PBS
Can Cosmic Voids Solve The Crisis in Cosmology?
New ReviewTwo of the greatest mysteries in cosmology are the nature of dark energy and the apparent conflict in our measurements of the expansion rate of the early versus the modern universe that even dark energy can’t account for. Could both of...
Crash Course
The Unexpected Truth About Water: Crash Course Biology #21
New ReviewThis is a love letter to water, life’s solvent, and one of the most wonderful molecules around. In this episode of Crash Course Biology, we’ll learn about how water’s polarity and hydrogen bonding help it sustain life on a larger scale....
TED-Ed
TED-Ed: Are there any places on Earth with no bugs? | Charles Wallace
Insects are the world’s most numerous and diverse animals. Even where you’d least expect them in some of Earth’s most extreme environments, there they are. From a scalding volcano, parched desert, to a frigid glacier, insects are living...
PBS
How Vacuum Decay Would Destroy The Universe
The universe is going to end. But of all the possible ends of the universe vacuum decay would have to be the most thorough - because it could totally rewrite the laws of physics. Today I hope to help you understand exactly how terrified...
TED Talks
TED: The fascinating physics of insect pee | Saad Bhamla
Scientist Saad Bhamla is on a mission to answer a question most people don't think to ask: How do insects pee? Taking inspiration from the incredible "butt flickers" of the glassy-winged sharpshooter, Bhamla presents a fascinating study...
Be Smart
What Do Raindrops Really Look Like?
What do raindrops look like? Exactly how we drew them as kids, right? Wrong! Teardrop-shaped rain is physically impossible. This week I went inside a vertical wind tunnel to bring you the true shape of rain.
TED-Ed
TED-Ed: Will future spacecraft fit in our pockets? - Dhonam Pemba
When you picture a rocket, you might imagine a giant ship carrying lots of fuel, people and supplies. But what if the next wave of spacecraft were small enough to fit into our pockets? Dhonam Pemba details the future of microspacecraft,...
TED Talks
Li Wei Tan: The fascinating science of bubbles, from soap to champagne
In this whimsical talk and live demo, scientist Li Wei Tan shares the secrets of bubbles -- from their relentless pursuit of geometric perfection to their applications in medicine and shipping, where designers are creating more efficient...
Be Smart
Why Nature Loves Hexagons (featuring Infinite Series!)
From spirals to spots to fractals, nature is full of interesting patterns. Many of these patterns even resemble geometric shapes. One of the most common? Hexagons. Why do we see this six-sided shape occur so many times in nature? This...
Amoeba Sisters
Properties of Water
Explore some properties of water with the Amoeba Sisters! It's all about those hydrogen bonds.
Be Smart
The Cheerios Effect
Ever notice how cereal clumps up in your bowl, or how cereal sticks to the edges of the bowl? Bubbles in beverages do the same thing.You've probably seen this surface tension and buoyancy at work, but did you know there's some...
Bozeman Science
Solids and Liquids
In this video Paul Andersen compares and contrasts the properties of solids and liquids. Solids have a more organized structure which can either be amorphous or crystalline. In liquids the intermolecular forces are lower and so the...
Crash Course
Water - Liquid Awesome: Crash Course Biology
Hank teaches us why water is one of the most fascinating and important substances in the universe.
Bozeman Science
Intermolecular Forces
In this video Paul Andersen explains how intermolecular forces differ from intramolecular forces. He then explains how differences in these forces account for different properties in solid, liquids and gases. Some of these properties...
Crash Course
Lab Techniques & Safety: Crash Course Chemistry
Hank takes a break from the desk to bring you to the lab in order to demonstrate some important points about the practical side of chemistry - experimentation in the laboratory. You'll learn what to wear in the lab, how to dispose of...
Curated Video
How to Make a Paper Clip Float on Water
Howcast - Learn how to make a paper clip float on water in this Howcast video.
Curated Video
How to Make Cowboy Coffee
When you're camping or rustlin' up cattle and there isn't a kitchen stove nearby, you can make your own coffee with a can and some ingenuity.
Curated Video
Surface Tension - Part 1: Retreating Pepper
In part 1 of a 2 part discussion on surface tension, Dr. Boyd give a simple and easy to follow explanation and demonstration of the effect liquid dish soap has on the surface tension of water.
Minute 0:30 – Introduction
Minute 0:45 –...
Curated Video
Surface Tension - Part 2: Milk Swirls
In part 2 of a two-part discussion on surface tension, Dr. Boyd uses dish soap to decrease the surface tension of milk, which causes the milk to make swirls of color from food dye.
Minute 0:30 – Brief Review
Minute 0:57 – What you...
Science ABC
Can You Survive Jumping Out Of A Plane without A Parachute?
Jumping out of an airplane without a parachute is a last resort and should only be considered when there’s no other viable option of escape from an airplane that is “going downâ€. If you have to jump, it’s often recommended to look...
Curated Video
Surface tension
The cohesive force that occurs at the surface of a liquid, due to the attractive forces between molecules. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Capillary Action
Water is added to dry and bent matchsticks to let us see capillary action at work. The wood absorbs the water causing the matchsticks to straighten. Biology - Plants - Learning Points. Water is a polar molecule because the electrons are...
Curated Video
Life-like Blobs Formed in a Test Tube
How did the very first cells evolve? Most of the basic building blocks can be produced in simple experiments under early Earth-like conditions. However, certain complex cellular behaviours, like movement, have always seemed far-beyond...
Curated Video
Science Experiment: Surface Tension
Here is another simple surface tension demonstration with a ping pong ball. When Alex places the ball in the centre of a half-full glass it is moving toward the side, but when the glass is full the ball changes direction and moves toward...