Is this possible? Magnetic tires - Physics Forums
Mar 10, 2017 · These spherical tires would weight a LOT. Yes you get rid of the rim but you have about 3x the rubber and a bunch of heavy as hell magnets. It would take a ton of extra energy to accelerate and slow the car and it would do it MUCH slower that a traditional car.
Feasibility of spherical wheels. - Physics Forums
Jul 11, 2008 · A spherical wheel would have more mass than a regular one and therefore be tougher to accelerate, would it not?" M.I of a spherical wheel is lesser than that of a circular wheel of the same mass. Even with a decent increase in the mass in case of the spherical wheels, the M.I will turn out to be less.
Friction of spheres & cylinders - Physics Forums
Nov 15, 2006 · Hi ther, Iam also a person in the virtue of producing a conceptual design in the spherical wheel, the best way to design the car is to look at the audi rsq car. it comes in the movie i-robot and it is a conceptual design of the spherical wheel car, the car has 4 spherical wheels and exactly follows the method of mouse ball rollers for producing ...
Circular Motion Problem with a Motorcycle Driving in a Sphere
Apr 1, 2012 · He accelerates his bike to a maximum velocity in order to allow himself to be able to drive parallel to the ground inside the sphere. The sphere has an inner diameter of 8.00m, the motorcycle and rider have a mass of 250kg and his tires have a coefficient of static friction of 0.80 with the inside surface of the sphere.
Is the Metric in Spherical Coordinates Truly Flat? - Physics Forums
Jul 12, 2014 · Spherical coordinates use a different system to describe points in three-dimensional space compared to Cartesian coordinates. While Cartesian coordinates use three perpendicular axes (x, y, and z), spherical coordinates use a radial distance, inclination angle, and azimuth angle to locate a point.
Solving a Robotic Transport Challenge: Stumped on Spherical Tyres
Feb 9, 2006 · In summary: You could also use a maglev system.Have a look a furniture casters. One type is a truly spherical wheel.If you indeed mean that the tire is free to rotate in any direction, then it will have to be caged within a slightly-more-than-hemispherical holder.A steerable friction-coupled drive wheel could then be used to turn it.Just think of your mouse ball...Have a look a furniture casters.
Differences Between Real and Complex Spherical ... - Physics Forums
Feb 28, 2004 · Real Spherical Harmonics are commonly used in physics and engineering to describe the behavior of waves in a spherical coordinate system. They are particularly useful for solving problems involving spherical symmetry, such as electromagnetic radiation and quantum mechanical systems.
How Do You Calculate the Resistance of a Hollow Sphere?
Sep 21, 2009 · In conclusion, the total resistance of a spherical shell made of material with conductivity σ and inner and outer radii r1 and r2, respectively, is given by the formula R = (r2 - r1)/(4πσr1r2). This formula can be used to calculate the resistance of any hollow spherical shell, as long as the current is flowing radially outward.
Derive the divergence formula for spherical coordinates - Physics …
Sep 8, 2013 · What are spherical coordinates? Spherical coordinates are a coordinate system used to locate points in three-dimensional space. They consist of a radial distance, an azimuth angle, and an inclination angle. 2. What is the divergence formula for spherical coordinates? The divergence formula for spherical coordinates is given by:
Del operator in spherical coordinates - Physics Forums
Mar 25, 2010 · How is the Del operator used in spherical coordinates? In spherical coordinates, the Del operator is used to calculate the directional derivatives of a scalar or vector function in three-dimensional space. It can also be used to express other vector calculus operations, such as the Laplacian operator, in spherical coordinates.