3Blue1Brown
Cross products | Essence of linear algebra, Chapter 10
The cross product is a way to multiple to vectors in 3d. This video shows how to visualize what it means.
TED-Ed
TED-ED: Feedback loops: How nature gets its rhythms - Anje-Margriet Neutel
While feedback loops are a bummer at band practice, they are essential in nature. What does nature's feedback look like, and how does it build the resilience of our world? Anje-Margriet Neutel describes some common positive and negative...
SciShow
The New Era of Negative Campaigns
Negative campaigns—or campaigns that work by painting opposing candidates in a negative light—have been used for decades. But today, thanks to information that can be gained from social media, these campaigns may be even more effective...
TED Talks
TED: Progress is not a zero-sum game | Robert Wright
Author Robert Wright explains "non-zero-sumness" -- the network of linked fortunes and cooperation that has guided our evolution to this point -- and how we can use it to help save humanity today.
SciShow
The Not-So-Silver Lining: When Positive Thinking Backfires
There are a multitude of books and motivational speakers that insist that anyone can think their way to happiness, but that advice really isn’t a one-size-fits-all solution.
SciShow
Groups That Chant Together, Stay Together
If you've ever been part of a huge crowd, like at a sporting event, you've probably seen people clap, sing, and chant together in sync. How do big groups of individuals all manage to do the same thing at the same time, even when there's...
Bozeman Science
Thinking in Systems - Level 5 - Simulating Systems
In this video Paul Andersen shows conceptual thinking in a mini-lesson on simulating systems. TERMS: Simulations - imitation of a situation or process Interactions - reciprocal (two-way) action or influence Energy - the ability to cause...
TED Talks
Ellen Jorgensen: Biohacking -- you can do it, too
We have personal computing -- why not personal biotech? That's the question biologist Ellen Jorgensen and her colleagues asked themselves before opening Genspace, a nonprofit DIY bio lab in Brooklyn devoted to citizen science, where...
TED-Ed
TED-Ed: How do geckos defy gravity? - Eleanor Nelsen
Geckos aren't covered in adhesives or hooks or suction cups, and yet they can effortlessly scale vertical walls and hang from ceilings. What's going on? Eleanor Nelsen explains how geckos' phenomenal feet allow them to defy gravity.
SciShow
Facebook's Secret Psychological Experiment
SciShow News explains the science behind a psychological experiment performed on about seven hundred thousand Facebook users, although none of them knew that they were participating.
SciShow
Make Your Own Edible Bubbles! | Spherification
Caviar or fruity ball? Whatever you like! Here’s a rundown of how to spherify your own edible bubbles and why they could help to reduce waste.
Bozeman Science
Ionic Bonding
In this video Paul Andersen explains how ionic solids form when cations and anions are attracted. When atoms lose or gain electrons they form ions. The strength of the attraction between ions is based on the amount of charge and the...
PBS
Why Computers are Bad at Algebra
The answer lies in the weirdness of floating-point numbers and the computer's perception of a number line.
SciShow
Why We Love Movie Villains (According to Psychology)
Sometimes we find ourselves falling for the cute vampire or German bank robber, and this might say a lot about how we think about ourselves.
3Blue1Brown
Higher order derivatives | Footnote, Essence of calculus
What is the second derivative? Third derivative? How do you think about these?
SciShow
How Can One Person's Blood Save 2 Million Babies?
An Australian man named James Harrison holds the world record for most blood donations. His blood has saved the lives of millions of newborn babies, but how can one man's blood help babies all over the world?
TED Talks
Hannah Fry: The mathematics of love
Finding the right mate is no cakewalk -- but is it even mathematically likely? In a charming talk, mathematician Hannah Fry shows patterns in how we look for love, and gives her top three tips (verified by math!) for finding that special...
TED Talks
TED: How better tech could protect us from distraction | Tristan Harris
How often does technology interrupt us from what we really mean to be doing? At work and at play, we spend a startling amount of time distracted by pings and pop-ups -- instead of helping us spend our time well, it often feels like our...
Amoeba Sisters
Properties of Water
Explore some properties of water with the Amoeba Sisters! It's all about those hydrogen bonds.
TED Talks
Lee Thomas: How I help people understand vitiligo
TV news anchor Lee Thomas thought his career was over after he was diagnosed with vitiligo, an autoimmune disorder that left large patches of his skin without pigment and led to derision and stares. In a captivating talk, he shares how...
TED Talks
Ben Goldacre: Battling bad science
Every day there are news reports of new health advice, but how can you know if they're right? Doctor and epidemiologist Ben Goldacre shows us, at high speed, the ways evidence can be distorted, from the blindingly obvious nutrition...
Bozeman Science
Electric Force
In this video Paul Andersen explains how electric force on an object inside a field can be calculated by multiplying the charge of the object (in C) times the electric field strength (in N/C).
SciShow
How Awe Changes You
Whether you get it from standing on the top of Mount Everest or watching a video about the size of the universe on SciShow Space, awe can be a powerful, transformative emotion.
Bozeman Science
Electromagnetic Forces
In this video Paul Andersen explains how electromagnetic forces are exerted over all scales and dominate at the human scale. The magnitude of electromagnetic forces vary with the magnitude and motion of the electric charges involved.