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Home > Category Index for Science Quotations > Category Index T > Category: Thorium

Thorium Quotes (4 quotes)

All in all, the total amount of power conceivably available from the uranium and thorium supplies of the earth is about twenty times that available from the coal and oil we have left.
In The Intelligent Man's Guide to Science: The physical sciences (1960), 371.
Science quotes on:  |  Amount (16)  |  Available (6)  |  Coal (38)  |  Conceivable (2)  |  Earth (388)  |  Left (10)  |  Oil (27)  |  Power (200)  |  Supply (26)  |  Total (19)  |  Uranium (16)

My experiments proved that the radiation of uranium compounds ... is an atomic property of the element of uranium. Its intensity is proportional to the quantity of uranium contained in the compound, and depends neither on conditions of chemical combination, nor on external circumstances, such as light or temperature.
... The radiation of thorium has an intensity of the same order as that of uranium, and is, as in the case of uranium, an atomic property of the element.
It was necessary at this point to find a new term to define this new property of matter manifested by the elements of uranium and thorium. I proposed the word radioactivity which has since become generally adopted; the radioactive elements have been called radio elements.
In Pierre Curie, with the Autobiographical Notes of Marie Curie, trans. Charlotte and Vernon Kellogg (1923), 96. Also in reprint (2012) 45-46.
Science quotes on:  |  Intensity (17)  |  Nomencalture (3)  |  Property (77)  |  Radiation (19)  |  Radioactivity (24)  |  Uranium (16)

O. Hahn and F. Strassmann have discovered a new type of nuclear reaction, the splitting into two smaller nuclei of the nuclei of uranium and thorium under neutron bombardment. Thus they demonstrated the production of nuclei of barium, lanthanum, strontium, yttrium, and, more recently, of xenon and caesium. It can be shown by simple considerations that this type of nuclear reaction may be described in an essentially classical way like the fission of a liquid drop, and that the fission products must fly apart with kinetic energies of the order of hundred million electron-volts each.
'Products of the Fission of the Urarium Nucleus', Nature (1939), 143, 471.
Science quotes on:  |  Barium (3)  |  Bombardment (3)  |  Classical (10)  |  Consideration (58)  |  Demonstration (47)  |  Drop (16)  |  Fission (6)  |  Otto Hahn (2)  |  Kinetic Energy (2)  |  Lanthanum (2)  |  Liquid (23)  |  Neutron (8)  |  Nucleus (26)  |  Product (49)  |  Production (86)  |  Strontium (2)  |  Uranium (16)  |  Xenon (3)  |  Yttrium (3)

There's antimony, arsenic, aluminium, selenium,
And hydrogen and oxygen and
nitrogen and rhenium,
And nickel, neodymium, neptunium, germanium,
And iron, americium, ruthenium, uranium,
Europium, zirconium, lutetium, vanadium,
And lanthanum and osmium and astatine and radium,
And gold and protactinium and indium and gallium,
And iodine and thorium and thulium and thallium.
There's yttrium, ytterbium, actinium, rubidium,
And boron, gadolinium, niobium, iridium,
And strontium and silicon and silver and samarium,
And bismuth, bromine, lithium, beryllium and barium.
There's holmium and helium and hafnium and erbium,
And phosphorus and francium and fluorine and terbium,
And manganese and mercury, molybdenum, magnesium,
Dysprosium and scandium and cerium and cesium,
And lead, praseodymium and platinum, plutonium,
Palladium, promethium, potassium, polonium,
And tantalum, technetium, titanium, tellurium,
And cadmium and calcium and chromium and curium.
There's sulfur, californium and fermium, berkelium,
And also mendelevium, einsteinium, nobelium,
And argon, krypton, neon, radon, xenon, zinc and rhodium,
And chlorine, cobalt, carbon, copper, tungsten, tin and sodium.
These are the only ones of which the news has come to Harvard,
And there may be many others, but they haven't been discarvard.
[To the tune of I am the Very Model of a Modern Major General.]
Song, 'The Elements' (1959). In Tom Lehrer,Too Many Songs by Tom Lehrer: With Not Enough Drawings by Ronald Searle (1981), 151.
Science quotes on:  |  Aluminium (3)  |  Antimony (4)  |  Argon (2)  |  Arsenic (6)  |  Barium (3)  |  Beryllium (2)  |  Bismuth (6)  |  Boron (4)  |  Bromine (3)  |  Calcium (3)  |  Carbon (36)  |  Chlorine (11)  |  Chromium (2)  |  Cobalt (4)  |  Copper (17)  |  Element (106)  |  Erbium (2)  |  Fluorine (4)  |  Francium (2)  |  Gold (43)  |  Helium (7)  |  Hydrogen (34)  |  Iodine (7)  |  Iridium (3)  |  Iron (50)  |  Lanthanum (2)  |  Lead (58)  |  Lithium (3)  |  Magnesium (4)  |  Manganese (2)  |  Mercury (39)  |  Neon (4)  |  Nickel (2)  |  Nitrogen (17)  |  Osmium (3)  |  Oxygen (44)  |  Palladium (2)  |  Phosphorus (15)  |  Platinum (6)  |  Plutonium (2)  |  Polonium (5)  |  Potassium (11)  |  Radium (18)  |  Rhodium (2)  |  Silicon (3)  |  Silver (23)  |  Sodium (9)  |  Song (10)  |  Strontium (2)  |  Tantalum (2)  |  Tin (11)  |  Titanium (2)  |  Tungsten (2)  |  Uranium (16)  |  Xenon (3)  |  Yttrium (3)  |  Zinc (3)  |  Zirconium (2)


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