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Friction welding
Science, Maths & Technology

Friction welding

...burn-off" during this stage, which is held for a fixed time depending upon the material and component size. Second friction stage [Images to demonstrate 'Friction welding' - see article] The pressure is increased, and friction increases the temperature of the splayed surfaces, to give the required degree of plasticity and heat input whilst the weld zone stays below the...
The challenge of invasive alien species
Nature & Environment

The challenge of invasive alien species

...out more about them in this article...[Invasive species headlines] Recent news headlines showcasing the interest on invasive alien species What are invasive alien species? Whether they are animals, plants or microorganisms, species are very mobile within the biosphere. They (or their propagules) move: independently using their own energy, are transported via other...
The Olympic torch: the truth
History & The Arts

The Olympic torch: the truth

...burning in honour of Hestia (the goddess of the hearth) and was used to light all the other sacrificial fires throughout the complex of temples. The Ancient Olympics also had the Hekatomb, a religious ceremony that involved sacrificing 100 oxen and burning their legs on a large pyre in honour of Zeus. However, the torches used to light these fires did not have any...
Holi: The festival of colours, the festival of diversity
History & The Arts

Holi: The festival of colours, the festival of diversity

...burned in the fields. Under the hot sun, soil dries quickly and turns into dust which is mixed with ash from the charred fields. The dust mixed with ash is a perfect substance to use as powder paint. Before the synthetic colours came along, the mixture of dust and ash would have been mixed with turmeric, saffron or indigo to make the powder paints. So, the colours of Holi...
Study online and find a subject that inspires you
Education & Development

Study online and find a subject that inspires you

...Burns Mental health and wellbeing Safeguarding in sport Introduction to English and Maths Fees and funding All undergraduate and postgraduate courses with The Open University can be found here and there's information on fees, funding and bursaries here. Nearly all of our undergraduate courses have no pre-entry requirements. The PFA NI can support you through degree level...
Biofuels
Science, Maths & Technology

Biofuels

...burned to release the energy they contain. Therefore, burning a biofuel releases carbon dioxide that was trapped only a few years beforehand and so is said to be 'carbon neutral', whereas burning a fossil fuel releases both the energy and carbon dioxide that was trapped millions of year before and can lead to global warming. Wood and certain types of grass can be used as...
Level 1: Introductory 5 hrs
Mastering our fear of death with the Jack-o’-lantern
History & The Arts

Mastering our fear of death with the Jack-o’-lantern

...burning coal inside a hollowed-out turnip for light (Eastwood, 2021). This symbol resembles a skull or severed head. Once seen, it’s hard to un-see it. As such, the image can be associated with Sigmund Freud’s idea of the uncanny – that which is at once familiar and strange: it looks human, but it’s hollow; the lights are on, but there’s nobody home! The uncanny...
Women in the Railway, the War and the Unions
Society, Politics & Law

Women in the Railway, the War and the Unions

...out more about The Open University's History and Social Sciences courses. With the introduction of conscription in 1916 leading to over 100,000 men in Scotland leaving to fight in the First World War, women had to step in to fill the jobs that men had left. Many of these jobs were on the railway and it had never been imagined that women would be able to do this type of...