TED-Ed
TED-Ed: Why don't oil and water mix? - John Pollard
Salt dissolves in water; oil does not. But why? You can think of that glass of water as a big, bumpin' dance party where the water molecules are always switching dance partners -- and they'd much rather dance with a salt ion. John...
Be Smart
There's No Such Thing As Cold
You've felt cold before. Sometimes it's cold outside. But what if I told you that "cold" isn't real? There's no substance or quantity called "cold" in science. We can't measure the amount of "cold" in something. Instead it's about what's...
PBS
Are You a Boltzmann Brain?
Was an incredible drop in entropy responsible for the Big Bang? If that's the case, this would lead us to conclude that a great many other things are possible, including the likelihood that you are a Boltzmann Brain.
PBS
The Physics of Life (ft. It's Okay to be Smart & PBS Eons!)
Our universe is prone to increasing disorder and chaos. So how did it generate the extreme complexity we see in life? Actually, the laws of physics themselves may demand it.
Bozeman Science
Second Law of Thermodynamics
In this video Paul Andersen explains how the second law of thermodynamics applies to reversible and irreversible processes. In a reversible process the net change in entropy is zero. In and irreversible process the entropy will always...
Bozeman Science
Gibbs Free Energy
Paul Andersen attempts to explain Gibbs Free Energy. He begins by using three spontaneous reactions to explain how a change in enthalpy, entropy and temperature can affect the free energy of a system. He then applies this concept to...
Crash Course
Thermodynamics: Crash Course History of Science
It's time to heat things up! LITERALLY! It's time for Hank to talk about the history of Thermodynamics!!! It's messy and there are a lot of people who came up with some ideas that worked and other that didn't and then some ideas that...
PBS
The Misunderstood Nature of Entropy
Entropy is surely one of the most intriguing and misunderstood concepts in all of physics. The entropy of the universe must always increase - so says the second law of thermodynamics. It's a law that seems emergent from deeper laws -...
SciShow
There's a Loophole in One of the Most Important Laws of Physics
The laws of thermodynamics are cornerstones of physics - but one of them is more breakable than it appears.
Crash Course
Enthalpy: Crash Course Chemistry
Energy is like the bestest best friend ever and yet, most of the time we take it for granted. Hank feels bad for our friend and wants us to learn more about it so that we can understand what it's trying to tell us - like that any bond...
Bozeman Science
Using Gibbs Free Energy
In this video Paul Andersen explains how you can use the Gibbs Free Energy equation to determine if a process is spontaneous or not spontaneous. If the _G is less than zero the process is spontaneous. If the _G is greater than zero the...
Crash Course
Entropy: Embrace the Chaos! Crash Course Chemistry
Life is chaos and the universe tends toward disorder. But why? If you think about it, there are only a few ways for things to be arranged in an organized manner, but there are nearly infinite other ways for those same things to be...
Bozeman Science
Entropy
In this video Paul Andersen explains that entropy is simply the dispersion of matter or energy. He begins with a series of video that show the natural direction of processes. According to the second law of thermodynamics the entropy may...
Bozeman Science
Spontaneous Processes
In this video Paul Andersen discriminates between spontaneous (or thermodynamically favored) processes and those that are not spontaneous. A spontaneous process requires no external energy source. If the enthalpy change in a reaction...
Bozeman Science
Life Requires Free Energy
Paul Andersen describes how free energy is used by organisms to grow, maintain order, and reproduce. A brief discussion of the first and second law of thermodynamics is also included. Disruptions in the amount of free energy can cause...
Crash Course
Why We Can't Invent a Perfect Engine: Crash Course Engineering #10
We’ve introduced the 0th and 1st laws of thermodynamics, so now it’s time to move on to the second law and how we came to understand it. We’ll explain the differences between the first and second law, and we’ll talk about the Carnot...
SciShow
The Strange Physics Behind the Smell of Rubber Bands
If you've spent any time trying to explode a pumpkin with rubber bands you know that they have a distinct smell to them when stretched, and you have physics to thank for that.
Be Smart
Can We Get Older Without Aging?
Nothing is guaranteed in life except death, taxes, and entropy. What do other life forms have to teach us about staying alive as we get old, and will we ever conquer death?
TED-Ed
TED-ED: What triggers a chemical reaction? - Kareem Jarrah
Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these reactions happen in the first place? Kareem Jarrah answers this question by...
TED-Ed
TED-ED: What is entropy? - Jeff Phillips
There's a concept that's crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. It's entropy, and it's...
Curated Video
Entropy is not what you think!
We explore the fundamental nature of entropy and its deep link to information. If you were taught that entropy measured disorder, you are in for a treat! Chapters: 00:00 Intro 00:10 Macro- and Microstates 02:06 Entropy is Not a Property...
Curated Video
Fundamentals of Secure Software - Password Management
This video explains how to handle passwords securely.
Curated Video
Entropy Explained with an Intuitive Model
While observing this simulation model of a car, you can virtually see entropy and the second law of thermodynamics with your own eyes. In this video you will discover one of the most fundamental laws of nature, which can not only explain...