May Gallery
Available as Framed Photos, Photos, Wall Art and Gift Items
Choose from 17 pictures in our May collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.
Abstract
Aerial
Africa
Animals
Architecture
Arts
Asia
Europe
Historic
Humour
Maps and Charts
North America
Oceania
People
Popular Themes
Posters
Religion
Science
Services
South America
Special Days
Sport
Transportation
All Images
> 1990
>> May
>>> 1 May 1990
>>> 31 May 1990
Collections

Princess Diana, William and Harry meeting firefighters
Princess Diana and her sons, Princes William and Harry, meeting firefighters at the The Blitz Remembered Service at St Pauls Cathedral, London, on 25 October 1990. A red fire engine can be seen behind them
© London Fire Brigade / Mary Evans Picture Library
1990, 1990s, 90s, Appliance, Appliances, Blitz, Brigade, British, Cathedral, Diana, Engine, Engines, Family, Fire, Firefighter, Firefighters, Firefighting, Fireman, Firemen, Harry, Lfb, London, Meet, Meeting, Nineties, October, Old, Pauls, Prince, Princes, Princess, Red, Remembered, Royal, Royalty, Service, Services, Son, Sons, St, Vehicle, Vehicles, William

False-colour SEM of the crown wheel of a watch
False-colour scanning electron micrograph of the crown wheel of a Swiss-made, 17-jewel INCABLOC watch. The crown wheel is part of the watch's winding mechanism. When the watch is wound, the winding pinion (small gear wheel seen edge-on at bottom) rotates, meshing with the crown wheel. The rotation of the crown wheel causes the ratchet wheel at top left to turn, & this wheel is attached to the barrel which holds the mainspring of the watch. The mechanism is clean; the tiny dust particles would not affect its function. The absence of screwdriver marks in the crown wheel's slot shows that the assembly has never been serviced. Magnification: x4 at 6x4.5cm size
© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY