37 articles from SATURDAY 2.9.2023

AI 'nose' predicts smells from molecular structures

In a major breakthrough, scientists have built a tool to predict the odor profile of a molecule, just based on its structure. It can identify molecules that look different but smell the same, as well as molecules that look very similar but smell totally different. The research was published in Science.

Nobel Foundation reverses decision to invite Russian ambassador to awards

Foundation backtracks on earlier announcement that representatives from Russia, Belarus and Iran would be invitedThe Nobel Foundation has reversed its decision to invite ambassadors from Russia and Belarus to this year’s Nobel awards ceremony in Stockholm after the invitation sparked anger.In 2022, the Nobel Foundation, which organises the annual Nobel prize ceremony and banquet in Stockholm,...

There’s no room-temperature superconductor yet, but the quest continues

This summer, a South Korean lab declared a world-changing breakthrough. Their claims didn’t survive scrutiny, but physicists hold out hope for the holy grail of electric efficiencyA “possible real solution to the energy crisis” that “could change everything”. That’s how recent headlines billed the mundane lumps of a dirty-looking material known as LK-99 reported by scientists in South...

India launches space mission to the sun – video

India has launched a spacecraft towards the sun in the latest mission of its ambitious space programme. The launch comes a week after the country's successful unmanned moon landing. Aditya-L1 launched with a live broadcast, showing the vessel making its way to the upper reaches of the Earth's atmosphere. The vessel is carrying scientific instruments to study the sun's outermost layers in a...

New scalable, etching-based technique for precise tuning of microdisk lasers

Micro- and nanodisk lasers have recently emerged as promising optical sources and probes for various applications in the fields of nanophotonics and biomedicine. Their ability to achieve lasing at a deterministic wavelength and ultra-narrowband precision is critical for several applications in on-chip photonic communications, on-chip bioimaging, biochemical sensing, and quantum photonic...