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By Jacqueline Fortey

The area we are living in is formed via remarkable advancements, discoveries and innovations of technological know-how. those information-packed books chart the development of those achievements and current the reader with strong textual content and proof a few large choice of technology and technological themes.

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Most particles passed directly through, a few were deflected at a slight angle, and a very few bounced almost directly back, pushed by a powerful force inside the gold atoms. The experiment showed that atoms are mostly empty space, but at the centre there is an area of positive charge – the nucleus. Wire carries current through cylinder Particles enter window Connecter Ernest Rutherford describing his particle-scattering experiment, 1909 Copper cylinder contains lowpressure gas Screw terminal attaches to power supply Electron moves around nucleus Inside the atom The structure of the atom was gradually pieced together to produce this model, with a central nucleus orbited (circled) by fast-moving electrons.

Atoms were believed to be the smallest particles of matter, so how could something so tiny be weighed? Dalton devised a way of comparing the weights of different atoms with the weight of one atom of the lightest element, hydrogen. Atomic number Atomic weight Chemistry cards Mercury Magnesium Mendeleyev made a card for each element and wrote on it its symbol, its weight, and its physical properties. He arranged the cards in rows on a table in order of atomic weight, with the lightest first (hydrogen).

He was a keen botanist and created a system for naming and classifying living things, based on their sexual characteristics. His method of naming plants is still used today. Linnaeus’s pupil, Daniel Solander, accompanied Joseph Banks on his voyage with Captain Cook. ” John Ellis writing to Carl Linnaeus about Cook’s first voyage, 1768 Cook’s First Voyage On 12 August 1768, a Royal Society expedition set sail from Plymouth on a scientific voyage to Tahiti, under the command of James Cook and with Banks aboard as botanist.

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