Curated Video
Heisenberg's Uncertainty principle : The Limits of Precision
Werner Heisenberg proposed Heisenberg's Uncertainty Principle in 1927, which states that measuring a particle's momentum and position at the same time with accuracy is not possible. One can know a property less precisely the more...
Curated Video
De Broglie vs Bohr: A Quantum Debate
Niels Bohr's model of the atom introduced the idea of quantised orbits for electrons. In these, electrons occupy stable energy levels and either give off or take in photons when they move between these levels. This model was able to...
Curated Video
De Broglie's Equation: Wave-Particle Duality
De Broglie's equation, formulated by Louis de Broglie in 1924, introduces the concept of wave-particle duality, suggesting that all matter exhibits both wave-like and particle-like properties. The equation is expressed as λ=h/p; λ is...
Curated Video
Limitations of Bohr's Theory
Niels Bohr's Atomic Model Limitations • Primarily applied to hydrogen, not accounting for complexities of multi-electron atoms. • Oversimplified concept of fixed, circular orbits for electrons. • Failed to account for fine structure of...
Astrum
Why Does Heisenberg's Uncertainty Principle Happen?
In part two of our series on Theory of Everything, we explain particle physics using string theory.
Curated Video
Making A Cloud In A Jar
Dr. Boyd shows you how to simulate making a cloud after explaining how they are made in nature.
Minute 0:30 – Introduction
Minute 0:43 – What you need
Minute 1:17 – Explanation
Minute 2:18 – Safety
Minute 2:29 – Making a Cloud in a Jar
...
Veritasium
Is Dust Mostly Dead Skin?
Around half of airborne dust particles under 100um are skin scales. This is true for climates, regions and seasons where people live mostly indoors. The 1 to 2g of skin scales shed each 24 hours will end up in places where people are...
Science ABC
What If Something Travels Faster Than The Speed Of Light?
Can anything travel faster than the speed of light? Is it even possible for something to undertake the “speed of light” travel? And what if something can actually travel faster than light? What is Cherenkov radiation and how is it...
Science ABC
Quantum Physics: Here’s Why Movies Always Get It Wrong
Quantum physics deals with the foundation of our world – the electrons in an atom, the protons inside the nucleus, the quarks that build those protons, and the photons that we perceive as light. These constitute everything that we are...
Science ABC
Hawking Radiation Explained: What Exactly Was Stephen Hawking Famous For?
Hawking radiation was first discovered by English scientist Stephen Hawking in 1974. Prior to this discovery, our knowledge of black holes was very limited. It was believed that black holes were completely black and that they did not...
Science ABC
Higgs Boson (The God Particle) and Higgs Field Explained in Simple Words
The Higgs boson is a wave, ripple or disturbance in an invisible, all-permeating field called the Higgs field. In the year 1964, Peter Higgs, François Englert and four other scientists proposed a rather unique idea to explain why certain...
Science ABC
What is the Heisenberg Uncertainty Principle: Explained in Simple Words
Heisenbergs uncertainty principle says that if we know everything about where a particle is located, we know nothing about its momentum. Conversely, if we know everything about its momentum, then we know nothing about where the particle...
Curated Video
Proton
A positively charged particle found in the nucleus of all atoms. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Curated Video
Photon
A particle of light or other electromagnetic energy. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
Curated Video
Alpha particle
A type of particle produced in some types of radioactive decay, being one of the most widespread forms of ionising radiation. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
Conduction
The transfer of heat energy due to a difference in temperature, always from a hotter to cooler area. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
Electrical charge
A fundamental property of matter that means all particles are either positive, negative, or neutral. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
How Did Saturn Get Its Rings?
Since Galileo first sighted Saturn, scientists have been baffled by its beautiful rings. What are they made of and where did they come from? Physics - Our Solar System - Learning Points. Saturn's rings were first discovered by Galileo in...
Curated Video
Northern Lights
Discover how the chemical reactions which produce the extraordinary colours of the Northern Lights have their origins in outer space. Chemistry - Atoms And Bonding - Learning Points. Aurora Borealis, or Northern Lights, is a natural...
Curated Video
Gamma ray
High energy electromagnetic radiation, with extremely short wavelengths, often smaller than an atom. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
Observer
In physics, an observer is a person or system that records some observable property of a system, such as the velocity of an object. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Antimatter
Matter composed of antiparticles. For every particle of ordinary matter there is a corresponding antiparticle which has the same mass but the opposite charge. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds...
Curated Video
Changing state
Materials change state all the time, but how and why? Material processes - Solids, liquids and gases - Changes of state Learning Points Melting is the change of state from solid to liquid. Evaporation is the change of state from liquid...