186 search results

Science doesn't know how free divers do it
Health, Sports & Psychology

Science doesn't know how free divers do it

...chemistry of your blood stream as the increased pressure allows gases to dissolve more easily and exert their effects more readily. So the nitrogen, the larger amount of nitrogen that dissolves in your blood stream, behaves as a narcotic and actually makes you feel quite drunk and at only 30 or 40 metres. If you dive at those limits, the additional nitrogen can make you...
Iron from the sky: Meteors, meteorites and ancient culture
Science, Maths & Technology

Iron from the sky: Meteors, meteorites and ancient culture

...chemistry of any preserved metal fragments. At The University of Manchester in the x-ray imaging facility, we produced an x-ray CT model of the bead which illustrated the variations in its structure and composition in three dimensions. The results indicated the bead micro-structures observed and their composition were consistent with that of an iron meteorite that had...
Enduring Love
Health, Sports & Psychology

Enduring Love

...chemistry. Owen I’d been looking for that for years, yeah. Ann And then I think it’s very important especially as you get older to have a sense of humour. That is very important in love; you’ve got to have a sense of humour. You’ve got to trust each other and you’ve got to communicate, got to be huge communication, and apart from communicating you’ve got to be...
Supporting sustainable and responsible space exploration
Science, Maths & Technology

Supporting sustainable and responsible space exploration

...chemistry of life. In the past, space exploration missions were mainly managed by national and multi-national space agencies, but commercial companies are playing an increasingly important role. The debate over the ethical, philosophical, governance, legal, scientific and commercial aspects of space exploration must evolve to consider the interests of all stakeholders. Do...
Between humanity and space
Science, Maths & Technology

Between humanity and space

...chemistry class … But it turned out that I'm really good at connecting dots and understanding abstractions, which led me to studying the political and cultural aspects of space. Later, I started researching decolonial (or anti-colonial) theory, which led me to see parallels between the way we talk about exploring space and the way in which Western powers colonised the...
Pain and Aspirin
Science, Maths & Technology

Pain and Aspirin

...chemistry (the chemistry of compounds that contain carbon). With many millions of known organic compounds, and more being added by the day, it would be hopeless if their properties could not be systematised in some way. It turns out that a given functional group usually has the same chemical properties whatever carbon chain it is bonded to, so once the general properties...
Level 2: Intermediate 4 hrs
DIY: Make Your Own Soap
Science, Maths & Technology

DIY: Make Your Own Soap

...chemistry going on here. As saponification proceeds, the oils, fat and caustic soda react together, heat is generated, water evaporates and the soap begins to harden. If you want fragrant soap, stir in the essential oil or lemon juice at this stage. Pour your traced mixture into the plastic moulds and put them in an airing cupboard. Tidy up your work area straightaway and...
The history of soapmaking
History & The Arts

The history of soapmaking

...chemistry involved, resulting in greater manufacturing efficiency, a wider variety of more fragrant and colourful solid (and liquid) soaps, and milder soaps for use on the finest lace and linens. The industry thrived. The Industrial Revolution brought steam-power and mechanical energy, leading to economies of scale and even greater production efficiency under more readily...