3,412 search results
When is the best time to buy plane tickets?
Money & Business

When is the best time to buy plane tickets?

...source of many myths and urban legends. These include tips about the best day of the week to buy a ticket, last-minute discounts offered by the airlines, and the conspiracy theories suggesting that the carriers use cookies to increase prices for their passengers. None of these three statements is entirely true. Studies have suggested that prices can be higher or lower on...
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Article 5 mins
Batman v Superman: Are superheroes always good?
History & The Arts

Batman v Superman: Are superheroes always good?

...source of tension, and this explains the appeal of the heroes of myth. The heroes were the aristocrats of their own day, but were safely enclosed in the mythological world. This meant that they could be used to think about difficult issues without it becoming too personal or painful for any real people. This also explains why Athenian tragedy is so fond of depicting the...
View article Batman v Superman: Are superheroes always good?
Article 10 mins
Is Brazil's future Utopia now a thing of the past?
Society, Politics & Law

Is Brazil's future Utopia now a thing of the past?

...source of the strength of Rousseff’s Workers Party (PT), fueled by the economic downturn, erupted in street clashes after a much-postponed rise in bus fares and a strike among bus drivers. Brazil’s crushing defeat by Germany (1-7) in the Brazil-hosted World Cup stoked further public dissatisfaction. Transcript Beyond bad luck As to the more systemic problems, one...
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Video 5 mins
Why did millions march against Trump?
Society, Politics & Law

Why did millions march against Trump?

...sources reported, attendance at all sites far exceeded projections, sometimes by 10 times. Consequently, the physical presence of the expanded beyond organizers’ expectations, which in many places required a schedule shifted. At all marches there were points where participants in central areas could not move and most people could not hear scheduled speakers even if they...
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Article 5 mins
Plasma nitriding/carburising
Science, Maths & Technology

Plasma nitriding/carburising

...source is hydrocarbon gas (methane or propane), often diluted with nitrogen, hydrogen and argon, which is bled into the vacuum chamber at a few litres per minute. Very little exhaust gas results, hence no risk of pollution. Surface of component is cleaned by “sputtering” and hydrogen reduction of any oxides. “Sooting” – which occurs in low pressure gas...
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Article 10 mins
What is The Social Contract?
History & The Arts

What is The Social Contract?

...source, this explanation amounts to an account of natural obligations. There is another way of placing oneself under an obligation. Suppose I ask to borrow some money from a colleague. She agrees, if I pay her back, and so I say ‘I’ll pay you back that tenner next week.’ Then – clever philosophical tricks aside – I am under an obligation to pay back the money...
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Article 5 mins
How is a University obsession with teenagers hurting part-time students?
Education & Development

How is a University obsession with teenagers hurting part-time students?

...sources of financial support. All this varied by disciplines, with some courses appearing to offer very different part-time student experiences. Not all students are the same Part-time higher education has a crucial role to play in social mobility. Opportunities to study part-time are at the forefront of widening access to the most disadvantaged adults, those vulnerable...
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Article 5 mins
How Do Batteries Work?
Science, Maths & Technology

How Do Batteries Work?

...source of electricity in the early 19th century. MAKE YOUR OWN PILE You can create your own voltaic pile using 2p and 10p coins and some paper towel the same size as the coins and soaked in lemon juice (or water that has had as much table salt dissolved in it as possible - what's called a 'saturated' solution). The paper discs need to be the same size as the 10p coins so...
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Article 10 mins