Abstract: Electrorheological fluids and methods include changes in liquid-like materials that can flow like milk and subsequently form solid-like structures under applied electric fields; e.g., about 1 kV/mm. Such fluids can be used in various ways as smart suspensions, including uses in automotive, defense, and civil engineering applications. Electrorheological fluids and methods include one or more polar molecule substituted polyhedral silsesquioxanes (e.g., sulfonated polyhedral silsesquioxanes) and one or more oils (e.g., silicone oil), where the fluid can be subjected to an electric field.

Abstract: Electrorheological fluids and methods include changes in liquid-like materials that can flow like milk and subsequently form solid-like structures under applied electric fields; e.g., about 1 kV/mm. Such fluids can be used in various ways as smart suspensions, including uses in automotive, defense, and civil engineering applications. Electrorheological fluids and methods include one or more polar molecule substituted polyhedral silsesquioxanes (e.g., sulfonated polyhedral silsesquioxanes) and one or more oils (e.g., silicone oil), where the fluid can be subjected to an electric field.

Abstract: Apparatus for picking up, transporting and storing balls comprises two oposing planes separated by tension elementss which when forced over a solid, hollow or pressurized sphere simultaneously stretches the tension elements and/or compresses the sphere sufficiently to permit the sphere entry between the planes. Once the sphere is between the planes it is kept in place by the forces created by the stretched tension trying to regain their original unstretched configuration and the pinched sphere trying to regain its original configuration by trying to expand out.

Abstract: A tennis ball retrieval system comprises a removable cap which is preferably sized to fit a standard tennis ball container. The cap has an opening and an inwardly projecting flange for effectively reducing the opening to less than the diameter of a standard tennis ball. The apparatus preferably also includes tennis ball containers having a standard diameter but being capable of containing more than three tennis balls, or having grooves to allow the container to be connected to a like container with a connecting member, or both. Additionally, a strap can be included which allows the container to be carried on one's shoulder.

Abstract: A tennis ball retrieval system comprises a removable cap which is preferably sized to fit a standard tennis ball container. The cap has an opening and an inwardly projecting flange for effectively reducing the opening to less than the diameter of a standard tennis ball. The apparatus preferably also includes tennis ball containers having a standard diameter but being capable of containing more than three tennis balls, or having grooves to allow the container to be connected to a like container with a connecting member, or both. Additionally, a strap can be included which allows the container to be carried on one's shoulder.

Abstract: A tennis ball retrieval system comprises a removable cap which is preferably sized to fit a standard tennis ball container. The cap has an opening and an inwardly projecting flange for effectively reducing the opening to less than the diameter of a standard tennis ball. The apparatus preferably also includes tennis ball containers having a standard diameter but being capable of containing more than three tennis balls, or having grooves to allow the container to be connected to a like container with a connecting member, or both. Additionally, a strap can be included which allows the container to be carried on one's shoulder.

Abstract: Apparatus for framing pictures comprises a picture framing member whose appearance can be quickly and easily altered due to the internal configuration of the front and/or side elements of the framing member. In preferred embodiments, the framing member is made of a transparent material, and cavities or inwardly-opening recesses are formed in the framing member to allow the framing member to receive decorative inserts therein to alter its appearance. In other embodiments, an outwardly-opening recess is provided in the framing member. Since at least part of an insert placed in this recess is exposed, the framing member need not be made of transparent material, as the insert is visible even if the framing member is made of opaque material.