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অতীতের এপিসোডগুলি অনুসন্ধান করুন

TED-Ed এর অতীতের এপিসোডগুলি অনুসন্ধান করুন।

এই পডকাস্টের অন্যান্য পর্বগুলি৷

Light waves, visible and invisible

Each kind of light has a unique wavelength, but human eyes can only perceive a tiny slice of the full spectrum -- the very narrow range from red to violet. Microwaves, radio waves, x-rays and more are hiding, invisible, just beyond our perception. Here is a closer look at the waves we can't see. An…

Human sperm vs. the sperm whale - Aatish Bhatia

View full lesson: http://ed.ted.com/lessons/human-sperm-vs-the-sperm-whale-aatish-bhatiaTraveling is extremely arduous for microscopic sperm -- think of a human trying to swim in a pool made of...other humans. We can compare the journey of a sperm to that of a sperm whale by calculating the Reynold…

A brief history of alcohol - Rod Phillips

Trace the 7,000 year old history of alcohol, from its first known origins in China to cultures all over the world fermenting their own drinks.--Nobody knows exactly when humans began to create fermented beverages. The earliest known evidence comes from 7,000 BCE in China, where residue in clay pots…

Vampires: Folklore, fantasy, and fact - Michael Molina

Dig into the science and superstition behind the myth of vampires, and how it has persisted from ancient Mesopotamia to today.--The myth of the bloodsucking vampire has stalked humans from ancient Mesopotamia to 18th-century Eastern Europe, but it has differed in the terrifying details. So, how did…
Uncover the rich history of illuminated manuscripts and the often bizarre images that filled the margins of medieval books.--A rabbit attempts to play a church organ, while a knight fights a giant snail and a naked man blows a trumpet with his rear end. These bizarre images, painted with squirrel-h…
দাবি পরিত্যাগ: এই পৃষ্ঠায় এম্বেড করা পডকাস্ট এবং আর্টওয়ার্ক TED-Ed থেকে এসেছে, যা এর মালিকের সম্পত্তি এবং Listen Notes, Inc দ্বারা অনুমোদিত বা অনুমোদিত নয়৷