First geological map of Britain, 1815
First geological map of Britain, detail of the north east coast (figure 8). This map was published in 1815 by British geologist William Smith (1769-1839). It shows rock layers (strata) in England and Wales and part of Scotland (key at lower left). Smith's work as a canal surveyor allowed him to study geology. He discovered that geological strata could be reliably identified at different places on the basis of the fossils they contained. Smith also proposed the principle of superposition, that if a strata overlays another then it was laid down at a later time. He is considered the father of English geology.
© NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY
Manned maneuvring unit space walk, 1984
Manned maneuvring unit space walk, 1984. Astronaut Bruce McCandless floats free above the Earth in his manned manoeuvring unit (MMU) on 7th February 1984, during the 10th space shuttle flight (mission 41B). McCandless, who helped design the MMU, was the first person to fly it, thus becoming the first "human satellite" in orbit around the Earth. The MMU is propelled by small nitrogen thrusters which are controlled by the astronaut's hands. Because no umbilical cord attaches the astronaut to the spacecraft, it gives much greater mobility than was available to earlier spacewalkers. Mission 41B was launched from the Kennedy Space Center (KSC) on 3rd February 1984, and landed back at KSC on 12th February.
© NASA/SCIENCE PHOTO LIBRARY
Dassault-Breguet Mystere 20 1st prototype F-WLKB
Dassault-Breguet Mystere 20 1st prototype F-WLKB at the 1964 Paris Air Show, shown with the two 3,300 lbf Pratt & Whitney JT12A-8 turbojet engines originally fitted. Of note is the anti-spin parachute housing under the rear fuselage , which housed a parachute that could be released to assist in recovering from spins. Re-named Falcon 20, F-WLKB also changed registration to F-BLKB, indicating that it was no longer considered experimental. F-WLKB - F-BLKB was later re-engined with General Electric CF700 turbofans, ( The CF700 was an aft-fan variant of the General Electric CJ610 turbojet, where the fan is attached to the LP turbine tips and driven directly rather than through a shaft. Date: 1964
© (c) The Peter Butt Aviation Collection / Mary Evans