Kana imwe yenhamba yako yeLincoln Memorial ine musi iwoyo usati wasvika 1982 , inoumbwa ne 95% yendarira. Kana musi wacho muna 1983 kana kuti gare gare , unogadzirwa ne 97.5% zinc uye unoputirwa nemucheka wakaisvonaka wendarira.
Nepennies yakagadzirwa muna 1982 , apo zvose zvemhangura uye zinc cents zvakaitwa, nzira yakachengeteka uye yakanakisisa yekuziva kuti yakagadzirwa ndeyekuyera. Mipeneni yakawanda yemhangura inorema 3,11 gm (+/- 0.130 g.), Asi mhangura yemapine yakawanda yakapetwa inokwana 2.5 gramu (+/- 0.100 g.).
Kare kumashure kwema1970, mutengo unokwira wemhangura wakanga uri kukonzera mari yekuita penny pamusoro pehupamhi hwechiso chemazana zana. Nenzira yakanaka, mutengo wemhangura wakadonha uye kukohwa kwakapfuurira. Zvinosuruvarisa, mutengo unowedzera wemhangura mukutanga kwema1980 wakamanikidza United States Mint kuchinja kuumbwa kwepeni zvachose. Izvi zvaiva zvekudzivirira kusvibiswa kwepennies. Icho chave chiri chiitiko chakaitika muUnited States kuti kana hutengo hwehutu hwechikwereti hunodarika kukosha kwechiso chake, vanhu vachanyunguduka mari yacho kuitira kuti vatengese dombo rakasvibiswa uye vanoita purofiti.
Muchiedza chekuvhiringidza kupera kwepennies muna 1982, United States Mint yakaita hafu yemapeni kubva mumhangura yakasimba uye imwe hafu yemhangura yakaiswa zinc. Kunyange zvazvo zvisingabvumirwe nemutemo kusungira mapeni uye kutengesa tsvina yakasvibirira, vanhu vachiri kukwevera mirefu yakasimba emhangura kunze kwekupararira kuitira kuti vadzivirire nokuda kwehuwandu hwemhangura.
Nzira Yakanakisisa Yokutaura Kusiyana
Iva nechokwadi chokuti unoshandisa chiyero chakarurama zvakakwana kuti uone chegumi che gram (0.1 g.) Kana zviri nani. Kana iwe uchiyera peni yemincini pachiyero chinogona kungonyora zvizere 1 gram increment, penny inowanzoonesa magiramu matatu, sezvo chikamu chinotenderera 2.5 gram zinc penny kusvika kune 3.
Rudzi rwakashata rwezinga runogona kutsausa paunenge uchiedza kutsanangura mhangura uye zinc pennies.
Drop Test for Copper and Zinc Pennies
Kana iwe usina chegumi-gram zviyero zvakakosha, unogona kushandisa "dhesi" test. Iwe unoda zvakaoma Formica kana granite countertop pamusoro, peni inozivikanwa yemhangura, uye inoziva zinc penny. Drop mumwe nomumwe patafura, kuteerera inzwi rayo rakasiyana. Zinc pennies dzine rudzi rwe "flat", rakapetwa, asi michina yemhangura ine yakanyanyisa, yakanyanyisa "ring" inonzwika.
Kana uchinge uine manzwiro akanaka ekunyatsorudzirwa kworudzi rupi nerumwe, tanga kubvisa yako 1982 imwe panguva imwe chete, kuteerera inzwi ravanoita, uye iwe unogona kukwanisa kuarongedza nekunyorera kwesimbi. Zviri pachena, iyi miedzo haisi yakavimbika seyo kuirema, asi inofanira kukubatsira iwe kutarisa akawanda emhangura uye zinc pennies.
Chenjedzo : Ingoshandisa chirwere chekudonsa pari pari kuparadzanisa pennies uko uri kutsvaga mhangura uye zinc nokuda kwehuwandu hwechipiri chete. Usambofa uchinge uchinge uchinge uine mari yeChipupuriro muSvondo ino kuti uedze, sezvo kuregera mapeji pane zvakaoma kunogona kukonzera kukanganisa kwakanyanya kunogona kuita kuti mari yekusungirirwa isati iri yakakosha.
Cherrypicker's Tip
Cherechedzai "zviitiko zvemukati" zvinyorwa! "Kuchinja" zvikanganiso zvakaitika muLincoln Memorial Cents series apo Mint yepamusoro yakashandisa mhangura yakagadzirwa nemhangura kuti iite mapeji mashomanana muna 1983.Iyo "yakaipa" peniki inorema 3,11 gm, panzvimbo ye 2.5 ye copper-plated zinc cents.
Kana iwe ukawana mhangura yakasimba 1983, inogona kunge yakakodzera ... peni yakaisvonaka! Tora iyo kumutengesi wemunharaunda unovimbwa naye kuti uone zvaunowana.
Yakarongedzwa na: James Bucki