Bozeman Science
Free Energy and the Equilibrium Constant
In this video Paul Andersen explains how thermodynamic and equilibrium reasoning can be related through changes in free energy and the equilibrium constant. When the delta G is negative the reaction shifts to the right or favors...
TED Talks
Karl Skjonnemand: The self-assembling computer chips of the future
The transistors that power the phone in your pocket are unimaginably small: you can fit more than 3,000 of them across the width of a human hair. But to keep up with innovations in fields like facial recognition and augmented reality, we...
SciShow
The Science of the Cinnamon Challenge
Hank explains the science behind the "cinnamon challenge," and reveals why it is nearly impossible to complete.Do not attempt the cinnamon challenge! Instead, why not just watch some videos of the thousands of YouTubers failing at it!...
SciShow
5 Weird Things That Can Catch Fire
Fire: it's beautiful, it's dangerous, and it shows up in surprising places. Here are five weird things you might have on hand that can go up in flames. Chapters 0:00 0:05 0:11 0:17 0:23 0:29
SciShow
Can Animals Predict Earthquakes?
You might have heard about animals behaving oddly right before an earthquake hits. But are these reports more than just anecdotes?
SciShow
What is Sarin Gas
Hank discusses the chemistry of sarin, the nerve agent that killed more than 1400 people in a chemical weapons attack in Syria.
SciShow
Paleontology's Technicolor Moment
For a long time, we could only guess what color a dinosaur might be. But in the past decade, there has been an explosion of color.
SciShow
How We Fixed the Most Radioactive Place on Earth
Once upon a time, there was a lake that was so radioactive, that standing on its shore for more than an hour would almost definitely kill you. Join Olivia to learn how it got that bad in the first place, and what was done to fix it!
SciShow
How an Ancient Remedy Became a Modern Cure for Malaria
In the 1960s drug-resistant strains of malaria emerged, making the disease even deadlier than before. Then, pharmaceutical scientist Tu Youyou discovered a promising new remedy buried within the pages of ancient Chinese texts.
TED Talks
Molly Stevens: A new way to grow bone
What does it take to regrow bone in mass quantities? Typical bone regeneration -- wherein bone is taken from a patient’s hip and grafted onto damaged bone elsewhere in the body -- is limited and can cause great pain just a few years...
SciShow
The "Disease" That Struck Medieval Church Organs
During long, cold winters in medieval Europe, church organs grew gray, sickly-looking circles that spread over their pipes. People back then believed that this was the work of the devil, but as it turns out, it’s just some pretty simple...
Crash Course
Nucleophiles and Electrophiles - Crash Course Organic Chemistry
Organic reactions are kind of like carefully choreographed fight scenes, and nucleophilic attack is a key move. This episode of Crash Course Organic Chemistry is all about nucleophiles and electrophiles, or what happens at those...
SciShow
The Secret to Super Strong Concrete Is... Bacteria?
Engineers would love it if concrete bridges and skyscrapers didn't require so much maintenance, and they might have found the perfect solution using bacteria.
Bozeman Science
Molecular, Ionic, and Net Ionic Equations
In this video Paul Andersen shows you how to write balanced equations that describe chemical changes. He then gives you a short introduction to balancing equations and uses the PHET site to practice this skill. In aqueous solutions an...
SciShow
Why Does Sugar Make My Teeth Hurt?
Picture this: you're gorging on leftover Halloween candy. You take a bite of a fun-size chocolate bar and instead of sugary goodness, you get a flash of blinding pain in your tooth! What's the deal?
Bozeman Science
Neutralization Reaction
In a neutralization reaction (or acid-base reaction) a proton is transferred from the Brinsted--Lowry acid to the Brinsted--Lowry base. Water is amphoteric and so it can serve as either an acid or a base in a neutralization reaction. The...
Crash Course
Alkyne Reactions Tautomerization - Crash Course Organic Chemistry
Carbon-carbon double bonds are pretty common in nature, but triple bonds between carbons, called alkynes, are not. When alkynes do pop up in nature, it’s usually in a compound that’s toxic to humans, however, we can synthesize alkynes...
SciShow
High-Fructose Corn Syrup: The "Dark Lord" of Nutrition
Hank takes on high fructose corn syrup - the new "dark lord of nutrition" - to help explain the ambiguities around all the claims being made about it.
SciShow
The History (And Future!) of the Chemistry Set
Whatever happened to chemistry sets? They turned entire generations of children on to chemistry, and they also have their own illustrious history. Hank takes you through a tour of the chemistry set over time, and tells you how you can be...
Bozeman Science
Mass Spectrometry
In this video Paul Andersen explains how a spectrometer was used to identify the presence of isotopes. This modified Dalton's original atomic theory because atoms of the same element had different masses. The functional parts of a mass...
Crash Course
Radical Reactions Hammonds Postulate - Crash Course Organic Chemistry
Throughout this series we’ve mostly talked about pairs of electrons, but electrons don’t always have a buddy. An atom or group of atoms with a single unpaired electron is called a radical. In this episode of Crash Course Organic...
Bozeman Science
Lewis Diagrams and VSEPR Models
In this video Paul Andersen explains how you can use Lewis Diagrams and VSEPR Models to make predictions about molecules. The Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the...
SciShow
Hank Meets a Giant Squid and Other News
Hank is back in the studio and is very excited to be able again to share news of the universe with you, including his encounter with a giant squid, an English king discovered under a parking lot, new pyramids discovered in Africa, and...