Science, Tech, Engineering and Math

Shabaka
5 Views · 17 days ago

https://www.lulu.com/en/us/shop/afric...

Electromagnetic Radiation, Light, Thermal Radiation, Incandescence, White Light, Laser, Refraction, Prism, Additive Color, Subtractive Color, Damballah, Ayida Weddo, rainbow serpent, Oshunmare, Spectralon, Whitest White, White Body, Black 2.0, Black 3.0, Super Black, Vantablack, Vertically Aligned Carbon Nanotube Arrays, Blackest Black, Black Body, Lord of the Perfect Black, Kem-ur, Kem-wer, The Great Black One, Ausar, Osiris

Kwabena Ofori Osei
11 Views · 28 days ago

Chinese tech giant Huawei Technologies launched its latest premium smartphone boasting new technological breakthroughs on Tuesday (Nov 26). The Mate 70 series is seen as proof that Huawei has made further progress in pivoting to self-reliance despite US sanctions. CNA’s Tan Si Hui reports.

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Kwabena Ofori Osei
7 Views · 1 month ago

How do black holes get giant jets? Neil deGrasse Tyson breaks down the anatomy of black holes and how the newly discovered black hole, Porphyrion, got the largest x-ray jets in the universe. Learn about accretion disks, x-ray satellites, and the first black hole ever found.

Timestamps:
00:00 - Introduction: Black Hole Jets
00:23 - The Anatomy of a Black Hole
02:23 - How You Get Jets
03:37 - Porphyrion
05:31 - Detecting the First Black Holes

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Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!

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Kwabena Ofori Osei
5 Views · 2 months ago

PBS Member Stations rely on viewers like you. To support your local station, go to http://to.pbs.org/DonateEons
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The Best-Of Nature League: https://www.youtube.com/playli....st?list=PLZftFO1i4jN

The ability to make and use fire has fundamentally changed the arc of our evolution. The bodies we have today were, in many ways, shaped by that time when we first tamed fire.

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

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References:
http://humanorigins.si.edu/evi....dence/human-fossils/
http://humanorigins.si.edu/evi....dence/human-fossils/
Alperson-Afil, N. (2008). Continual fire-making by hominins at Gesher Benot Ya ‘aqov, Israel. Quaternary Science Reviews, 27(17-18), 1733-1739.
Barkai, R., Rosell, J., Blasco, R., & Gopher, A. (2017). Fire for a reason: Barbecue at middle Pleistocene Qesem cave, Israel. Current Anthropology, 58(S16), S314-S328.
Berna, F., Goldberg, P., Horwitz, L. K., Brink, J., Holt, S., Bamford, M., & Chazan, M. (2012). Microstratigraphic evidence of in situ fire in the Acheulean strata of Wonderwerk Cave, Northern Cape province, South Africa. Proceedings of the National Academy of Sciences, 109(20), E1215-E1220.
Blain, H. A., Agustí, J., Lordkipanidze, D., Rook, L., & Delfino, M. (2014). Paleoclimatic and paleoenvironmental context of the Early Pleistocene hominins from Dmanisi (Georgia, Lesser Caucasus) inferred from the herpetofaunal assemblage. Quaternary science reviews, 105, 136-150.
Carmody, R. N., & Wrangham, R. W. (2009). The energetic significance of cooking. Journal of Human Evolution, 57(4), 379-391.
Clark, J. D., & Harris, J. W. (1985). Fire and its roles in early hominid lifeways. African Archaeological Review, 3(1), 3-27.
Gowlett, J. A. (2016). The discovery of fire by humans: a long and convoluted process. Philosophical Transactions of the Royal Society B: Biological Sciences, 371(1696), 20150164.
Gowlett, J. A., & Wrangham, R. W. (2013). Earliest fire in Africa: towards the convergence of archaeological evidence and the cooking hypothesis. Azania: Archaeological Research in Africa, 48(1), 5-30.
Hlubik, S., Berna, F., Feibel, C., Braun, D., & Harris, J. W. (2017). Researching the nature of fire at 1.5 Mya on the site of FxJj20 AB, Koobi Fora, Kenya, using high-resolution spatial analysis and FTIR spectrometry. Current Anthropology, 58(S16), S243-S257.
MacDonald, K. (2017). The use of fire and human distribution. Temperature, 4(2), 153-165.
Pruetz, J. D., & LaDuke, T. C. (2010). Brief communication: Reaction to fire by savanna chimpanzees (Pan troglodytes verus) at Fongoli, Senegal: Conceptualization of “fire behavior” and the case for a chimpanzee model. American Journal of Physical Anthropology: The Official Publication of the American Association of Physical Anthropologists, 141(4), 646-650.
Roebroeks, W., & Villa, P. (2011). On the earliest evidence for habitual use of fire in Europe. Proceedings of the National Academy of Sciences, 108(13), 5209-5214.
Zink, K. D., & Lieberman, D. E. (2016). Impact of meat and Lower Palaeolithic food processing techniques on chewing in humans. Nature, 531(7595), 500.

