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Home > All Images > 2006 > July

July Gallery

Choose from 6,549 pictures in our July collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Mendeleyevs periodic table, 1869 Featured July Print

Mendeleyevs periodic table, 1869

Mendeleyev's periodic table, 1869. Mendeleyev's periodic table of 1869. This is the first version of the periodic table drawn up by the Russian chemist Dmitri Ivanovich Mendeleyev (1834-1907). He left gaps in the table for new elements, that were indeed later discovered, vindicating his theory. This version has the elements listed using chemical symbols, and ordered by atomic weight, but the fully correct chemical arrangement has not yet emerged. The final version (1871) had the elements arranged in the familiar vertical columns or groups. This version is dated (lower left) to 17 February 1869, and Mendeleyev's name is at top. This manuscript is from the Mendeleyev museum. Photographed in St Petersburg, Russia. See also H413/297

© RIA NOVOSTI/SCIENCE PHOTO LIBRARY

Guitar string vibrating Featured July Print

Guitar string vibrating

Guitar string vibrating. When plucked, the string vibrates at a specific frequency, which determines the pitch of the note. The vertical lines on the fretboard (centre right) of the guitar mark where fingers should be placed to shorten or lengthen the vibrating part of the string. Shortening the string produces a note with a higher pitch, lengthening it lowers the note. The vibration of the string itself does not create much sound, but the strings in turn cause the top plate of the guitar to vibrate, which is much louder. The hole at centre left allows these amplified sound waves to escape

© ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

WAT-13965 Lavandin - Lavender - with single Sunflower Featured July Print

WAT-13965 Lavandin - Lavender - with single Sunflower

WAT-13965
Lavandin - Lavender - with single Sunflower.
Sault, Vaucluse, France.
Lavandula latifolia X lavandula
Lavender properties: anti-infective, spasmolytic, analgesic, local anesthetic, diuretics, worming, calming, anti-depressive, healing.
M. Watson
Please note that prints are for personal display purposes only and may not be reproduced in anyway

© M.Watson/ardea.com