Curated Video
Natures and Properties of Nuclear Radiations: Alpha, Beta, and Gamma Rays
The video is a lecture on the natures and properties of nuclear radiations. The speaker discusses the three types of ionizing radiation: alpha particles, beta particles, and gamma rays. They explain the ionizing and penetrating abilities...
Science360
Water and Oil Everywhere, and Now it's Safe to Drink
Paul Edmiston demonstrates the effectiveness of his Osorb water purifier by drinking from a slurry of water and engine-enhancing fuel additives. Osorb is a powder made from tiny fragments of chemically modified glass, and it works like a...
Virtually Passed
Work Energy Example 1
A block is sliding down a circular path and colliding with a spring. What is the maximum compression of the spring?
Science360
Lab In A Can
Monitoring water quality is vital to make sure dangerous bacteria doesn't creep into our drinking water or overcome sewage treatment plants. With support from the National Science Foundation, engineers at the Monterey Bay Aquarium...
Visual Learning Systems
Weather in Action: Cloud Formation
This video examines the forces creating weather. The way in which atmospheric conditions and patterns cause changes in the weather is explained. Instruction on how to use a weather map and how we can predict tomorrow's weather is...
Looking Glass Universe
Why Cant You Use Quantum Mechanics To Communicate Faster Than Light?
The EPR paradox, that we met in a previous video, tells us 2 entangled particles can effect each other no matter now far away they are. But then why cant we use them to send instant messages across the universe? Einsteins relativity...
National Institute of Standards and Technology
Krister Shalm Explains NIST's Participation in the BIG Bell Test
NIST physicist Krister Shalm talks about NIST's participation in the November 30, 2016, BIG Bell Test, a worldwide project to bring human unpredictability (randomness) to cutting-edge physics experiments. But it's not just NIST...
Journey to the Microcosmos
Peritrich Ciliates Masters of Long-Range Snacking
Peritrich Ciliates Masters of Long-Range Snacking
Professor Dave Explains
Quantum Gravity and Gravitons: The Search for a Theory of Everything
We've gone through some of the main advancements in modern physics, which brings us to the here and now! What are physicists currently working on? One huge area of interest is developing a quantum field theory for the gravitational...
Science360
Spying on Synapses - early concept brain research
Signaling across synapses--the tiny gaps between neurons, over a thousand times thinner than a sheet of paper--requires multiple molecules to work together. To learn how neurons communicate, and ensure they pass across the synapses at...
NASA
On a Mission: Season Two, Episode 5: Catch a Falling Star
Why are missions like OSIRIS-REx bringing pieces of an asteroid back home?
NASA
Small Steps, Giant Leaps: Episode 69, Parker Solar Probe Small Steps, Giant Leaps
Parker Solar Probe Mission Scientist Adam Szabo discusses NASA's journey to the Sun.
Visual Learning Systems
Understanding Heat Energy and Phase Changes
This video explains the concept of heat energy and its role in temperature and phase changes. The video also highlights how heat energy is responsible for phase changes, using the example of water transitioning from solid ice to liquid...
Cerebellum
Space Facts II - Lunar Ranging
Space Facts II puts viewers on the forefront of space exploration, examining its role on Earth in fighting forest fires, controlling diseases (such as diabetes), combating air pollution and mapping solar and lunar cycles. This video...
Science360
Multi-messenger astrophysics neutrino breakthrough!
On Sept. 22, 2017, the National Science Foundation's IceCube Neutrino Observatory alerted the international astronomy community that a high-energy neutrino had passed through the Earth. That notification set in motion follow-on...
NASA
NASA | Fermi Detects First Gamma-ray Pulsar in Another Galaxy
Researchers using NASA's Fermi Gamma-ray Space Telescope have discovered the first gamma-ray pulsar in a galaxy other than our own. The object sets a new record for the most luminous gamma-ray pulsar known. The pulsar lies in the...
Science360
Damaging Volcanic Ash Stays Well Beyond Welcome
Volcanic ash can become a multimillion-dollar nightmare, lingering in the skies, getting into engines and damaging aircraft. Volcanic ash is known to present hazards to aviation, infrastructure, agriculture, and human and animal health....
Next Animation Studio
CERN approves proposal for €21 billion successor to Large Hadron Collider
On June 19, the CERN Council in Geneva Switzerland approved the construction of a new 100-kilometer circular supercollider called the Future Circular Collider.
NASA
Gravity Assist: Gravity Assist Podcast: Where Could We Go on the Moon? With Steve Mackwell
With NASA planning to send astronauts to the Moon by 2024, Steve Mackwell chats about the Moon’s exciting unexplored areas.
Curated Video
Diffusion: How Substances Move In and Out of Cells
This video explains how substances move in and out of cells via diffusion, which is the net movement of particles from an area of high concentration to an area of low concentration. The video first defines diffusion and illustrates it...
NASA
Gravity Assist: Meet a Space Weather Scientist, with Yaireska Collado-Vega
Yaireska Collado-Vega leads a team at NASA’s Goddard Spacecraft Center that is studying the solar weather environment so that robots and people exploring space can be protected. In this episode of Gravity Assist, she describes the...
Englishing
When to use Stranded PREPOSITIONS (placing prepositions at the end of a sentence)
Many students have been taught that prepositions are never left behind a sentence or a question. However, there is no rule which states this. There are some cases where we need to put a preposition at the end of a sentence or a question....
Professor Dave Explains
Quantum Chromodynamics (QCD)
Electromagnetic force down, three more forces to go! Which one is next? Why it's the strong nuclear force, famous for keeping atomic nuclei together. What kind of particles will be involved in this quantum field theory? Let's find out.
Professor Dave Explains
The Heisenberg Uncertainty Principle Part 2: Energy/Time and Quantum Fluctuation
Get ready for one of the weirdest things in modern physics. Particles that pop into existence from nothing and then go back to nothing again! This is happening all the time, all around you and even inside of you. It's the quantum foam,...