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Golden Globe Ocean Race: The next 50 years?
Nature & Environment

Golden Globe Ocean Race: The next 50 years?

...carbon dioxide inputs is already leading to warmer waters causing some species to migrate, oceans to become more acidic, glaciers and ice sheets to melt. Waste from our industry and general lifestyle now pollutes the oceans with chemicals, plastics, radioactivity and more. So what changes can we expect to see in our oceans in the next 50 years? How fast is sea level...
Manual metal arc welding (MMA)
Science, Maths & Technology

Manual metal arc welding (MMA)

...carbonate (CaCO3) – decomposes to form CaO, and hence a basic slag. Calcium fluoride (CaF2)– increases slag fluidity. Sodium oxide (Na2O) – acts as a coating binder and promotes slag fluidity. Ferro-silicon – acts as deoxidant. Iron powder – increases the rate of deposition. Sizes of welding machines are designated according to their output rating, which may...
Exploring comets: A short introduction
Science, Maths & Technology

Exploring comets: A short introduction

...carbon-based material and rock dust. A comet can develop a spectacular million kilometre-long tail of gas and dust when its elongated orbit brings it close to the sun. The warmth of the sun vaporises water, carbon monoxide and other volatile substances that are otherwise held as ice. Jets of gas escape from the solid part of the comet (its nucleus) to feed the growing...
Warm forging
Science, Maths & Technology

Warm forging

...carbon case hardening steels to medium carbon (0.4–0.5% C) steels for induction hardening applications). Cr-Ni-V steels are used to produce socket heads for socket sets. Only a slight improvement in material properties compared with cold forging. Design: Dimension and tolerance control is not as good as for cold forging. Tolerances: diameter 0.3–0.6 mm length...
Article 5 mins
Climate change – How awareness is prevented through media sanitation
Nature & Environment

Climate change – How awareness is prevented through media sanitation

...carbon dioxide. The loss of this carbon sink adds to the increasing carbon emissions that lead to climate change. Palm oil is also an issue of social justice affecting the livelihoods of local indigenous people, and their cultures that are destroyed through deforestation. When they protest against the continued practice of unsustainable farming, they are thrown in jail...
Ecosystems: living communities
Science, Maths & Technology

Ecosystems: living communities

...the role of the sun, carbon, and energy interactions between organisms in ecosystems Humans enter the equation How human activity affects the delicate energy balance in an ecosystem with often adverse consequences Managing or meddling? How ecosystems need careful understanding if we are to sustain them for the future whilst using them to our economic advantage...
How Volkswagen got caught cheating emissions tests by a clean air NGO
Science, Maths & Technology

How Volkswagen got caught cheating emissions tests by a clean air NGO

...carbon alternatives such as electric and hybrid-electric vehicles increasingly available, as well as, more recently, the first commercial fuel-cell cars, the need for diesel as a carbon reduction technology is becoming less central. Unanswered questions For VW itself, apart from the massive loss of share value in recent days, its corporate social and environmental...
Professor Andrew Watson - Stories of Change
Nature & Environment

Professor Andrew Watson - Stories of Change

...carbon dioxide and other greenhouse gases, chlorofluorocarbons and other ocean tracers. Andy was made a Fellow of the Royal Society in 2003. He is a recipient of the European Geophysical Union’s Nansen Medal for contributions to marine science (2003), and the Plymouth Marine Sciences medal (2009). Since 2009 he has been funded as a Royal Society Research Professor. He...