PBS
Can You Solve the Poison Wine Challenge?
You're about to throw a party with a thousand bottles of wine, but you just discovered that one bottle is poisoned! Can you determine exactly which one it is?
3Blue1Brown
Music And Measure Theory
How one of the introductory ideas in a field called "measure theory" can be thought of in terms of musical harnomy and dissonance.
3Blue1Brown
All possible pythagorean triples, visualized
There are a few special right triangles many of us learn about in school, like the 3-4-5 triangle or the 5-12-13 triangle. Is there a way to understand all triplets of numbers (a, b, c) that satisfy a^2 + b^2 = c^2? There is! And it uses...
TED-Ed
TED-Ed: Can you solve the giant cat army riddle? - Dan Finkel
The villainous Dr. Schrodinger has developed a growth ray and intends to create an army of giant cats to terrorize the city. Your team of secret agents has tracked him to his underground lab. You burst in to find. . . that it's a trap!...
MinutePhysics
Spacetime Intervals: Not EVERYTHING is Relative | Special Relativity Ch. 7
This video is chapter 7 in my series on special relativity, and it covers the idea that some things AREN'T relative: there IS a sense of absolute length and absolute time, which can be agreed upon from all moving perspectives (as long as...
3Blue1Brown
All possible pythagorean triples, visualized
There are a few special right triangles many of us learn about in school, like the 3-4-5 triangle or the 5-12-13 triangle. Is there a way to understand all triplets of numbers (a, b, c) that satisfy a^2 + b^2 = c^2? There is! And it uses...
PBS
What is a Random Walk?
To understand finance, search algorithms and even evolution you need to understand Random Walks.
Crash Course
Simple Harmonic Motion: Crash Course Physics
Bridges... bridges, bridges, bridges. We talk a lot about bridges in Physics. Why? Because there is A LOT of practical physics that can be learned from the planning and construction of them. In this episode of Crash Course Physics, Shini...
PBS
Can We Combine pi & e to Make a Rational Number?
Can you produce a rational number by exchanging infinitely many digits of pi and e?
Crash Course
Passing Gases: Effusion, Diffusion and the Velocity of a Gas - Crash Course Chemistry
We have learned over the past few weeks that gases have real-life constraints on how they move here in the non-ideal world. As with most things in chemistry (and also in life) how a gas moves is more complex than it at first appears. In...
Be Smart
Pay Attention!
It seems like every week someone tells us how the internet and the digital age are overloading our brains. Sure, sometimes it feels like we're being fed more information than we can handle, that we're paying attention to the wrong...
Bozeman Science
Hardy-Weinberg Equation
In this video Paul Andersen explains the elements in the Hardy-Weinberg equation; including the allele frequency and phenotype frequency. He begins with a brief explanation of phenotypes and genotypes. A sample problem is worked out and...
Bozeman Science
Standard Deviation
In this video Paul Andersen explains the importance of standard deviation. He starts with a discussion of normal distribution and how the standard deviation measures the average distance from the mean, or the "spread" of data. He then...
Bozeman Science
Standard Error
Paul Andersen shows you how to calculate the standard error of a data set. He starts by explaining the purpose of standard error in representing the precision of the data. The standard error is based on the standard deviation and the...
Crash Course
The Normal Distribution - Crash Course Statistics
Today is the day we finally talk about the normal distribution! The normal distribution is incredibly important in statistics because distributions of means are normally distributed even if populations aren't. We'll get into why this is...
PBS
What was Fermat's "Marvelous" Proof?
If Fermat had a little more room in his margin, what proof would he have written there?
Crash Course
Kinetic Theory and Phase Changes: Crash Course Physics
How the heck do we map out a planet without oceans? NASA had to figure that out when we sent the Mariner 9 probe to Mars. There's some tricky, yet fascinating science behind all of it! In this episode of Crash Course Physics, Shini talks...
Bozeman Science
Natural Selection
Paul Andersen explains how natural selection is a major mechanism in evolution. The video begins with a discussion of Charles Darwin and the details of natural selection. The data of the peppered moth during the industrial revolution is...
Curated Video
Statistics & Mathematics for Data Science and Data Analytics - Solution: RMSE
New ReviewThis is the solution to the practice exercise to estimate how well a regression works using the root mean square error method.
Curated Video
Statistics & Mathematics for Data Science and Data Analytics - Root Mean Square Error
New ReviewIn this lecture, you will learn another important metric to determine the quality of our regression using the root mean square error method.
Curated Video
Statistics & Mathematics for Data Science and Data Analytics - Solution: Correlation
New ReviewThis is the solution to the practice exercise on Pearson's coefficient regression analysis.
Curated Video
Statistics & Mathematics for Data Science and Data Analytics - Proportion Testing
New ReviewIn this lesson, we will work through all the steps of hypothesis testing with an example of proportion testing.