On December 14, 2024, in Imbituba, Brazil, @andre_natrip shared a video of a suspected quicksand area near the seashore. In the video, the author notices a warning sign labeled "danger" near a small ...

Greg Foot investigates quicksand and discovers why it's so dangerous. Practical experiments show that quicksand is a non-Newtonian fluid that can behave as both a solid and a liquid. The reasons ...