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What if you went back in time and killed your own grandfather? Would you still be born? Or would you have thus killed yourself?

How long is the coastline of Australia? One estimate is that it's about 12500 km long. However the CIA world factbook puts the ...

One of the most famous paradoxes of all of physics – who's older? Who's younger? and WHY? ***** Thanks to The Great Courses ...

When you need experience to get a job, but need a job to get experience, there's a philosophical and logical name for that!

Ancient mathematical trickery proves that a mighty hero cannot overtake a tortoise (And that mortgages take a long time to pay off).

Why haven't we found alien life? In this video, Theoretical Cosmologist Dr. Paul Sutter and Museum of Science Planetarium ...

The first 200 people to go to http://brilliant.org/minutephysics get 20% off a premium subscription to Brilliant. This video is about ...

The bootstrap paradox is a classic time travel paradox and one which is used in many sci-fi films. Can a future event cause ...

The scientific method is only a few hundred years old. This continues to amaze me. It seems so obvious, now, that you should go ...

If you enjoy the content of this video, this is just a short clip from the much longer series that goes through 21 of our most common ...

A paradox is a seemingly absurd or self-contradictory statement that is considered both true and untrue at the same time. Despite ...

The Doctor explains the bootstrap paradox but who really composed Beethoven's Fifth? Subscribe: ...

Even though less than 1% of Earth's water is freshwater, it's the home for 50% of fish species. This is the Freshwater Paradox.

TWEET IT - http://clicktotweet.com/bo6XQ You've made it to the final round of a game show, and get to pick between 3 doors, one ...

I get it, it's trendy to be contrarian and want to dismantle standardized thinking, but here's the thing…

A Predestination Paradox refers to a phenomenon in which a person traveling back in time become part of past events, and may ...

View full lesson: http://ed.ted.com/lessons/the-paradox-of-value-akshita-agarwal Imagine you're on a game show and you can ...

Welcome back to The Paradox Explained! Ever looked at a wheel and thought something was... off? In this video, we're diving into ...

The Staircase paradox | A Paradox that can disprove the famous 'Pythagoras theorem'! Yes, this video is very interesting as you ...

Aristotle's wheel paradox is a paradox or problem appearing in the pseudo-Aristotelian Greek work Mechanica. It states as ...