MinutePhysics
How Do We Know The Universe Is Accelerating?
The universe is expanding – this we know from looking at red shifts of distant galaxies – but the acceleration of the universe's expansion is harder to measure. It requires measuring the change of recession velocity over time, and it's...
TED-Ed
TED-Ed: What's the fastest way to alphabetize your bookshelf? - Chand John
You work at the college library. You're in the middle of a quiet afternoon when suddenly, a shipment of 1,280 books arrives. The books are in a straight line, but they're all out of order, and the automatic sorting system is broken. How...
SciShow
How Do You Choose Between Two Things?
Choosing between two things can be simple, or it could wrap our brains up in the what-ifs and lists of pros and cons. So how do we eventually come to the decision of choosing one of those two things?
MinutePhysics
How Do We Know The Universe Is ACCELERATING?
Aatish Bhatia helped write this video! A big thanks for his help! Here's his blog: http://www.empiricalzeal.com The universe is expanding – this we know from looking at red shifts of distant galaxies – but the acceleration of the...
TED-Ed
TED-Ed: What is depression? - Helen M. Farrell
Depression is the leading cause of disability in the world; in the United States, close to ten percent of adults struggle with the disease. But because it's a mental illness, it can be a lot harder to understand than, say, high...
TED-Ed
TED-ED: Where did English come from? - Claire Bowern
When we talk about 'English', we often think of it as a single language. But what do the dialects spoken in dozens of countries around the world have in common with each other, or with the writings of Chaucer? Claire Bowern traces the...
SciShow
Why Nutrition Studies Keep Contradicting Each Other
It seems like nutrition studies contradict a lot, and it’s practically impossible to get a straight answer on whether a given food or supplement is good for you. But why?
SciShow
Understanding Trypophobia: The Fear of Holes
In this SciShow dose, Michael Aranda explains mystery behind trypophobia.
Crash Course
Chi-Square Tests - Crash Course Statistics
Today we're going to talk about Chi-Square Tests - which allow us to measure differences in strictly categorical data like hair color, dog breed, or academic degree. We'll cover the three main Chi-Square tests: goodness of fit test, test...
Crash Course
Charts Are Like Pasta - Data Visualization Part 1 - Crash Course Statistics
Today we're going to start our two-part unit on data visualization. Up to this point we've discussed raw data - which are just numbers - but usually it's much more useful to represent this information with charts and graphs. There are...
Crash Course
Indus Valley Civilization Crash Course World History
In which John Green teaches you about the Indus Valley Civilization, one of the largest of the ancient civilizations. John teaches you the who, how, when, where and why of the Indus Valley Civilization, and dispenses advice on how to be...
TED-Ed
TED-ED: Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting
When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows us how trigonometric parallaxes, standard candles and more help us determine...
Curated Video
Indus Valley Civilization: Crash Course World History
In which John Green teaches you about the Indus Valley Civilization, one of the largest of the ancient civilizations. John teaches you the who, how, when, where and why of the Indus Valley Civilization, and dispenses advice on how to be...
Curated Video
Assessing Myths and Legends
A video entitled "Assessing Myths and Legends" which analyzes myths and legends.
Curated Video
Connecting Points
This video, entitled "Connecting Points," describes how to compare and contrast to find connections between ideas.
Curated Video
Comparing Structures
A video entitled "Comparing Structures" compares the structure and purpose of different types of writing.
Curated Video
When to Add "Er" vs. "Est" to a Word
Howcast -Learn when to add "er" versus "est" to a word from Gotham Writers' Workshop instructor Stephanie Paterik in this Howcast grammar video.
Curated Video
US-based Acemoglu, Johnson and Robinson win the 2024 Nobel Economics Prize
The final prize this year is the award for research into why countries succeed and fail. It is worth $1.1m.
Curated Video
Exploring characterisation in 'Oliver Twist'
Pupil outcome: I can compare and contrast characterisation within a chapter. Key learning points: - Characterisation is the way text creators describe & develop the personalities and traits of the characters in a story. - Many of the...
Curated Video
C++ : True Or False
Welcome to our complete C++ programming tutorial series, designed for beginners and anyone looking to strengthen their understanding of C++ coding! In this video series, we’ll cover everything you need to know to get started with C++,...
Curated Video
Identifying Proportional Relationships
In this video, I’ll show you *two easy methods* to determine whether two ratios (or even a whole table of values) are proportional: ✅ *Simplifying Ratios* – Reduce each ratio and compare! ✅ *Cross Products Property* – Multiply across and...
The Business Professor
Common Size Analysis
Common size analysis is used to compare financial performance of two different companies or units. It is used to put the compared organizations on the same footing for comparison.
The Business Professor
Du Pont Formula - Assumptions
There are various assumptions made when employing the DuPont formula to compare the performance or Return on Equity between Companies. The primary assumption is that the companies being compared are similar in nature.