Khaub thuas hluav taws: ib tug xov tooj ntawm txoj kev ua surprise qhua

Muaj tseeb txhua leej txhua tus pom nyob rau hauv ib tug yeeb yam los yog circus neeg kom cov nplaim taws nyob rau hauv nws caj npab, thiab ces juggle los yog txais lawv. Thiab yog hais tias tus zaj duab xis tshwj xeeb los yuav tau tsim nrog kev pab los ntawm lub computer graphics, cov circus, nws zoo nkaus li ib tug txuj ci tseem ceeb. Nyob rau hauv qhov tseeb, lub phenomenon ntawm tej no yog nej ib tug scientific piav thiab chemists tau raug hu ua "khaub thuas hluav taws". Yog hais tias qhov kev kawm, koj muaj peev xwm surprise qhov pom ntawm cov qhua ntawm lub Festival, ua rau nws lawv tus kheej.

Txhais nyob rau hauv cov nqe lus ntawm

Nyob rau hauv neobzhigayuschim nplaim Science News for KIDS yuav ib cov saw tshuaj tiv thaiv ntawm oxidation, uas luminescence yog cai. Yog li ntawd, yog hais tias koj ua raws li cov lus uas siv, txias hluav taws nplaim taws tsis yog. Nws yog siv los tsim heev spectacular tshwj xeeb los thiab ib co ntawm ntau yam foob pob hluav taws. Muab txias nplaim taws uas muaj peev xwm ntawm ib tug xov tooj ntawm esters thiab acids, ob qho tib si organic thiab inorganic. Feem ntau cov siv ethyl boronic acid derivative.

Feem ntau nyob rau hauv txias hluav taws thiab kev phem "blende" nyob rau hauv uas lub combustion txheej txheem nws tus kheej tsis tuaj kawm ntawv. Nws yog feem ntau yog siv tsis yog rau tricks, thiab tsim qauv hom phiaj.

Qhov zoo tshaj txoj kev uas yuav ua mob khaub thuas hluav taws nyob rau hauv tsev

Yog hais tias peb xav txog cov feem ntau zoo-paub xaiv los ua ib tug nplaim taws uas tsis hlawv, nws yuav tsum tau heev pheej yig khoom xyaw rau nws. Siv cawv diav (kev kho mob los yog reagent qib siv rau kev tsom xam). Nws yog tov nrog rau ib tug sib npaug zos volume ntawm boric acid hmoov. Nws zoo li haus dej haus cawv, koj yuav tau nyob tej chaw muag tshuaj. Cov tshuaj twb dripped nco concentrated muaj zog acid - hydrochloric acid los yog sulfuric acid. Rau cov uninitiated: qhov no yog poured mus rau hauv lub roj teeb, li ntawd, yuav tau nws tsis yog ib qho teeb meem. Ib daim ntawm phaj nrog lub workpiece yog rhuab. Sai thiab kev ruaj ntseg txoj kev uas yuav ua li no rau ib tug txheej thaum ub cov dej da dej. Thaum lub sib tov yuav noticeably sov, tiam sis tsis kub, nws yog tau mus ua hauj lwm rau ua kom pom tseeb.

Yog hais tias koj tsis tau ua txias hluav taws, tsis txhob muab hluav taws rau nws ncaj rau lub xibtes - tau raug ib qho mob nyob rau hauv lub qhaj ntawv ntawm kev txawj. Nws yog zoo dua rau yob lub pob xov, rau impregnate nws muaj pes tsawg leeg thiab xwb ces cig. Match (sib zog) filament yuav tsum tsis txhob kov lub pob.

Ceev faj yog paramount!

Khaub thuas hluav taws tseem tsuas yog raws li ntev raws li lub ester tsim yog hlawv reactants. Thaum nws yog tiav lawm, ethyl cawv yuav ncaj qha - tab sis nws combustion kub yog tus siab. Tsis tas li ntawd, tsis txhob hnov qab tias koom nyob rau hauv cov creation ntawm ib tug nplaim taws acid - ib tug txaus ntshai substance. Yog li ntawd kho mob yuav tsum tau coj precautionary ntsuas:

1. Nyob rau hauv tsis muaj cov ntaub ntawv tsis ua rau kom cov tshuaj ntawm acid. Firstly, tej zaum nws yuav tig tawm heev sib tov. Ob, koj yuav tau txais ib yam tshuaj hlawv, muab cov pob nyob rau hauv lub Palm.
2. Nco ntsoov tias cig ze ntawm lub glomerulus twb tsis muaj cov plaub hau los yog cov khaub ncaws npoo. Inexperienced juggler yuav tsis txais taws ntsiab lus cawv, thiab hais tias cov khoom.
3. Khaws ib tug me me ntim nyob ze uas tsis yog-combustible mus kaw thiab muab tso tawm ib tug txias hluav taws thaum nws tau txais kub. Los yog tricks nyob rau hauv lub chav ua noj lub dab ntxuav tes kom sai pov nws mus rau hauv nws.

