• Reactions -- How Does Double Acting Baking Powder... Doubly Act?
    How Does Double Acting Baking Powder... Doubly Act?
    Why does baking powder say “double acting” on the container? Is that better ...
    Why does baking powder say “double acting” on the container? Is that better than single acting? This week on Reactions, we explain -- with chemistry!
    Air Date 9/10/2018
    0:02:23
  • Reactions -- How Plastic Recycling Actually Works
    How Plastic Recycling Actually Works
    What happens to plastic bottles when you recycle them? Do they get made into ...
    What happens to plastic bottles when you recycle them? Do they get made into fresh bottles, or do they become something else? This week on Reactions, learn why it's easier to turn bottles into workout ...
    Air Date 9/10/2018
    0:03:01
  • Reactions -- Can You Take Expired Drugs?
    Can You Take Expired Drugs?
    Every medicine you buy has an expiration date printed on it somewhere, but does ...
    Every medicine you buy has an expiration date printed on it somewhere, but does it actually go bad? This week on Reactions, we explain the chemistry of drug expiration dates.
    Air Date 9/10/2018
    0:03:25
  • Reactions -- Will This Pop a Balloon?
    Will This Pop a Balloon?
    Have you ever popped a balloon with just an orange peel? This chemistry party ...
    Have you ever popped a balloon with just an orange peel? This chemistry party trick is a classic demo of how solvents work. Learn about the science of why like dissolves like!
    Air Date 9/10/2018
    0:08:11
  • Reactions -- Yellowstone Steaming Acid Pools of Death
    Yellowstone Steaming Acid Pools of Death
    Yellowstone National Park’s hot springs have incredible geochemistry thanks to ...
    Yellowstone National Park’s hot springs have incredible geochemistry thanks to being part of an actual volcano. But why are they so different, and why are some more dangerous than others?
    Air Date 9/10/2018
    0:03:05
  • Reactions -- How Air Conditioning Works
    How Air Conditioning Works
    To beat the summer heat, we turn to air conditioning. But that sweet, cool ...
    To beat the summer heat, we turn to air conditioning. But that sweet, cool relief isn’t magic: it’s the science of heat transfer and the chemistry of refrigerants.
    Air Date 9/10/2018
    0:04:23
  • Reactions -- 3 Most Useful Kitchen Gadgets - Are They Worth It?
    3 Most Useful Kitchen Gadgets - Are They Worth It?
    Do you really need a slow cooker, rice cooker, sous vide immersion circulator, ...
    Do you really need a slow cooker, rice cooker, sous vide immersion circulator, and a pressure cooker all sitting around your kitchen taking up counter space? Depends how you intend to use them -- and ...
    Air Date 9/10/2018
    0:03:12
  • Reactions -- Why Does Stinky Cheese Stink?
    Why Does Stinky Cheese Stink?
    Some cheeses, like Epoisses, are so legendarily stinky they’re supposedly ...
    Some cheeses, like Epoisses, are so legendarily stinky they’re supposedly banned on public transit in France. It’s the chemistry of washed-rind cheeses that makes them such a smelly food.
    Air Date 9/10/2018
    0:04:57
  • Reactions -- Surströmming: The Secrets of this Stinky Swedish Fish
    Surströmming: The Secrets of this Stinky Swedish Fish
    Surstromming, Swedish for sour herring, is legendary for its powerful stink. But ...
    Surstromming, Swedish for sour herring, is legendary for its powerful stink. But it's all a result of the chemistry of preserving food. This week on Reactions, we learn about the world's smelliest ...
    Air Date 9/10/2018
    0:07:54
  • Reactions -- How Do Hydrangeas Change Colors?
    How Do Hydrangeas Change Colors?
    Savvy gardeners know that they can fine-tune they color of their hydrangea ...
    Savvy gardeners know that they can fine-tune they color of their hydrangea blooms by just changing the soil pH. But what does pH have to do with color?
    Air Date 9/10/2018
    0:05:05
  • Reactions -- Are We Breathing Caesar's Last Breath
    Are We Breathing Caesar's Last Breath
    Are you breathing air molecules that were once exhaled by Caesar, Joan of Arc, ...
