Ask a Chemist: What is heavy water? (and other questions)
Question and Response #67
Melissa and Jam dive into a series of chemistry-related questions from their audience. From understanding why wintergreen mints spark in the dark to the science of pregnancy tests and heavy water, the episode covers a broad range of fascinating topics. They also discuss the role of moisturizers, dispel myths about chapstick, and explore the curious case of tumor-related hormones. Additionally, the hosts answer questions related to their educational resources and touch on the advantages of lifelong learning. Join them for an engaging discussion that satisfies both everyday curiosity and scientific intrigue.
00:00 Introduction and Greetings
00:33 Chemistry for Your Life Podcast Begins
00:52 Chemistry Support and Wired Videos
02:23 First Question: Fluorescence and Braces
07:26 Second Question: HCG and Tumors
10:57 Third Question: Heavy Water
12:39 Discussion on Heavy Water and Isotopes
18:06 Movie Reference: The Rookie
20:35 Formal Request: Watch Oppenheimer
21:39 Discussing Movies and Activities
21:59 The Vine and Oppenheimer
23:18 Film Photography Plans
24:07 Moisturizers and Dry Skin
25:53 Chapstick Myths
27:59 Teaching at UNT
30:55 Birdwatching and Lifelong Learning
34:08 Updating the Website
37:39 Resources for Educators
39:49 Closing Remarks and Acknowledgements
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Thanks to our monthly supporters
Vince W
Julie S.
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Chelsea M
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J0HNTR0Y
Jeannette N
Cullyn R
Erica B
Elizabeth P
Sarah M
Rachel R
Letila
Katrina B
Suzanne P
Venus R
Lyn S
Jacob T
Brian K
Emerson W
Kristina G
Timothy P
Steven B
Chris and Claire S
Chelsea B
Avishai B
Hunter R
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43:43
Why do airplanes make you gassy?
#211
Melissa and Jam delve into the chemistry behind increased flatulence on airplanes. They explore how changes in air pressure affect gas expansion in the human body, leading to more frequent gas release during flights. The discussion covers the physiology of high altitude flatus expulsion (HAFE), personal anecdotes, and practical advice for managing this phenomenon. Additionally, they touch on how airplane cabin air is regulated and hint at more topics related to airplane air quality in the next episode.
00:00 The Unpleasant Reality of Airplane Odors
01:02 Introducing the Chemistry Behind Airplane Gas
01:51 Meet the Hosts and Episode Dedication
02:30 Listener's Question: Why So Gassy on Flights?
03:47 Exploring Air Pressure and Gas Expansion
05:59 The Science of Airplane Cabin Pressure
15:02 Personal Stories and Practical Examples
18:15 Balancing Safety and Comfort in Airplane Cabin Pressure
19:33 The Impact of Carbon Filters on Airplane Seats
20:02 Personal Anecdotes: The Struggles of Holding in Gas
22:53 The Science Behind Gas Pain and Altitude Sickness
29:53 Travel Tips and Memorable Plane Stories
34:41 Wrapping Up and Listener Engagement
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References from this episode:
Thanks to our monthly supporters
Vince W
Julie S.
Heather R
Autoclave
Chelsea M
Dorien VD
Scott B
Jessie R
Ciara L
J0HNTR0Y
Jeannette N
Cullyn R
Erica B
Elizabeth P
Sarah M
Rachel R
Letila
Katrina B
Suzanne P
Venus R
Lyn S
Jacob T
Brian K
Emerson W
Kristina G
Timothy P
Steven B
Chris and Claire S
Chelsea B
Avishai B
Hunter R
★ Support this podcast on Patreon ★
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38:58
Chemistry at Home: Chromatography
Chemistry at Home: Chromatography Rebroadcast
Originally Published June 29, 2020
Here's another bonus episode dedicated to teaching a specific chemistry experiment you can do at home. This month, we see what happens when we combine markers, coffee filters, and water. Let's do chemistry!
Watch the experiment here!
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Thanks to our monthly supporters
Vince W
Julie S.
Heather R
Autoclave
Chelsea M
Dorien VD
Scott B
Jessie R
Ciara L
J0HNTR0Y
Jeannette N
Cullyn R
Erica B
Elizabeth P
Sarah M
Rachel R
Letila
Katrina B
Suzanne P
Venus R
Lyn S
Jacob T
Brian K
Emerson W
Kristina G
Timothy P
Steven B
Chris and Claire S
Chelsea B
Avishai B
Hunter R
★ Support this podcast on Patreon ★
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13:29
How do pregnancy tests actually work?
#210
Melissa and Jam dive into the science of home pregnancy tests. They explore the process in which these tests detect the presence of the hormone HCG, which signals a positive pregnancy result. The episode explains the roles of capillary action, antibodies, and enzymes in the test's operation and discusses the specificity needed to avoid false positives and negatives. The hosts also share personal anecdotes related to pregnancy tests and offer gratitude to their supportive community. This episode offers a fascinating look at how everyday chemistry impacts our lives in important ways.
