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Lucie Green takes us on a journey from the centre of the sun to planet earth in a run-down of the latest solar physics research.
Watch the Q&A here: https://www.youtube.com/watch?v=0JkxTILe2Nk
Lucie's book "15 Million Degrees: A Journey to the Centre of the Sun" is available to buy now - https://geni.us/2oB8V
110 times wider than Earth; 15 million degrees at its core; an atmosphere so huge that Earth is actually within it: come and meet the star of our solar system.
Light takes eight minutes to reach Earth from the surface of the Sun. But its journey within the Sun takes hundreds of thousands of years. What is going on in there? What are light and heat? How does the Sun produce them and how on earth did scientists discover this? Since the Royal Institution was founded in 1799 our knowledge of the Sun has changed dramatically and much of the work was carried out at the Ri.
Join Lucie Green for an enlightening talk, taking you from inside the Sun to its surface and to Earth, to discover how the Sun works, how a solar storm can threaten the modern technology that society relies on and more of the latest research in solar physics.
Lucie Green is a Professor of Physics based at the Mullard Space Science Laboratory, UCL’s Department of Space and Climate Physics. She studies activity in the atmosphere of our nearest star, the Sun. In particular, she looks at immense magnetic fields in the Sun’s atmosphere which sporadically erupt into the Solar System.
Lucie is very active in public engagement with science, regularly giving public talks and appearing on TV shows like Sky at Night.
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For many people in the world, they get their water supplied to them through pipes in their houses or apartment. However, for the rest of the world not hooked up to centralized water, they get their water through either private or public wells. ‘
Wells are some of the most essential components to developing a sustainable society. They provide a clean and reliable supply of water for drinking, bathing, and irrigation, even in locations where water on the surface is scarce.
Wells are essentially just holes in the ground filled with water, but they have more complexities than meets the eye. Let’s take a closer look at how wells work.
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Music:
Divider by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://chriszabriskie.com/divider/
Artist: http://chriszabriskie.com/
Brittle Rille - Reunited by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/r....oyalty-free/index.ht
Artist: http://incompetech.com/
Imagine transforming barren and empty landscapes into abundant food forests, layered with mangoes, legumes, garlic, herbs and corn.
SwaYYam in South India is doing just this by using agroforestry and alley cropping to revitalise soils, produce an abundance of crops and educate local farmers.
Agroforestry and alley cropping allow multiple crops to be stacked in one space, with tree crops providing shelter for low-lying plants and holding water in the soil with their roots. Fast growing biomass plants are used as groundcover and then as a mulch to feed the soil. Nitrogen-fixers make nitrogen available in the soil for other plants and a range of crops are grown for year-round food.
Swales and ploughing on the contour work with the land's orientation to maximise water capture. Deep irrigation and pitcher irrigation take water deep to the roots of trees, especially young sapling plantings.
SwaYYAm and their educational centre, Open Shell Farm, enables local farmers to learn regenerative farming methods, helping them create their own sustainable incomes through healthy soils and bountiful harvests.
SwaYYAm is a recipient of the 2020 Permaculture Magazine Prize: https://www.permaculture.co.uk..../articles/2020-perma
Malvikaa from SwaYYam shares the story of the project and some of their techniques in PM108: https://www.permaculture.co.uk/issue/summer-2021
📢 “Now, a lot of families are thriving and having good health, just from growing food in a sustainable way.” - Selina Nkoile for #IGrowYourFood 🇰🇪 Find out more about the global action day: https://campaigns.ifoam.bio/igrowyourfood
A Maasai farmer from Kenya, Selina founded the Nashipa Maasai Project, which has rescued more than 250 girls from early marriages by offering them an education and opportunity to learn about organic farming.
👩🏿🌾 MORE ABOUT THE NASHIPA MAASAI PROJECT: https://www.nashipaikenya.org/
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▶▶ SUPPORT IDEAS FOR UGANDA - https://ideasforus.org/uganda
It is estimated that by 2030 nearly 50% of the world's population may live in urban areas. Consequently, many millions of acres of productive farmland are expected to be lost to housing and industrial usage. In Uganda, the lack of appropriate farmland, low incomes, unemployment, and natural disasters have resulted in very poor food security. This makes the country’s chances of halving poverty and hunger by 2030 very slim. Uganda and other African countries need to increase agricultural productivity in a sustainable manner through innovative approaches, particularly in dense urban areas.
On top of this, Kampala is facing a major issue with urban waste management, where nearly 28,000 tons of waste are delivered to city landfills each month. However, according to the Kampala Capital City Authority, this represents only 40% of the waste generated in the city. The rest ends up in unauthorized sites. Often on city streets and in dense urban areas, causing significant environmental and human health problems.
So in 2014, a group of students at the Makerere University chapter of IDEAS For Uganda, led by Mr. Paul Matovu, developed an innovative approach to urban micro-gardening and integrated waste management in Kampala, a social enterprise called “Vertical Micro-Gardening” (VMG), the first of its kind in Uganda.