Meta tags:

Headings (most frequently used words):

view, source, for, john, archibald, wheeler,

Text of the page (most frequently used words):
the (34), wheeler (22), sfn (14), ford (10), 1998 (9), and (9), you (9), for (8), this (8), view (7), was (7), ref (7), john (6), wikipedia (6), nuclear (6), date (6), archive (6), his (6), have (6), #archibald (5), org (5), reactor (5), with (5), web (5), url (5), neutron (5), its (5), been (5), that (5), 135 (5), blocked (5), edit (5), source (4), search (4), manhattan (4), project (4), january (4), which (4), chain (4), reaction (4), name (4), http (4), history (4), physics (4), dupont (4), had (4), not (4), 1944 (4), brother (4), haunted (4), page (4), add (3), about (3), from (3), https (3), after (3), war (3), design (3), christy (3), cite (3), title (3), first (3), february (3), 1994 (3), file (3), hanford (3), over (3), reactors (3), washington (3), product (3), cross (3), section (3), hours (3), later (3), has (3), reason (3), joe (3), issue (3), revolutionized (3), who (3), can (3), other (3), information (3), block (3), globally (3), pages (3), address (3), read (3), hide (3), move (3), sidebar (3), tools (3), main (3), languages (2), contact (2), wiki (2), metallurgical (2), laboratory (2), chicago (2), moved (2), 1942 (2), wrote (2), robert (2), pure (2), fissionable (2), materials (2), solution (2), plutonium (2), oral7 (2), www (2), aip (2), ohilist (2), 5908_7 (2), html (2), last (2), publisher (2), report (2), 1943 (2), gave (2), weinberg (2), engineers (2), jones (2), 1985 (2), worked (2), wilmington (2), where (2), family (2), just (2), site (2), even (2), some (2), fission (2), poison (2), would (2), april (2), than (2), capture (2), barns (2), unexpectedly (2), then (2), half (2), life (2), daughter (2), xenon (2), out (2), additional (2), personal (2), message (2), journal (2), nautil (2), time (2), 2014 (2), october (2), here (2), were (2), thinking (2), blocks (2), editing (2), recent (2), abuse (2), affect (2), are (2), believe (2), done (2), wrong (2), links (2), help (2), will (2), your (2), current (2), range (2), following (2), appearance (2), upload (2), changes (2), article (2), log (2), create (2), account (2), donate (2), menu (2), topic, mobile, cookie, statement, statistics, developers, code, conduct, legal, safety, contacts, disclaimers, privacy, policy, retrieved, john_archibald_wheeler, return, soon, japanese, bombing, pearl, harbor, brought, into, world, accepted, request, arthur, compton, join, university, there, joining, eugene, wigner, group, studying, paper, important, purification, process, interview, session, vii, kenneth, american, institute, 20130201171058, 2013, declassified, december, 1955, tech, last1, first1, author, link, first2, last2, osti, 4369066, moderator, replacing, enrico, fermi, term, slower, downer, tube, loader, jpg, thumb, right, loading, tubes, united, states, army, corps, took, responsibility, detailed, construction, became, part, staff, 203, closely, commuting, between, delaware, headquarters, march, task, build, but, entire, production, complex, state, 210, 211, work, progressed, relocated, again, july, richland, scientific, buildings, known, 300, area, before, started, three, september, concerned, might, accumulation, impede, ongoing, absorbing, many, thermal, needed, continue, rhodes, 1986, 558, predicted, reduce, reactivity, less, one, percent, long, more, 100, 000, barn, unit, shut, down, restarted, suspected, iodine, turned, well, two, million, problem, corrected, adding, fuel, slugs, burn, working, fighting, italy, sent, him, postcard, simple, hurry, nautilus, amanda, gefter, access, 2019, 20190417094440, already, too, late, killed, close, creating, weapon, end, couldn, stop, haven, stopped, since, could, left, widow, baby, mary, married, physicist, james, hartle, copy, kinds, restrict, specific, service, providers, telecom, companies, response, vandalism, sometimes, users, unrelated, review, below, assistance, anything, useful, global, mistake, find, instructions, stewards, wizard, while, still, able, meta, usually, expire, 2027, 194, visit, affected, faq, open, proxy, webhost, jon, kolbert, affects, all, wikimedia, wikis, most, people, see, nothing, does, ability, permission, wikidata, item, projects, switch, legacy, parser, get, shortened, related, what, general, actions, english, talk, special, community, portal, learn, contribute, random, events, contents, navigation, jump, content,

