Bozeman Science
Elementary Charge
In this video Paul Andersen explains how electric charge is quantized and how the smallest unit of charge is 1.6x10^-19 C, or the elementary charge. Robert Millikan discovered the elementary charge using the oil drop experiment....
Bozeman Science
Positive and Negative Feedback Loops
Paul Andersen explains how feedback loops allow living organisms to maintain homeostasis. He uses thermoregulation in mammals to explain how a negative feedback loop functions. He uses fruit ripening to explain how a positive feedback...
Bozeman Science
Osmosis Demo
Mr. Andersen gives a brief description of osmosis. He explains how water moves from a hypotonic to a hypertonic solution across a semipermeable membrane. The video ends with a time-lapse demon in class.
SciShow
Why Does Humidity Make It Feel Hotter?
It turns out there's a scientific explanation behind the saying, "It's not the heat, it's the humidity!" Learn why a hot and humid day feels so dismal and some tips to avoid the really sweaty, gross days on today's Quick Question!
SciShow
We Found Two Planets Using Artificial Intelligence!
Artificial Intelligence has helped astronomers discover 2 new planets in systems that we'd already looked at, and new theories about how Mars lost some of its water have surfaced.
Be Smart
Putting Hurricane Harvey In Perspective
How do we comprehend a storm like Hurricane Harvey? Let's put it into perspective.
Crash Course
Buddha and Ashoka Crash Course World History
In which John relates a condensed history of India, post-Indus Valley Civilization. John explores Hinduism and the origins of Buddhism. He also gets into the reign of Ashoka, the Buddhist emperor who, in spite of Buddhism's structural...
SciShow
How Do We Know What the Milky Way Looks Like?
How do we know what the Milky Way looks like if we've never been outside of it?
MinutePhysics
TOP 10 REASONS Why We Know the Earth is Round
TOP 10 REASONS Why We Know the Earth is Round
SciShow
What Makes Earth’s Magnetic Field Change Direction?
You might have heard that Earth is due for a complete flip of its magnetic field. And while our planet does have a history of this behavior, predictions of when it might happen are too complex to estimate a date for.
TED Talks
TED: A funny look at the unintended consequences of technology | Chuck Nice
Technology should work for us, but what happens when it doesn't? Comedian Chuck Nice explores the unintended consequences of technological advancement and human interaction -- with hilarious results.
SciShow
What Psychologists Can Tell You About Ghosting
Ghosting is when someone terminates a relationship by ending communications abruptly and without explanation. Whether or not you'd consider ghosting someone might have a lot to do with how you view relationships in general.
SciShow Kids
It’s a Bird! It’s a Plane! It’s a DINOSAUR!
Dino's back to share more dinosaur facts with you, and this time he has some incredible news: birds are the descendants of dinosaurs! Join him to learn the whole story!
Crash Course
Diazonium Salts & Nucleophilic Aromatic Substitution: Crash Course Organic Chemistry
Have you ever wondered where cured meats like salami or pepperoni get their bright red color? Of course its from organic chemistry! A chemical called nitric acid gives them that bright color, while also increasing their shelf. It's also...
Crash Course
How P-Values Help Us Test Hypotheses - Crash Course Statistics
Today we're going to begin our three-part unit on p-values. In this episode we'll talk about Null Hypothesis Significance Testing (or NHST) which is a framework for comparing two sets of information. In NHST we assume that there is no...
3Blue1Brown
Exponential growth and epidemics
A primer on exponential and logistic growth, with epidemics as a central example
SciShow
The Strongest Bases in the World
Acids are widely considered to be the scariest chemical compounds of all, but bases can be just as powerful. Most powerful of all are a special class of pH scale-defying bases called superbases!
SciShow
We're Running Out of These Elements — Here's How
Phones, TVs, solar panels, and electric car batteries are all made of some rare and unusual elements. As our modern world creates more and more of these technologies, will things go from "rare" to "nonexistent" and what will we do then?
SciShow
New Ways to Study Interstellar Space... With Voyager!
Voyager 1 may be out of our solar system (and 40+ years old) but we're still getting plenty of new data from our interstellar space probe.
Crash Course
Determinism vs Free Will: Crash Course Philosophy
Do we really have free will? Today Hank explores possible answers to that question, explaining theories like libertarian free will and it’s counterpoint, hard determinism.
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...
SciShow
Why Do Planes Fly So High?
We've all been flying high ever since the development of the jet engine in the mid-1950s. But why were jets were designed to fly at those high altitudes in the first place?
SciShow
The Real Reason It's So Hard to Lose Weight
You probably know that losing weight is really hard. But it may not be just because of your cheat day frequency; your body actually fights back to make losing weight harder.
SciShow Kids
Build a Beehouse! Science Project for Kids
Jessi and Squeaks are busy working in their garden, and they'd like to share one trick that keeps their plants happy!