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Images Dated 23rd February 1995

Choose from 7 pictures in our Images Dated 23rd February 1995 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Mirror/0500to0599 00540/children playing football annual 5 a side
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Visualisation of quark structure of uranium
Science Photo Library
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Hearing
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Children playing football in an annual 5-a-side football tournament held at Bishopsgarth
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Visualisation of quark structure of silicon
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Brian Clough former Nottingham Forest Manager leaving the Cafe Royal after NSC Lunch EPD
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Brian Clough former Nottingham Forest Manager kisses Bob Willis as he leaves
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Featured 23 Feb 1995 Image

Visualisation of quark structure of uranium

Quark structure of the uranium nucleus. Computer visualisation of the nucleus of a uranium atom. The most common isotope, uranium-238, consists of 92 protons and 146 neutrons. These are represented as triplets of quarks surrounded by quantum clouds of gluons. Protons have two "up" quarks (green) and one "down" quark (pink); neutrons have one "up" and two "down". The clouds of virtual gluons are responsible for mediating the strong nuclear force; this holds the quarks together within the particles and also overcomes the electrical repulsion between adjacent protons