In this video. let us understand the terminology and basic concepts of Mathematical Modeling.
Link for the complete playlist.
https://youtube.com/playlist?l....ist=PLKR57ZbLAFd7qx7

Not everything that is true can be proven. This discovery transformed infinity, changed the course of a world war and led to the modern computer. This video is sponsored by Brilliant. The first 200 people to sign up via https://brilliant.org/veritasium get 20% off a yearly subscription.

Special thanks to Prof. Asaf Karagila for consultation on set theory and specific rewrites, to Prof. Alex Kontorovich for reviews of earlier drafts, Prof. Toby ‘Qubit’ Cubitt for the help with the spectral gap, to Henry Reich for the helpful feedback and comments on the video.

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References:

Dunham, W. (2013, July). A Note on the Origin of the Twin Prime Conjecture. In Notices of the International Congress of Chinese Mathematicians (Vol. 1, No. 1, pp. 63-65). International Press of Boston. — https://ve42.co/Dunham2013

Conway, J. (1970). The game of life. Scientific American, 223(4), 4. — https://ve42.co/Conway1970

Churchill, A., Biderman, S., Herrick, A. (2019). Magic: The Gathering is Turing Complete. ArXiv. — https://ve42.co/Churchill2019

Gaifman, H. (2006). Naming and Diagonalization, from Cantor to Godel to Kleene. Logic Journal of the IGPL, 14(5), 709-728. — https://ve42.co/Gaifman2006

Lénárt, I. (2010). Gauss, Bolyai, Lobachevsky–in General Education?(Hyperbolic Geometry as Part of the Mathematics Curriculum). In Proceedings of Bridges 2010: Mathematics, Music, Art, Architecture, Culture (pp. 223-230). Tessellations Publishing. — https://ve42.co/Lnrt2010

Attribution of Poincare’s quote, The Mathematical Intelligencer, vol. 13, no. 1, Winter 1991. — https://ve42.co/Poincare

Irvine, A. D., & Deutsch, H. (1995). Russell’s paradox. — https://ve42.co/Irvine1995

Gödel, K. (1992). On formally undecidable propositions of Principia Mathematica and related systems. Courier Corporation. — https://ve42.co/Godel1931

Russell, B., & Whitehead, A. (1973). Principia Mathematica [PM], vol I, 1910, vol. II, 1912, vol III, 1913, vol. I, 1925, vol II & III, 1927, Paperback Edition to* 56. Cambridge UP. — https://ve42.co/Russel1910

Gödel, K. (1986). Kurt Gödel: Collected Works: Volume I: Publications 1929-1936 (Vol. 1). Oxford University Press, USA. — https://ve42.co/Godel1986

Cubitt, T. S., Perez-Garcia, D., & Wolf, M. M. (2015). Undecidability of the spectral gap. Nature, 528(7581), 207-211. — https://ve42.co/Cubitt2015

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Special thanks to Patreon supporters: Paul Peijzel, Crated Comments, Anna, Mac Malkawi, Michael Schneider, Oleksii Leonov, Jim Osmun, Tyson McDowell, Ludovic Robillard, Jim buckmaster, fanime96, Juan Benet, Ruslan Khroma, Robert Blum, Richard Sundvall, Lee Redden, Vincent, Marinus Kuivenhoven, Alfred Wallace, Arjun Chakroborty, Joar Wandborg, Clayton Greenwell, Pindex, Michael Krugman, Cy 'kkm' K'Nelson, Sam Lutfi, Ron Neal

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Written by Derek Muller, Adam Becker and Jonny Hyman
Animation by Fabio Albertelli, Jakub Misiek, Iván Tello and Jonny Hyman
Math City Animation by Another Angle 3D Visuals (www.anotherangle.ee)
Filmed by Derek Muller and Raquel Nuno
Edited by Derek Muller
Music and SFX by Jonny Hyman Additional Music from Epidemic Sound
Additional video supplied by Getty Images
Thumbnail by Geoff Barrett
Associate Producers: Petr Lebedev and Emily Zhang

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Mounting evidence suggests a lot of published research is false.
Check out Audible: http://bit.ly/AudibleVe
Support Veritasium on Patreon: http://bit.ly/VePatreon

Patreon supporters:
Bryan Baker, Donal Botkin, Tony Fadell, Jason Buster, Saeed Alghamdi

More information on this topic: http://wke.lt/w/s/z0wmO

The Preregistration Challenge: https://cos.io/prereg/

Resources used in the making of this video:

Why Most Published Research Findings Are False:
http://journals.plos.org/plosm....edicine/article?id=1

Trouble at the Lab:
http://www.economist.com/news/....briefing/21588057-sc

Science isn't broken:
http://fivethirtyeight.com/fea....tures/science-isnt-b

Visual effects by Gustavo Rosa

This is an excerpt from the luncheon keynote presentation of Dr. Wade Nobles at the 2006 CHEIKH ANTA DIOP Conference in Philadelphia, Pa. Presentation titled, 'AFRICAN RESURGENCE: The Concept of Seeking the Sakhu.

