March 12, 2026

101: Why is the Sky Blue & Speech Disfluency

1 hour 46 minutes

For episode 101, we're challenging ourselves to make a technically family friendly, swear free episode! Why is the sky blue? Well it turns out it took a lot of science to understand why! And what is speech disfluency? Well it's like... um... you'll see!

Images we Talk About:
Green Flash
Sunset

Timestamps:

(00:00:00) Intro

(00:06:43) Why is the Sky Blue

(00:54:28) Speech Disfluency

(01:40:45) Outro

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We also learn about:

StellarNet: A Brief History of the Sky’s Blueness
Blog: The bizarre myth that Ancient Greeks couldn't see blue
2023 Paper: Revisiting the question “Why is the sky blue?”
Wiki- John Tyndall
The Conversation: John Tyndall: the forgotten co‑founder of climate science
Wiki: Rayleigh Scattering
NASA: The Electromagnetic Spectrum
Scientific American: Mirages
IFL Science: Orange Sky
The Great Oxidation Event: How Cyanobacteria Changed Life
Royal Museums Greenwich: Why Is The Sky Blue
Mars in a Box: Martian Sunsets

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Wikipedia: Filler (linguistics)
Thought Co: Definitions and Examples of Filler Words
The Register: Why Do We Say Um?
Paper: Listeners' Uses of Um and Uh in Speech Comprehension
New York Times: So, Um, How Do You, Like, Stop Using Filler Words?
University of Colorado Paper: We, um, have, like, a problem
Guardian: Why Do People Say Like So Much?
NPR: Why Do We Say Um So Much?
BBC: Teen Slang
Paper: Fillers, Pauses and Placeholders
Cambridge: Hidden Use of Fillers
The British National Corpus 2014
Language Hat: The Mystery of Fillers
The Atlantic : “Men Say 'Uh' and Women Say 'Um'”
Language Log: Men and Women’s Use of Words
JStor: Filler Words and Floor Holders
THE CALIFORNIA STORY 1906 By Thomas A. Edison

...more