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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...
View article Laser surface treatment
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...
View course Discovering chemistry
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
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...
View video Fighting Food Waste
Video 50 mins
Ben Van Beurden - Stories of Change
Nature & Environment

Ben Van Beurden - Stories of Change

...carbon part of it? First of all less carbon intensive fuels, so less coal, more natural gas – RH: Good for Shell? BVB: No, good for the planet, I would say. RH: Well and also good for Shell, you’re not in coal – BVB: We’re not any more in coal, we decided some time ago that coal had writing on the wall and that’s why we went out of it. Then higher energy...
View audio Ben Van Beurden - Stories of Change
Audio 5 mins