One of the best proofs that Croatian education and class books are being modernized is the class book of Technical Culture for the 7th grade of primary school titled ‘World of Technology 7U’.
Namely, this class book includes a comic in which Ankica Kovač explains hydrogen energy.
Ankica is the leader of several interesting projects in the field of hydrogen at the Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, including the first Croatian hydrogen-powered bicycle (which is also shown in the class book). The textbook has been approved according to the new curriculum and is published by the School Book.
Link to news in Croatian: http://www.energetika-net.com/vijesti/obnovljivi-izvori-energije/fsb-ova-znanstvenica-u-skolskom-udzbeniku-30922