First invented in the 1980s by Chuck Hull, an engineer and physicist, 3D printing technology – also called additive manufacturing – is the process of making an object by depositing material, one layer at a time. Similarly to how an inkjet printer adds individual dots of ink to form an image, a 3D printer adds … Read more
Coronavirus particles from a cough linger in the air BEHIND an infected person in a corridor – posing an infection risk to children, study warns Researchers used computer models to see how space changes air flow Found close walls like in a corridor changes behaviour of particles from a cough In open space they latch … Read more
Elusive ‘ghost particles’ produced deep within the Sun have been detected for the first time, helping to shed light on the reactions that make massive stars shine. Researchers were able to capture evidence of the particles as they passed through a special detector buried beneath a mountain near the town of L’Aquila, Italy. The rare emissions … Read more
Face masks must be worn on public transport and in many indoor spaces, including shops, shopping centres, indoor transport hubs, museums, galleries, cinemas and public libraries. It is currently the law for passengers to wear face coverings in taxis and private hire vehicles, in hospitality venues, like restaurants and bars, other than when you are … Read more
Infected coronavirus particles from a cough can swirl around inside a lift for up to half an hour if the doors are kept closed, according to a new study. Experts from the University of Amsterdam mimicked a series of coughs inside a hospital lift to determine how long they lasted under different conditions. When the … Read more
Infected coronavirus particles from a cough can swirl around inside a lift for up to half an hour if the doors are kept closed, according to a new study. Experts from the University of Amsterdam mimicked a series of coughs inside a hospital lift to determine how long they lasted under different conditions. When the … Read more
Researchers in Australia believe singing, especially in a choir, could spread coronavirus via airborne droplets. The findings come from a slow-motion video with special LED lighting which shows how otherwise invisible particles shoot from the mouth of a singer. During an experiment, a person was asked to sing a popular scale and some sounds, such … Read more
Interstellar visitor Oumuamua may be a ‘dust bunny,’ according to experts who say it formed from particles inside an Oort cloud comet and broke off due to hydrodynamic stress Oumuamua, spotted in 2017, is Earth’s first interstellar visitor The discovery has raised many questions, primarily focused on its origins Experts now say it formed similar to … Read more
The significant reduction in vehicle journeys at the start of the Covid-19 lockdown – which saw traffic levels fall by as much as 80 per cent – did not reduce the level of toxic ‘fine’ particles in Scotland’s air, according to experts at the University of Stirling. A new report published today shows that harmful particulate matter … Read more
Wear a mask when using public toilets! Flushing a urinal sends an invisible spray of coronavirus-laden particles ‘climbing violently’ into the air Researchers modelled how urinals issue sprays of tiny particles when flushed They found that 57 per cent of particles are ejected away from the urinal itself These potentially virus-bearing particles hit one’s thigh … Read more