Otacon is spot-on here. In the real world in 2014, the year this game is set, DARPA managed to use Van der Waals force to allow a 100kg man carrying 20kg of equipment to climb an eight-foot tall glass wall. This is a pretty sharp prediction, considering that MGS4 came out in 2008.
@@MGrey-qb5xz This is a very good question. Normal climbing is based on gripping macrostructures like handholds, and friction between interlocking irregular surfaces usually on the milli/micrometer scale. Even our more exotic climbing methods like suction rely on generating immense pressure differentials, and still require an amount of friction to keep the vacuum device from sliding around at the edges. The trick is that these are fundamentally _repulsive_ forces rather than truly adhesive, and grip happens when enough of these bumpy structures mesh that the forces pushing outward get cancelled by interlocked forces pushing inward. Van der Waals forces are even smaller than that, and rather than interlocking geometry, it's an actual _attractive_ force between individual molecules and works even on microscale flat surfaces like smooth glass. It kicks in at almost any point of direct contact between any two molecules, and has no reliance on electrostatic qualities. But the force is extremely small, and most surfaces are so rough that even interlocking structures still don't actually touch a whole lot of each other. You need a special structure that makes contact more efficiently, simply touching the surface at millions and millions of discrete points rather than interlocking at all, and in a way that your points of contact don't all smash together and brush each other away. Geckos' toes appear scaly, but the scales are really leaves that fractal into incredibly fine hairs and again into even tinier brushes (imagine if your hairbrush was covered in string mushrooms that ended in dandelions -- that's what one plate of a gecko toe looks like at about x10000 magnification). The DARPA Z-Man experiment mimicked that; the only equipment used was a pair of handheld paddles that were flat at macro scale, but the microstructure had geometry optimized to exploit intermolecular Van der Waals forces.
Otacon is spot-on here. In the real world in 2014, the year this game is set, DARPA managed to use Van der Waals force to allow a 100kg man carrying 20kg of equipment to climb an eight-foot tall glass wall. This is a pretty sharp prediction, considering that MGS4 came out in 2008.
Nice Boat
The game has a lot of sharp predictions
i don't understand how is that different from regular climbing,what equipment is used?
@@MGrey-qb5xz This is a very good question.
Normal climbing is based on gripping macrostructures like handholds, and friction between interlocking irregular surfaces usually on the milli/micrometer scale. Even our more exotic climbing methods like suction rely on generating immense pressure differentials, and still require an amount of friction to keep the vacuum device from sliding around at the edges. The trick is that these are fundamentally _repulsive_ forces rather than truly adhesive, and grip happens when enough of these bumpy structures mesh that the forces pushing outward get cancelled by interlocked forces pushing inward.
Van der Waals forces are even smaller than that, and rather than interlocking geometry, it's an actual _attractive_ force between individual molecules and works even on microscale flat surfaces like smooth glass. It kicks in at almost any point of direct contact between any two molecules, and has no reliance on electrostatic qualities. But the force is extremely small, and most surfaces are so rough that even interlocking structures still don't actually touch a whole lot of each other. You need a special structure that makes contact more efficiently, simply touching the surface at millions and millions of discrete points rather than interlocking at all, and in a way that your points of contact don't all smash together and brush each other away. Geckos' toes appear scaly, but the scales are really leaves that fractal into incredibly fine hairs and again into even tinier brushes (imagine if your hairbrush was covered in string mushrooms that ended in dandelions -- that's what one plate of a gecko toe looks like at about x10000 magnification). The DARPA Z-Man experiment mimicked that; the only equipment used was a pair of handheld paddles that were flat at macro scale, but the microstructure had geometry optimized to exploit intermolecular Van der Waals forces.
@@Berahlen interesting i had no idea such weak forces could be used so scientifically for sports. Pretty well explained too thanks
Vamp isnt entirely magic? :o
ShadowWolfRising Nanomachines.