SGU Episode 801: Difference between revisions
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Latest revision as of 05:15, 22 October 2023
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This episode needs: transcription, time stamps, formatting, links, 'Today I Learned' list, categories, segment redirects. Please help out by contributing! |
How to Contribute |
| SGU Episode 801 |
|---|
| November 14th 2020 |
 |
| (brief caption for the episode icon) |
| Skeptical Rogues |
| S: Steven Novella |
B: Bob Novella |
C: Cara Santa Maria |
J: Jay Novella |
E: Evan Bernstein |
| Quote of the Week |
There's a certain comfort that comes from knowing a fact. The sun is up in the sky; there's nothing you can say that's going to change that. You can't say, "The sun's not up there, there's no sky." There is reality, and there's nothing wrong with accepting reality. It's when you try to distort reality, to maneuver it into accommodating your particular point of view, your particular bigotry, your particular whatever — that's when you run into problems. |
Alex Trebek, Canadian-American game show host |
| Links |
| Download Podcast |
| Show Notes |
| Forum Discussion |
Introduction[edit]
Voiceover: You're listening to the Skeptics' Guide to the Universe, your escape to reality.
COVID-19 Update ()[edit]
News Items[edit]
S:
B:
J:
E:
C:
(laughs)
(laughter)
(applause)
[inaudible]
3D Printing with Bacteria ()[edit]
"Pre-bunking" ()[edit]
Real Cause of Light Pollution ()[edit]
Physics Paradox Solved ()[edit]
New Nuclear Thermal Engines ()[edit]
Who's That Noisy? ()[edit]
- Answer to last week’s Noisy: Sounds from mushrooms' electric current[note 1]
New Noisy ()[edit]
[Whirring and crackling, then whirring and squeaking]
Questions/Emails/Corrections/Follow-ups ()[edit]
_consider_using_block_quotes_for_emails_read_aloud_in_this_segment_ with_reduced_spacing_for_long_chunks –
Follow-up #1: "Throwaway journals" ()[edit]
Science or Fiction ()[edit]
| Answer | Item |
|---|---|
| Fiction | Abandoned properties |
| Science | Mean thermal energy |
| Science | Once-mistaken pterosaurs |
| Host | Result |
|---|---|
| Steve | win |
| Rogue | Guess |
|---|---|
Jay | Mean thermal energy |
Cara | Abandoned properties |
Bob | Abandoned properties |
Evan | Abandoned properties |
Voiceover: It's time for Science or Fiction.
Item #1: Astronomers find that the mean thermal energy density of gases in the universe has been increasing, and is now 2 million Kelvin, 10 times hotter than 10 billion years ago.[6]
Item #2: A new study finds that programs which demolish abandoned properties reduces nearby crime rates.[7]
Item #3: A paleontology student has discovered that a fossil collection of ancient sharks in two UK museums are actually pterosaurs, including a previously unknown species.[8]
Jay's Response[edit]
Cara's Response[edit]
Bob's Response[edit]
Evan's Response[edit]
Steve Explains Item #3[edit]
Steve Explains Item #2[edit]
Steve Explains Item #1[edit]
Skeptical Quote of the Week ()[edit]
There's a certain comfort that comes from knowing a fact. The sun is up in the sky; there's nothing you can say that's going to change that. You can't say, "The sun's not up there, there's no sky." There is reality, and there's nothing wrong with accepting reality. It's when you try to distort reality, to maneuver it into accommodating your particular point of view, your particular bigotry, your particular whatever — that's when you run into problems.
– Alex Trebek (1940-2020), Canadian-American game show host
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 theskepticsguide.org. Send your questions to info@theskepticsguide.org. And, if you would like to support the show and all the work that we do, go to patreon.com/SkepticsGuide 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
Notes[edit]
- ↑ The Carbon Ladder YouTube video has these notes:
These sounds were produced by living fungi: Shitake mushrooms still attached to their mycelial bodies. A mushroom is actually the fruiting body of a fungus, the "body" of which consists of the mycelium, a network of root-like structures that run through substrate (the log, compost, sawdust, etc.). A mushroom still connected to a growing mycelium produces a varied and interesting rhythm, while a mushroom that has been picked produced only a static tone.
All living organisms produce a faint electrical current, which constantly fluctuates according to the state of the organism. This current can be amplified and used as a control signal for an oscillator, producing a sound which directly reflects the state of the organism.
For my installation "Ha, Ha! Your Mushrooms Have Gone?", fungi actively growing on their original substrate were housed in glass tanks, to preserve optimal humidity. Visitors to the installation were able to hear the sounds of different living fungal cultures, which changed as new specimens were brought in during the course of the work. The bioelectrical sounds from the fungi are switched on and off by infra-red sensors, in response to the movements of people in the room, allowing visitors to interact with the work. Perhaps the fungi also respond to the sonic vibrations in the room.
– Michael Prime
References[edit]
- ↑ Technology.org: Scientists use bacteria as micro-3D printers
- ↑ Neurologica: Pre-Bunking Game
- ↑ Universe Today: Most light pollution isn’t coming from streetlights
- ↑ Quanta Magazine: The Most Famous Paradox in Physics Nears Its End
- ↑ Popular Mechanics: The Thermal Nuclear Engine That Could Get Us to Mars in Just 3 Months
- ↑ ScienceDaily: The universe is getting hot, hot, hot, a new study suggests
- ↑ Housing Policy Debate: Does Demolition Lead to a Reduction in Nearby Crime Associated With Abandoned Properties?
- ↑ Phys.org: Fossil shark turns in to mystery pterosaur
- ↑ [url_for_TIL publication: title]
Vocabulary[edit]
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