IptekInovator 293To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoIptek17.11.201717 November 2017Fokus Inovator edisi ini: Alga sebagai bahan bakar masa depan, kandang gajah modern di kebun binatang Zurich dan beragam keunikan pulau Helgoland di Jerman https://p.dw.com/p/2nmx9Iklan