Iqiniso ezithakazelisayo kakhulu mayelana ne-chemistry. i-chemistry Okuhlobene: Managing

Ekupheleni kwekhulu le-19 njengoba isayensi kwakhiwa i-chemistry organic. Amaqiniso ethakazelisayo ukusiza ukuqonda kangcono umhlaba futhi ufunde ukwenza kanjani ama-discovery amasha.

isidlo "Live"

Iqiniso lokuqala ezithakazelisayo mayelana chemistry kuziwa ekudleni engavamile. Omunye izitsha odumile cuisine Japanese - "Odori Don" - "nokudansa squid." Abaningi ezishaqisayo umbono wiggling tentacles squid esitsheni. Kodwa ungakhathazeki, akabe ahlupheke isikhathi eside futhi engazizwa lutho. Svezheosvezhevannogo squid wafakwa isitsha elayisi ngaphambi kokukhonza uthele usoso wesoya. tentacles squid baqala shwabanisa. Lokhu kungenxa isakhiwo okhethekile izinzwa ukuthi ngesikhathi esithile ngemva kokufa isilwane ukuxubana sodium ion eziqukethwe sauce, okubangela imisipha ukwenza inkontileka.

ukutholakala ngephutha

Amaqiniso ethakazelisayo chemistry ngokuvamile ezihlobene zatholwa ngengozi. Ngakho, ngo-1903 u-Edouard Benedictus, wemithi odumile isiFulentshi, yasungulwa ingilazi ukuphepha. Usosayensi ngephutha lawisa umfuma, okuyinto yagcwala nitrocellulose. Waqaphela olwaludiliziwe isibani, kodwa ingilazi zuka. Ngemva kudingekile ucwaningo wemithi ithole ukuthi ngale ndlela ungakwazi ukwakha ingilazi ukushaqeka-ubufakazi. Njengoba ukuphepha izibuko siqala ukuba izimoto eziye kakhulu kwanciphisa inani ukulimala ngesikhathi imoto izingozi.

inzwa Live

Amaqiniso ethakazelisayo chemistry etha mayelana nokusetshenziswa kwezilwane ukuze kuzuze ukuzwela womuntu. Kuze kube ngo-1986 izisebenzi zasemayini wathatha nabo canaries phansi. Iqiniso lokuthi lezi zinyoni ezikhathalela kakhulu amagesi emayini, ikakhulukazi i-methane ne-carbon monoxide. Ngisho lokuhlala lencane yaloku ngematfuba ekusebenta izinto emoyeni inyoni angase afe. Abavukuzi ngilalele izinyoni ukucula nokubuka impilo yakhe. Uma canary ekuboniseni inexhala noma iqala ukuba buthaka, kuba isignali yokuthi emayini kudingeka uhambe.

Le nyoni akubalwa ngingofayo kusukela elinobuthi, emoyeni opholile ngokushesha ngcono. Zifakwe amaseli ngisho ekhethekile uphawu, okuyinto zavalwa ngezibonakaliso ubuthi. Ngisho nanamuhla, akuzange kusungulwe insimbi, uzizwa ore amagesi njengoba mncane njengomuntu canary.

iraba

Kuvele iqiniso elithakazelisayo ngale-chemistry: elinye okusungulile ngephutha - zenjoloba. Charlz Gudir, i nososayensi waseMelika, wathola iresiphi iraba, okungadingi zabaseGibithe ziphela amandla ukushisa, futhi akusho abhodloze abandayo. Yena ngephutha ukufuthelana ingxube isibabule irabha, ukuyishiya phezu plate. Inqubo yokuthola iraba wabizwa ngokuthi iqine.

penicillin akuzange kusize

Elinye iqiniso elithakazelisayo ngale chemistry penicillin yasungulwa ngengozi. U-Alexander Fleming yakhohlwa test tube bacterium staph kwaphela izinsuku eziningana. Futhi lapho ngakhumbula ngakho, ngathola ukuthi leli koloni uyafa. Lonke Into yaphenduka isikhunta, okuyinto uqalile ukubhubhisa amagciwane. Kungenxa isikhunta isikhunta usosayensi lithole kuqala-antibiotic emhlabeni.

poltergeist

Amaqiniso ethakazelisayo-chemistry ongasebenza ukuphikisa umlando ezingaqondakali. Omunye kungaba ngokuvamile ukuzwa zezakhiwo ezindala ezigcwele izipoki. Futhi into siphelelwe yisikhathi nengenawo isebenze bafudumale system. Ngenxa ukuvuza carbon monoxide izimbangela ushevu izakhamuzi endlini kukhona ikhanda, kanye ukusangana sokuzwa nokubukwayo.

