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A thimble Der Fingerhüter (Thimblemaker) from Das Ständebuch by Jost Amman, 1568. A thimble is a small pitted cup worn on the finger that protects it from being pricked or poked by a needle while sewing. The Old English word þȳmel, the ancestor of thimble, is derived from Old English þūma, the ancestor of the English word thumb. [1]
How to Make an American Quilt received mixed reviews from critics. It was a box-office success, grossing $41 million against a $10 million budget. The film was nominated for the Screen Actors Guild Award for Outstanding Performance by a Cast in a Motion Picture.
Friction, the force opposing to the relative motion, is usually idealized by means of some empirical laws such as Amonton’s First and Second laws and Coulomb's law. At the nanoscale, however, such laws may lose their validity. For instance, Amonton's second law states that friction coefficient is independent from the area of contact.
A significant amount of information about a surface's texture on the micro meter scale can be gathered through this action as vibrations resulting from friction and texture activate mechanoreceptors in the human skin. Towards this goal plates can be made to vibrate at an ultrasonic frequency which reduces the friction between the plate and skin.
Close-up view of a friction stir weld tack tool. The bulkhead and nosecone of the Orion spacecraft are joined using friction stir welding. Joint designs. Friction stir welding (FSW) is a solid-state joining process that uses a non-consumable tool to join two facing workpieces without melting the workpiece material.
Pendulum floor slip resistance tester. The ASTM E303-22 [1] (United States), BS EN 16165:2021, [2] BS EN 13036-4:2011 [3] (United Kingdom and many other European nations), AS 4663:2013 - Slip resistance of existing pedestrian surfaces, and AS 4586:2013 - Slip resistance classification of new pedestrian surface materials (Australia/New Zealand) slip resistance test standards define the pendulum ...
Friction stir processing (FSP) is a method of changing the properties of a metal through intense, localized plastic deformation. [ 2 ] : 7 [ 3 ] : 1117 This deformation is produced by forcibly inserting a non-consumable tool into the workpiece, and revolving the tool in a stirring motion as it is pushed laterally through the workpiece.
[111] [109] Felting involves applying pressure and friction to a mat of fibers, working and rubbing them together until the fibers become interlocked and tangled, forming a nonwoven textile. A liquid, such as soapy water, is usually added to lubricate the fibers, and to open up the microscopic scales on strands of wool. [ 109 ]