Anaxagoras

Teach Astronomy - Anaxagoras

http://www.teachastronomy.com/ In the 5th century BC Anaxagoras deduced the true cause of eclipses. He realized that the curved shadow of the Earth on the Moon during a lunar eclipse supported the idea that the Earth was round.  In fact, a sphere is the only three-dimensional object that,

From playlist 02. Ancient Astronomy and Celestial Phenomena

Distances to the sun and moon | Famous Math Problems 9 | NJ Wildberger

How far away from the earth are the sun and moon? This natural and important problem was first successfully tackled by the ancient Greeks, for whom astronomy was one of the most important motivations for developing mathematics. In this lecture we meet the thinking of Thales, Pythagoras, An

From playlist Famous Math Problems

Presocratics Part 2: Mathematics, Atoms, and Logic

Continuing our examination of the Presocratic Greek philosophers, we examine some early formulations of mathematics, atomism, and logic. This will include figures from the Eleatic school, including Zeno and his famous paradoxes, and then moving on to the pluralists such as Anaxagoras and E

From playlist Philosophy/Logic

Were Volcanoes Ever Used For Human Sacrifice?

Episode 3 of 5 Check us out on iTunes! http://testtube.com/podcast Please Subscribe! http://testu.be/1FjtHn5 Man's relationship with volcanoes goes back thousands of years. What early man thought of these explosive mountains eventually helped science draw all sorts of new conclusions.

From playlist How Volcanoes Have Shaped The Earth And Universe

"Dreams of Other Worlds" Introduction Chapter

We're reading "Dreams of Other Worlds," a book about the history of unmanned space travel by Chris Impey and Holly Henry on our Twitch channel! Every week on Monday at 10am PST we read another chapter on our TeachAstronomy twitch channel and archive them here for anyone who misses it. Enjo

From playlist Dreams of Other Worlds Book Read

The BuShou of HanZi :囗

A brief description of the BuShou of 囗.

From playlist The BuShou of HanZi

NUMBERS: Pi (π) - Number of the Sky | Five numbers that changed the world | Cool Math

NUMBERS - secrets of Math. Mathematics is shrouded behind a veil and does not easily reveal itself. Students resort to rote memorization of math formulas to solve problems in a boring exercise of the mind that is also repetitive. However, if you knew the history of mathematics, the way the

From playlist Civilization

The BuShou of HanZi :禾

A brief description of the BuShou of 禾.

From playlist The BuShou of HanZi

Mod-01 Lec-05 Pythagoras and Heraclitus

History of Economic Theory by Dr. Shivakumar, Department of Humanities and Social Sciences IIT Madras, For more details on NPTEL visit http://nptel.iitm.ac.in

From playlist IIT Madras: History of Economic Theory | CosmoLearning.org Economics

The BuShou of HanZi :宀

A brief description of the BuShou of 宀.

From playlist The BuShou of HanZi

The BuShou of HanZi :目

A brief description of the BuShou of 目.

From playlist The BuShou of HanZi

The BuShou of HanZi :耳

A brief description of the BuShou of 耳.

From playlist The BuShou of HanZi

"Dreams of Other Worlds" Conclusion

We're reading "Dreams of Other Worlds," a book about the history of unmanned space travel by Chris Impey and Holly Henry on our Twitch channel! Every week on Monday at 9am PST we read another chapter on our TeachAstronomy Twitch channel and archive them here for anyone who misses it. Enjoy

From playlist Dreams of Other Worlds Book Read

The BuShou of HanZi :彳

A brief description of the BuShou of 彳.

From playlist The BuShou of HanZi

The BuShou of HanZi :舌

A brief description of the BuShou of 舌.

From playlist The BuShou of HanZi

The BuShou of HanZi :片

A brief description of the BuShou of 片.

From playlist The BuShou of HanZi

The BuShou of HanZi : 車

A brief description of the BuShou of 車.

From playlist The BuShou of HanZi

2020 Isaac Asimov Memorial Debate: Alien Life

Neil deGrasse Tyson, Frederick P. Rose Director of the Hayden Planetarium, hosts and moderates a lively discussion about how life might have formed on Earth and explores what alien life might look like elsewhere in the universe. What criteria do we use to classify life as we know it? Shoul

From playlist Space

The BuShou of HanZi :田

A brief description of the BuShou of 田.

From playlist The BuShou of HanZi

A History of the Infinite

Professor Adrian Moore journeys through philosophical thought on infinity over the last two and a half thousand years. This comes from a BBC radio series. For a good introduction to the philosophy of mathematics, check out: https://www.youtube.com/watch?v=UhX1ouUjDHE 00:00 Horror of the I

From playlist Logic & Philosophy of Mathematics