Kwabena Ofori Osei
6 Views · 2 months ago

PBS Member Stations rely on viewers like you. To support your local station, go to http://to.pbs.org/DonateEons
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Check out our other journeys through geologic time here :
https://www.youtube.com/playli....st?list=PLi6K9w_UbfF

After taking you on a journey through geologic time, we've arrived at the Cenozoic Era. Most of the mammals and birds that you can think of appeared during this era but perhaps more importantly, the Cenozoic marks the rise of organisms that look a lot like us.

Thanks to Sean Murtha for the wonderful illustration of Tsidiiyazhi. Check out more of Sean's work here: http://www.seanmurthaart.com

And thanks to Ceri Thomas for the very cool Titanoboa reconstruction. Check out more of Ceri's paleoart at http://alphynix.tumblr.com and http://nixillustration.com

And as always thanks to Nobumichi Tamura for allowing us to use his wonderful paleoart: http://spinops.blogspot.com/

Thanks to Studio 252mya for their illustrations. You can find more of their work here: https://252mya.com/licensing

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References:
http://www.ucmp.berkeley.edu/e....ducation/events/cowe
http://science.sciencemag.org/....content/327/5970/121
https://www.sciencedaily.com/r....eleases/2010/01/1001
https://www.sciencedaily.com/r....eleases/2009/01/0901
http://journals.plos.org/plosb....iology/article?id=10
http://www.paleocene-mammals.de
http://www.paleocene-mammals.de/primates.htm
http://www.paleocene-mammals.de/condylarths.htm
http://www.pnas.org/content/114/30/8047
http://www.sciencemag.org/news..../2017/07/tiny-fossil
https://books.google.com/books?id=9GXdGiZyzNAC&pg=PA52
https://www.nature.com/scitabl....e/knowledge/library/
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.502.8153&rep=rep1&type=pdf
http://sp.lyellcollection.org/content/101/1/401
https://agupubs.onlinelibrary.....wiley.com/doi/pdf/10
https://www.geolsoc.org.uk/Geo....scientist/Archive/Ju
https://research.amnh.org/pale....ontology/perissodact
https://www.britannica.com/science/Eocene-Epoch
https://paleonerdish.wordpress.....com/2015/08/17/clim
http://www.donaldprothero.com/files/47440402.pdf
http://palaeos.com/cenozoic/ol....igocene/oligocene.ht
http://journals.plos.org/ploso....ne/article?id=10.137
http://www.jstor.org/stable/2407816
http://www.pbs.org/wgbh/evolut....ion/change/deeptime/
https://www.nature.com/scitabl....e/knowledge/library/
https://www.britannica.com/science/Miocene-Epoch
https://sciencing.com/climate-....miocene-period-4139.
http://www.pbs.org/wgbh/evolut....ion/change/deeptime/
http://www.pbs.org/wgbh/evolut....ion/change/deeptime/
https://www.nature.com/scitabl....e/knowledge/library/
http://www.pnas.org/content/104/4/1159&sa=D&ust=1525092391891000&usg=AFQjCNGJNeJxKQiON8lkDaW_nB3kCbtUSg
https://www.researchgate.net/p....ublication/234272869
https://www.nature.com/scitabl....e/knowledge/library/
https://openscholarship.wustl.edu/etd/95/
http://www.pnas.org/content/103/12/4381
https://www2.palomar.edu/anthr....o/earlyprimates/earl
http://rspb.royalsocietypublis....hing.org/content/276
http://www.pnas.org/content/105/32/11093 oldest simian
https://pubs.geoscienceworld.o....rg/geology/article-l
https://www.sciencedirect.com/....science/article/pii/
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC42640
http://www.pnas.org/content/96/25/14664
https://www.nature.com/scitabl....e/knowledge/library/
https://www.researchgate.net/p....ublication/262563845
https://www.scientificamerican.....com/article/planet-
http://www.latimes.com/science..../sciencenow/la-sci-s
http://rstb.royalsocietypublis....hing.org/content/365
https://www.nature.com/scitabl....e/knowledge/library/

Kwabena Ofori Osei
6 Views · 2 months ago

Does SpaceX have a role in furthering the frontier of space exploration? Neil deGrasse Tyson addresses comments on SpaceX’s trip to Mars, the role of public versus private enterprise in space exploration, and whether companies can afford to take the risks needed in space travel.

00:00 - Introduction: On Elon
00:46 - SpaceX vs. NASA
03:43 - Advancing Frontiers in Private Enterprise
6:18 - SpaceX’s Trip to Mars
7:30 - Artemis and Our Return to the Moon

Check out our second channel, @StarTalkPlus

Get the NEW StarTalk book, 'To Infinity and Beyond: A Journey of Cosmic Discovery' on Amazon: https://amzn.to/3PL0NFn

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About StarTalk:
Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!

#startalk #neildegrassetyson

Kwabena Ofori Osei
18 Views · 2 months ago

Debunking Lord Jamar on Godfrey's podcast

Enjoy!

