3Blue1Brown
Why is pi here? And why is it squared? A geometric answer to the Basel problem
A beautiful solution to the Basel Problem (1+1/4+1/9+1/16+...) using Euclidian geometry. Unlike many more common proofs, this one makes it very clear why pi is involved in the answer.
SciShow
Starquakes Could Be Behind 3 Cosmic Mysteries
We’ve detected seismic activity all around the solar system, from earthquakes to moonquakes, marsquakes to venusquakes. But the most dramatic quakes we know of actually happen on stars!
3Blue1Brown
Why is pi here? And why is it squared? A geometric answer to the Basel problem
A beautiful solution to the Basel Problem (1+1/4+1/9+1/16+...) using Euclidian geometry. Unlike many more common proofs, this one makes it very clear why pi is involved in the answer.
PBS
Space Used to Be Orange!!
As long as we've been around, YES. But the universe gets much more exciting, AND much BRIGHTER, as we start winding our clocks back to the early days of the universe. Near the beginning of the universe, when space was rapidly expanding,...
SciShow
SciShow Talk Show: Dr. Heiko Langner on Birds and Bioaccumulation
Crash Course Chemistry Consultant, Dr. Heiko Langner talks to Hank about lab safety, geochemical research, and cleaning up super fund sites. Afterward, Jessi Knudsen from Animal Wonders joins them with Zapper, the Alexandrian Parakeet....
TED-Ed
TED-ED: How do birds learn to sing? _ Partha Mitra
A brown thrasher knows a thousand songs. A wood thrush can sing two pitches at once. A mockingbird can match the sounds around it - including car alarms. These are just a few of the 4,000 species of songbirds. How do these birds learn...
SciShow
Why Solar Eclipses Create Those Crescent-Shaped Lights
Everyone is watching the sky during a solar eclipse, but but if you look down, you'll catch another kind of light show.
SciShow
Why’d the Ocean Stop Getting Saltier?
If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?
TED Talks
Ruby Sales: How we can start to heal the pain of racial division
"Where does it hurt?" It's a question that activist and educator Ruby Sales has traveled the US asking, looking deeply at the country's legacy of racism and searching for sources of healing. In this moving talk, she shares what she's...
SciShow
The First Volcano Power Plant!
Be blown away with this episode of SciShow News as Hank talks about using the power of one of earths most powerful energy sources: Volcanoes!
TED-Ed
Can you solve Dongle's Difficult Dilemma? | Dennis E. Shasha
According to legend, three galactic terraformers shaped your planet into a paradise. When their work was done, they left the source of their power behind: three golden hexagons, hidden in dungeons full of traps and monsters. If one...
TED Talks
TED: How to separate fact and fiction online | Markham Nolan
By the end of this talk, there will be 864 more hours of video on YouTube and 2.5 million more photos on Facebook and Instagram. So how do we sort through the deluge? At the TEDSalon in London, Markham Nolan shares the investigative...
Crash Course
Divine Command Theory: Crash Course Philosophy
As we venture into the world of ethics, there are a lot of different answers to the grounding problem for us to explore. One of the oldest and most popular is the divine command theory. But with age comes a long history of questions,...
Amoeba Sisters
Biomolecules (Updated)
This video focuses on general functions of biomolecules. The biomolecules: carbs, lipids, proteins, and nucleic acids, can all can have important functions in the body. However, this video is not giving human dietary guidelines and...
SciShow
Harlow's Horrifying Monkey Experiments
Dr. Harry Harlow's rhesus monkey experiments in the 1950s contributed a great deal to psychologists' understanding of attachment theory. Unfortunately, his later experiments also contributed a great deal to the need for ethics regulations.
SciShow
NASA's Plan to Capture an Asteroid
Caitlin Hofmeister walks you through NASA's planned Asteroid Retrieval Mission, which aims to capture a space-rock and put it in lunar orbit for study -- all by 2025!
TED Talks
Kirk Citron: And now, the real news
How many of today's headlines will matter in 100 years? 1000? Kirk Citron's "Long News" project collects stories that not only matter today, but will resonate for decades -- even centuries -- to come. At TED2010, he highlights recent...
Crash Course
Media Institution: Crash Course Government and Politics
So today we're going to look at the rather thorny issue of the media and its role in politics. Wether you're talking about older forms of media like newspapers and radio or newer forms like television and the Internet, all media serves...
SciShow
How Slime Mold Is Tackling Mysteries of Cosmology - SciShow News
We might be able to use slime molds to help predict the shape of matter in the universe, and the Rosetta mission may have figured out why many comets seem to be missing a bunch of nitrogen.
Amoeba Sisters
Plant Reproduction in Angiosperms
Join us as we explore flower parts, pollination, and double fertilization in angiosperms. We'll also talk about the importance of pollinators, like bees, and the role they play. 00:00 Intro 1:34 What are Angiosperms? 1:48 Fruit 2:29...
TED-Ed
TED-ED: How to master your sense of smell - Alexandra Horowitz
Some perfumers can distinguish individual odors in a fragrance made of hundreds of scents; tea-experts have been known to sniff out the exact location of a particular tea; and the NYC Transit Authority once had a employee responsible...
TED Talks
Elizabeth Gilbert: Your elusive creative genius
Elizabeth Gilbert muses on the impossible things we expect from artists and geniuses -- and shares the radical idea that, instead of the rare person "being" a genius, all of us "have" a genius. It's a funny, personal and surprisingly...
SciShow
New Clues to the Structure of the Universe
An incredibly bright burst of energy and a dent covered with ice give us insights into planetary and universal structure.