SGU Episode 842

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SGU Episode 842
August 28th 2021
842 Ant Nest.jpg
(brief caption for the episode icon)

SGU 841                      SGU 843

Skeptical Rogues
S: Steven Novella

B: Bob Novella

C: Cara Santa Maria

J: Jay Novella

E: Evan Bernstein


ES: Eugenie Scott, American physical anthropologist

Quote of the Week

There are no passengers on spaceship Earth. We are all crew.

Marshall McLuhan, Canadian philosopher

Download Podcast
Show Notes
Forum Discussion


Voice-over: You're listening to the Skeptics' Guide to the Universe, your escape to reality.

COVID-19 Update ()[edit]

News Items[edit]






(laughs) (laughter) (applause) [inaudible]

Ant Underground Cities ()[edit]

Food Allergy Myths ()[edit]

White Lady of Union Cemetery ()[edit]

Feng-Shui in Australia ()[edit]

Who's That Noisy? ()[edit]

New Noisy ()[edit]



Interview with Eugenie Scott (1:06:03)[edit]

Science or Fiction ()[edit]

Answer Item
Fiction Visible laser beam
Science Total artificial heart
Allosaurus a scavenger
Host Result
Steve swept
Rogue Guess
Visible laser beam
Visible laser beam
Visible laser beam
Visible laser beam

Voice-over: It's time for Science or Fiction.

Item #1: French scientists have developed a total artificial heart that changes its beating in response to changes in blood pressure and physical activity, with a study patient surviving more than two years with the device.[6]
Item #2: A new analysis of the theropod dinosaur, Allosaurus, the largest meat-eater of its time, concludes that it was likely a scavenger.[7]
Item #3: Physicists have developed a laser beam that is visible even in a vacuum and in the visible light spectrum.[8]

Bob’s Response[edit]

Jay’s Response[edit]

Cara’s Response[edit]

Evan’s Response[edit]

Steve Explains Item #1[edit]

Steve Explains Item #2[edit]

Steve Explains Item #3[edit]

Skeptical Quote of the Week ()[edit]

There are no passengers on spaceship Earth. We are all crew.
Marshall McLuhan (1911-1980), Canadian philosopher

Signoff/Announcements ()[edit]

S: —and until next week, this is your Skeptics' Guide to the Universe.

S: Skeptics' Guide to the Universe is produced by SGU Productions, dedicated to promoting science and critical thinking. For more information, visit us at Send your questions to And, if you would like to support the show and all the work that we do, go to and consider becoming a patron and becoming part of the SGU community. Our listeners and supporters are what make SGU possible.


Today I Learned[edit]

  • Fact/Description, possibly with an article reference[9]
  • Fact/Description
  • Fact/Description




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