okhadinali Gray phakathi izitshalo

Amaqiniso ethakazelisayo izingwejeje. Chemistry ungakwazi ukuchaza ukuziphatha zezilwane nezitshalo. Ngokuhamba kwemvelo izitshalo eziningi ziye zasungula izindlela ukuzivikela ezilwaneni ezidla uhlaza. Ngokuvamile, baba secrete isitshalo ubuthi, kodwa ososayensi bathole indlela ezicashile sokuvikeleka. Ezinye izitshalo ukukhulula izinto ukuheha Abantu abahlukumeza abanye ...! Zaziziningi izilwane lokulawula inani ezidla uhlaza futhi angenze kubo kusukela ezindaweni zazo ukukhula kwezitshalo "smart". indlela okunjalo, ngisho izitshalo zethu evamile ezifana utamatisi kanye ukhukhamba. Ngokwesibonelo, isibungu babungonakala ikhukhamba leaf nokuhogela juice savela bakhangwa izinyoni.

amaprotheni abavikeli

Amaqiniso ethakazelisayo: chemistry imithi ezihambelana eduze. Phakathi ukulinga amagundane virologists wathola interferon. Lokhu amaprotheni ikhiqizwa zonke ezilwaneni ezinomgogodla. Kusukela amaseli igciwane itheleleke lwabelwe iprotheni ekhethekile - interferon. Akanawo umsebenzi elwa namagciwane, kodwa nabo amaseli enempilo futhi kubenza abazazi igciwane.

iphunga metal

Singase sicabange ukuthi uhlamvu lwemali, handrails e ezokuthutha zomphakathi, ujantshi nokunye. E. Metal nephunga. Lapha kuphela nephunga inike kungekho okusansimbi compounds okuyinto akhiwa ngenxa ukuxhumana surface metal we izinto eziphilayo, isib, umjuluko wobuntu. Ukuze umuntu abe nomuzwa wokuthi iphunga sici, udinga impela kancane reagents.

ukwakhiwa impahla

Amaqiniso ethakazelisayo izingwejeje. Amaphrotheni-chemistry izifundo muva. Sebethola iminyaka engaphezu kwezinkulungwane zezigidi 4 edlule, ngaphandle kwesizathu. Amaphrotheni kutitini tekwakha sazo zonke izinto eziphilayo, ezinye izinto eziphilayo isayensi akwaziwa. Half of the isisindo omile of iningi eziphilayo eziphilayo amaprotheni.

Amaqiniso ethakazelisayo. Chemistry soda

Ngo-1767, Dzhozefa Pristli abanesifiso ubunjalo Bubbles abaphuma ubhiya ngesikhathi ukuvutshelwa. Ngakho waqoqa igesi endishini yamanzi enambitha. Amanzi enhle futhi kuqabula. Ngakho, usosayensi wavula carbon dioxide, manje esisetshenziselwa ukukhiqiza amanzi carbonated. Ngemva kweminyaka emihlanu, wachaza indlela iyashelela bokukhiqiza igesi.

ushukela esikhundleni

Lokhu iqiniso elithakazelisayo ngale chemistry kusikisela ukuthi bathole okuningi kwesayensi enziwa cishe ngengozi. icala Enelukuluku kwaholela ekutholakaleni izakhiwo sucralose, yesimanje ushukela esikhundleni. Lesli Hyu, uprofesa waseLondon esicwaninga izakhiwo trihlorsaharoza entsha impahla, wayala nomsizi wakhe Shashikantu Phadnisu test it (test ngesiNgisi). Student, umyalo abampofu isiNgisi, ziqonda leli gama njengoba «ukunambitheka», okusho Nambithani balandela ngokushesha umyalelo. Sucralose wawumnandi kakhulu.

isithokela

Skatole - kuyinto kwakwakhe organic kwakheka amathumbu bezilwane nabantu. Kuyinto yalolu ketshezi kubangela iphunga nobuntu indle. Kodwa uma lokuhlala eliphezulu skatole has iphunga endleni, e esincane yalolu ketshezi it has a nephunga elimnandi, okusikhumbuza ukhilimu noma jasmine. Ngakho-ke skatole isetshenziswa iphunga amakha, ukudla kanye nogwayi.

Cat iodine

Kuvele iqiniso elithakazelisayo ngale-chemistry - ku ukutholakala iodine wahileleka ngokuqondile cat ezivamile. Abasizi wemithi Bernar Kurtua ngokuvamile wadla endlini yokucwaninga, futhi ngokuvamile bajoyine ikati esasithanda ahlale ehlombe yomnikazi. Ngemva kokudla ikati elilandelayo wagxuma phansi, kuyilapho nokugumbuqela isitsha ne-sulfuric acid kanye izimila zasolwandle umlotha ukumiswa e-ethanol, imi kudeskithophu. I iziphuzo babe exubile, futhi emoyeni laqala ukwenyuka onsomi umusi luhlala ku izinto zinhlayiya ezincane black-purple. Ngakho isici esisha chemical kwatholakala.