965 search results
Exploring sport online: Athletes and efficient hearts
Health, Sports & Psychology

Exploring sport online: Athletes and efficient hearts

...central engine and a body with a central heart The car in the figure above has an engine at its centre and the body has a heart. In both cases there are many moving parts. For the car, the movement is performed by hydraulics, gears and levers; while for the human, the movement is created through muscles connected to bones. In both cases the ‘machine’, both mechanical...
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Level 1: Introductory 5 hrs
Why are nonhuman animals victims of harm?
Society, Politics & Law

Why are nonhuman animals victims of harm?

...central to understanding the revolutionary impact of the animal turn: it focuses attention on a hitherto overlooked but fundamental facet of society. Another important aspect of the historical dearth of social science attention to nonhuman animals is that the social sciences have tended to represent humans as much more important than other animals (Peggs, 2012), and this...
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Level 2: Intermediate 2 hrs
‘Problem’ populations, ‘problem’ places
Society, Politics & Law

‘Problem’ populations, ‘problem’ places

...central components of so many societies across the world, we may conclude that the idea of populations of problem places as somehow marginal to society is a myth. This ‘myth of marginality’ (Perlman, 1976) both presents people living in poverty as hopeless, deficient and disorganised masses surplus to society, and obscures the complex interrelations between different...
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Level 2: Intermediate 5 hrs
Fire ecology
Science, Maths & Technology

Fire ecology

...central aspect of fire ecology, which is the concept of a fire regime...Fire ecology: 1.3 Fire regimes - Fire has predictable features regarding how it spreads across landscapes and the frequency and season of occurrence. Such predictability has led to the concept of a fire regime: the temporal and spatial characteristics of the fire and the impact it has on the landscape...
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Level 2: Intermediate 4 hrs
When Heath met Nixon
History & The Arts

When Heath met Nixon

...Central America BACKGROUND: Ten years on from The Bay of Pigs, Cuba - the Communist outpost on America's front lawn - was still an area of concern for the US administration. In November 1971, Cuban leader Fidel Castro had taken his first trip to Latin America since 1959 when he visited Chile. Meanwhile, as Britain unwound from Empire, since 1969 The Bahamas had been given...
View article When Heath met Nixon
Article 15 mins
Brexit: What’s this fine mess you’ve gotten us into? (Apologies to Laurel and Hardy)
Society, Politics & Law

Brexit: What’s this fine mess you’ve gotten us into? (Apologies to Laurel and Hardy)

...central banks designed to keep the whole show on the road), and in a whole load of other circumstances that are too many to mention. As a scientific theory it also fails miserably since unlike Newton’s Laws its predictions cannot be tested empirically [as would be the case for physical system hypotheses] because the degrees of freedom are massive. Economic systems...
View article Brexit: What’s this fine mess you’ve gotten us into? (Apologies to Laurel and Hardy)
Article 10 mins
How the atmosphere sustains life on Earth
Science, Maths & Technology

How the atmosphere sustains life on Earth

...central region of Africa, around the equator, is bright green with lush vegetation. The reason is clearly visible as it is also almost covered by white, convective clouds in the image. These grow during the day, as the surface warms in the sunlight, and typically produce rain in the afternoons, supplying water to the plants and animals which live below. A similar process...
View article How the atmosphere sustains life on Earth
Article 20 mins
How can you turn desert into farmland?
Nature & Environment

How can you turn desert into farmland?

...central lesson from her work that Mweetwa stresses is that organic matter, which enhances fertility and soil organisms, is key for resilient healthy soils in sub-Saharan Africa. “If we could ‘up’ soil organic matter levels using different holistic approaches, that could really help soils,” she says. Using cover crops, reducing tillage, and direct application of...
View article How can you turn desert into farmland?
Article 20 mins