Exploring the protective systems that keep the power grid from self destructing.

We usually think of the power grid in terms of its visible parts: power plants, high-voltage lines, and substations. But, much of the complexity of power grid comes in how we protect it when things go wrong. When your power goes out, it’s easy to be frustrated at the inconvenience, but consider also being thankful that it probably means things are working as designed to protect the grid as a whole and ensure a speedy and cost-effective repair to the fault.

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-Website: http://practical.engineering

Writing/Editing/Production: Grady Hillhouse
Director: Wesley Crump

Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License
Source: https://www.youtube.com/watch?v=U6fBPdu8w9U

This video is sponsored by Hello Fresh.

Extraits de l'échange interactif entre le public et les Professeurs Théophile Obenga & Prince Kum'a Ndumbe III le 29 mai 2019 dans la salle multimédia de la fondation AfricAvenir International à Douala_Hommage rendu au Pr T. Obenga, digne fils de l'Afrique, les 28 et 29 mai 2019 par le prince Kum'a Ndumbe III et la fondation AfricAvenir International à Douala.

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The number of people living in poverty (on less than $1.90 per day (2011 PPP)) in Nigeria has risen significantly from an estimated 44.5 million in 1985, to approximately 82.5 million in 2009. Given this context, BIF Nigeria chose to intervene in agricultural markets, dairy, maize, cassava and aquaculture – with information & advisory services as a cross-cutting enabling market – in the hope that stimulating change in one market system might produce synergy and multiplier effects across other markets.
The dairy market was selected due to its potential to reach the poorest women in society, who are found in northern Nigeria. Nigeria is the largest producer of milk in
West Africa, producing nearly 560,000-570,000 tonnes per year or 13% of production in the region. Currently, Nigeria’s output of milk per cow per day is about 1 litre, compared to other African countries like Kenya and Uganda with between 30 to 40 litres of milk per cow per day. Compared to Africa and Asia’s average of 0.9 million tonnes and 6.6 million tonnes, respectively, Nigeria’s 0.6 million tonnes of milk production is the lowest in the world.
Our vision of change for the dairy sector is to improve pastoralist returns from milk production through improved productivity and access to higher prices.

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⁣Prof. James Smalls & Milton Taka on BLACK SATURDAY in KUMBA, Southern Cameroons
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⁣Malcolm X - Breaking it Down: Betty Shabazz

⁣American Slave Narratives [Recorded 1941]

The first part of a compilation of audio recorded interviews with former slaves which were mostly taken in the 1930s and 1940s.

0:00 Introduction
2:09 Alice Gaston, Alabama (1941) (Good Audio Quality)
5:17 Isom Moseley, Alabama (1941) - (Mostly Good Audio Quality - Some Loud Background Noise at Points)
15:26 Joe McDonald, Alabama (1940) (Good Audio Quality)
19:17 Charlie Smith, Florida (1975) (Mostly Good Audio Quality - Some Background Noise)
48:25 Dave White, Georgia (1933) (Poor Audio Quality)
55:34 Wallace Quarterman, Georgia (1935) (Medium Audio Quality - Loud Background Noise - Watch Out for Loud Dog Barking Incredibly Loudly and There’s a Pause Halfway Through Before Singing Starts)
1:04:54 Wallace Quarterman, Georgia (1933) (Medium-Poor Audio Quality)
1:10:49 Fountain Hughes, Maryland (1949) (Good Audio Quality - Deceptively Loud in the Beginning)
1:40:06 George Johnson, Mississippi (1941) (Medium Audio Quality)
2:58:22 Irene Williams, Mississippi (1940) (Good Audio Quality - Watch Out for Loud Blare in the Beginning) -
3:11:42 Ann Scott, South Carolina (1932) (Medium Audio Quality - Very Loud in the Beginning)
3:20:22 Samuel Polite, South Carolina (1932) (Medium Audio Quality - Very Fuzzy)
3:29:38 Susan A. Quall, South Carolina (1932) (Medium Audio Quality)

Digitized Collections of the Transcripts of Around 2,300 Interviews With Former Slaves:
https://www.loc.gov/collection....s/slave-narratives-f


Alice Gaston - Gee’s Bend, Alabama
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1941018_afs05091b/

Isom Moseley - Gee’s Bend, Alabama
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1941018_afs05091a

Joe McDonald and unidentified woman - Livingstone, Alabama
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1940003_afs04033b/

Charlie Smith - Bartow, Florida
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1975023_afs17510

Dave White - St Simons Island, Georgia
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player):
https://www.loc.gov/item/afc1984011_afs25666a

Wallace Quarterman - Fort Frederica, St Simon’s Island, Georgia (1935)
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1935001_afs00342a/

Wallace Quarterman - St Simon’s Island, Georgia (1933)
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1984011_afs25665a

Fountain Hughes - Baltimore, Maryland
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1950037_afs09990a

George Johnson - Mound Bayou, Mississippi (1941)
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1941002_afs04777a

Irene Williams - Rome, Mississippi (1940)
Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1940003_afs04011a/

Ann Scott - St. Helena Island, South Carolina (1932)

Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1984011_afs25657a

Samuel Polite - St. Helena Island, South Carolina (1932)

Recording Part 1: (you can get the transcript by clicking on the link and clicking ‘PDF’ next to where it says ‘transcript’ just underneath the audio player): https://www.loc.gov/item/afc1984011_afs25656a