如果地球形状像个甜甜圈，住哪最舒服？又该去哪旅游

[视频作者] 暴击的老高

[视频时长] 3:40

[视频类型] 科学科普

如果地球形状像个甜甜圈，住哪最舒服？又该去哪旅游 参考资料： http://io9.gizmodo.com/what-would-the-earth-be-like-if-it-was-the-shape-of-a-d-1515700296 https://youtu.be/WhT7XIZh7vM（What If The Earth Was a Cube?---What if）