718 search results
Studying mammals: A winning design
Nature & Environment

Studying mammals: A winning design

...energy expenditure will 'make the minimum demand on the meagre pasture around her and she has a fertile dormant egg within her womb ready to start its development just as soon as conditions improve'...Studying mammals: A winning design: 4 Milk production (lactation) - In this section, you are presented with a fairly complex diagram, Figure 1. The first thing to do when...
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Level 1: Introductory 10 hrs
Studying mammals: Plant predators
Nature & Environment

Studying mammals: Plant predators

...energy source for the process that combines water (taken up through their roots) and carbon dioxide (taken in from the air through pores, called stomata, in their leaves) to make sugars. Plants can use these sugars, together with minerals which are dissolved in the water in the soil, as the raw materials for all the other types of molecule that the plant needs for its...
View course Studying mammals: Plant predators
Level 1: Introductory 10 hrs
Microgravity: living on the International Space Station Badge icon
Science, Maths & Technology

Microgravity: living on the International Space Station

...Energy levels are demonstrated in the context of a sodium lamp in Video 3. Watch it now and then do Activity 4. HELEN: So in the last experiment, we absolutely established that light can behave as a wave, but now we're going to show you something that shows that also lights can behave as a particle. So here I have an experiment which actually OU students get a chance to...
View course Microgravity: living on the International Space Station
Level 1: Introductory 24 hrs
Organisations, environmental management and innovation
Nature & Environment

Organisations, environmental management and innovation

...energy, to name but a few. Innovations may not be as environmentally positive as the word innovation suggests. All this is both heartening and disheartening in that it presents a problem. What is innovation? We will consider an exact definition in a moment, but the next activity prompts you to reflect on what you currently understand by innovation in relation to...
View course Organisations, environmental management and innovation
Level 2: Intermediate 12 hrs
An introduction to computers and computer systems
Digital & Computing

An introduction to computers and computer systems

...energy, crucial when the computer is battery powered such as a laptop of mobile phone. Saving energy is also important for the environment. At the end of this course in considering the future of computing you will look at green computing.) Any electrical signal where the number of possible values that can be used is limited is known as a digital signal. If the number of...
View course An introduction to computers and computer systems
Level 1: Introductory 16 hrs
The devil is in the (complex) detail
Health, Sports & Psychology

The devil is in the (complex) detail

...energy, farming, science, and many more. The sheer complexity and speed of Brexit is likely to have further psychological effects that make it different from normal political issues. Psychologists have shown that when faced with overwhelming information load, such as high complexity and abstract information, along with situational constraints on being able to evaluate...
View article The devil is in the (complex) detail
Article 5 mins
Injection moulding
Science, Maths & Technology

Injection moulding

...energy efficient. Due to the high capital cost of machines and dies, the process is only suitable for long production runs. Materials: Thermopolymers are the most commonly used materials although the process is being increasingly used on thermosets (such as polyesters and melamines), rubbers, reinforced polymers (glass and carbon fibre) and to produce both structural and...
View article Injection moulding
Article 5 mins
Climate change in the global South: Bangladesh and Senegal
Nature & Environment

Climate change in the global South: Bangladesh and Senegal

...energy industry and motor transport. The countries of the tropics will be among the first to be affected. Already, there is evidence that tropical countries are beginning to suffer declining agricultural productivity through the drying of soils. Bangladesh has long suffered from extreme weather, but there is evidence that the situation is worsening. The Intergovernmental...
View article Climate change in the global South: Bangladesh and Senegal
Article 10 mins