Why so many people need glasses now?
Have you noticed that more and more people around you are wearing glasses these days? Well, you are not alone, as the rates of myopia or near-sightedness have been increasing…
Video Genre: Big Questions
How A Ballpoint Pen Works Close Up?
A ballpoint pen is nothing short of a marvel of modern engineering – beneath that humble and inconspicuous exterior lies a surprisingly complex internal mechanism.
Why Spider Silk is Stronger Than Steel?
Spider silk is one of the strongest materials known to man. Scientists have been trying to figure out why it is so strong and resilient for centuries. As it turns…
Why You Should Wash Knife After Sharpening?
Every sharp knife sharpener knows the importance of washing a knife after sharpening it. Without doing so, the small pieces of metal broken off the blade during sharpening can easily…
How Do Touchscreens Actually Work?
In 2010, South Korea experienced a particularly cold winter. People could not activate their touchscreens while wearing gloves, so they began wielding snack sausages— causing one company to see a…
How Mushroom Time-Lapses Are Filmed?
Louie Schwartzberg is a pioneering artist who has filmed some stunning footage of mushrooms growing over the course of 40 years.
How to Draw a Circle Perfectly Freehand?
How to draw a circle perfectly? Learn this simple technique to help you draw a near-perfect circle freehand. It could be useful for drawing charts.
Why Elephants Never Forget?
It's a common saying, and for a long time, people have believed that elephants had extraordinary memories. Is this, however, correct?
Dennis Wildfogel: How Big is Infinity?
This math talk Investigates the mind-bending concept of the "infinity of infinities," which led mathematicians to unanswerable questions.
How Big is Our Universe?
Professor Brian Cox takes us on a journey from a small picnic on Earth to the deepest depths of space over ten billion light years away.
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