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Презентация на тему Kaleidoscope

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
Kaleidoscope History   Sir David Brewster began work leading towards invention of Initially intended as a scientific tool, the kaleidoscope was A Kaleidoscope operates on the principle of multiple reflection, where several mirrors are together. Modern kaleidoscopes are made of brass tubes, stained glass, wood, steel, gourds or almost any material an artist can use. The part containing objects to be viewed is called Sometimes the object cell is filled with a liquid so the items Kinds of kaleidoscopesA pentagonal dodecahedronA hexahedron (cube)A true sphere A tetrahedronAn icosahedronA spiky icosahedron A torusThe next kaleidoscope is named IndustryMost kaleidoscopes are mass-produced from inexpensive materials, and intended as children's toys. Craft galleries often carry a few kaleidoscopes, while other enterprises specialize in Понравилась презентация? Скажи спасибо! Рада помочь! http://vk.com/kfurman
Слайды презентации

Слайд 2 History
Sir David Brewster began work

History  Sir David Brewster began work leading towards invention of

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 3 Initially intended as a scientific

Initially intended as a scientific tool, the kaleidoscope was

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 4 A Kaleidoscope operates on the principle of multiple

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

reflection, where several mirrors are together.


Слайд 5 Modern kaleidoscopes are made of brass tubes, stained glass, wood, steel, gourds or almost

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

any material an artist can use.


Слайд 6 The part containing objects to

The part containing objects to be viewed is called

be viewed is called the 'object chamber' or 'object

cell'.

Object cells may contain almost any material. 


Слайд 7 Sometimes the object cell is filled with a

Sometimes the object cell is filled with a liquid so the

liquid so the items float and move through the

object cell in response to a slight movement from the viewer.

Слайд 8 Kinds of kaleidoscopes
A pentagonal dodecahedron
A hexahedron (cube)
A true

Kinds of kaleidoscopesA pentagonal dodecahedronA hexahedron (cube)A true sphere

sphere


Слайд 9 A tetrahedron
An icosahedron
A spiky icosahedron

A tetrahedronAn icosahedronA spiky icosahedron

Слайд 10 A torus
The next kaleidoscope is named "Saturn's Ring."
Another

A torusThe next kaleidoscope is named

cube


Слайд 11 Industry
Most kaleidoscopes are mass-produced from inexpensive materials, and

IndustryMost kaleidoscopes are mass-produced from inexpensive materials, and intended as children's

intended as children's toys. At the other extreme are

handmade pieces that display fine craftsmanship. 

Слайд 12 Craft galleries often carry a few kaleidoscopes, while

Craft galleries often carry a few kaleidoscopes, while other enterprises specialize

other enterprises specialize in them, carrying dozens of different

types from different artists and craftspeople.

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