Kaleidoscope


Презентация изнутри:

Слайд 0

Kaleidoscope 900igr.net


Слайд 1

History Sir David Brewster began work leading towards invention of the kaleidoscope in 1815 when he was conducting experiments on light polarization. His initial design was a tube with pairs of mirrors at one end, pairs of translucent disks at the other, and beads between the two. Initially intended as a scientific tool, the kaleidoscope was later copied as a toy. Brewster later believed he would make money from this popular invention; however, a fault in his patent application allowed others to copy his invention.


Слайд 2

Initially intended as a scientific tool, the kaleidoscope was later copied as a toy. Brewster later believed he would make money from this popular invention; however, a fault in his patent application allowed others to copy his invention.


Слайд 3

A Kaleidoscope operates on the principle of multiple reflection, where several mirrors are together.


Слайд 4

Modern kaleidoscopes are made of brass tubes, stained glass, wood, steel, gourds or almost any material an artist can use.


Слайд 5

The part containing objects to be viewed is called the 'object chamber' or 'object cell'. Object cells may contain almost any material. 


Слайд 6

Sometimes the object cell is filled with a liquid so the items float and move through the object cell in response to a slight movement from the viewer.


Слайд 7

Kinds of kaleidoscopes A pentagonal dodecahedron A hexahedron (cube) A true sphere


Слайд 8

A tetrahedron An icosahedron A spiky icosahedron


Слайд 9

A torus The next kaleidoscope is named "Saturn's Ring." Another cube


Слайд 10

Industry Most kaleidoscopes are mass-produced from inexpensive materials, and intended as children's toys. At the other extreme are handmade pieces that display fine craftsmanship. 


Слайд 11

Craft galleries often carry a few kaleidoscopes, while other enterprises specialize in them, carrying dozens of different types from different artists and craftspeople.


Слайд 12

Понравилась презентация? Скажи спасибо! Рада помочь! http://vk.com/kfurman


×

HTML:





Ссылка: