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Flame cutting
Science, Maths & Technology

Flame cutting

...energy of the oxygen stream. The pre-heating flame is usually oxy-acetylene, but other cheaper gases such as propane, or natural gas can be used. Oxygen purity should be >99.5% since a 1% decrease in purity increases consumption and decreases cutting speed by 25%. Cutting will not occur below 95% purity. Cutting speeds are very dependent on oxygen pressure and nozzle...
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Article 5 mins
Do whales use their heads to attack boats?
Nature & Environment

Do whales use their heads to attack boats?

...energy to protect the brain and skull when males use their heads as battering rams to compete over females. One reason this hypothesis is compelling is the great size difference between male and female whales. Sperm whales are the most sexually dimorphic of all cetaceans, with adult males reaching sizes three times larger than females. Among mammals, such size differences...
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Article 5 mins
A ‘disorder’ or just me? Life with bipolar
Health, Sports & Psychology

A ‘disorder’ or just me? Life with bipolar

...energy and wellbeing, confidence and euphoria develop into a reduced need for sleep, reduced inhibitions, overactivity, restlessness and agitation. This can lead to risk taking or extreme physical health problems due to lack of sleep, lack of food and dehydration. Severe manic episodes may also involve psychosis. This is when the person may hear, see, feel, smell, touch...
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Article 5 mins
How can nature help us meet the climate challenge in towns and cities?
Nature & Environment

How can nature help us meet the climate challenge in towns and cities?

...energy out of the sea during storm surges and stabilise the coast against erosion under rising sea levels. All of these show how nature-based solutions can help urban environments adapt to climate change. Other cities are looking at how their natural spaces can mitigate the extent of climate change. In Durban in South Africa, the city government has worked with scientists...
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Article 10 mins
From Astrobiology to Parliament
Science, Maths & Technology

From Astrobiology to Parliament

...energy and a fresher mind. I learned about meeting tough deadlines, untangling a complex topic and writing to a prescribed style and format. I also worked for a day at the Nuffield Foundation, including giving what they call a ‘lunch and learn’ talk about the work I’d done at POST, which started some new connections and links with new networks for me. I’ve never...
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Article 5 mins
How to find invisible black holes
Science, Maths & Technology

How to find invisible black holes

...energy X-ray and gamma ray radiation. We can detect this radiation and that’s how we know the black hole is there. [The light from a star is magnified when the black hole passes in front of it. This creates a distinctive peak in the lightcur] Figure 1: The light from a star is magnified when the black hole passes in front of it. This creates a distinctive peak in the...
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Article 10 mins
Sylvia Plath and the linguistics of depression
Languages

Sylvia Plath and the linguistics of depression

...energy, revealing instead an experience of inner conflict, contradiction and pain. Then, in the summer of 1953, just a month before Plath attempts to take her own life, creative figurative language almost disappears from her writing. It becomes more fragmented, almost like stream-of-consciousness: First think: here is your room — here is your life, your mind: don't...
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Article 10 mins
The quiet contender of Switzerland hosts Euro 2025
Health, Sports & Psychology

The quiet contender of Switzerland hosts Euro 2025

...energy to fuel a deep tournament run. With the country rallying around the team and national pride at stake, Euro 2025 may well be Switzerland’s moment to exceed expectations if momentum builds and inspire the next generation of players and fans. England and Wales Meanwhile, England are ranked third and are in a tough group with France, the Netherlands and Wales....
View article The quiet contender of Switzerland hosts Euro 2025
Article 5 mins