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#flatearth #debate #debunk

Kwabena Ofori Osei
10 Views · 3 months ago

Where did our unique moon come from? It turns out that lunar rocks brought back by Apollo astronauts are a clue, pointing to the origin of our closest cosmic companion, an origin even stranger than you might imagine… Find out more about our Prehistoric Elephants here: https://complexly.info/mammoths*****PBS Member Stations rely on viewers like you. To support your local station, go to http://to.pbs.org/DonateEons*****Eons is a production of Complexly for PBS Digital Studios.Super special thanks to the following Patreon patrons for helping make Eons possible:Randall George, Morgan, Kevin Lacson, Marco Narajos, Collin Dutrow, Pope John XII, Aaditya Mehta, AllPizzasArePersonal, John H. Austin, Jr., Alex Hackman, Stephen Patterson, Odditeas , Karen Farrell, Jason Rostoker, Jonathan Rust, Mary Tevington, Bart & Elke van Iersel - De Jong, Irene Wood, Derek Helling, Mark Talbott-Williams, Nomi Alchin, Duane Westhoff, Hillary Ryde-Collins, Yu Mei, Albert Folsom, Heathe Kyle Yeakley, Dan Caffee, Nick Ryhajlo, Jeff GrahamIf you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards!Want to follow Eons elsewhere on the internet?Facebook - https://www.facebook.com/eonsshowTwitter - https://twitter.com/eonsshowInstagram - https://www.instagram.com/eons....show/#EonsReferences

Kwabena Ofori Osei
8 Views · 3 months ago

Let us travel through the universe to know the distances that separate us from planets, stars, galaxies and black holes.

If you liked the content, do not forget to subscribe and comment, your participation is very helpful.

tiktok.com/@estudioarkano facebook: @estudioarkano Telegram: https://t.me/estudioarkano

next awesome video "universe size comparison": https://youtu.be/TXfOzhZGtNw


How far is Mercury, Venus, Mars from our planet, Jupiter, Saturn, Neptune, Uranus and Pluto from our sun?
one day we will be able to make interstellar trips to see more closely the stars like betelgeuse, pistol star, poxiim centauri, uy scuti?
or intergalactic trips to the galaxy of andromeda?

Baka Omubo
11 Views · 4 months ago

In the past decades, public toilets in China generally had a bad reputation, they were often dirty and poorly maintained, making them unpleasant to use. In 1993 around only 7,5% of the rural areas in China had toilets, however, by the end of 2016 the figure has gone up to 80,3% and 85% by 2020.

🌟My other Channel: Tech me Around!
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🌟 Check my other videos about life in China 🌟

Shopping Malls in China:
https://youtube.com/playlist?l....ist=PL4c4Hx5Qzq8zM_N

Discover how is life in China as an Expat:
https://www.youtube.com/watch?v=eD8Alfoh-T0&list=PL4c4Hx5Qzq8xE6_Vdm0GcZbrNRWrLbxm4

Traveling to more than 30 different cities in China:
https://www.youtube.com/watch?v=-GUbpar1Mj4&list=PL4c4Hx5Qzq8wHb5TUSZn1x8no_ephn0m7

Discover Shanghai: the most awesome city in China:
https://www.youtube.com/watch?v=5OzAq1bi82U&list=PL4c4Hx5Qzq8wfLJJELvAhcInNnBj4XFR3

Experience with me these 5 star hotels in China:
https://www.youtube.com/watch?v=kqJUn-XLTjs&list=PL4c4Hx5Qzq8zApT7ySZ7_fq1HT0uKxn4D

The exciting capital of China: Beijing:
https://www.youtube.com/watch?v=iH2Vqt8gdnU&list=PL4c4Hx5Qzq8yI9dRgDArTRKIH8gufbOwp

This is how we live in the city of the future: Shenzhen
https://www.youtube.com/watch?v=eD8Alfoh-T0&list=PL4c4Hx5Qzq8zh7JMeQkGqjA4qTDeVapvA

Come with me to explore and live the Beijing Winter Olympic Games 2022:
https://www.youtube.com/watch?v=HMgfwSeHT80&list=PL4c4Hx5Qzq8xg-tNyG4-zol6TCnLIODYB

Explore the smallest and southernmost Province of China: Hainan Island
https://www.youtube.com/watch?v=z6dknM4nHo0&list=PL4c4Hx5Qzq8yfy3QRGjdQwS7rsn9DkiCP

This is how technology is evolving in China:
https://www.youtube.com/watch?v=QXnbf3ck06w&list=PL4c4Hx5Qzq8xdY2FqVKnkw9Cxro9wZch_

How modern and beautiful are the latest stadiums built in China:
https://www.youtube.com/watch?v=HMgfwSeHT80&list=PL4c4Hx5Qzq8zKlbf6FnoTCNEmXutcP29O

Traveling by train:
https://www.youtube.com/watch?v=PEcr8IU81Uc&list=PL4c4Hx5Qzq8xFrZWSITTToSY1Mh_Ueafr




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