Text of the page (random words):
view source for john archibald wheeler wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in view source for john archibald wheeler add languages article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file page information get shortened url switch to legacy parser in other projects wikidata item appearance move to sidebar hide john archibald wheeler you do not have permission to edit this page for the following reason this ip address range has been globally blocked this does not affect your ability to read wikipedia pages most people who see this message have done nothing wrong some kinds of blocks restrict editing from specific service providers or telecom companies in response to recent abuse or vandalism and can sometimes affect other users who are unrelated to that abuse review the information below for assistance if you do not believe that you have done anything wrong this block affects editing on all wikimedia wikis the ip address or range 5 135 0 0 16 has been globally blocked by jon kolbert for the following reason s open proxy webhost visit the faq if you are affected this block will expire on 04 29 8 january 2027 your current ip address is 5 135 42 194 even while globally blocked you will usually still be able to edit pages on meta wiki if you believe you were blocked by mistake you can find additional information and instructions in the stewards block wizard other useful links global blocks help i have been blocked you can view and copy the source of this page manhattan project soon after the japanese bombing of pearl harbor brought the u s into world war ii wheeler accepted a request from arthur compton to join the manhattan project s metallurgical laboratory at the university of chicago he moved there in january 1942 sfn wheeler ford 1998 p 31 joining eugene wigner s group which was studying nuclear reactor design sfn wheeler ford 1998 p 39 he co wrote a paper with robert f christy on chain reaction of pure fissionable materials in solution which was important in the plutonium purification process ref name oral7 cite web url http www aip org history ohilist 5908_7 html title interview with dr john wheeler session vii first kenneth w last ford date february 14 1994 publisher american institute of physics archive url https web archive org web 20130201171058 http www aip org history ohilist 5908_7 html archive date february 1 2013 ref it was declassified in december 1955 ref cite tech report last1 christy first1 r f author link robert f christy first2 j a last2 wheeler title chain reaction of pure fissionable materials in solution publisher metallurgical laboratory date january 1 1943 osti 4369066 ref he gave the neutron moderator its name replacing enrico fermi s term slower downer sfn wheeler ford 1998 p 40 sfn weinberg 1994 p 14 file b reactor tube loader jpg thumb right loading tubes of the hanford b reactor after the united states army corps of engineers took over the manhattan project it gave dupont responsibility for the detailed design and construction of the reactors sfn weinberg 1994 pp 27 30 wheeler became part of dupont s design staff sfn jones 1985 p 203 he worked closely with its engineers commuting between chicago and wilmington delaware where dupont had its headquarters he moved his family to wilmington in march 1943 sfn wheeler ford 1998 pp 46 48 dupont s task was to build not just nuclear reactors but an entire plutonium production complex at the hanford site in washington state washington sfn jones 1985 pp 210 211 as work progressed wheeler relocated his family again in july 1944 to richland washington where he worked in the scientific buildings known as the 300 area ref name oral7 sfn wheeler ford 1998 pp 46 48 even before the hanford site started up the b reactor the first of its three reactors on september 15 1944 wheeler had been concerned that some nuclear fission product s might be nuclear poison s the accumulation of which would impede the ongoing nuclear chain reaction by absorbing many of the thermal neutron s needed to continue a chain reaction sfn rhodes 1986 pp 558 60 in an april 1942 report he predicted that this would reduce the reactivity by less than one percent so long as no fission product had a neutron capture neutron cross section cross section of more than 100 000 barn unit barns sfn wheeler ford 1998 p 56 after the reactor unexpectedly shut down and then just as unexpectedly restarted about 15 hours later he suspected iodine 135 with a half life of 6 6 hours and its daughter product xenon 135 which has a half life of 9 2 hours xenon 135 turned out to have a neutron capture cross section of well over two million barns the problem was corrected by adding additional fuel slugs to burn out the poison sfn wheeler ford 1998 p 61 wheeler had a personal reason for working on the manhattan project his brother joe fighting in italy sent him a postcard with a simple message hurry up ref name haunted cite journal journal nautilus url http nautil us issue 9 time haunted by his brother he revolutionized physics title haunted by his brother he revolutionized physics first amanda last gefter date january 16 2014 issue 9 access date february 19 2014 archive date april 17 2019 archive url https web archive org web 20190417094440 http nautil us issue 9 time haunted by his brother he revolutionized physics ref it was already too late joe was killed in october 1944 here we were wheeler later wrote so close to creating a nuclear weapon to end the war i couldn t stop thinking then and haven t stopped thinking since that the war could have been over in october 1944 sfn wheeler ford 1998 p 61 joe left a widow and baby daughter mary jo who later married physicist james hartle sfn wheeler ford 1998 p 75 return to john archibald wheeler retrieved from https en wikipedia org wiki john_archibald_wheeler privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search view source for john archibald wheeler add languages add topic