1,552 search results
Photochemical Machining (Photo-fabrication; Chemical milling)
Science, Maths & Technology

Photochemical Machining (Photo-fabrication; Chemical milling)

...careful design of photo-masters, but can be an advantage as it reduces stress concentrations. Surface finish depends largely on the surface of the initial material, but is typically in the range Ra = 1.6–6.3 μm. Surfaces show the grain structure of the metal, due to attack by the etchant. Dimensions and tolerances depend on material, thickness and design of the...
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Article 5 mins
Soil as the book of nature
Nature & Environment

Soil as the book of nature

...care for soils? Knowledge of the soil's physical, chemical and biological make-up is important for various disciplines. For example, nutrient levels are important for crop production, soil shear strength is crucial for engineering construction, and its structure could also be a deciding factor for football pitches! It also has more exotic uses, such as a beauty accessory...
View article Soil as the book of nature
Article 5 mins
Belfast - healthy city
Society, Politics & Law

Belfast - healthy city

...careful consideration of all the different players involved and a strong guiding vision. Barriers to partnership work Mary Black on how the Belfast Healthy Cities project has never had sufficient funding of its own so it has always needed to find ways to lever funding out of a variety of partners. Women's Health information group Kathleen Feenan talks about The Women's...
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Audio 40 mins
Migration
Science, Maths & Technology

Migration

...adult males tolerate non-threatening dull yearlings and also leave brightly coloured yearlings alone. Because of their dominance, both these groups are able to establish territories and attract females but yearling males with intermediate plumage are attacked by adults and therefore fail to obtain territories and mate (Figure 15b). [Described image] Figure 15 (a) Male...
View course Migration
Level 2: Intermediate 8 hrs
The secret history of teenage bedrooms
Education & Development

The secret history of teenage bedrooms

...adult mind you, but spent a good 10 years just in his room watching TV, eating junk food and snorting cocaine. So his own experiences in that song kind of captured the contradictory nature… Laurie Taylor: The two functions – the positive and the negative versions of staying in one’s room. I think you first became interested in the subject of teen bedrooms as a...
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Article 10 mins
Death on the tracks: A 19th century train crash
History & The Arts

Death on the tracks: A 19th century train crash

...care of the signals. If he had to go away for any purpose, the signal took care of itself [Great surprise]. The Coroner: If Eastwood was shunting about with his engine, how came Moore to turn off the danger signal? Witness: Because he left the signal as he found it. The Coroner: But why, if another train was about? Witness: Because he supposed that Eastwood would attend...
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Article 10 mins
The Colour of Success: Can uniform colour impact on team success?
Health, Sports & Psychology

The Colour of Success: Can uniform colour impact on team success?

...adult colour emotion association. The Journal of genetic psychology: Research and theory on human development. Vol 157, No. 3, p. 275-280 Hill, R.A., & Barton, R.A. (2005) Psychology: Red enhances human performance in contests, Nature, 435, 293 Kaya, N. & Epps, H.H., (2004). Relationship between colour and emotion: A study of college students. Colour Student Journal. P....
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Article 10 mins
Swapping between languages: Bilingual people expressing emotions
Languages

Swapping between languages: Bilingual people expressing emotions

...adult female Arabic speakers in their 20s and 30s. Five of them came to the UK from Libya as international students about seven years ago and are currently living in the city of Manchester. In addition to these five ‘late’ bilinguals, who learnt English later in life, the sixth participant is an ‘early’ bilingual and grew up speaking Arabic and English in the UK....
View article Swapping between languages: Bilingual people expressing emotions
Article 5 mins