Space suits hanging in a row from hooks. These space suits, known as Extravehicular Mobility Units (EMUs), have been designed for use during shuttle missions and allow the astronauts to spacewalk independently of the space craft. The suit consists of many components including a one- piece undergarment carrying cooling pipes, a semi- rigid upper torso section and a flexible lower torso/leg section. A helmet, gloves and Primary Life Support Subsystem (PLSS) can be fitted to the suit. These suits can be re-used, which was not the case for previous space suits.
© SCIENCE PHOTO LIBRARY
SS 'Berengaria' leaving Southampton for Jarrow, 1938
Photograph of the Cunard Liner 'Berengaria' heading out of Southampton, with tugs, to head to Jarrow to be broken up, December 1938. 'Berengaria' was built at the AG Vulcan shipyard, Hamburg, in 1913 and launched as 'Imperator' for the Hamburg-Amerika Line. She was laid up, unused, during the First World War then given to Britain as war reparations at the ceasation of violence. Cunard bought her shortly thereafter and used her on the Southampton, Cherbourg, New York route from 1921 until 1938. Unfortunately she lost her Passenger Certificate in 1938 due to the senility of her electrical wiring and was taken to Jarrow to be broken up in the same year.
© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10216904
Used and unused toothpicks, SEM
Used and unused toothpicks. Coloured scanning electron micrograph (SEM) of an unused (left) and a used (right) toothpicks. The used toothpick has a blunt end and is covered in dental plaque. Plaque consists of a film of bacteria embedded in a glycoprotein matrix. The matrix is formed from bacterial secretions and saliva. Plaque is the main cause of tooth decay. The bacteria feed on sugars in food, producing acid as a waste product. This acid corrodes the teeth's enamel coating, resulting in dental caries. A build-up of dental plaque can also lead to inflamed and infected gums. Severe gum disease can lead to teeth falling out. Magnification: x20 when printed at 10 centimetres wide.
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY