Bölüm Konusu
Moving on from the battery in episode 2, this time the scientists face the challenge of building an electric generator to run on natural energy.
Yorum yapmak için giriş yap
Henüz yorum yapılmadı. İlk yorumu sen yazabilirsin.
Moving on from the battery in episode 2, this time the scientists face the challenge of building an electric generator to run on natural energy.