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Tag: Chankillo Observatory

Engines Podcast

Engines of Our Ingenuity 2203: The Chankillo Observatory

Dr. John Lienhard

Posted on March 28, 2022 · Episode: 2203 The Chankillo Observatory, first in the Western Hemisphere. Today, we learn the time of the year.

Tags anthropology calendars Chankillo Observatory fortified temple Incas Native American pre-Incan people solar observation summer winter solstices

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Engines Podcast

Engines of Our Ingenuity 2038: Leap Second

Dr. John Lienhard

Posted on January 6, 2023 · Episode: 2038 Putting a leap second in an elastic year. Today, we add a second to our lives.

Tags birth of Christ calendars cesium clock Earth's rotation measurement standards tidal friction timekeeping US Naval Observatory

Engines Podcast

Engines of Our Ingenuity 2410: The Vintage of Cave Art

Dr. John Lienhard

Posted on November 21, 2022 · Episode: 2410 Was cave art too good to have been made 30,000 years ago? Today, a new look at old art.

Tags anthropology archaeology art Aurignacian caves charcoal painting Cro Magnons flint Gravettian Grotte Chauvet human speech Magdalenian Michael Balter neanderthals radio carbon dating Stone Age

Engines Podcast

Engines of Our Ingenuity 2396: The Indus Valley

Dr. John Lienhard

Posted on November 7, 2022 · Episode: 2396 The Indus Valley: a third great ancient civilization coming to light. Today, the Indus Valley.

Tags Alexander the Great ancient technology anthropology archaeology civilization egypt Euphrates Valley Indus Valley Mesopotamia Nile Valley pakistan Tigris

Engines Podcast

Engines of Our Ingenuity 2346: Prehistoric Food

Dr. John Lienhard

Posted on October 7, 2022 · Episode: 2346 Sitting down to supper, 10,000 years ago. Today, what did we eat, long ago?

Tags anthropology archaeology barley eating food grains honey Jane Renfrew marrow meat nutrition oats Prehistoric Cookery Recipes Vegetarian

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