SGU Episode 980: Difference between revisions

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[[File:980 us utility pole.jpg|right|300px|thumb|A typical utility pole in North America, showing the hardware for a residential 120/240V split phase service drop. <span class="mw-customtoggle-myDivision"><u>Click for a list of the labeled parts</u></span>
[[File:980 us utility pole.jpg|right|200px|thumb|A typical utility pole in North America, showing the hardware for a residential 120/240V split phase service drop. <span class="mw-customtoggle-myDivision"><u>Click for a list of the labeled parts</u></span>
<div class="mw-collapsible mw-collapsed" id="mw-customcollapsible-myDivision"><p style="line-height:100%">A,B,C - The high voltage primary distribution wires; power is transmitted using the three phase system with 3 wires carrying 60 Hz alternating current with phases 120° apart. The wires are supported by standoff insulators on the crossarm, to which they are tied with tie wires.
<div class="mw-collapsible mw-collapsed" id="mw-customcollapsible-myDivision"><p style="line-height:100%">A,B,C - The high voltage primary distribution wires; power is transmitted using the three phase system with 3 wires carrying 60 Hz alternating current with phases 120° apart. The wires are supported by standoff insulators on the crossarm, to which they are tied with tie wires.
<br>D - The neutral wire, which is grounded. This is a "Y" connected distribution line, with the distribution transformers connected between a phase wire and this neutral wire.
<br>D - The neutral wire, which is grounded. This is a "Y" connected distribution line, with the distribution transformers connected between a phase wire and this neutral wire.

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SGU Episode 980
April 20th 2024
980 Zombie Cicadas.jpg

"The cicada continues to participate in normal activities, like it would if it was healthy. It tries to mate, it flies around, it walks on plants. Yet, a third of its body has been replaced by fungus." [1]

SGU 979                      SGU 981

Skeptical Rogues
S: Steven Novella

B: Bob Novella

C: Cara Santa Maria

J: Jay Novella

E: Evan Bernstein

Quote of the Week

Actual science is the great accomplishment of mankind. The antidote to ignorance, superstition, religious zealotry, and nonsensical beliefs in general. An eclipse exemplifies, to even the lay-est of laypeople, just how advanced modern science is.

John Gruber, technology blogger

Links
Download Podcast
Show Notes
Forum Discussion


Introduction, eclipse reflections

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


verklempt[v 1]

Bob's curse broken (11:56)

What's the Word? (18:21)

News Items

S:

B:

C:

J:

E:

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

New Scams (23:17)

Reconductoring (38:04)


A typical utility pole in North America, showing the hardware for a residential 120/240V split phase service drop. Click for a list of the labeled parts

A,B,C - The high voltage primary distribution wires; power is transmitted using the three phase system with 3 wires carrying 60 Hz alternating current with phases 120° apart. The wires are supported by standoff insulators on the crossarm, to which they are tied with tie wires.
D - The neutral wire, which is grounded. This is a "Y" connected distribution line, with the distribution transformers connected between a phase wire and this neutral wire.
E - Fuse cutout which disconnects the transformer from the line in the event of an electrical fault. It can also be opened manually.
F - Lightning arrestor conducts voltage spikes due to lightning strikes and other transient events to ground.
G - Single phase distribution transformer. Its primary winding is connected between one of the phase wires and the neutral wire. Its secondary winding is 240V center tapped. The secondary voltage is brought out to the 3 bushings on the side, consists of two 120V phases and one neutral.
H - Ground wire from transformer case to neutral wire carries the return current from the primary winding.
J - "Triplex" service drop cable carries the secondary current to the residence. It consists of the two opposite 120V phase wires and the neutral, which supports the cable.
K - Communications cables, consisting of a telephone and two cable television lines.

ISS Space Junk Crashed Through Home (57:26)

Zombie Cicadas (1:05:40)

Death by Wellness (1:13:56)

Who's That Noisy? (1:23:57)

Answer to previous Noisy:
An indri (one of the largest living lemurs)

New Noisy (1:29:14)

["Set" beep sound, loud fluttering, beep]

What this Noisy is

Announcements (1:29:37)

Questions/Emails/Corrections/Follow-ups (1:34:05)

Correction #1: AI Drug Development

[top]                        

Science or Fiction (1:35:13)

Item #1: A new economic study finds that by 2050 the economic loss of climate change will be about 19% of the global economy, or 38 trillion dollars ($38T) annually, even without further emissions.[6]
Item #2: Scientists have bioengineered a cultivar of corn that has orange stalks and leaves, to make weeding easier for robots.[7]
Item #3: Paleontologists have formally described the largest marine reptile, an ichthyosaur estimated at 25 meters, about the size of a blue whale.[8]

Answer Item
Fiction Weeding orange corn
Science Economic loss of climate change
Science
Largest marine reptile
Host Result
Steve swept
Rogue Guess
Evan
Weeding orange corn
Cara
Weeding orange corn
Bob
Weeding orange corn
Jay
Weeding orange corn

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

Evan's Response

Cara's Response

Bob's Response

Jay's Response

Steve Explains Item #1

Steve Explains Item #2

Steve Explains Item #3

Skeptical Quote of the Week (1:49:20)


Actual science is the great accomplishment of mankind. The antidote to ignorance, superstition, religious zealotry, and nonsensical beliefs in general. An eclipse exemplifies, to even the lay-est of laypeople, just how advanced modern science is.

 – John Gruber (1973-present), technology blogger, UI designer, and co-creator of the Markdown markup language


Signoff

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.

[top]                        

Today I Learned

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

References

Vocabulary

  1. Wiktionary: verklempt - Overcome with emotion, choked up.
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