    Are you breathing air molecules that were once exhaled by Caesar, Joan of Arc, or Madame Curie? And why did Albert Einstein try to break into the refrigerator business? We talked to writer Sam Kean, ...
    Air Date 9/10/2018
    0:05:24
  • Reactions -- How Seashells Are Made
    How Seashells Are Made
    If you know that seashells are made of basically the same stuff as chalk, you ...
    If you know that seashells are made of basically the same stuff as chalk, you might have wondered why chalk is crumbly but seashells are super tough. This week on Reactions, we explain: The secret’s ...
    Air Date 9/10/2018
    0:03:43
  • Reactions -- The Ultimate Donut Battle: Cake vs. Yeast
    The Ultimate Donut Battle: Cake vs. Yeast
    There’s nothing weirder than biting into a cake donut when you’re expecting ...
    There’s nothing weirder than biting into a cake donut when you’re expecting the texture of a yeast donut. It’s all fried dough, right? This week on Reactions, we talk about how chemistry makes ...
    Air Date 9/10/2018
    0:04:32
  • Reactions -- Does Melatonin Do Anything?
    Does Melatonin Do Anything?
    Melatonin is a supplement that’s supposed to help you sleep. But does it work? ...
    Melatonin is a supplement that’s supposed to help you sleep. But does it work? What’s the chemistry of this sleep aid? This week on Reactions, we go into the chemistry of melatonin and the ...
    Air Date 9/10/2018
    0:04:22
  • Reactions -- How Do Airbags Work?
    How Do Airbags Work?
    If you’re in a car accident, you want to be sure your airbags protect you. And ...
    If you’re in a car accident, you want to be sure your airbags protect you. And they work because of chemistry, with some physics thrown in. This week on Reactions, we’re talking the science of ...
    Air Date 9/10/2018
    0:03:11
  • Reactions -- Burning Ice from the Ocean Floor
    Burning Ice from the Ocean Floor
    This ice burns because it’s actually methane trapped in water. This week on ...
    This ice burns because it’s actually methane trapped in water. This week on Reactions, we talk about the chemistry of methane hydrates as a source of energy and a climate change threat.
    Air Date 9/10/2018
    0:03:44
  • Reactions -- Small Bottle, HUGE Fireball (How Flame Jetting Works)
    Small Bottle, HUGE Fireball (How Flame Jetting Works)
    Pouring gasoline, alcohol, or other fuel over a flame can cause a ten-foot ...
    Pouring gasoline, alcohol, or other fuel over a flame can cause a ten-foot fireball to shoot out and engulf an unsuspecting victim. This week on Reactions, we’re explaining the science of flame ...
    Air Date 9/10/2018
    0:04:09
  • Reactions -- The Half-Life of Uranium & Collecting Gold in Acid
    The Half-Life of Uranium & Collecting Gold in Acid
    How do we know the half-life of uranium? How do you recover gold that’s been ...
    How do we know the half-life of uranium? How do you recover gold that’s been dissolved in acid? We take on your burning chemistry questions.
    Air Date 9/10/2018
    0:02:51
  • Reactions -- Cow Burps Are Warming the Planet
    Cow Burps Are Warming the Planet
    Cows burp up a lot of methane thanks to the chemistry of their digestion. And ...
    Cows burp up a lot of methane thanks to the chemistry of their digestion. And since methane is a greenhouse gas, our beef and dairy have huge climate change consequences. This week on Reactions, we ...
    Air Date 9/10/2018
    0:02:49
  • Reactions -- What Are Century Eggs?
    What Are Century Eggs?
    These green and black preserved eggs don’t really look like food, but the ...
    These green and black preserved eggs don’t really look like food, but the chemistry of fermentation turns pidan, or century eggs, into a Chinese comfort food. In this week’s Reactions episode, ...
    Air Date 9/10/2018
    0:02:52
  • Reactions -- TV Forensics: What Do CSIs Actually Do?
    TV Forensics: What Do CSIs Actually Do?
    We all love detective crime dramas and TV shows, like CSI Miami, Law and Order, ...
    We all love detective crime dramas and TV shows, like CSI Miami, Law and Order, Magnum P.I, True Detective and NCIS. But there’s tons of crucial evidence that gets examined thoroughly in order to ...
    Air Date 9/10/2018
    0:04:16