Generalized optical meta-spanners empower arbitrary light paths for multitasking optical manipulation

Have you ever wished to drive microscopic matter along an arbitrarily tailored trajectory instead of just a circle? That's exactly what we set out to achieve.
The Echo

BBC confirms Radio 4 Long Wave to shut down after 90 years

The BBC has confirmed that its Radio 4 Long Wave (LW) service will be closing later this year. It has used LW radio for more than 100 years, with the BBC Radio 4 Long Wave service transmitted from the ...