Advanced MRI brain scan
Advanced MRI brain scan. This 3D magnetic resonance imaging (MRI) scan of a normal human brain has been produced by the 3T MRI scanner at Neurospin, one of the most advanced MRI research centres in the world. The front of the brain is at left. The coloured lines indicate the many neural pathways that exist in the brain. Neurospin has 3T and 7T scanners. The 'T' designations refer to the magnetic field strengths of 3 Tesla and 7 Tesla. These are extremely strong magnetic fields, and hence this technique is known as ultra high-field magnetic resonance imaging. The high magnetic field strength allows detailed examination of the brain and brain disorders. Neurospin was founded in 2006, and is located near Paris, France.
© Philippe Psaila/Science Photo Library
Wright Model A aircraft flight, 1909
Wright Model A aircraft flight, 1909. US aviation pioneer Wilbur Wright (1867-1912) taking off in a Wright Model A, one of several aircraft built by him and his brother Orville Wright (1871-1948). This flight was one of two that took place on 29 September 1909. On one of the flights, Wilbur piloted the aircraft over New York Harbour and around the Statue of Liberty, seen by millions in a flight lasting less than five minutes. It was part of a celebration of 300 years of New York history. A canoe (seen here) was attached to the aircraft in case of a water landing. This photograph is from the Bain News Service, one of the USA's earliest news picture libraries.
© LIBRARY OF CONGRESS/SCIENCE PHOTO LIBRARY
Yuri Gagarin, Soviet cosmonaut
Yuri Gagarin (1934-1968), soviet cosmonaut and first man in space. Gagarin made the first manned space flight on 12 April 1961. He orbited the Earth once in the Vostok 1 spacecraft, a flight that lasted 1 hour and 48 minutes. Gagarin became a hero in the Soviet Union and famous worldwide. He later returned to active service as a test pilot, dying in a crash during a training flight in 1968. His ashes were interred with full military honours in the Kremlin Wall. Photographed in 1961.
© RIA NOVOSTI/SCIENCE PHOTO LIBRARY