Displaying episodes 1 - 30 of 279 in total

What's up with Fahrenheit, Celsius, and... Kelvin?

#180Depending on where you live, you may use Fahrenheit or Celsius to measure temperature, but how did these measurements come about, why are they different, and serio...

Ask a Chemist: Why do metals look metallic? (and other questions!)

Bonus Episode: Question and Response 52In this month's bonus episode, Melissa and Jam respond to your comments and questions about metals, kombucha, learning styles, c...

How do infrared thermometers work?

#179Over the past few years infrared thermometers have started being EVERYWHERE. So as we've cracked open the conversation on thermometers we've got to find out, how d...

How do we see our breath in the air?

#074This time of year, it's a common occurrence, something so common that we might not even wonder about it anymore. But really, why do we see our breath in the air wh...

Thermometers: what is the chemistry behind them?

#178Thermometers tell us what temperature something is. But how do the thermometers know what the temperature is? Who tells the thermometers? Or rather, how do thermom...

Bonus: How do "forever chemicals" sneak into our clothes? (and other questions)

Bonus Episode: Question and Response 51In this month's bonus episode, Melissa and Jam respond to your comments and questions about PFAS/forever chemicals, the periodic...

What is yogurt?

#177Yogurt, sometimes known as thick milk. But what is it really? What happens at the molecular level, how does it become yogurt? And while we're at it, what is sour c...

What is cheese? And what does it have in common with soap?

#104 RebroadcastSeriously what the heck is cheese? It's a question we've all wondered, but most of us only ever know that it's from milk—but what else? How do we turn ...

What even is cinnamon?

#176We're in the portion of the year where cinnamon finds its way into many things we eat and drink: our pies, our tea, our coffee, our wassail, our candles, etc. But ...

Bonus: What's the chemistry of kombucha? (and other questions)

Bonus Episode: Question and Response 50In this month's bonus episode, Melissa and Jam respond to your comments and questions about mosquitos, kombucha, coated cookware...

What even is MSG? Is it bad for you?

#175MSG! The ingredient many of us reference but few of us know anything about. What is it? Why does it make things taste so good? What's in it? Is it bad for us? If n...

Why do onions make you cry?

#016 RebroadcastThis week Melissa and Jam explore the chemistry of onion tears, the emotional reaction we all have, against our will, when cutting onions. Grab some ti...

Why does(n't) turkey make you sleepy?

#174For many folks in the US, today is a day where we eat Turkey! And many times the factoid/rumor makes the rounds that eating turkey makes you sleepy... but does it?...

Bonus: Acronyms and Mom Memories (chemmunity style)

Bonus Episode: Chemmunity StyleFor this month's bonus episode we don't have questions, so we're recording an episode in the style of our secret supporter-only podcast....

Why do we stir things to dissolve them?

#173What is freeze-drying? How can something be both frozen and dried? How does it differ from just freezing, or just drying? And is it just for astronauts? Let's get ...

Why does water form droplets?

#020 RebroadcastThis week Melissa and Jam explore the chemistry of water and intermolecular forces. Why does it form into droplets? Why can you fill a glass of water j...

What is freeze drying?

#172What is freeze-drying? How can something be both frozen and dried? How does it differ from just freezing, or just drying? And is it just for astronauts? Let's get ...

Bonus: Can geckos stick to teflon? (And other questions about PFAS)

Bonus Episode: Question and Response 49In this month's bonus episode, Melissa and Jam respond to your comments and questions all about PFAS aka Forever Chemicals!Refer...

Are learning styles real?

#171What ways do you like to learn? Have you ever thought that you're more of a visual learner? Or what about an auditory learner? Why do you think that? What if we to...

What is margarine? How is it different from butter?

#003 RebroadcastMelissa and Jam discuss margarine and what the heck it is, and how it's different from butter, and if it is actually made in the "country" in a "crock"...

Can forever chemicals be destroyed? (PFAS part 4)

#170So is there any hope of destroying forever chemicals? Once we've made these super resilient molecules, can we finally figure out how to unmake them? And if so, how...

Bonus: How does numbing cream work? (and other questions)

Bonus Episode: Question and Response 48In this month's bonus episode, Melissa and Jam respond to comments and questions about shoes, freeze-drying, water filters, boto...

What can we do now about "forever chemicals?" (PFAS part 3)

#169Time for some action. This week on our "forever chemicals" aka PFAS series, get ready to talk about what we can do about PFAS. Can we get rid of them? Can we filte...

Are cast iron pans as cool as people say?

#045 RebroadcastThe continuation of the unexpected cookware chemistry saga: cast iron. This week, Melissa and Jam discuss multiple aspects of cast iron chemistry. What...

The history of “forever chemicals,” how did we get here? (PFAS part 2)

#168Continuing our series on "forever chemicals" aka PFAS, we explore how we got into this situation. Where did PFAS come from? Why were they made? Were there any sign...

Bonus: Why does coffee spoil faster than tea? (and other questions)

Bonus Episode: Question and Response 47In this month's bonus episode, Melissa and Jam respond to comments and questions about silicone, coffee, pizza stones, hotdogs, ...

What are "forever" chemicals? (aka PFAs) And are they bad? (PFAS part 1)

#167Have you heard of "forever" chemicals? Or PFAS, or PFOAS, or Teflon, or a bunch of other associated names and labels? Or have you ever used nonstick cookware, or a...

Is it safe to use teflon pans?

#041Ok! So now that you know how teflon works (see last week's episode if you missed it), now it's time to discuss the equally important question: is it safe to use?? ...

What is silicone?

#166At some point, silicone snuck onto the scene and found its way into many of our kitchens. It seems kinda like rubber, kinda like plastic, but somehow different. Bu...

Bonus: Are my shoes chemistry? (and other questions)

Bonus Episode: Question and Response 46In this month's bonus episode, Melissa and Jam respond to comments and questions about rubber, cold brew coffee, crystals, green...

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