burned

Wearable technology — smartwatches, smart rings, fitness trackers and the like — monitors body-centric data such as your heart rate, steps taken and calories burned, and may record where you go along the way.

"In a fusion device, typically, the tritium isn't fully burned, and it is hard to come by. So, we wanted to improve the tritium-burn efficiency."

That moment when Jake sings an off-key version of “...Baby One More Time” is “burned into my frontal cortex,” he says.

Hundreds of trees - which can take years to reach fruit-bearing maturity - have been deliberately burned or cut down, says the UN.

This is despite warnings from the UN that, if all the coal, oil and gas from existing and under-construction projects were burned, the world would likely warm far beyond the globally agreed target of 1.5C.