Water supply: Did you mean...?

In which John Green teaches you about water! So, we talk about resources a lot on Crash Course, and today is no exception. It turns out people can't live without water, which means it's absolutely necessary for civilization. Today John talks...

A panel from ceiling of the Sistine Chapel in the Vatican, Rome. The panel shows God separating the land from the waters. The ceiling was created between 1508 and 1512 CE by the Italian Renaissance artist Michelangelo (1475-1564 CE) and shows...

Drawing of a Japanese kappa, supposedly caught in 1801 in Mito domain. Illustration from an 1836 copy by Reikai of Suiko Kōryaku by Koga Tōan. The inscription reads: Height 3.5 shaku, weight 12 kamme. The chest protudes, the neck is short...

View of the garden area of the Praedia (estate) of Julia Felice in Pompeii. The large complex of properties was formed after the earthquake of 62 CE by incorporating previous buildings into a single urban villa. Its owner, Julia Felix, converted...

Black-figure hydria from Vulci, Etruria, attributed to the Micali Painter, c. 510-500 BCE. The British Museum, London This Italiote reproduction of the Greek naval invasion of Troy based on the Iliad is shaped around a bireme (diiris...

http://www.ted.com With wisdom and wit, Anupam Mishra talks about the amazing feats of engineering built centuries ago by the people of India's Golden Desert to harvest water. These structures are still used today — and are often superior...

Thousands of years ago, Persians created an ingenious system to provide water across their arid landscape. They tapped aquifers at the heads of valleys and designed tunnels that utilized gravity to send the water to settlements. It's now...

In the Ladakh region of northwestern India's Himalayas, residents have taken the fight for water into their own hands. With glaciers melting and retreating because of climate change, the impending drought threatens to destroy their livelihoods...

Meet the engineers who build glaciers from scratch to help isolated villages in Ladakh, the northern most province of India. Sonam Wangchuk’s team hope that when the man-made sculptures melt, they will provide water in times of need.

In which Mike teaches you about the creation of the universe, with sex. This week we're talking about creations stories from Egypt, West Africa, Greece, China, and Persia that have a lot in common with human sexual reproduction. And also...