MinutePhysics
Impossible Muons
This video is about how terrestrial muons are part of our experimental proof of time dilation, length contraction, and special relativity in general. REFERENCES Cosmic Rays https://en.wikipedia.org/wiki/Cosmic_ray Terrestrial Cosmic Rays...
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...
SciShow
Firehawks: Nature's Arsonists
We all know that birds are incredibly smart, but some birds in Australia take things to the next level — they can intentionally start fires!
MinutePhysics
The Man Who Corrected Einstein
This video is about how Russian physicist Aleksandr Fridman corrected Albert Einstein about the expansion of the universe. Einstein thought that general relativity implied that space had to be static and unchanging, but he had made a...
SciShow
How Archaeologists Are Literally Recreating the Past | Experimental Archaeology
Archaeology might make you think about excavating dinosaur bones or exploring ancient ruins, but we can also learn a lot about the past through experimentation, sometimes with some pretty tasty results!
Crash Course Kids
Oobleck and Non-Newtonian Fluids
Ever heard of Oobleck? How about Non-Newtonian fluids? Well, today Sabrina is going to show us that things can sometimes behave like a solid, and sometimes like a liquid depending on how much force is applied to them. In this episode of...
Crash Course
More Stereochemical Relationships - Crash Course Organic Chemistry
Enantiomers have almost all the same chemical and physical properties, so it can be tough to separate them. But it’s still super important that we know how to tell them apart! In this episode of Crash Course Organic Chemistry, we’ll...
Crash Course
Stereochemistry - Crash Course Organic Chemistry
The shape of molecules is super important to life as we know it. In this episode of Crash Course Organic Chemistry we’re learning about stereochemistry and how to identify molecules as chiral or achiral. And as always, we’ll be doing a...
Crash Course
ANOVA Part 2 Dealing with Intersectional Groups - Crash Course Statistics
Do you think a red minivan would be more expensive than a beige one? Now what if the car was something sportier like a corvette? Last week we introduced the ANOVA model which allows us to compare measurements of more than two groups, and...
Crash Course
Intro to Reaction Mechanisms - Crash Course Organic Chemistry
When we venture to new places, we need navigational tools to guide us. In organic chemistry, those are reaction mechanisms! In this episode of Crash Course Organic Chemistry, we’ll learn all about how to write reaction mechanisms. Having...
Crash Course
Mean, Median, and Mode Measures of Central Tendency - Crash Course Statistics
Today we’re going to talk about measures of central tendency - those are the numbers that tend to hang out in the middle of our data: the mean, the median, and mode. All of these numbers can be called “averages” and they’re the numbers...
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...
MinutePhysics
Hardy's Paradox | Quantum Double Double Slit Experiment
This video is about Hardy's Paradox, wherein an electron and positron (or photons polarized horizontally and vertically) pass through Mach-Zehnder interferometers that overlap such that the particles have a chance of annihilating. If...
Crash Course
More Organic Nomenclature Heteroatom Functional Groups - Crash Course Organic Chemistry
Oxygen is pretty dang amazing! Some of the most intensely studied functional groups in organic chemistry have oxygen atoms. In this episode of Crash Course Organic Chemistry, we're building on the last episode's discussion of...
SciShow
Can You Burn Metal?
You know metal can get really hot, and you probably know that it can melt. But can it burn? Hank shows you how you can burn a hunk of metal like you're some kinda superhero (just be careful, please), and he explains how, in chemistry,...
SciShow
3 Animals That Are Smarter Than You Thought
Dolphins, crows, apes -- you know the drill about smart animals. But there are lots of animals that are smarter than you think. Not everyone thinks they're pretty, but scientists know they're smart.
MinutePhysics
Ciencia, Religión y el Big Bang
¿Cómo empezó el Universo? El Big Bang (que, por cierto, es un nombre horrible) es... complicado, pero intentamos resumirte lo que pasó al principio de todo. ¡Muchas gracias a Marcelo Enrique Anguita Fuentes por apoyarnos en Patreon!...
MinutePhysics
Why is Relativity Hard? | Special Relativity Chapter 1
Thanks to my friend Mark Rober for making the spacetime globe, and to Grant Sanderson (3blue1brown) for inspiration. This is the first in a series of videos about special relativity. This is definitely not an academic course, but it's...
Crash Course
E Z Alkenes Electrophilic Addition Carbocations - Crash Course Organic Chemistry
Alkenes are an important type of molecule in organic chemistry that we’re going to see a lot more of in this series. But before we can really get into the many cool reactions alkenes do, we need to go over some of the basics. In this...
MinutePhysics
What Is The Shape of Space? (ft. PhD Comics)
A collaboration with Jorge Cham and Daniel Whiteson, check out "We Have No Idea" at http://www.wehavenoidea.com Jorge's PhDComics: http://www.phdcomics.com This video is about the local and global geometry and curvature of space and...
MinutePhysics
The "Mountain Or Valley?" Illusion
This video is about a multistable perceptual illusion, similar to the hollow face illusion, whereby maps or aerial or satellite photos look upside down/inside out, ie, concave (valley) parts look convex and convex (mountainous) parts...
Crash Course
T-Tests A Matched Pair Made in Heaven - Crash Course Statistics
Today we're going to walk through a couple of statistical approaches to answer the question: "is coffee from the local cafe, Caf-fiend, better than that other cafe, The Blend Den?" We'll build a two sample t-test which will tell us how...
MinutePhysics
Why Do Compressed Air Cans Get Cold?
This video is about compressed air cans (aka gas dusters) and why they get cold when you spray them. They cool off because the refrigerant inside (1,1-difluoroethane) is under pressure and boils off when the pressure lowers, and energy...