The Bear Grylls trick to find North

Описание к видео The Bear Grylls trick to find North

In this video, I explain the physics behind the Bear Grylls trick to find North using the shadow of a stick.

The image at the end is taken from Vincent, J. "The mathematics of sundials", Australian Senior Mathematics Journal 22 (1)

Комментарии

Информация по комментариям в разработке