Tom qab ib qhov nqi ntawm cov kev kawm, qhov uas koj kawm los tswj qhov kub thiab txias hloov mus xws li ib twg thiaj li tsis tau hlawv, neobzhigayuschee nplaim taws yuav tsum zes rau sab tes xis.

kev ruaj ntseg kev xaiv

Koj yuav ua tau ib tug txias hluav taws thiab lwm yam txhais tau tias, txawm hais tias nws yuav saib tsawg impressive, raws li cov nplaim taws uas nws yog me ntsis txog, tsis tab xim ib tug greenish xim. Siv ib tug me me daim ntawm paj rwb ntaub yog dov rau hauv ib lub pob thiab qhwv (thiab zoo - sewn) xov thiaj li tsis tig ib ncig. Lub ntiav tais yog lawm ua tus sau nrog tsawg-kub roj, e.g., isopropanol. Koj muaj peev xwm noj cov thiaj li hu ua roj ntais, tab sis, ces koj yuav tsum tau ceev faj: cov kua combustion kub yog sib txawv, koj muaj peev xwm khiav mus rau hauv heev tangible. Ntaub pob dipped nyob rau hauv roj wrung tawm thiab nroj cig cuag. Pob ntawm txhais tes sov so, tab sis yog tias koj yob dua nws nyob rau hauv nws ob txhais tes thiab ntawm cov ntiv tes, xav tias ib tug qab ntxiag warmth. Thiab yog hais tias koj ntub lub chaw uas muab rau tej qab zib khoom, ces koj yuav kom nws nyob rau hauv ib qho chaw. Lub tsuas muaj kev ruaj ntseg ntsuas - tsis txhob kov qhov ntxeev ntawm lub nplaim taws - nws Burns guaranteed.

luv luv nplaim taws

Nws muaj lwm yam kev kawm, yuav ua li cas yuav ua rau ib tug txias hluav taws nrog nws tus kheej txhais tes, raws li feem ntau nyob rau hauv cov txawj ua yees siv lub dexterity thiab me me tweaks. Qhov yooj yim txoj kev uas yuav siv ob qho kev xaiv:

1. Tov dej caw los yog acetone nrog dej mus rau ib tug concentration xws li hais tias cov dej yog hlawv, tiam sis tsis yog flashed. Ob txhais tes yuav lubricated los ntawm tshwj xeeb hluav taws-resistant gel (muag nyob rau hauv khw muag khoom specializing nyob rau hauv props thiab sweepstakes). Roj poured mus rau hauv lub nkoj los ntawm lub Palm ntawm koj txhais tes thiab Cov nroj cig cuag. Nruj me ntsis hais lus, nws tsis txias qhov hluav taws kub, vim hais tias cov combustion kub yog ib tug txheej txheem, thiab nws yog khaws cia yam xyuam xim nkaus xwb los ntawm lub gel. Tab sis nws zoo nkaus li impressive thiab pov.
2. Nyias daim ntaub soaked nrog vodka, thiab ib tug khub ntawm Cov nroj cig cuag thaum qhov teeb meem yog ntes rau hauv lub Palm. Txoj phuam ci ntsa iab, tab sis vim yog cov uas tsis muaj concentration ntawm dej cawv yog extinguished ua ntej lub kub yog tsim. Ib qho ntxiv kev ruaj ntseg deposit - kom nws txhais tes raws li ncaj li sai tau.

nplaim taws imitation

Nws tseem mus xav txog chimney txias hluav taws. Tom tsev, tsis tau pw tawm ib tug tiag tiag hluav taws, ib tug ntau ntawm kev sib hlub ua tau li ntawd. Nyob rau hauv lub thawv (yuav txawm duab los qhia) yog muab tso rau ib tug kiv cua kom cov cua kwj ntawm nws ntsia li. Nyob rau hauv lub ces kaum yog muab tso rau LEDs thiab kho qhov muag cov ntxaij lim dej ntawm liab, xiav thiab daj. Nyob rau txhua sab cov txheej txheem hauv daim iav. Npuag txiav mus rau hauv cov vajvoos peb sab thiab glued mus rau hauv lub thawv. Lub system no muaj xws li ib lub hwj chim qhov hluav taws xob - thiab txias nplaim tsim kev nplij siab nyob rau hauv lub chav tsev.