Safe Patient Handling Toolkit - 2011 Edition11 â¢ Put the bed at the correct height (waist level when pro-viding care; hip level when moving a patient .) â¢ Try to keep the work directly in front of you to avoid rotating your spine . â¢ Keep the patient as close to you as possible to minimize reaching or overstretching .
Chemical elements listed by the discovery year. For chemistry students and teachers: The tabular chart on the right is arranged by the discovery year. The oldest chemical element is Phosphorus and the newest element is Hassium. Please note that the elements do not show their natural relation towards each other as in the Periodic system.
Tin is one of the oldest metals known by man. There are domestic utensils and arms made of brass (copper with about 15% of tin), dating from 3500 B.C.. The Phoenicians had a very important role in the spread of brass utensils due to its commercial trades with Britain, Spain and the Middle East.