Why Are Some World Records So Hard to Break?

Richard Feynman, The Great Explainer: Great Minds
The Dr. Seuss Stories You've Never Heard
The Periodic Table: Crash Course Chemistry #4
10 Mysterious Buried Treasures
Is WiFi Safe?
How 9 Billionaires Start Their Mornings
Is There Liquid Water on Mars?
Why sitting is bad for you - Murat Dalkilinç
Misconceptions about Disney - mental_floss on YouTube (Ep. 28)
Is The Internet a Public Place?
Here’s What Dishonesty is Really About
Learning from dirty jobs | Mike Rowe
What If You Stopped Going Outside?
How Measles Made a Comeback
The Science of Lying
Do My Feet Smell Like Doritos?
30 Game Changing Video Games - mental_floss on YouTube (Ep. 37)
How to Hit a Major League Fastball (According to Science!!!)
The Simple Solution to Traffic
Resurrection Biology: How to Bring Animals Back From Extinction
3 Reasons Mosquitoes Suck
The sonic boom problem - Katerina Kaouri
Religion as social control - 60 Second Adventures in Religion (1/4)
5 Weird Lobster Facts | What the Stuff?!
How Olympians Have Changed (1924-2014)
How Printer Ink Works
How Do Birds Know Where To Go When They Migrate?
What Keeps Nuclear Weapons from Proliferating: The hardest step in making a nuclear bomb
Why Your Brain Is In Your Head
Why Do We Make Glowing Rats?
Bed Bugs | National Geographic
The New Superbug!
Why Does Time Go Forward?
Asteroids to Watch Out For
What Is 4K Video? | Mashable Explains
Nice Guys Finish First
How Does Blood Donation Work? | Brit Lab
Base 60 (sexagesimal) - Numberphile
Why Do Things Look Darker When They're Wet?
I'm Batman - Amy Wray
How Exactly Do You Hear Things?
Will Space Travel Save Us All? | Idea Channel | PBS Digital Studios
How big is a mole? (Not the animal, the other one.) - Daniel Dulek
Climate change: Earth's giant game of Tetris - Joss Fong
The Science of Chocolate
Tidal Locking | Why Do We Only See One Side of the Moon?
Climate Change: The View From MinuteEarth | #OursToLose
Galileo the Scientific Parrot
Spit: Everything You Never Wanted To Know
The Universe in 4 Minutes
Why we do what we do | Tony Robbins
What Happens When You Hold Your Pee?
The 7 magic words that help reveal a lie
Neil deGrasse Tyson: Be Yourself
Ants That Count! | Krulwich Wonders | NPR
Andre Dubus III: A History of Violence
32 Facts about New York City - mental_floss List Show Ep. 418
How Does Marijuana Affect Your Memory?
Lunar Impact!
The Woman Who Saved the U.S. Space Race (And Other Unsung Scientists)
Is Glass Really A Liquid?
Why Do Rivers Have Deltas?
One amazing bet you will always win
A History of Earth's Climate
Cyclic Numbers - Numberphile
How Big Is the Universe?
Philosophy: 60-Second Adventures in Thought (combined)
Corruption, wealth and beauty: The history of the Venetian gondola - Laura Morelli
We Are All Related
Animation basics: The optical illusion of motion - TED-Ed
Exploring the Universe: Crash Course Big History #2
How Many Trees Are There?
What Does Your Accent Say About You?
Why Does Congress Suck?
The Art of Balance, with Philippe Petit
Inside OKCupid: The math of online dating - Christian Rudder
Arts and Crafts: Design in a Nutshell (2/6)
83 Old Slang Phrases We Should Bring Back - mental_floss on YouTube (Ep.208)
Four Creatures That Glow
The Creation of Chemistry - The Fundamental Laws: Crash Course Chemistry #3
Einstein's brilliant mistake: Entangled states - Chad Orzel
3 Misconceptions About Juice Cleanses
Why do men grow facial hair? | Greg Foot Answers | Head Squeeze
27 Weird World Records - mental_floss on YouTube - List Show (315)
Why Avocados Shouldn't Exist
Michio Kaku: A Black Hole in Our Own Backyard?
What cameras see that our eyes don't - Bill Shribman
The History of April Fools Day
Can We Really Touch Anything?
5 Ways to Stop a Killer Asteroid | What the Stuff?!
The happy secret to better work | Shawn Achor
Why are manhole covers round? - Marc Chamberland
How to See Time Travel!!!
Football, Physics, and Symmetry
Why is it Hot Underground?
Death From Space — Gamma-Ray Bursts Explained
New York -- before the City | Eric Sanderson
Are Self-Driving Cars Safe?
Rainbows explained in ten seconds
Weird Places: Australia's Bright Pink Lake
Misconceptions about Pregnancy - mental_floss on YouTube (Ep. 4)
Clay Shirky: How cellphones, Twitter, Facebook can make history
How Much Information?
Are Stupid People More Confident?
Why Do We Find Things Disgusting? | BrainCraft Q&A!
Why Do People Obsess Over Sports?
What Causes Nosebleeds?
The Majestic Grolar Bear
Rosalind Franklin: Great Minds
Mitosis: Bite Sci-zed
The Challenge of Being Close
Animal Development: We're Just Tubes - Crash Course Biology #16
Why People Don't Believe In Climate Science
Measles Explained — Vaccinate or Not?
Can you spot a fake smile?
Why are blueprints blue? - Big Questions - (Ep. 206)
The carbon cycle - Nathaniel Manning
Ocean Confetti!