Dragon fruit is an exotic cactus that is found in Asia, Mexico, and parts of South America. It is not grown in North America or Africa, which is why the plant is not as common in these regions. Dragon fruit can be planted as ornamental plants, but they do bare delicious fruit that is rather tasty.

Which is why I was pleasantly surprised to see it growing pretty well in my Country Nigeria. Again, this is another confirmation to the humungous potentials of our country

Aquaponics combines two growing methods, aquaculture and hydroponics, to create a self-contained, well-balanced ecosystem. Fish are fed and raised in a tank and as gravity pulls the wastewater through a hydroponic garden, bacteria feed on the waste, breaking it down into essential nutrients for the plants to grow. The system then returns the cleaned water back to the fish reservoir so the process can begin again.

In this episode, Charles Collins shares his backyard aquaponic and hydroponic gardens where he's able to grow tilapia, leafy greens, peppers, herbs and so much more, all in the suburban desert. Together we grow!

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ABOUT PARAGRAPHIC

A story is more than a title. We are a small team of independent filmmakers focused on emerging interests. We love exploring the wide landscape of these enthusiast communities through personal stories from their most passionate creators. The underdog, the obsessed, the misunderstood, the ones who have committed everything to their craft. For them it's more than a hobby; it's a way of life.

From garage bakeries and gourmet mushrooms to vertical farming and worm composting, these stories will elevate your understanding and deepen your appreciation.

Look beyond the impression.

#aquaponics #hydroponics #aquaculture

Please turn on subtitles with the CC (Closed Captions) button to see the explanatory annotations designed for educators.

Transcript of closed captions:

0:05: We are approaching a redwood tree. To animate a scientifically accurate leaf, artists studied the texture of a redwood leaf specimen on a glass slide at high resolution. They even counted the stomata, and used that exact count for this film!

0:25: These leaves would be measured on a centimeter scale. Throughout the animation, we will gradually zoom in to smaller scales.

0:40: As we approach a single stoma, we are now on a millimeter scale.

0:48: As we enter the interior of the leaf, we see many individual palisade cells. These cells are where photosynthesis takes place; they are translucent to allow sunlight to enter.

1:00: As we approach a single palisade cell, we’ll zoom down to the micrometer scale. The shapes inside the cell are organelles: the bright globules at the bottom are the Golgi apparatus; the yellow spotted tubes are endoplasmic reticulum studded with ribosomes.

1:09: That large, blue membrane surrounds the nucleus; the purple blobs are mitochondria.

1:18: The faint, yellow, spider-web structure of the cytoskeleton provides structure and support to the cell.

1:24: You are about to enter a chloroplast; inside you see flat, pancake-like membranous structures called thylakoids. This is where the light-dependent reactions of photosynthesis take place to produce ATP, the cell’s energy carrier molecule. way


1:38: The time scale has changed: the molecules are shown moving 1 million times slower than in real life!

1:42: As we near an individual thylakoid, the animation scale continues to shrink down to the molecular level, where things are measured in nanometers.


1:52: The green and blue bush-like structures are photosystems: clusters of proteins that absorb light energy from the sun and help convert it into the chemical energy that’s stored in the bonds of the energy carrier molecule called ATP.

2:03: The yellow-green, rotating structure is an enzyme called ATP synthase. This molecular machine facilitates the flow of protons down their concentration gradient from one side of the thylakoid membrane to the other, using the energy released in the process to assemble ATP.

2:16: The pulses of light in the thylakoid membrane in which the photosystems are embedded represent energized electrons being passed from one photosystem to another, passing along the energy which will be stored in the bonds of ATP (the classic “bucket brigade”).

2:26: The small “wigglies” are ATP molecules. Living things store energy in the bonds of the ATP molecules and then use that energy to conduct all the processes of life.

This animation is a model, and has its strengths and limitations. In order to model something well, visual artists have to make decisions about what to represent and how best to do so. What’s present in this model, and what’s intentionally missing or altered? Find out by visiting https://www.calacademy.org/edu....cators/travel-deep-i
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The California Academy of Sciences is a renowned scientific and educational institution dedicated to exploring, explaining, and sustaining life on Earth. Based in San Francisco’s Golden Gate Park, it's the only place in the world to house an aquarium, planetarium, rainforest, and natural history museum—plus cutting-edge research programs—all under one living roof.

