Why does time pass? • 2015 • The Economist

Category: Physics | Download:

The equations of physics suggest time should be able to go backwards as well as forwards. Experience suggests, though, that it cannot. Why? And is time travel really possible?

Make a donation

Buy a brother a hot coffee? Or a cold beer?

Hope you're finding these documentaries fascinating and eye-opening. It's just me, working hard behind the scenes to bring you this enriching content.

Running and maintaining a website like this takes time and resources. That's why I'm reaching out to you. If you appreciate what I do and would like to support my efforts, would you consider "buying me a coffee"?

Donation addresses

BTC: bc1q8ldskxh4x9qnddhcrgcun8rtvddeldm2a07r2v

ETH: 0x5CCAAA1afc5c5D814129d99277dDb5A979672116

With your donation through , you can show your appreciation and help me keep this project going. Every contribution, no matter how small, makes a significant impact. It goes directly towards covering server costs.

The Economist • 2015 - 2017 • 9 episodes •

What caused the Cambrian explosion?

What caused the Cambrian explosion?

For most of the Earth's history, life consisted of the simplest organisms; but then something happened that would give rise to staggering diversity, and, ultimately, life as complex as that which we see today. Scientists are still struggling to figure out just what that was.

2015 • Nature

Do we live in a multiverse?

Do we live in a multiverse?

It has long been thought that our universe is all there is, but it is possible we may live in just one of many.

2015 • Astronomy

What is consciousness?

What is consciousness?

Understanding what consciousness is, and why and how it evolved, is perhaps the greatest mystery known to science.

2015 • Brain

Why does time pass?

Why does time pass?

The equations of physics suggest time should be able to go backwards as well as forwards. Experience suggests, though, that it cannot. Why? And is time travel really possible?

2015 • Physics

Life in the universe

Life in the universe

Does life exist anywhere else in the universe? And how did it get started? Scientists are seeking the answers in the cosmos, our solar system and right here on planet Earth.

2015 • Astronomy

What is the universe made of?

What is the universe made of?

The Earth, the sun, the stars, and everything we can see, only comprise five percent of the universe. But what about the other 95 percent? Scientists are puzzling over dark matter and dark energy, the mysterious components that make up the rest.

2015 • Astronomy

Why are women paid less than men?

Why are women paid less than men?

The gender pay gap is not caused by women earning less than men for the same job. It is largely because women choose different careers and suffer a “motherhood penalty”’.

2017 • Economics

Transforming cities with technology

Transforming cities with technology

Cities are growing faster than at any time in history, straining services and infrastructure. Technology-driven advances are at the forefront of solving this age-old problem

2017 • Technology

Which trends will affect our lives in the future

Which trends will affect our lives in the future

A futurist, a demographer and a museum curator spot trends that will affect the way people live and work.

2015 • Technology

You might also like

The fundamentals of space-time (Part 2)

The fundamentals of space-time (Part 2)

Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time, CERN scientists Andrew Pontzen and Tom Whyntie use a space-time diagram to analyze the sometimes confounding motion of light.

TED-Ed • Physics

Secrets of the Super Elements

Secrets of the Super Elements

Forget oil, coal and gas - a new set of materials is shaping our world and they're so bizarre they may as well be alien technology. In the first BBC documentary to be filmed entirely on smartphones, materials scientist Prof Mark Miodownik reveals the super elements that underpin our high-tech world. We have become utterly dependent on them, but they are rare and they're already running out. The stuff that makes our smartphones work could be gone in a decade and our ability to feed the world depends mostly on a mineral found in just one country. Mark reveals the magical properties of these extraordinary materials and finds out what we can do to save them.

2017 • Physics

For the Love of Physics (Walter Lewin's Last Lecture)

For the Love of Physics (Walter Lewin's Last Lecture)

On May 16, 2011, Professor of Physics Emeritus Walter Lewin returned to MIT lecture hall 26-100 for a physics talk and book signing, complete with some of his most famous physics demonstrations to celebrate the publication of his new book For The Love Of Physics: From the End of the Rainbow to the Edge of Time - A Journey Through the Wonders of Physics, written with Warren Goldstein.

2014 • Physics

Quantum Reality: Space, Time, and Entanglement

Quantum Reality: Space, Time, and Entanglement

Ninety years after the historic double-slit experiment, the quantum revolution shows no sign of slowing. Join a vibrant conversation with renowned leaders in theoretical physics, quantum computation, and philosophical foundations, focused on how quantum physics continues to impact understanding on issues profound and practical, from the edge of black holes and the fibers of spacetime to teleportation and the future of computers.

World Science Festival • Physics

How To Travel To A Parallel Universe

How To Travel To A Parallel Universe

A gateway to a world of limitless possibilities. The parallel universes of science fiction turn out to be as real as they are fantastic. Dr Michio Kaku reveals how future civilizations could build a machine to reach one.

S1E2 • Physics of the Impossible • 2009 • Physics

The Structure of Earth

The Structure of Earth

…or why we live on an onion made of magma.