A team of scientists has built a miniature double particle accelerator that can recycle some of the laser energy fed into the system to boost the energy of the accelerated electrons a second time. The device uses terahertz radiation, and a single accelerating tube is just 1.5 centimeters long andContinue Reading

Intensive care audit shows sharp rise in admissions to critical care as London hospitals struggle to cope Coronavirus – latest updates See all our coronavirus coverage The numbers of coronavirus patients needing life-or-death care have been doubling every three days, a report by senior doctors has revealed. London is worstContinue Reading