PBS
What If Physics IS NOT Describing Reality?
Neils Bohr said, “It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we can say about Nature.” Well it turns out that if we pay attention to this subtle difference, some of the most...
PBS
The Crisis in Cosmology
The search for a single number: the hubble constant, which is the rate of expansion of our universe, has consumed astronomers for generations. Finally, two powerful and independent methods have refined its measurement to unprecedented...
PBS
Loop Quantum Gravity Explained
The holy grail of physics is to connect our understanding of the tiny scales of atoms and subatomic particles with that of the vast scales of planets, galaxies, and the entire universe. To connect quantum physics with Einstein’s general...
PBS
Our Antimatter, Mirrored, Time-Reversed Universe
The foundations of quantum theory rests on its symmetries. For example, it should be impossible to distinguish our universe from one that is that is the perfect mirror opposite in charge, handedness, and the direction of time. But one by...
PBS
How Do We Know What Stars Are Made Of?
Pin-pricks in the celestial sphere, through which shines the light of heaven? Or gods and heroes looking down from their constellations? Or lights kindled above middle earth by Varda Elbereth and brightened with the dew of the trees of...
PBS
What Happens During a Quantum Jump?
Since the very beginning of quantum mechanics, a debate has raged about how to interpret its bizarre predictions. And at the heart and origin of that debate is the quantum jump or quantum leap - the seemingly miraculous and instantaneous...
PBS
Sound Waves from the Beginning of Time
Invisible to the naked eye, our night sky is scattered with the 100s of billions of galaxies the fill the known universe. Like the stars, these galaxies form constellations – hidden patterns that echo the reverberations of matter and...
PBS
What’s Wrong With the Big Bang Theory? | Space Time | PBS Digital Studios
Now that we have a primer on the aspects of the Big Bang Theory that we know definitely happened, let’s look further into what we don’t yet know, and how the theory could progress in the future. Since there is a discrepancy between...
PBS
Perpetual Motion From Negative Mass?
Challenge question: if 1kg of apples is $5 and 2kg is $10, how much is -1kg of apples? The answer? Priceless. Because you could use negative-mass apples to build warp drives, travel in time, and construct a perpetual motion machine. In...
PBS
Does Consciousness Influence Quantum Mechanics?
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PBS
Why String Theory is Right
Some see string theory as the one great hope for a theory of everything - that it will unite quantum mechanics and gravity and so unify all of physics into one glorious theory.
PBS
Quantum Gravity and the Hardest Problem in Physics
Between them, general relativity and quantum mechanics seem to describe all of observable reality.
Bozeman Science
PS4C - Information Technologies and Instrumentation
In this video Paul Andersen explains how humans use information technology and instrumentation to better understand their surrounds. Technologies (including X-rays, computers, and phones) use electromagnetic waves to improve the lives of...
TED Talks
Richard Dawkins: Why the universe seems so strange
Biologist Richard Dawkins makes a case for "thinking the improbable" by looking at how the human frame of reference limits our understanding of the universe.
SciShow
IDTIMWYTIM Heisenberg Uncertainty Principle
The Heisenberg Uncertainty Principle might not mean what you think it means: Hank clears things up for us in this edition of IDTIMWYTIM, by distinguishing between the Uncertainty Principle and the Observer Effect, which are often conflated.
Bozeman Science
PS4B - Electromagnetic Radiation
In this video Paul Andersen describes some of the properties of electromagnetic radiation. The electromagnetic spectrum varies by wavelength from radio waves to gamma rays. We only see a portion of the spectrum known as visible light. A...
MinutePhysics
The Origin of Quantum Mechanics (feat. Neil Turok)
The Origin of Quantum Mechanics (feat. Neil Turok)
TED Talks
TED: Science and democracy | Lee Smolin
Physicist Lee Smolin talks about how the scientific community works: as he puts it, "we fight and argue as hard as we can," but everyone accepts that the next generation of scientists will decide who's right. And, he says, that's how...
Curated Video
Planck's Theory: The Birth of Quantum Mechanics
Max Planck's theory was proposed by Max Planck in 1900 revolutionized the field of physics by introducing quantum mechanics and fundamentally reshaping our comprehension of the subject. Planck conducted research on black body radiation,...
Curated Video
Bohr's Atomic Model: Electrons in Orbit
In 1913, Niels Bohr proposed an atomic model that dramatically altered our comprehension of atomic structure by establishing a novel framework for describing the arrangement and behaviour of electrons within an atom. The purpose of...
Curated Video
The Photoelectric Effect : Light and Electrons
The photoelectric effect is a phenomenon where electrons are emitted from a material, typically a metal, when exposed to light. This effect supports the quantum theory of light and demonstrates the particle-like properties of...
Curated Video
Black Body Mystery: The Radiation Phenomenon
Black body radiation is a fundamental topic in physics that has significantly influenced our understanding of quantum mechanics. A black body is an idealized physical object that absorbs all electromagnetic radiation, regardless of...
Curated Video
Number Theory: Gauss
How Gauss found the sum of all the numbers between 1 and 100, in a matter of seconds, aged just seven! He had developed a formula for triangular numbers, and went on to be hailed as the Prince of Mathematics as he moved on to more...
Curated Video
Set Theory: Cantor
Born in Russia and a talented violin player, Cantor is best remembered for inventing Set Theory – but his life and work was overshadowed by his bipolar personality. Maths - History Of Maths A Twig Math Film. Reinforce and extend the...