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

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.

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

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

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.

During exposure, interference takes place between the incident rays and those reflected by the mirror, with the formation of interference fringes half a wavelength distant from each other.

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.

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

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.

I got quite good results from protein plates.

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

Life is short and progress is slow.

The United States is considered a puritanical society by many Western nations. For example, they can't believe we hassle public servants like General David Petraeus because he had a mistress. In France, if a powerful man doesn't have a mistress, he's considered a wimp.

Atheism is nothing more than the noises reasonable people make when in the presence of religious dogma.

I had ridiculous amounts of energy. Mom's like, you're driving me crazy - do you want to try gymnastics? From the moment I started it, I loved it and it kind of was like storybook from there.

The last fight for the white metal is to be made here in this country and in this House, my friends.

I am a fortunate homosexual man. I am very blessed to be who I am.

Clean, tasty, real foods do not come processed in boxes or bags; they come from the earth, the sea, the field, or the farm.

Whenever there's a new form of media, we always think it's going to replace the old thing, and it never does. We still have radio, however long after TV was introduced.

One reason people get divorced is that they run out of gift ideas.

I say we need to repeal Obamacare as fast as we can.

The role of liquidity in systemic events provides yet another reason why, in the future, a more system wide or macroprudential approach to regulation is needed.

Unleash your lifes potential Dont hold back on the things youve always wanted to do. Go for it

A DJ can't just play one song. It's about playing a set, or how you connect songs in those two hours, and where you place them.

Hollywood is a fast-paced, competitive world.

I remember opening my dad's closet and there were, like, 40 suits, every color of the rainbow, plaid and winter and summer. He had two jewelry boxes full of watches and lighters and cuff links. And just... he was that guy. He was probably unfulfilled in his life in many ways.

The democracy will cease to exist when you take away from those who are willing to work and give to those who would not.

Any agreement with Iran should have strong verification and enforcement safeguards to prevent future cheating.

It hurt me deeply, this reputation as tough, hard, mean.

I started a big part of my career in Vegas.

I like analyzing human behavior. It's complex. That's what keeps me going.

I've never had a very quiet voice. I tried in choir to make it smaller, and it just didn't work out. And I listened to a lot of soul music when I was growing up on my own accord. But I was mostly into Mama Cass and Gladys Knight, and they all had big voices too; just different than mine.

Swimming is great because there are levels of goals. First, when I was four, it was making it to the other end and overcoming the fear of standing up in front of everybody at a swim meet because I was such a shy kid.

Hope is a belief in a better tomorrow.

A good theory explains a lot but postulates little.

Although I have no plans to tweet, I am fascinated by developments on the Internet.