Home
Authors
Topics
Quote of the Day
Home
Authors
Topics
Quote of the Day
Home
Authors
Topics
Quote of the Day
Top 100 Quotes
Professions
Nationalities
Nobel Prize Quotes
Popular Topics
Love Quotes
Life Quotes
Inspirational Quotes
Philosophy Quotes
Humor Quotes
Wisdom Quotes
God Quotes
Truth Quotes
Happiness Quotes
Hope Quotes
[Concerning] phosphorescent bodies, and in particular to uranium salts whose phosphorescence has a very brief duration. With the double sulfate of uranium and potassium ... I was able to perform the following experiment: One wraps a Lumière photographic plate with a bromide emulsion in two sheets of very thick black paper, such that the plate does not become clouded upon being exposed to the sun for a day. One places on the sheet of paper, on the outside, a slab of the phosphorescent substance, and one exposes the whole to the sun for several hours. When one then develops the photographic plate, one recognizes that the silhouette of the phosphorescent substance appears in black on the negative. If one places between the phosphorescent substance and the paper a piece of money or a metal screen pierced with a cut-out design, one sees the image of these objects appear on the negative. One can repeat the same experiments placing a thin pane of glass between the phosphorescent substance and the paper, which excludes the possibility of chemical action due to vapors which might emanate from the substance when heated by the sun's rays. One must conclude from these experiments that the phosphorescent substance in question emits rays which pass through the opaque paper and reduces silver
Henri Becquerel
Strange star-like object over Oslo right before Obama arrives. A gift of a golden medal given by a group of wise men... Nah.
Craig Ferguson
Peace is the music of every soul. Our glory lies in understanding, listening and honoring that music
Amit Ray
It was quite the most incredible event that has ever happened to me in my life. It was almost as incredible as if you fired a 15-inch shell at a piece of tissue paper and it came back and hi
Ernest Rutherford
It's been suggested that if the super-naturalists really had the powers they claim, they'd win the lottery every week. I prefer to point out that they could also win a Nobel Prize for discovering fundamental physical forces hitherto unknown to science. Either way, why are they wasting their talents doing party turns on television?By all means let's be open-minded, but not so open-minded that our brains drop out.
Richard Dawkins
It was quite the most incredible event that has ever happened to me in my life. It was almost as incredible as if you fired a 15-inch shell at a piece of tissue paper and it came back and hi
Ernest Rutherford
Related Topics
Science
Quotes
Atomic Science
Quotes
Glory Of Living
Quotes
Jesus
Quotes
Peace Movement
Quotes
Peace On Earth
Quotes
Peace Making
Quotes
Economics
Quotes