The Manhattan Project was a research and development project that produced
the first nuclear ... There were fears that a German atomic bomb project would
develop one first, ... physicists Leó S...
U-238. or U 238. Word Origin. Chemistry. 1. uranium 238. ... If you can use your
demons to separate U-235 from U-238, you can use them for separating gold ...
The most salient difference is in how each isotope can be induced to undergo
fission. U-235 is ... Erik Anson, Physics/Cosmology Ph.D. student ...  We can
use fast neutrons only if we're producing staggeringly huge ... The chemical
behavior is so similar as to be identical from what I understand (though I am not a
And if you recycle, you will eventually be able to use 100% of the uranium, and
not the less than one percent ... And let me call them by their names, uranium-
235 and uranium-238. .... So it totally changes the character of the nuclear waste
problem. ... Q: Do you think most people trust the DOE nuclear physicists, the
Concern about the military potential of fission would lead physicists to ... Edwin
McMillan used the large neutron flux from Lawrence's ... McMillan and Seaborg
would share the Nobel Prize for chemistry in 1951 for their work on transuranics.
... the scarce isotope uranium-235 from the much more abundant uranium-238.
Late in 1938, in Berlin-Dahlem, an experiment in nuclear chemistry touched off a
wave ... which even reached the front pages of the most conservative
newspapers. ... Dr. Lise Meitner, a mathematical physicist, knew, however, that
something .... This fissionable isotope has an atomic weight of 235 instead of 238
which is the ...
We use the photoCIDNP effect to spatially encode NMR experiments with a laser.
.... Systematic deformation of a precipitation front into a 2D stationary profile can
be ... and discussed by a simple way taking only acid-base chemistry into
account. ... Pages 235-238; Vytautas Balevicius, Zofia Gdaniec, Vytautas
Physicists and chemists commonly designate atomic number by the ... the upper-
case letter A. If the letter N is similarly used to designate the number of neutrons
... the rare U-235 isotope would fission under neutron bombardment, while U-238
.... First, it stopped the projectile piece from bashing its way through the front end
The news of fission that Bohr had in his head would be of consuming interest to ...
the blindness of physicists and chemists to fission in the mid-1930s can be ....
produced grams of uranium 235 (U-235), but not yet the kilograms that would be
... years after Albert Einstein had written a letter to President Roosevelt drawing ...
would have suggested that building a nuclear explosive might be feasible. ...
2005, when The New York Times wrote: “In 1939, the German physicist Werner
.... bomb works, in order to communicate effectively with Hahn, a chemist, not .....
why you used to tell me that one needed 50 kilograms of '235' in order to do