Have you ever wondered what happens beneath the waves while you sleep? Coral reefs are not just static underwater ...

There are 24 hours in 1 day. Analogue clocks only show 12 hour intervals, so the hour hand must go around twice within a day. On a 12-hour clock, times can look the same but are different ...

The 24 Hours exhibition at Milan design week features 24 weird and wonderful clocks, all by different designers. We look at seven of ... reads the text. 24-Hour Clock (Manual) by Sam Newman ...