Say whose invention or discovery they are: michael faraday law of universal gravity johann gregor mendel vaccines against cholera isaac newton laws of heredity louis pasteur radium john logie baird elecromagnetic induction marie curie television

do you know the wilsons? they*re a very friendly family.

определенный артикль the ставится перед именами собственными (фамилиями), обозначающими целиком всю семью. 

hello ,   i am   taini! i   want   to   find freand! i'll  tell you about  yourselfi   live   in   moscow.i   think that moscow very   nice   city.i   am a russian.but   i am   not american.i   can   draw   .but i   cannot   play   the piano.i   like to cook.i   like   cofffe .