Developing a vehicle that is going to survive is really hard," says Smith. "You need really thick walls to prevent the electronics from getting crushed or wet." Orpheus is partly constructed from syntactic foam, a buoyant material composed of microscopic glass spheres set in epoxy resin.
อ่านต่อเพิ่มเติม โรงเรียนวัดเพ็ญญาติ
สาระสำคัญ สาร