What is mobile elbow?
The mobile elbow results from using the mobile for long hours. Called the ‘cubital tunnel syndrome’, it is also called cell phone elbow’. The problem occurs when the ulnar nerve, which runs across the elbow, down to the ring and little fingers, gets over-stretched and blood supply is restricted, sparked by holding a phone to the ear for long periods. • WHY DOES STEEL GLOW WHEN IT’S HOT? Hot steel glows red when hot because its atoms vibrate with a lot of energy. The amount of energy varies in atoms re- sulting in a range of colours. • WHAT DOES JANUARY MEAN? The original Roman calendar had 10 named months from March to December and two unnamed months during winter. These two months were named January and February by Numa Pompilius, the second king of Rome circa 700 BC. January is named after Janus, the Roman ‘god of gates, doors and the beginnings’. • WHAT’S THE AAFBAU PRINCIPLE? The physical and chemical properties of elements are determined by the atomic structure. This, in turn, is
