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A hug for the brain: what does it mean to have a happy, healthy brain?
OpenLearn Ireland

A hug for the brain: what does it mean to have a happy, healthy brain?

...energy or fatigue inability to focus feeling anxious feeling hopeless mood swings How to get more dopamine? meditate use a daily to-do list make (and work on) long-term goals eat food rich in L-Tyrosine exercise regularly create something: writing, music, art Checklist: your oxytocin 🤝 How to spot signs of not enough oxytocin? feeling lonely feeling stressed lack of...
Rising China and Africa's development: oil
Society, Politics & Law

Rising China and Africa's development: oil

...energy consumption which Figure 2b reveals experienced an almost five-fold increase between 1971 and 2015. These so-called ‘development indicators’ tell us a story of economic growth and reduced poverty, structural shifts in China’s economy, massive changes in the way people live, and growing pressures on energy and resources. What fuelled this and what are the...
Introducing mammals
Nature & Environment

Introducing mammals

...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...Introducing mammals: 5 Milk production (lactation) - One of the defining features of mammals is milk production. It is a remarkable and unique mammalian process technically...
Level 1: Introductory 5 hrs
Iron from the sky: Meteors, meteorites and ancient culture
Science, Maths & Technology

Iron from the sky: Meteors, meteorites and ancient culture

...a gift of the gods thus increasing the importance of its presence in ritual events. In modern times scientists will travel the globe in order to recover meteorites as their scientific analysis provides essential information about the formation history of the solar system but clearly in some instances meteorites are also immensely valued as symbolic and sacred objects....
How is Italy reinventing the co-op?
Money & Business

How is Italy reinventing the co-op?

...solar panels on buildings in the cemetery and use electric rather than gas-powered lawn mowers. Their workforce includes developmentally disabled people, recovering addicts and paroled prisoners. “We provide these people with skills so that they can play a productive role in the community,” explains CEO Simone Marzocchi, noting that For.b also saves the city money by...
Supporting sustainable and responsible space exploration
Science, Maths & Technology

Supporting sustainable and responsible space exploration

...Solar System. Although conditions on other planets and bodies in space look inhospitable, ingredients that could host life might be present. If life exists in any of the worlds we hope to explore, conscientious mission teams cannot leave its protection to chance. We know life is found on Earth in the most extreme conditions and terrestrial hitch-hikers can survive space...
Exploring Europa
Science, Maths & Technology

Exploring Europa

...Solar System exploration, in which Jupiter’s enigmatic ocean moon Europa will be front and centre. Here we look at what two upcoming missions hope to achieve and why this is important for space scientists and astrobiologists...Europa was first glimpsed up-close by the Pioneer and Voyager probes in the 1970s, but it wasn’t until the Galileo mission in the 1990s and...
Plasma arc cutting
Science, Maths & Technology

Plasma arc cutting

...Energies of approximately 10kWh m-3 and thermal efficiencies of 85–90% can be achieved. There are three commonly used plasma systems. Manufacture An alternative to flame cutting, laser cutting, electrical discharge wire cutting and abrasive jet cutting. Used mainly for profile cutting of metal sheets and slabs up to 200 mm thick, but can also be used for cutting,...