1,185 search results
Full mould casting (evaporative pattern)
Science, Maths & Technology

Full mould casting (evaporative pattern)

...C). The vaporised polystyrene produces carbon which will diffuse into the surface of steel components, altering their composition. This is most serious for low carbon steel components, but can be avoided by coating the pattern with 2 or 3 coats of refractory slurry, then firing at approximately 1000°C. This removes the pattern, leaving a thin ceramic shell which is...
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Article 5 mins
Phosphating (non-electrolytic coatings)
Science, Maths & Technology

Phosphating (non-electrolytic coatings)

...C. Largest capacity available in the UK can treat up to 8 tons of 8 mm thick steel measuring 14 x 2 m for shipbuilding in a tank holding 122,000 litres of zinc phosphating solution. Chromate conversion coatings are produced by immersion into a tank of aqueous solution of chromic acid or chromium salts, such as sodium or potassium chromate or dichromate. Bonded...
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Article 10 mins
Melanoma: an emerging concern
Health, Sports & Psychology

Melanoma: an emerging concern

...C. The expected general survival rate for Stage II is between 80 to 90%. Stage III: This stage describes melanoma that has spread locally or through the network of tubes and tissues that runs throughout your body. Stage III is divided into four subgroups: A, B, C, or D. The expected general survival rate for Stage III varies between 30 to 90%, depending on how deeply the...
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Article 5 mins
Warming winters: How will the Winter Olympics adapt?
Health, Sports & Psychology

Warming winters: How will the Winter Olympics adapt?

...C and there are 40 fewer freezing days throughout the winter season. As with every winter Olympics since the 1980 Games in Lake Placid, the Milan-Cortina organisers will need to rely on artificial snow to ensure there is minimal disruption to the schedule of events. The production of artificial snow, or ‘technical snow’ as it sometimes called, requires significant...
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Article 5 mins
What is Critical Race Theory?
Education & Development

What is Critical Race Theory?

...online resource. Available at: https://www.bera.ac.uk/publication/critical-race-theory-crt (Accessed: 11 February 2021). Solorzano, D. and Yosso, T. (2000) ‘Toward a critical race theory of Chicana and Chicano education’, in C. Tejeda, C. Martinez and Z. Leonardo (eds) Demarcating the Border of Chicana(o)/Latina(o) Education. Cresskill, NJ: Hampton Press, pp. 38–45....
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Article 10 mins
What’s wrong with how nurses are portrayed in the media?
Health, Sports & Psychology

What’s wrong with how nurses are portrayed in the media?

...C. (2013) ‘The Image of Nursing: What It Is and How It Needs to Change’, In Professional Nursing Concepts, edited by A. Finkelman and C. Kenner, second edition, pp. 85–109. Jones Bartlett Publishing. Garcia, R.L. (2020) ‘Nurses Have an Essential Role in Promoting Accurate Health Messages’, Nursing Times. Hill, B. (2017) ‘Exploring the Development and Identity...
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Article 5 mins
Teaching secondary music
Education & Development

Teaching secondary music

...C, so we go, one, two, three, four. CHILDREN (SINGING) One, one two, one. One, two, three, two, one. One, two, three, four, three, two one. One, two, three, four, five, four, three, two, one. One, two, three, four, five, six, five, four, three, two, one. One, two, three, four, five, six, seven, six, five, four, three, two, one. One, two, three, four, five, six, seven,...
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Level 3: Advanced 11 hrs
What does an engineer look like?
Science, Maths & Technology

What does an engineer look like?

...C. Jemison (right) were mission specialists on board the STS-47 mission. Born on November 1, 1953 in Cocoa Beach, Florida, Dr. N. Jan Davis received a Master degree in Mechanical Engineering in 1983 followed by a Doctorate in Engineering from the University of Alabama in Huntsville in 1985. In 1979 she joined NASA Marshall Space Flight Center as an aerospace engineer. A...
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Article 5 mins