Mechanical four planet orrery, partly 3D printed
5:20
3d Printed Solar System Model (Orrery)
13:06
Assembling the Planetarium
16:42
Sovyetler'in Venüs'e Olan Takıntısının Nedeni Ortaya Çıktı
13:46
Astro-skeleton, July 2019.
55:37
Sonunda Beklenen Uçuş Geldi! 😎🚀
23:51
Making a Fully Functional Jet Engine from Soda can | diy Jet Engine | homemade Jet Engine
3:03
Orrery
4:36