Ku ipaji ya 239 y'igitabo cyanjye cya laboratwari, nashushanyije igihe cya nyuma ku gihe cyo gukaraba ibikoresho byo mu kirahuri. Ayo masaha ya nyuma ya nyuma yakoreshejwe arwanya ibisigazwa bikomeye, ayo masaha yangijwe n'igerageza ryanduye—byose byabaye amateka ubwo hageragaimashini imesa ibikoresho by'ikirahure yikora.

Nakoresheje imashini, nshyira icupa ry'amazi rivanze n'ibinyabutabire by'umwimerere mu gikoni, nfunga urugi rw'icyumba, mpitamo"Gukaraba hakoreshejwe organic"porogaramu, hanyuma itangira gukanda. Imbere, amaboko azenguruka yaratangiye kubaho, amazi menshi azenguruka ubwo ecran yakurikiranaga amakuru y'igihe nyacyo: ubushyuhe bw'amazi, igihe cy'uruziga, umuvuduko w'amazi, n'uburyo ayobora. Nanyuze mu idirishya ryo kureba, narebye uko agace kose ka reagent kashongeshejwe—bishimishije cyane.

Ibyahoze bifatwaabantu batatu iminota 90gukaraba—umusozi w'amazi ya mililitiro 200—ubu byari byasukuwe neza mu buryoIgare risanzwe ry'iminota 40Ariko ubumaji ntibwahagaze ku gukaraba. Nyuma yo gukaraba, nashoboraga guhitamokumisha, igikorwa cyari kimaze igihe kinini kibangamiye isuku y'intoki. Noneho, hamwe n'itegeko rimwe,imashinibyahindutse mu buryo butagoramye bijya ku kumisha, bigatuma"Ikoreshwa mu gukaraba-gukamura-gukoresha"ukuri. Igikorwa cyose, kuva ku koza kugeza ku kuma, cyaberaga mu cyumba gifunze—nta ngaruka z'abantu, nta ngaruka zo kwandura mu gihe cyo kwimurwa, kandi nta ngaruka zo kwandura ku bakozi bo muri laboratwari.

Ubwo itsinda ry'amacupa ashyushye yasohokaga mu cyumba, ryankoze ku mutima:Iyi mashinintabwo yari isuku gusa; yariumurinzi w'irembo arwanya ikosa ryo kugerageza. Mu gusimbuza itandukaniro ry’abantu n’amabwiriza asanzwe, byahinduye uburyo bwo kongera kubyara ibintu mu buryo bufatika. Mu gushakisha iterambere rya siyansi, wenda iterambere nyaryo ritangirira hano—muri izi ngendo z’ubuziranenge zigenzurwa neza.