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In celebration of the 100th anniversary of Einstein's general theory of relativity, leaders from multiple fields of physics discuss its essential insights, its lingering questions, the latest work it has sparked, and the allied fields of research that have resulted.
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Original Program Date: 05/30/2015
Host: Brian Greene
PARTICIPANTS: Gabriela González, Samir Mathur, Andrew Strominger, Cumrun Vafa, Steven Weinberg
Introduction with Brian Greene 00:00
Participant Introductions 04:25
What aspect of physics is so important that you would tattoo it on your body? 08:05
Steven Weinberg takes us from Newton to Einstein. 12:05
What was the observational support for Einstein theories? 19:20
Can Newtons ideas be extracted from Einstein's? 23:40
What did Einstein think about the Big Bang? 30:58
What did Hubble's observations discover? 33:39
What is the biggest unsolved problem in cosmology? 38:03
What is the history of Black Holes? 40:31
Einstein's thoughts on singularity. 47:33
What is a gravitational wave? 50:49
What does a gravitational wave sound like? 57:52
Combining General relativity and Quantum mechanics. 01:00:28
Cumrun Vafa on String theory. 01:10:50
Samir Mathur explains information loss at a black hole. 01:17:45
Black Holes to Wormholes. 01:28:45
Is the fabric of space time a physical thing? 01:32:24
What is the one question you would want answered in your lifetime? 01:36:37
Welcome to the 'Amazing People of Africa' series where we take a look at the many indigenous people of Africa. Today we are looking at the African Hair Care Secrets that Gives Wodaabe Women the Healthiest Hair on the Planet.
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Translated titles:
Secretos africanos para el cuidado del cabello que le dan a las mujeres Wodaabe el cabello más salu
Afrikanische Haarpflege-Geheimnisse, die Wodaabe-Frauen das gesündeste Haar der Welt geben
Secrets de soins capillaires africains qui donnent aux femmes Wodaabe les cheveux les plus sains de
Os segredos dos cuidados com os cabelos africanos que proporcionam às mulheres Wodaabe o cabelo mai
अफ्रीकी हेयर केयर सीक्रेट्स जो वोडाब
أسرار العناية بالشعر الأفريقية التي تمنح المرأة Wodaabe أ
非洲护发的秘诀,使沃达阿贝的女性拥有地球上最健康的头发
Siri za Utunzaji wa Nywele za Kiafrika ambazo huwapa Wodaabe Wanawake Nywele zenye Utajiri zaidi kwe
We were so surprised to find the uniquely designed Wulugu Mud House on our way to Bolgatanga. We couldn't believe our eyes to see such marvel, basically in the middle of nowhere. An entire palace made out of mud and wood and it's built in a way which leads cold air in and hot air out, basically being cooled be a natural air conditioning.
There are so many more interesting facts about the Wulugu Mud House which we will write about it soon on our Ghana Tavel Blog:
https://ghana.for91days.com/
But I want to share one really cool thing about the mud house, the wall surrounding it, is in the shape of Ghana. Don't believe me? Well then see for yourself: 0:50
This video was recorded with this drone:
https://for91days.com/go/mydrone19
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