A video of a strange shadow line in the sky spotted from a plane has gone viral on TikTok. The unusual scene was captured by user @aliya.mary and has garnered 23.8 million views since it was ...

A plane is an imaginary flat surface running through the body. An axis is an imaginary line at right angles to the plane, about which the body rotates or spins. Plane – sagittal, as there is ...