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"This is very similar to astronomy where different magnitudes are assigned to the brightness of an astronomical object, depending on the range of wavelengths being measured."
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"I turned my attention for a while to gamma ray astronomy and soon began the first in a continous series of experiments at the Savannah River site to study the properties of the neutrino."
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Personal Development
"Until very recently, the heavenly bodies have been investigated only with reference to their position and their laws of motion, and a quarter of a century ago astronomy was little more than celestial topography."
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Personal Development
"Stars are fires that burn for thousands of years. Some of them burn slow and long, like red dwarfs. Others-blue giants-burn their fuel so fast they shine across great distances, and are easy to see. As they start to run out of fuel, they burn helium, grow even hotter, and explode in a supernova. Supernovas, they're brighter than the brightest galaxies. They die, but everyone watches them go."
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"I'm afraid our sun is nothing like whatever defined."
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"This sight... is by far the noblest astronomy affords."
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"Anything that had happened once on Earth should be expected millions of times elsewhere in the Universe, that was almost an article of faith among scientists."
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"From the first moment I handled my lens with a tender ardour."
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"The vortex. You can see the entire galaxy up there. More stars than you ever knew existed."
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"Did you say the stars were worlds, Tess?""Yes.""All like ours?""I don't know, but I think so. They sometimes seem to be like the apples on our stubbard-tree. Most of them splendid and sound - a few blighted.""Which do we live on - a splendid one or a blighted one?""A blighted one."
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"A galaxy is composed of gas and dust and stars - billions upon billions of stars. Every star may be a sun to someone."
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"I repeatedly have to correct this belief. In a sense, magnitude involves steps of 10 because every increase of one magnitude represents a tenfold amplification of the ground motion. But there is no 'scale of 10' in the sense of an upper limit."
Belief
"There is another common misapprehension that the magnitude scale is itself some kind of instrument or apparatus. Visitors will frequently ask to 'see the scale.'"
Will
"Incidentally, the usual designation of the magnitude scale to my name does less than justice to the great part that Dr. Gutenberg played in extending the scale to apply to earthquakes in all parts of the world."
Justice
"If the assumptions used in calculating energy are changed, then this seriously affects the final result, even though the same body of data might be used."
Body
"For example, some stars put out large amounts of energy in the infrared part of the spectrum, so that this can produce a different relative magnitude rating than using light energy from the middle of the spectrum."
Energy
"I usually point out that most loss of life and property has been due to the collapse of antiquated and unsafe structures, mostly of brick and other masonry."
Life
"Logarithmic plots are a device of the devil."
Devil
"I suggested that we might compare earthquakes in terms of the measured amplitudes recorded at these stations, with an appropriate correction for distance."
Correction
"In every area of the world where there is earthquake risk, there are still many buildings of this type; it is very frustrating to try to get rid of them."
Risk
"Emphasis was usually put on the horizontal acceleration factor, for the simple reason that ordinary structures have a built-in safety factor for the vertical component; that is, gravity."
Gravity
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