In exchange, each individual presenting a luxury item would receive a piece of engraved silver plate (typically in the form of cups, bowls and spoons), which because it came from the queen herself, had a "value" far beyond its intrinsic worth.

BBC: A Point of View: Dazzling in an age of austerity

To avoid dying in a famine, the brain is wired to pick up on signs that calorie-rich foods are nearby, which helps explain why that piece of cake on the plate in front of you is so irresistible, or why seeing a sign for a doughnut shop draws you in even when you know you need to watch your diet.

CNN: Train your brain to crave healthy foods

The image of Photo 51 is tiny - just a few centimetres across - and holding the glass plate in my hands felt like handling a piece of history.

BBC: The most important photo ever taken?

Dr Krausz did it by recording the arrival times of different electrons using a piece of equipment called a multi-channel plate detector.

ECONOMIST: Small-scale physics

He built a Sonic Pavilion in Brazil that records the sound of plate tectonics one year, and then created a video and performance piece on a barge in Greece the next.

WSJ: Where I Work: Artist Doug Aitken

Another piece to the puzzle: Both of these earthquakes occurred along opposite ends of the same tectonic plate, the Australian plate.

CNN: Two quakes in the same region in a day - coincidence?