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Asteroids
Science, Maths & Technology

Asteroids

...investigate its composition. [Asteroids near Earth. Meteorites orbiting planet. Deep space image, science fiction fantasy in high resolution ideal for wallpaper and print. Elements of this image furnished by NASA ] Hitching a ride on an asteroid to travel back to the birth of the Solar System Right now there are two active asteroid sample-return missions in space... ​...
Article 15 mins
Magneform (electromagnetic assembly and forming)
Science, Maths & Technology

Magneform (electromagnetic assembly and forming)

...composites. Repetitive machines can be used at up to 40 parts per minute. Magneform machines make no physical contact, so no lubrication is required. There is no tool wear or maintenance. Process is primarily used for swaging or expanding tubular shapes. It may also be used for embossing, punching, forming and shrinking operations. Materials: Magneform works best on...
Thermal spraying (Hardfacing)
Science, Maths & Technology

Thermal spraying (Hardfacing)

...mm) Surface finish Oxy/fuel Metals, composites 5–15 Usually high 0.1–15 Good Electric arc Metals, composites 3–10 Medium to low 0.1–50+ Good Plasma arc Metals, ceramics, composites 0.5–10 Medium to low 0.05–1 Fair to good Detonation gun Mainly oxide and carbide ceramics 0.25–5 Very low 0.05–0.3 Very good See Also: Electroplating and Electroless plating....
Modelling the planets
Science, Maths & Technology

Modelling the planets

...compositions After spending two years studying how early Earth rocks were formed, I started to get interested in fluid-rock interactions in low-temperature conditions (low, in this case means around 150 °C!). That was the beginning of the connection between the geology I was studying and astrobiology. Could the kind of modelling I was doing be applied to other planets,...
The greatest composers you’ve never heard of
History & The Arts

The greatest composers you’ve never heard of

...compositions, Chaminade turned her attention instead to writing piano works. She was a gifted pianist herself and also a remarkably astute business-woman. Her piano works became extremely popular, and she found a massive following for her compositions among amateur pianists. In the US, her music inspired so much passion that hundreds of Chaminade music clubs were founded....
Anghydraddoldebau hiliol mewn iechyd: Effaith COVID-19 yng Nghymru a thu hwnt
Health, Sports & Psychology

Anghydraddoldebau hiliol mewn iechyd: Effaith COVID-19 yng Nghymru a thu hwnt

...Du a lleiafrifoedd ethnig yng Nghymru, y DU a thu hwnt...Bydd Dr Jenny Douglas yn cyflwyno trosolwg o anghydraddoldebau hiliol mewn iechyd o bersbectif hanesyddol a chymdeithasegol, gan ganolbwyntio yn bennaf ar y DU, ond yn gwneud cysylltiadau â’r UD. Bydd y cyflwyniad hwn yn canolbwyntio ar y modd y mae’r pandemig wedi adlewyrchu ac amlygu anghydraddoldebau...
Tim Peake’s spacewalk is no stroll in the park
Science, Maths & Technology

Tim Peake’s spacewalk is no stroll in the park

...sang “Here am I, sitting in a tin can, far above the world”) we will watch with fascination as first Colonel Tim and then Major Tim float out of the ISS airlock to complete their scheduled tasks. It sounds glamorous to be an astronaut – but is it? After mending the SSU together, the two astronauts will go to different parts of the ISS, one to fix a valve and change...
History How-to videos: Paper and ink
History & The Arts

History How-to videos: Paper and ink

...composition, if it’s smooth like this, that’s wove paper. That’s a completely different process that wasn’t invented until 1750. So if your sheet of paper is uniform, it’s wove paper, it’s modern. If it has the pattern of parallel lines, it could be much older. The other thing you can do is look at the ink. The question with ink is whether it’s consistently...