HAPI Talks with HAPI Cast Member Dr. Wade Nobles about the need for African Institutions.

Please visit www.hapifilm.com to get a copy of the Groundbreaking documentary film HAPI and all the latest HAPI gear.

Don't forget to LIKE, SHARE & SUBSCRIBE to our channel so that we can continue to bring you excellent programming.

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The Pan African Daily TV- is the first of its kind and the only Media Network under this name. (PDTV) is inspired by an iconic leader, Susan Enih Tatah’s heart and creativity in bringing African worldwide for unity, development of Motherland and self. Her Instincts is contaminating and is the magnetism of the channel. Dr Susan Tatah & Team provides leadership in programming and attracts Africa’s best talents and strong voices, advocates for Africa’s development to join her in daily conversations, building a global community of concious like minded viewers as well as lead that community to connect on her social media spaces. PDTV is a signature destination, with Dr Susan Tatah as the new female face for Africa with a heart, star power, connections and endless possibilites. The Pan African Daily TV communication is a non-profit venture of the Africa we want with longterm sustainability goals. The Network debuted in April 2020, is the fastest growing reaching out to 100+ million viewers across Africa and Diaspora.

⁣Kilimo na Biashara: Herbs farming - Kenya | 4 June 2021

In this video, Robert explains his process for creating a PVC drip irrigation system for his raised square foot garden.

Robert also shows how he is using his rain barrel water system that can be controlled by his smart phone to turn the drip irrigation system on and off.

A comparison between class 200 and schedule 40 PVC is also performed, and Robert explains his thoughts between the two types.

Overall, Robert’s goal was to keep the overall cost low for creating a DIY PVC drip irrigation system but also making the system easy to disassemble, reassemble and flexible for different types of gardens.

Video Links:
►Smart WiFi Relay (Control Rain Barrel Water Pump Remotely): https://youtu.be/cLKAEB7Xl2k
►Rain Barrel Water Pump: https://youtu.be/opgxarh0G9Q

Below you can find the majority of the parts and cut dimensions Robert used in the video.

Parts / Items Used In Video:
► PVC Pipe - https://www.homedepot.com/p/Ch....arlotte-Pipe-3-4-in-
► PVC Ball Valve - https://amzn.to/3f7igVO
► PVC Tee - https://amzn.to/3f5u2jF
►PVC 90 Degree Elbow - https://amzn.to/2QFDeC2
►PVC Male Adapter - https://www.homedepot.com/p/Ch....arlotte-Pipe-3-4-in-
►PVC FNPT x FHT Swivel (Garden Hose Adapter) - https://www.homedepot.com/p/3-....4-in-FNPT-x-FHT-PVC-
►PVC End Cap - https://amzn.to/3oBn899
►Oatey PVC Primer & Cement - https://amzn.to/3bGAU55
►Telfon Tape - https://amzn.to/3oBStYY

►1/16” Drill Bit - https://amzn.to/3f5sN47
►3” Exterior Screws - https://amzn.to/3f72NW8
►EXPO Black Marker - https://amzn.to/3oBRNCU

►Power Drill - https://amzn.to/2SaWYOn

Optional Items:
►Quick Grip Clamps (Kit): https://amzn.to/39Iripd​


PVC Cut Dimensions & Quantity
►5x - 68-3/4”
►5x - 2-3/4”
►4x - 10-1/2”
►2x - 2-1/2”

10th June 1940, The Most Honourable & Eminent Prophet, Marcus Mosiah Garvey, transitioned to meet the Ancestors. To mark the day, I am going shares some ideas of what Papa Garvey means by "Look For Me In The Whirlwind" & what the future of Universal Afrikan Nationalism look like.

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To stay tuned, check out the channel YouTube.com/ShakaRaSpeaks

Watch All Reflections: https://www.youtube.com/watch?v=HLprLQX3Dms&list=PL-gMpPbGvuj1ydTRKKF4qTSeEhYz6zp8o

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Land Degradation
African Farming
Conservation Agriculture
Sustainable Land and Water Management
Food Security and Healthy Environments
Climate Change
EcoAgriculture