Most frictionless surface

He may never have imagined that his ideal could actually be achieved, most frictionless surface, but now, thanks to a group of tribologists scientists who study interacting surfaces in relative motionthe prospect of eliminating friction between two interacting surfaces has come to fruition. And there are a number interesting ways in which frictionless surfaces promise william bezek improve our daily lives.

Log in Register. Front Page. New posts. Search Everywhere Threads This forum This thread. Search titles only.

Most frictionless surface

Scientists have developed a technique for creating surfaces that can slide past each other with virtually no friction, and their findings could create new opportunities for engineering in nanotechnology and other areas. Tweet This. Friction is present on Earth anywhere there is movement, and it can affect objects in all sorts of ways. It generates heat, which is why hands warm up when people rub them together. It can also slow down objects—car brakes use friction to reduce speed—and it causes general wear and tear, which is why drivers have to replace their brake pads—and tires—every so often. In fact, the tires on the average automobile lose about one layer of atoms every time they spin one full revolution, according to Vladan Vuletic, a professor of physics at the Massachusetts Institute of Technology. Read More In Game of Drones, the battle is real. Friction between objects also can cause engineering problems on the tiniest "nano" level. Very small objects are made up of far fewer atoms—and thus have fewer atoms they can afford to lose. Nanomachines are damaged or worn down much more quickly by friction than larger things are. That's one of the great challenges in nanotechnology, the study and creation of very small things invisible to the naked eye. Nanotechnology, it's hoped, could bring about new devices that do everything from fight diseases to explore space. One of the difficulties in making progress with nanotechnology, however, is that such tiny objects may not last long, even in favorable conditions. Vuletic and his colleagues at MIT ran a simulation that involved a laser-based surface called an "optical lattice," and a second surface on an ion crystal—a grid of charged atoms. The researchers were able to move around the atoms on the crystal, creating small spaces between some of them that made the surface of the crystal capable of rubbing against another surface without causing friction.

Hellburner Well-known member.

The frictionless plane is a concept from the writings of Galileo Galilei. In his The Two New Sciences , [1] Galileo presented a formula that predicted the motion of an object moving down an inclined plane. His formula was based upon his past experimentation with free-falling bodies. Galileo understood the mechanics of the inclined plane as the combination of horizontal and vertical vectors ; the result of gravity acting upon the object, diverted by the slope of the plane. However, Galileo's equations do not contemplate friction , and therefore do not perfectly predict the results of an actual experiment.

A frictionless surface refers to a hypothetical concept where there is no resistance or friction between two objects in contact. It is a surface that allows objects to move effortlessly without any hindrance. In the real world, achieving a completely frictionless surface is practically impossible, as there will always be some degree of friction present due to various factors. However, scientists and engineers have developed materials and techniques that can significantly reduce friction, creating surfaces that come close to being frictionless. These surfaces have numerous applications in various fields, including transportation, manufacturing, and sports.

Most frictionless surface

Explanation: If no forces are acting upon the skater and he is on a frictionless surface, then that means he has no net acceleration. If an object moves with a velocity and there is no acceleration, then the velocity remains constant. A book sliding across a table slows down and stops because of the force of friction.

Alohayube

Graphite and PTFE teflon are very slippery man-made materials, but graphite is essentially because it is a lubricant. Varanasi found that small changes at those interfaces could produce big results. You are using an out of date browser. Log in Register. Ice is pretty damn slippery, due to the fact it melts as you step on it - the extra pressure lowers the freezing point Want to swim like a shark? Wow, I just happen to work in a Tribology lab as a technician. I think it would fall more like graphite, that is a lubricant, but I imagine solid helium which would be mono-atomic right? Only catch is helium is only in this state below 2. Submarines coated in the nanotechnology would have far less friction drag and would require less fuel to propel them. In his The Two New Sciences , [1] Galileo presented a formula that predicted the motion of an object moving down an inclined plane. JiveTurkey Ars Tribunus Angusticlavius. Previous Next. How one small business makes electrical engineering easy. Also not easy to get a hold of either.

Thank you for visiting nature. You are using a browser version with limited support for CSS.

Search titles only. Paint manufacturers lose up to 30 percent of their production runs when paint sticks to mixing tanks and has to be washed away with a large volume of water that becomes contaminated in the process. The team publishes its findings Thursday in the journal Science. Human cartiledge? Vuletic and his colleagues at MIT ran a simulation that involved a laser-based surface called an "optical lattice," and a second surface on an ion crystal—a grid of charged atoms. If you can interrupt this attachment process, you can stop the biofilm from forming. View Larger Image. Then there's stiction. I'm more likely to bust my ass on wet ice as opposed to wet concrete. What are your thoughts on completely frictionless surfaces? However, Galileo's equations do not contemplate friction , and therefore do not perfectly predict the results of an actual experiment. Only catch is helium is only in this state below 2.