Question

Opisz po angielsku ... w 10 prostych zdaniach ... dowolny wynalazek, np żarówkę czy nawet koło ! .. Proszę ! ;***

Answer 1

At thebeginning of thewheelsweremanufacturedinsuch a way thatcombinedthree piecesof woodthat runsacross theboard.The resultingdiscwas cutsquarein order to obtaina circle.Wherethere waslesswood, the wheelswere madeof stone.The earliestspecimensof wood andstonearedurable,butheavy.Teethrotatethem, you had touseconsiderable force, and theirbearingsconsumedrelatively quickly.There are numerousattemptsto produce alighterwheel.To this end,forming ashieldthemcutsuchholes.The most effective methodturned out to bethe usethe spokes.Suchwheelwas inventedindependentlyin northern Europe, China andwestern Asia, andafter 2000BCItwas alreadywidespread.At that time,the wheelsusedin manyparts of the world, although some ofthe latercivilizations, such aslivingin CentralAmerica,the Aztecs,faredwithout them.

Answer 2

Lampa naftowa

The invention ofthe kerosene lampis connected withattempts,particularlyintensein the first halfof the nineteenthcentury, thereceiptof fuelefficient andcheaperthan previouslyused indifferent kindsof oilsand mixtures thereof.

In Poland,such studiesledIgnacyLukasiewicz.Usingfractional distillationobtainedat temperatures up to250 °C,a preparationdevoid oflight fractions,separatedfromhimin the apparatusof heavyhydrocarbonsand thenrefinedwith concentratedsulfuric acidand wasat the turn of1852-1853kerosene.Eliminatingthe lightestfractionpreparationmade​​safeby reducing theignition temperature.