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Silver spoons self-sanitize due to the oligodynamic effect. The oligodynamic effect (from Greek oligos, "few", and dynamis, "force") is a biocidal effect of metals, especially heavy metals, that occurs even in low concentrations.
Agreed, brass is commonly used for its "self lubricating" properties. Kinema 09:55, 12 September 2007 (UTC) Brass appears to have been used on battleships for surfaces that handled black powder charges, supposedly because brass-to-brass contact does not create sparks (like other metals do) that could set off the powder.
Graphite. Used in air compressors, food industry, railway track joints, brass instrument valves, piano actions, open gear, ball bearings, machine-shop works, etc. It is also very common for lubricating locks, since a liquid lubricant allows particles to get stuck in the lock worsening the problem. It is often used to lubricate the internal ...
Tribology is the science and engineering of understanding friction, lubrication and wear phenomena for interacting surfaces in relative motion.It is highly interdisciplinary, drawing on many academic fields, including physics, chemistry, materials science, mathematics, biology and engineering. [1]
It is self-lubricating, a good electrical insulator, tolerant to fairly high temperatures, and has low out-gassing. It is not suitable for barrier between vacuum and atmosphere, as it is somewhat permeable for gases. Ceramics is a superior choice, however. [3] Polyethylene is usable but requires thorough out-gassing.
The ear is designed to be self-cleaning, but some people are more prone to earwax buildup due to their ear canal shape. For example, very curvy ear canals, narrow ear canals, or surgical ears are ...
Boundary lubrication is defined as the regime in which the load is carried by the surface asperities (high points) rather than by the lubricant. [7] This is the effect that makes Ultra-high-molecular-weight polyethylene "self-lubricating". Boundary film lubrication: [8] The hydrodynamic effects are negligible. The bodies come into closer ...
A lubricant, aka lube, is a liquid, made of silicone, water, or oil, used during sexual activity to reduce friction by making the genital skin feel smoother, either solo or with a partner, says ...