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00:00 Introduction and Personal Experiences with Pregnancy Tests
00:17 Curiosity and Chemistry in Everyday Life
04:18 Acknowledging the Community and Supporters
05:09 The Science Behind Pregnancy Tests
06:33 How Pregnancy Tests Detect Hormones
13:19 Ensuring Accuracy in Pregnancy Tests
22:56 Introduction to the Blue and Yellow Balls Analogy
24:12 Understanding the Antibody Mechanism
26:45 Biotin and Its Impact on Test Results
29:33 Personal Stories and Fun Facts
32:06 The Benefits of the Pee Style Device
37:29 Conclusion and Listener Engagement
References from this episode:
https://www.acs.org/pressroom/reactions/library/how-do-pregnancy-tests-work.html
https://www.compoundchem.com/2018/11/09/pregnancy-tests/
https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/clinical-testing-and-diagnostics-manufacturing/ivd-manufacturing/intro-horseradish-peroxidase-hrp-applications?srsltid=AfmBOorCr6_j7sKr8ZBm3jQa4Rz-PdxyabPLY4OO-KtQJZESFXpdRe19#lateral-flow-assays
https://www.ncbi.nlm.nih.gov/books/NBK555922/
https://www.thermofisher.com/us/en/home/life-science/protein-biology/protein-biology-learning-center/protein-biology-resource-library/pierce-protein-methods/overview-elisa.html#:~:text=The%20most%20commonly%20used%20enzyme,an%20HRP%20or%20AP%20conjugate.
Thanks to our monthly supporters
Vince W
Julie S.
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Autoclave
Chelsea M
Dorien VD
Scott B
Jessie R
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J0HNTR0Y
Jeannette N
Cullyn R
Erica B
Elizabeth P
Sarah M
Rachel R
Letila
Katrina B
Suzanne P
Venus R
Lyn S
Jacob T
Brian K
Emerson W
Kristina G
Timothy P
Steven B
Chris and Claire S
Chelsea B
Avishai B
Hunter R
★ Support this podcast on Patreon ★
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40:21
Ask a Chemist: Are all food dyes bad? (and other questions)
Ask a Chemist #66
Melissa and Jam dive into a range of listener-submitted questions exploring everyday chemistry. Topics include the chemistry behind toasting herbs, the effect of gravity on elemental bonds, the purpose and ethics of creating elements with short half-lives, and the effectiveness of cough medicine. They also discuss potential causes of mysterious holes in clothing, the debate on food dyes, and the impact of politics on scientific research funding. The hosts wrap up by addressing various listener questions and sharing some heartwarming and supportive messages from their audience.
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00:00 Introduction
01:24 Toasting Herbs: The Chemistry Behind the Flavor
03:05 Gravity's Role in Chemical Bonding
06:44 The Ethics of Creating New Elements
10:17 How Cough Medicine Works
13:06 The Debate on Food Dyes
15:57 The Yellow Cheese Phenomenon
16:35 Colorful Ceviche and Natural Foods
17:58 Chemistry Hot Takes and Listener Questions
19:03 Cleaning Lab Counters and Acid Holes
21:10 Listener Feedback and Podcast Reflections
25:33 Impact of Politics on Science Funding
29:19 Encouraging Messages from Listeners
30:40 Supporting the Podcast and Final Thanks
References from this episode:
https://www.rsc.org/news-events/community/2017/jan/new-elements/
Thanks to our monthly supporters
Vince W
Julie S.
Heather R
Autoclave
Chelsea M
Dorien VD
Scott B
Jessie R
Ciara L
J0HNTR0Y
Jeannette N
Cullyn R
Erica B
Elizabeth P
Sarah M
Rachel R
Letila
Katrina B
Suzanne P
Venus R
Lyn S
Jacob T
Brian K
Emerson W
Kristina G
Timothy P
Steven B
Chris and Claire S
Chelsea B
Avishai B
Hunter R
★ Support this podcast on Patreon ★
★ Buy Podcast Merch and Apparel ★
Check out our website at chemforyourlife.com
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A podcast that helps you understand the fascinating chemistry hidden in your everyday life.
Have you ever wondered why onions make you cry? Or how soap gets your hands clean? What really is margarine, or why do trees change colors in the fall? Melissa is a chemist, and to answer these questions she started a podcast, called Chemistry for your life!
In each episode Melissa explains the chemistry behind one of life’s mysteries to Jam, who is definitely not a chemist, but she explains it in a way that is easy to understand, and totally fascinating.
If you’re someone who loves learning new things, or who wonders about the way the world works, then give us a listen.