Yr haf hwn, gall plant 4 i 11 oed ymweld â'u llyfrgell leol i gwrdd â'r Teclynwyr ac i gymryd rhan mewn Her Ddarllen yr Haf ar thema gwyddoniaeth ac arloesi.
This summer, children aged 4 to 11 can visit their local library to meet the Gadgeteers and to get involved in a science and innovation themed Summer Reading Challenge.