Crash course us history 43 - amusing
Originally, Paleo-Indian hunted Ice Age megafauna like mammoths , but as they began to go extinct, people turned instead to bison as a food source. As time went on, foraging for berries and seeds became an important alternative to hunting. Paleo-Indians in central Mexico were the first in the Americas to farm, starting to plant corn, beans, and squash around 8, BCE. Eventually, the knowledge began to spread northward. By 3, BCE, corn was being grown in the valleys of Arizona and New Mexico , followed by primitive irrigation systems and early villages of the Hohokam. Artifacts from this culture were first excavated in near Clovis, New Mexico. The Folsom culture was similar, but is marked by the use of the Folsom point.Crash course us history 43 Video
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What you'll learn
Reviews Rated 5 out of 5 by nerd99 from Long course but worth it. This course is a very long one but it is chock full of information. The 96 lectures present basically everything you need to know about the universe. From our own sun to black holes, Alex Filippenko presents a wide array of topics. The last lecture reflects on the course as a whole, and it was the best one.
I liked the animations and demonstrations that he showed us. All in all, this course was the best one I've watched so far. I highly recommend it. Date published: Rated 5 out of 5 by Gwick from Delightful, Profound 96 lectures was daunting, but in the end well worth the commitment. Professor F. Is a delightful, enthusiastic and academically top lecturer. He respects his audience and does not hold back in describing complex theory, advanced physics and astronomical knowledge.
He also explains coursd, the colors of the sky. I hope he will be able to update the last section of the course forbut is well worth taking regardless. Date published: Rated 5 out of 5 by lawrencepe from Excellent Course. Crash course us history 43 glad we found it! We are on 71 and already sorry to see the course coming to an end. Filipenko's slightly casual approach is disarming, and welcome, especially since his understanding is clearly multi-disciplinary and expansive.
So many new cosmic discoveries and NASA projects are built on information offered here, it makes current news much more relevant. This is a real science course, with real information that is useful and interesting. We learned a lot, we enjoyed the lecturer couree only regret we are so late in getting up to speed about the cosmos. Date published: Rated 5 out of 5 by Lerch from I bought this course last year, and I have been going through this course for many months. I particularly liked the lectures on black holes, and dark matter and dark energy.
It was explained in easy to understand terms. The lectures on the planets, exoplanets, relativity, were quite interesting as well.
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It was very thorough, but enjoyable to watch. Well done. This is an older course but it is still fascinating and relevant today. The teacher does an amazing job of explaining what science used to believe in the past, what we know today, and what we are hypothesizing about.]
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