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#quicksand Correction: in the video I state it takes 100,000 N to escape quicksand, this was a typo, the correct number is 10,000 N. I also say Artesianal quicksand which is not a real thing, it is Atesian quicksand Quicksand is a fascinating natural phenomena, often considered dangerous, it actually can't suck you under, but it can trap people. So what is quicksand exactly? Well, It is loose sand suspended in water. There are two main ways this occurs: artisan quicksand is created by water bubbling up from the ground keeping the sand in motion, and then there is the quicksand that forms in standing water where it forms into lattice-like structure with the space in-between filled with water. This configuration of sand particles makes these quicksands a non-Newtonian fluid. When you step in it, the material rapidly changes. At rest is forms a lattice-like structure, that when stepped on collapses like a house of cards. The human body is less dense than quicksand and so will float, unable to get sucked under. That however, does not mean that quicksand isn’t dangerous. The forces created by quicksand are incredibly powerful. To pull a human limb directly out of quicksand would take some 10,000 newtons of force, which is what is required to lift a car. The issue is after acting like a liquid the sand becomes very viscous as dense sand forms around your feet. While unable to suck a human under, if someone were to become stuck, it would leave them trapped and exposed to the elements, so Escaping quicksand promptly and in the right way, is imperative. The key is to reintroduce some of the water into the sand by creating a gap between your legs and the sand by moving back and forth, then slowly and deliberately working your way out. Sources Bakalar, Nicholas (September 28, 2005). "Quicksand Science: Why It Traps, How to Escape". National Geographic News. Retrieved October 9, 2011. Engber, Daniel (23 August 2010). "Terra Infirma: The rise and fall of quicksand". Slate. Retrieved 23 August 2010. The Nature of Quicksand. (n.d.). Retrieved from https://ifb.ethz.ch/comphys/research/nature-of-quicksand.html. If you like animals and nature Please Subscribe and Like This is Backyard Expeditions. Here you can find wildlife footage and short documentaries on the natural world. Nature is full of surprises, often amazing things are happening just feet from you door. I am a biology student who was inspired by the likes of the BBC natural history unit, PBS, and animal planet as a Child. I have also long been a hobbyist photographer, filming interesting things over time. My goal is to document interesting behavior and highlight interesting species I encounter both in exotic locations, and on backyard expeditions. Underwater Worlds https://www.youtube.com/playlist?list=PLYx5OP7sbAZAJNusnxcNoHUx_sNDYT92k Journey through the Undergrowth (Macro footage of insects and Arachnids) https://www.youtube.com/playlist?list=PLYx5OP7sbAZC-4h2hpK09I-FF563TQzlc Bird Playlist https://www.youtube.com/watch?v=2ZqNM9k7OoY&list=PLYx5OP7sbAZACa11LD1wDQhn0SI2-SV1f Birding Playlist https://www.youtube.com/playlist?list=PLYx5OP7sbAZAYjq78IuGJI4wc0GXDRHTd Conservation Playlist https://www.youtube.com/playlist?list=PLYx5OP7sbAZAIUm5UCl84q2KU2nI3YLpx also Check Out my Photography Adventure Blog https://johnjacksonphoto.blogspot.com/