Whatopinionsdidexpertshaveaboutmovementsandtransportationthroughouthistory?
Takealook.
LordKelvinafamousscientist1800s
Opinion:Airplaneswouldneverfly.
Washeright?No.OnDecember171903theWrightbrothersmadethefirstcontrolledflightinapoweredairplane.
LeeDeforestapioneerinradioTVand
Radar1900s
Opinion:Nopersonwouldeverreachthemoon.
Washeright?No.OnJuly201969Neil
Armstrongsteppedontothemoon.
JulesVerneSciencefictionwriterinan1870novel
Opinion:Peoplewouldbeabletotravelunderwaterinairtightships.
Washeright?Yes.Throughsubmarinesalreadyexisteditwouldbedecadesbeforetheycouldstaysubmergedforlong-distancetravel.
LeonardodaVinciartistinventor1400s
Opinion:Peoplewouldflyinamachinewithanoverheadpropeller.
Washeright?Yes.Thisartist’ssketchmadeabout1490showsahelicopter400yearsbeforeitsinvention.
A.LordKelvin B.LeeDeforest C.LeonardodaVinci D.JulesVerne
2.LeonardodaVinci’sopinionwasthat_________.
A.airplaneswouldneverfly
B.nopersonwouldeverreachthemoon
C.peoplewouldflyinamachinewithanoverheadpropeller
D.peoplewouldbeabletotravelunderwaterinairtightships
3.Howmanyexperts’opinionprovedrightaccordingtothepassage?
A.One B.Two C.Three D.Four