Quotes About Fermi

Some recent work by E. Fermi and L. Szilard, which has been communicated to me in manuscript, leads me to expect that the element uranium may be turned into a new and important source of energy in the immediate future. Certain aspects of the situation which has arisen seem to call for watchfulness and, if necessary, quick action on the part of the Administration.

The word meltdown had not yet entered the reactor engineer's vocabulary—Fermi was only then inventing that specialty—but that is what Compton was risking, a small Chernobyl in the midst of a crowded city.

I had become a bit annoyed with Fermi . . . when he suddenly offered to take wagers from his fellow scientists on whether or not the bomb would ignite the atmosphere, and if so, whether it would merely destroy New Mexico or destroy the world.

Then everyone began to wonder why he didn't shut the pile off," Anderson continues. 1701 "But Fermi was completely calm. He waited another minute, then another, and then when it seemed that the anxiety was too much to bear, he ordered 'ZIP in!' " It was 3: 53 P.M. Fermi had run the pile for 4.5 minutes at one-half watt and brought to fruition all the years of discovery and experiment. Men had controlled the release of energy from the atomic nucleus.

Fermi thought plutonium production needed an area a mile wide and two miles long for safety. Compton proposed building piles of increasing power to work up to full-scale production and was considering alternative sites in the Lake Michigan Dunes area and in the Tennessee Valley.

The discovery of slow-neutron radioactivity meant that Fermi's group had to work its way through the elements again looking for different and enhanced half-lives—which is to say, different isotopes and decay products.

In mid-November Fermi reorganized his team into two twelve-hour shifts, a day crew under Walter Zinn (who continued to supervise materials production as well), a night crew under Herbert Anderson. Construction began on Monday morning, November 16, 1942.

Fermi had scalers that counted off boron trifluoride readings with loud clicks and a cylindrical pen recorder that performed a similar function silently, graphing pile intensities in ink on a roll of slowly rotating graph paper. For calculations he relied on his own trusted six-inch slide rule, the pocket calculator of its day.

This time," he told Weil, "take the control rod out twelve inches." Weil withdrew the cadmium rod. Fermi nodded and ZIP was winched out as well. "This is going to do it," Fermi told Compton. The director of the plutonium project had found a place for himself at Fermi's side. "Now it will become self-sustaining. The trace [on the recorder] will climb and continue to climb; it will not level off.

Suddenly Fermi raised his hand. "The pile has gone critical," he announced. No one present had any doubt about it.

Fermi allowed himself a grin. He would tell the technical council the next day that the pile achieved a k of 1.0006.1700 Its neutron intensity was then doubling every two minutes. Left uncontrolled for an hour and a half, that rate of increase would have carried it to a million kilowatts.

He waited another minute, then another, and then when it seemed that the anxiety was too much to bear, he ordered 'ZIP in!' Ã¢â'¬Â It was 3:53 P.M. Fermi had run the pile for 4.5 minutes at one-half watt and brought to fruition all the years of discovery and experiment. Men had controlled the release of energy from the atomic nucleus.

Fermi sent them out again in the early 1930s, after the decision to go into nuclear physics: Segrè to work with Otto Stern in Hamburg, Amaldi to Leipzig to the laboratory of the physical chemist Peter Debye, Rasetti to Lise Meitner at the KWI.

On the cold winter afternoon of 2 December 1942, in a disused doubles squash court under the stands of the University of Chicago football stadium, the Nobel laureate physicist Enrico Fermi, a refugee from Fascist Italy, calmly initiated the world's first controlled nuclear-fission chain reaction.

Not even his most important discovery kept Fermi from going home for lunch.

Fermi, superb experimentalist that he was, contributed valuably to the program of experimental studies, defining with clarity problems that needed to be examined. For him the war work was duty, however, and the eager conviction he found on the Hill puzzled him. "After he had sat in on one of his first conferences here," Oppenheimer recalls, "he turned to me and said, 'I believe your people actually want to make a bomb.' I remember his voice sounded surprised.

She deemed Fermi's work inconclusive, and in late 1934, she published her views on Fermi's findings in an article titled "Über Das Element 93" (On Element 93), in which she proposed an idea that seemed unrealistic

One of our measurement mentors, Enrico Fermi, was an early user of what was later called a "Monte Carlo simulation.

Properly funding federal research at Argonne National Labs and Fermi National Accelerator Labs will also create jobs and directly benefit the Eleventh District.

When the first atomic bomb was exploded successfully, Oppenheimer and Fermi flashed the code word: Baby satisfactorily born. A most befitting yell o triumph for the coming of age of technological civilization and for the death of culture. Since then hundreds of thousands of babies were satisfactorily born with defective genes or died of leukemia brought on by radiation. Compulsive creation, genius, what the hell do you want, clap censorship on science?

Thinking about paradoxes is the way human understanding advances. I think the Fermi paradox is telling us something very profound about the universe, and our place in it.

Returning from Germany to Italy in late summer of 1923, Fermi found his interest turning increasingly to statistical mechanics, a subject that would allow

Fermi started to calculate on his own, saying nothing, and in a direct, simple way found the essential point. The ability of a centrifuge to separate U-235 from U-238 was proportional to its length and to the fourth power of the peripheral speed of its rotor. Karl

Somewhere in between discovering various heretofore cripplingly socially anxious particles and transuranic elements and digging through plutonium to find the treat at the bottom of the nuclear box, he found the time to consider what would come to be known as the Fermi Paradox.