422 search results
Laser surface treatment
Science, Maths & Technology

Laser surface treatment

...carbon steel. Cooling rates as high as 104°C s-1 are possible. The “operating window” for surface hardening depends on the laser power, beam diameter and traverse rate for a particular material. Typical uses include the production of wear patterns in ferritic malleable iron power-steering housings and alloy cast iron cylinder liners. Cladding There are two methods of...
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Article 10 mins
Putting algae and seaweed on the menu could help save our seafood
Science, Maths & Technology

Putting algae and seaweed on the menu could help save our seafood

...carbon dioxide (CO₂) in the atmosphere, which is making the oceans warmer and more acidic, are also a significant threat to marine life. There is potential to increase ocean food production but, under these conditions, eating more of the species at the top of the food chain, such as tuna and salmon, is just not sustainable. As a recent EU report highlighted, we should...
View article Putting algae and seaweed on the menu could help save our seafood
Article 10 mins
When is the best time to water during a heatwave?
Nature & Environment

When is the best time to water during a heatwave?

...carbon dioxide in, oxygen out – during photosynthesis. In high light levels, on sunny days, a lot of carbon dioxide is fixed to make sugars by photosynthesis. Loss of water is also important to cool plants on hot days. If plants run short of water they shut down their stomata and photosynthesis stops and is replaced by photorespiration – a process that releases carbon...
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Article 5 mins
Nuclear power: friend or foe?
Society, Politics & Law

Nuclear power: friend or foe?

...carbon economy’, Sustainable Development Commission, 2006 A series of eight evidence-based papers on aspects of nuclear energy and a commentary paper. The whole set of papers can be found by searching for ‘Is nuclear the answer?’ and referring to the Sustainable Development Commission. Both sources are very long and detailed and you are not expected to read through...
View course Nuclear power: friend or foe?
Level 2: Intermediate 2 hrs
Discovering chemistry Badge icon
Science, Maths & Technology

Discovering chemistry

...carbon-12 open cap c 612 close isotope. How many protons and neutrons does cap c 612 contain? Answer Six protons and six neutrons. Atomic mass is expressed in terms of so-called atomic mass units (amu). Where 1 amu = 1.661 x 10-24 g This number is equal to one twelfth of the mass of an atom of carbon-12. Every element is assigned an atomic mass, which is its mass relative...
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Level 1: Introductory 24 hrs
SMEs and Net Zero – challenges and opportunities
Money & Business

SMEs and Net Zero – challenges and opportunities

...carbon emissions, plus other environmental problems, such as air and water pollution. SMEs are also important in other ways, including the influence they can have on the environmental behaviours of staff, customers and local communities. [Two people on a motor scooter riding through a flooded urban street at night with illuminated shopfronts] Two people on a motor scooter...
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Article 10 mins
COP26 Glasgow and questions of environmental and social justice
Society, Politics & Law

COP26 Glasgow and questions of environmental and social justice

...footprint’, being a key player in the UK’s industrial revolution, the so-called ‘second city of the Empire’. Glasgow was particularly famous for shipbuilding, locomotive manufacture, engineering and carpet works. These industrial processes had direct environmental and health impacts on a densely populated and growing urban landscape. To provide a workforce, people...
View article COP26 Glasgow and questions of environmental and social justice
Article 15 mins
Fighting Food Waste
Nature & Environment

Fighting Food Waste

...carbon emissions. Ann discusses the facts of why food waste is a problem for the planet, but also the simple tricks we can use to do something about it - saving those sad-looking vegetables or sausages from the bin and turning them into something delicious. What would you do with leftover mashed potato? Transcript [Aerial view of a forest] For more ideas on living...
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Video 50 mins