Today we're going to wrap up our discussion of General Linear Models (or GLMs) by taking a closer looking at two final common models: ANCOVA (Analysis of Covariance) and RMA (Repeated Measures ANOVA). We'll show you how additional...

Marie Tharp's topographical maps increased our understanding of both the ocean floor and the processes that move the earth's crust.

What’s the difference between race and ethnicity? Today we’ll look at how definitions of races and ethnicities have changed over time and across places. We also discuss the terms minority and minority-majority and how races are defined...

We tend to think of pandemics as unlikely events, but disease outbreaks are surprisingly common. Over the past 400 years, the longest stretch of time without a documented outbreak was just four years. So, what's the probability of...

When first discovered in 2010, the Stuxnet computer worm posed a baffling puzzle. Beyond its sophistication loomed a more troubling mystery: its purpose. Ralph Langner and team helped crack the code that revealed this digital warhead's...

Paul Andersen explains how the rate law can be used to determined the speed of a reaction over time. Zeroth-order, first-order and second-order reactions are described as well as the overall rate law of a reaction. The rate of a...

Hans Rosling reframes 10 years of UN data with his spectacular visuals, lighting up an astonishing -- and under-reported -- piece of front-page good news: We're winning the war against child death. Along the way, he debunks one flawed...

SciShow explains how SciShow exists -- and everything else that's ever been made or used on a computer -- by exploring how transistors work together in circuits to make all computing possible. Like all kinds of science, it has its...

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...

Paul Andersen shows you how to graph data by hand. He explains the required elements of a scatter plot with a best fit line. He shows you how to properly scale and label the axes.

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...

When collecting data to make observations about the world it usually just isn't possible to collect ALL THE DATA. So instead of asking every single person about student loan debt for instance we take a sample of the population, and then...

There are a lot of events in life that we just can’t predict, but just because something is random doesn’t mean we don’t know or can’t learn anything about it. Today, we’re going to talk about how we can extract information from...

People are getting older – not just in the individual sense, but the human population itself. Today we’re going to explore those shifting patterns and their implications. We’ll go over the biological, psychological, and cultural aspects...

Hank brings us the story of Gregor Mendel, the Austrian monk who, with the help of a garden full of pea plants, discovered the fundamental properties of inheritance and paved the way for modern genetics. He also gives us the dirt on a...

Today we’re going to begin our discussion of probability. We’ll talk about how the addition (OR) rule, the multiplication (AND) rule, and conditional probabilities help us figure out the likelihood of sequences of events happening - from...

The binomial distribution, introduced as setup to talk about the beta distribution

For the past 70 years, scientists in Britain have been studying thousands of children through their lives to find out why some end up happy and healthy while others struggle. It's the longest-running study of human development in the...

Today we’re going to talk about why many predictions fail - specifically we’ll take a look at the 2008 financial crisis, the 2016 U.S. presidential election, and earthquake prediction in general. From inaccurate or just too little data...

Today we’re going to look at how our computers read and interpret computer files. We’ll talk about how some popular file formats like txt, wave, and bitmap are encoded and decoded giving us pretty pictures and lifelike recordings from...

Today we’re going to talk about search engines, which are just AI systems that try to help us find what we’re looking for. Search engines can be the sort that serve up a list of results, like during a Google or Bing search, using web...

In this deceptively simple 3-minute talk, Dr. Laura Trice muses on the power of the magic words "thank you" -- to deepen a friendship, to repair a bond, to make sure another person knows what they mean to you. Try it.

Researchers have made some unexpected readings of mysterious particles called muons, which may make us reexamine the Standard Model in physics.

Nearly twenty years after the dot-com bubble burst, the internet is an essential piece of the modern world, with the public side mostly commanded by a few powerful companies.