Time Travel Girl

Time Travel Girl: Mari, Waka, and the Eight Scientists (タイムトラベル少女～マリ・ワカと8人の科学者たち～, Taimu Toraberu Shōjo: Mari Waka to Hachi-nin no Kagakusha-tachi) is an educational anime television series directed by Osamu Yamasaki and produced by WAO World. The anime aired between July 9, 2016 and September 24, 2016 and was simulcast by Funimation.

Plot
Mari Hayase is a school girl whose father, Eiji, disappeared three years ago, leaving behind a pendant known as the armillary compass. One day, after coming across a peculiar book about various scientists throughout history, the armillary compass glows, sending Mari back in time. Mari, supported by her best friend Waka Mizuki and her brother Shun, travels all across time in search of her father, meeting the famous scientists who changed the way people think about electricity.