The Fascinating World of Lasers

The Fascinating World of Lasers

In this episode, we pull back the curtain on the most transformative beam of energy humanity has ever harnessed.

We travel back to 1917, when Albert Einstein laid the theoretical foundation for this technology by proposing "stimulated emission", the perfectly synchronized release of light energy.

We look at how physicists later turned this theory into reality, creating an acronym that stands for Light Amplification by Stimulated Emission of Radiation.

We trace the engineering of these intensely precise beams, exploring the differences between gas, solid-state, and semiconductor lasers that power everything from grocery store barcode scanners to the fiber-optic cables carrying the internet across the ocean floor.

Finally, we dive into the cutting edge of laser tech, separating science fiction from reality.

We look at why building a real-world lightsaber is an engineering nightmare, how the military is using high-energy lasers to fry enemy drones mid-air, and how scientists are aiming lasers at the future to achieve limitless clean fusion energy and launch spacecraft to other star systems.

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Episoder(26)

How the World’s First Nuclear Bomb Was Made - Part 1

How the World’s First Nuclear Bomb Was Made - Part 1

In September 1933, Hungarian physicist and Jewish refugee Leo Szilard was struck by a world-altering idea while crossing a London street.Irritated by Lord Rutherford’s dismissal of atomic power as "mo...

12 Aug 48min

Can AI Save Particle Physics

Can AI Save Particle Physics

The particle physics community reached a historic peak in 2012 with the discovery of the Higgs boson, a triumphant vindication of decades of theoretical and experimental work.However, in the years sin...

5 Aug 33min

Future Circular Collider: The Most Expensive Machine in History

Future Circular Collider: The Most Expensive Machine in History

The Future Circular Collider (FCC) represents the most ambitious scientific instrument ever proposed—a subterranean ring 91 kilometers long that would dwarf the current Large Hadron Collider (LHC). At...

29 Jul 13min

What is the Smallest Particle in the Universe

What is the Smallest Particle in the Universe

The experience of mass is one of the most primal and intuitive aspects of our lives, yet its origin is one of the deepest mysteries in science. For centuries, mass was viewed as an innate quality of "...

23 Jul 22min

How Feynman Diagrams Saved Physics

How Feynman Diagrams Saved Physics

Our everyday intuition suggests that empty space should be weightless, as there is seemingly "nothing" there; however, gravity measurements reveal that the vacuum actually holds a significant amount o...

16 Jul 25min

Where Does Mass Come From

Where Does Mass Come From

The experience of "mass" is so primal and intuitive that we rarely question its origins, yet it is one of the deepest and most complex stories in all of science. For centuries, mass was viewed as an i...

9 Jul 33min

A Star Is About To Go Supernova in Our Backyard

A Star Is About To Go Supernova in Our Backyard

In this episode, we look at the terrifyingly unpredictable behavior of one of the largest stars visible to the naked eye. While our Sun is a stable middle-aged star, Betelgeuse is a celestial sprinter...

2 Jul 21min

How Stars Forge Heavy Elements

How Stars Forge Heavy Elements

In this episode, we journey inside the cosmic engine room of the universe to explore the spectacular science of stellar nucleosynthesis. We begin in 1952 with American astronomer Paul Willard Merrill,...

25 Jun 23min

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