Phrase by 'Gabriel Lippmann'

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Most of these pictures, taken while travelling, were developed on the mantelpiece of a hotel room, which proves that the method is easy enough to carry out.

Author: Gabriel Lippmann - Scientist
  Easy , Enough , Hotel , Pictures


Life is short and progress is slow.

Author: Gabriel Lippmann - Scientist
  Life , Short , Progress , Life Is Short


When the shot is afterwards subjected to white light, colour appears because of selective reflection.

Author: Gabriel Lippmann - Scientist
  Light , White , Colour , Reflection


This result is due to a phenomenon of interference which occurs within the sensitive layer.

Author: Gabriel Lippmann - Scientist
  Result , Which , Within , Sensitive


The series of photographic operations, developing, washing, final drying, takes about quarter of an hour.

Author: Gabriel Lippmann - Scientist
  About , Operations , Quarter , Washing


The problem of direct colour photography has been facing us since the turn of the last century.

Author: Gabriel Lippmann - Scientist
  Us , Problem , Colour , Photography


The plate at each point only sends back to the eye the simple colour imprinted. The other colours are destroyed by interference. The eye thus perceives at each point the constituent colour of the image.

Author: Gabriel Lippmann - Scientist
  Back , Simple , Eye , Colour


The length of exposure (one minute in sunlight) is still too long for the portrait. It was fifteen minutes when I first began my work. Progress may continue.

Author: Gabriel Lippmann - Scientist
  Work , Long , Progress , Portrait


In the case of composite colour, an infinity of systems must be obtained for maxima infinitely slight and with an infinity of interval values separating them - that is to say, the whole thickness of the sensitive layer is occupied in continuous manner by these maxima.

Author: Gabriel Lippmann - Scientist
  Say , Values , Colour , Sensitive


I got quite good results from protein plates.

Author: Gabriel Lippmann - Scientist
  Good , Protein , Got , Results


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