of years since it formed, it might harbour living microorganisms that might have evolved during Mars' early history when it had oceans. ("Might" is used thrice in that sentence.) Second significance: the money spent by the European Space Agency might have resulted in a remarkable discovery. ("Might" is used only once in that sentence.)
Water on Mars? Well, actually, water is found almost everywhere on the planet, it just happens to be ice. At the south pole, thousands of square kilometers of water ice are exposed and even more area is coated with "dry ice", frozen carbon dioxide. In places, the polar water ice is over 3 kilometers thick. NASA has created a
Schmoozing with Mars 7.23.18
As we journey around the sun, our orbit is not a perfect circle. Nor are the orbits of any of the other planets. They are all somewhat elliptical. As a result, depending on where we are in our orbit relative to other planets, sometimes we get closer to them than other times. Now is one of those times.
On July 31, Earth will be closer to Mars than it has been in over a decade, less than 36 million miles. Get a great view of the Red Planet by attending one of the viewing parties being held by many of the local Astronomy Clubs. Events are also planned at Chabot Space and Science Center. While July 31 is THE day, given the distances involved, any day near the end of July will work.
There are eclipses and meteor showers coming up this summer too. The "Great American Eclipse" last August was fantastic, but the one this year will be of much longer. Unfortunately for us it won't be visible in the US.
There are lots of astronomy-related talks and events happening around the area and here are three picks:
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Shocking Acceptance of Woo on KQED
Submitted by adminI was driving on 580 as Mina Kim hosted KQED’s Forum last Thursday. It was so shocking i had to pull off and park in order to give it my whole and incredulous attention. As Ms. Kim explained to NPR listeners, “We are looking at the surge in popularity of Astrology, Tarot, other practices, focusing on the magical, the inexplicable …”
Excuse us, Ms. Kim, but there ain’t anything magical or inexplicable to focus on. If indeed you know of anything “magical” or “inexplicable” there are scientists and doctors eager to check it out with you.
Later i listened to the entire hour-long podcast at www.kqed.org/forum and heard Mina Kim’s introduction:In this hour we are going to look at the surge in popularity of astrology, tarot, herbalism and other practices focusing on the supernatural. Why young people seem particularly drawn to them. What’s driving the resurgence now? Companies have taken notice, perhaps you see more rose quartz in your home (indistinct) catalog. But we want hear from you as well. Do you use astrology, herbs, crystals, or tarot in your daily life and how or why?
This seems innocent enough, almost. We might expect the hour to include a sociologist, a psychologist, and maybe even a journalist. Well, we did get the journalist, Julie Beck who
The Human Drive to Explain
Submitted by Tucker Hiatt(a SkepTalk by Tania
Tania Lombrozo, Phd Lombrozo, PhD, presented 8 February)Stephen J. Gould described humans as “the primates who tell stories.” Psychologist Robyn Dawes took it one step further, arguing that we’re “the primates whose cognitive capacity shuts down in the absence of a story.” At BAS’s February SkepTalk, Dr. Tania Lombrozo, Professor of Psychology at UC Berkeley, asked: Why are we so...
motivated to find a good story or explanation? Is this tendency beneficial? And Dr. Lombrozo answered with insights that showed how our “drive to explain” itself explains some of the most remarkable human achievements, but also some of our failings.
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Neuroscience and the Great Questions
Submitted by David Almandsmith(Any errors in this account
Ransom Stephens are solely my fault - David Almandsmith)SkepTalk by Ransom Stephens PhD on 14 January 2018
This SkepTalk combined science, mirth, and intellectual acumen; a genuine treat. Dr. Stephens brought the audience up to date with fruits of neuroscience research and melded them with an evolutionary perspective.
Dr. Stephens began by pointing out that neuroscience in some sense is self-referential - a case of the brain trying to understand itself.
He then warned against over-simplified ideas such as strict roles for the left brain versus roles for the right brain. There are indeed some differences in roles but...
there is some overlap in duties, especially since the brain evinces considerable plasticity. In the most general case, when you walk into a bar (!) the right brain checks for the unexpected - an acquaintance, a hungry leopard, etc. - without 'you' necessarily aware of the search. Any significant results of the search are passed off to the left brain and into your consciousness. Sort of. Neuroscience
Fundraising Campaign for Skeptic Britt Hermes
Submitted by Greg DoraisBritt Hermes is an
Britt HermesAmerican, a former naturopath, a noted skeptical campaigner, and a PhD student studying in Germany. She has spent much time and effort lately in campaigning against naturopathic practices. She is the author of the blog Naturopathic Diaries.She has now been taken to court in Germany by U.S.A.-based naturopath ‘Dr’ Colleen Huber, who is claiming that Britt has defamed her. Huber is an outspoken critic of chemotherapy and radiation therapy in cancer treatment. Instead, she uses ‘natural’ therapies that include intravenous infusions of vitamin C and baking soda.
For this reason, Australian Skeptics Inc is managing a fundraising campaign to assist Britt in her current legal action.
[Editor: To consider helping Ms. Hermes, please read Fundraising Campaign for Britt Hermes.]
Top Ten Myths of Homelessness
Submitted by David AlmandsmithA SkepTalk by Carrie Ellen Sager, J.D., Homelessness Program Coordinator, Marin County
14 December 2017
An upbeat talk on homelessness? Well, the problem of homelessness in the Bay Area may border on intractability and underscores the failures of United States' political economics, but Ms. Sager's message, pace, tone, and even her smile made this a lively, enjoyable SkepTalk.
She organized her description of the challenges and successes of Marin County's homeless program by...
using false statements concerning homelessness and then debunking those statements using the results of dozens of peer-reviewed studies and using colorful anecdotes from the frontlines. A number of the false statements were ones that i thought were true before Ms. Sager tore them apart with data from recent research.
An example: "(most of) These people aren't from here, they just come for the services (and the weather)." The facts show differently. In Alameda County, 82% of homeless were living in Alameda County immediately prior to losing a place to dwell. In Marin County, 72%. In San Francisco, 69%. It takes
Just One Drop of Pseudoscience
Submitted by Jay DiamondOn Thursday, October 11, 2017, Dr. Eugenie Scott and I scoped out the pro-Homeopathy movie "Just One Drop" at the Mill Valley Film Festival (MVFF). There was another showing on the following Saturday and one of our goals was to determine whether a public protest was warranted. We’d previously crafted and sent a letter (via both e-mail and snail mail) to the Executive Director of the film festival expressing our concern but did not receive a response.
Just One Drop: Poster for the pro-homeopathy Film "Just One Drop"The movie is what we expected, although better produced (it took 8 years to make). The narrative goes something like this:
- Nobody knows how homeopathy works.
- There are skeptics.
- But it works, and we’ll prove this with some anecdotes.
- It’s been around for a long time and many people us
If you're over 30, the name Erin Brokavich likely conjures up images of a working-class hero, fighting for the cancer-ridden little guys against a
Erin Brokavich (2000)corrupt multi-billion dollar corporation and winning millions for them.Anyone who saw the eponymous film starring Julia Roberts and Albert Finny was likely wiping away joyful tears by the end, satisfied that the little guys had gotten justice because of this brave woman (who wasn't even a lawyer!). I count myself among the acolytes in those early years after the film's release. Since then, I've gotten new data. As a result, I've changed my mind....
The first person I ever heard question the Brokavich hero narrative was Michael Shermer in his book, Science Friction. In it, Shermer points out that it's highly statistically probab