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⁣When the Soviet Union collapsed in 1990, Cuba's economy went into a tailspin. With imports of oil cut by more than half – and food by 80 percent – people were desperate. This film tells of the hardships and struggles as well as the community and creativity of the Cuban people during this difficult time. Cubans share how they transitioned from a highly mechanized, industrial agricultural system to one using organic methods of farming and local, urban gardens. It is an unusual look into the Cuban culture during this economic crisis, which they call "The Special Period." The film opens with a short history of Peak Oil, a term for the time in our history when world oil production will reach its all-time peak and begin to decline forever. Cuba, the only country that has faced such a crisis – the massive reduction of fossil fuels – is an example of options and hope.


www.powerofcommunity.org

⁣Borehole Drilling in Ghana | 2020

Clean water and sanitation for all by 2030.
How can a Self-supply chain of Simple Market based Affordable Repairable Technologies (SMART) help reaching this goal?

Presented at WEDC 2017.

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What do trees talk about? In the Douglas fir forests of Canada, see how trees “talk” to each other by forming underground symbiotic relationships—called mycorrhizae—with fungi to relay stress signals and share resources with one another.
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#NationalGeographic #Trees #Nature

About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

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Read ‘Talking Trees’ in the June 2018 issue of National Geographic magazine to learn more about the Douglas fir forests of Canada and the work of forest ecologist Suzanne Simard.

How Trees Secretly Talk to Each Other in the Forest | Decoder
https://youtu.be/7kHZ0a_6TxY

National Geographic
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ORFC Global 2021 Session

Communities globally are facing unprecedented strain from climate collapse, soil degradation and commercial pressures. However, a return to older varieties of crops vital to the health and wellbeing of growers and their communities has presented a promising and enriching path forward. Drawing from grassroots experiences around the world from farmers in South Africa, China, and Wales this session explores the opportunities our heritage grains present to us to reconnect with more resilient, diverse crops and vibrant traditions through a discussion of millet, rice, and oats and the people who grow them. Although climates, conditions, and situations may differ, the growers offer universal advice on reviving connections to these life-giving grains and aim to inspire similar action in other communities.

Speakers:
Method Gundidza
Gerald Miles
Zhengxi Yang

Chair:
Sinéad Fortune

#ORFCGlobal​
https://orfc.org.uk/

Africa's Largest Dam: Geopolitics of the Nile

The dam is at the center of Ethiopia’s bid to become Africa’s biggest power exporter. Economic growth in Ethiopia, which is Africa’s second-most populous nation, has been stifled by a lack of electricity. Industry revenues are decimated by the nightmare of daily, unpredictable power cuts. The dam’s power will also help with similar problems in Sudan, Kenya and Djibouti, all of which are connected to Ethiopia’s grid and will begin importing power from it in the coming years. Long but futile negotiations over the years have left Egypt and Ethiopia and their neighbor Sudan short of an agreement to regulate how Ethiopia will operate the dam and fill its reservoir.

Egypt, which is Africa’s third-most populous nation, relies on the Nile for more than 90% of its fresh water supplies and wants a legally binding treaty on how Ethiopia can use the Blue Nile’s waters. With the construction of the Dam (GERD) underway, a complex trans boundary water situation is at hand: the GERD is nearing completion, with no specific agreement yet on water sharing or reservoir operations. The dam can capture more than the average annual flow and can thus dramatically change the river’s flow. Although most Nile waters originate in Ethiopia, nearly all use occurs downstream in Egypt and Sudan. Egypt, fearing major disruptions to its access to the Nile’s waters, originally intended to prevent even the start of the GERD’s construction. In fact, Egypt has called the filling of the dam an existential threat. At this point, though, the GERD is nearly completed, and so Egypt has shifted its position to trying to secure a political agreement over the timetable for filling the GERD’s reservoir and how the dam will be managed, particularly during droughts. Thus the Geopolitics of the Nile has been a hot topic.

Sudan is caught between the competing interests of Egypt and Ethiopia. Although Khartoum initially opposed the construction of the GERD, it has since warmed up to it, citing its potential to improve prospects for domestic development. Nevertheless, Khartoum continues to fear that the operation of the GERD could threaten the safety of Sudan’s own dams and make it much more difficult for the government to manage its own development projects.