3,396 search results
Electroless plating
Science, Maths & Technology

Electroless plating

...source of nickel ions (5–7 g l-1). 20 g l-1 sodium hypophosphite (NaH2PO2. H2O) – reducing agent, source of energy for process. (Sulphuric acid and ammonium hydroxide added to control pH to 4.5–5.0). Manufacture: Production line consists of the following stages: alkaline soak or electroclean cold or warm water rinse acid pickle rinse electroless plate Additional...
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Article 10 mins
Can eating seaweed and algae keep the world fed?
Nature & Environment

Can eating seaweed and algae keep the world fed?

...source of food. Seaweed, for example, is a type of algae that has been eaten for centuries, but only 35 countries commercially harvest it today. Spirulina cyanobacteria is already eaten as a food supplement and several companies are trying to turn other forms of algae into a human food source. Farming these organisms in the right way could even help counter some of the...
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Article 5 mins
Energy in buildings
Nature & Environment

Energy in buildings

...Open University courses T213 Energy and sustainability and T313 Renewable energy. It should take about 10 hours study time. You will need a calculator handy (perhaps within your computer) to answer some of the course questions...Energy in buildings: Learning outcomes - After studying this course, you should be able to: understand the main ways in which a house loses heat...
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Level 3: Advanced 10 hrs
Introducing philosophy
History & The Arts

Introducing philosophy

...Open University in teaching philosophy. If you are considering studying philosophy, we recommend you start here. Although the course is mainly for people who are new to philosophy, you may find it helpful even if you already have some experience of the subject. The following material was written by Maria Kasmirli as a short introduction to philosophy for students planning...
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Level 1: Introductory 8 hrs
Climate Change Collection
Nature & Environment

Climate Change Collection

...Open University material can be re-used under creative commons copyright. See individual courses or articles for further details. Registering for a free OpenLearn account will allow learners to enrol on a course and track their progress. Enrolment allows learners to return to the last page viewed in each session or lesson, and rewards learners who complete the course with...
View video Climate Change Collection
Video 5 mins
What did Plato believe about the human soul? The one minute guide
History & The Arts

What did Plato believe about the human soul? The one minute guide

...Open University's Classical Studies and qualifications [Plato compared the soul to a person driving a chariot pulled by two flying horses] [One horse is beautiful and noble; it wants to soar into heaven. This horse is our finer spirit.] [The other horse is ugly and bad. This horse represents our base nature, driven by passions and irrationality.] [The soul is our rational...
View article What did Plato believe about the human soul? The one minute guide
Article 1 min
The origins of the First World War
History & The Arts

The origins of the First World War

...Read about Franz Ferdinand's assassination, discover the diplomatic crisis that engulfed Europe in July, explore Germany's strategic war plans, and lots more. We've suggested an order for you to read, but feel free to dip in and out wherever you like. Has this whetted your appetite about studying history? Find out more about The Open University's BA (Hons) in History....
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Article 5 mins
Free Activity Cards
Education & Development

Free Activity Cards

...Storytelling card (146 KB) Who am I? Understanding Children Learn with the Open University [PDF File] Download Who Am I? card (105KB) [PDF File] Download Understanding Children card (107KB) [PDF File] Download Learn With The OU (30KB) If you don't have Acrobat Reader you can download it by following this link: [get Acrobat Reader] download the free plug-in Acrobat Reader...
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Activity 10 mins