Umbusi Logarithmic - main Computing iyunithi ekhulwini XX

Kule nkathi yobuchwepheshe computer, izibalo kakhulu ukuklama ubuchwepheshe kuyazenzakela, onjiniyela ungafaka kuphela ngokusebenzisa nemingcele interface yomsebenzisi-friendly edingekayo.

XX leminyaka ngokuthi izinto ezahlukene. Kwakuwusuku atomic isikhala, kanye nolwazi. Abaklami bezindiza phelelisa izindiza, futhi zaphumela biplanes ngingakhululekile okusheshayo MiGs leSupersonic, "Mirage" futhi "Phantoms." Giant abathwali izindiza nemikhumbi-ngwenya waqala igagasi ezilwandle nakuzo izilwandle nhlobo zindawo. Ngezinye Los Alamos (New Mexico) ihlolwe ibhomu le-athomu, futhi Obninsk eduze eMoscow, banikeza amandla wokuqala zenuzi. Rocket sathandwa phezulu ...

Injani le-athomu ibhomu, rocket ekuphonsweni?

Umlando ubonisa inqubo abasebenza ezifinyelelwe. Ososayensi futhi onjiniyela amajazi ezimhlophe imi umdwebo amabhodi, futhi ehlezi etafuleni ngithuka imidwebo, ukukhiqiza izibalo eziyinkimbinkimbi lobuchwepheshe kanye ezesayensi ukwengeza imishini. Ngezinye izikhathi e ezandleni Tupolev, Kurchatov Teller noma kuvela into engaziwa ukuba lendoda wanamuhla abasha - i-slide rule. Izithombe yalabo abanhliziyo intsha isidlulile emashumini eminyaka ngemva kwempi, kuze kube 80s, naye wabhala ngalesi kuncike nemudreny, ngempumelelo ubuyisela wokubala ngenkathi ngitadisha at sikhungo noma iziqu esikoleni. Futhi mqondo futhi wakholwa kuwo, ku rodnenky.

Ngasiphi isisekelo elungiswe ngesilinganiso logarithmic?

Isimiso esiyinhloko sale into yokhuni, anamatheliswe ngokucophelela phezu nge esikalini ezimhlophe Celluloid okusekelwe nsuku logarithmic, njengoba leli gama lisikisela. Okuningi ngokunembile, kwi -logarithm ezivamile. Phela, noma ubani kunifundisile izibalo zezinga eliphezulu, uyazi ukuthi sum yabo uyalingana logarithm umkhiqizo futhi ngenxa yalokho, okubangela kahle division by izingxenye ezinyakazayo, angaqinisekisa ukuthi ukuphindaphinda (futhi kungakho division), squaring (kanye impande akhiphe) iyoba elula.

umugqa Logarithmic usuthandwa ekhulwini XIX, lapho ithuluzi esiyinhloko izibalo kwaba izikolo evamile. Lokhu okusungulile - a godsend mbamba letimayelana nalesihloko ke ososayensi nonjiniyela. Hhayi kanye ababecabanga ukuthi zisebenza kanjani kule divayisi. Ukuze ufunde zonke tricks nokubona izinto ezingase zibe layo mshini egcwele, abalandeli abasha abangu ngokubala kumele bafunde izibonelelo ekhethekile, elizwakalayo. Kodwa angizisoli.

Babusi zihlukile, ngisho round

Nokho, inzuzo enkulu ephethe isikali logarithmic - alula futhi ngenxa yalokho nokwethenjelwa. Uma kuqhathaniswa nezinye izindlela zokukhokha (inqobo nje kwakungekho yokubala) imisebenzi Kwakuseshwa isheshe. Kodwa kukhona amaphuzu ukuthi akufanele unganakwa. Can kuphela ukwenza izibalo nge mantissas, okusho ukuthi, yonke (yisishiyagalolunye) futhi ingxenye ayingxenye ye inombolo, nge (ezintathu, omunye umbono omuhle kakhulu) aya emibili. I-oda yezinombolo adingekayo ukuze ugcine engqondweni. Kwakukhona nomunye ethile. umugqa Logarithmic encane, umshini ophathwa ngesandla kodwa futhi kunzima ukubiza - 30 cm, phela.

Kodwa usayizi akubi isithiyo bebuza izingqondo. Kulabo ngenxa imisebenzi yabo kufanele babale kudivayisi kuhlale nawe, yasungulwa ngo-compact ububanzi logarithmic. Dayela umcibisholo wamnika zifana nemini, kanti ezinye model amawashi ezibizayo ayigcina ku Ukudayela yayo. Yiqiniso, amathuba kule divayisi futhi ukunemba kwayo Kuthi wawungaphansi imingcele ohambelana emgqeni we-classic, kodwa kungenzeka ukuba ukuthwala ephaketheni lakho ngaso sonke isikhathi. Futhi ngaphezulu aesthetically olumnandi ukubukeka!