Carbon fiber reinforced polymer as epoxy, but other thermoset or thermoplastic polymers, such as polyester, vinyl ester, or nylon, are sometimes used. The composite material may contain aramid (e.g. Kevlar, Twaron), ultra-high-molecular-weight polyethylene (UHMWPE), aluminium, or glass fibers in addition to carbon fibers. The properties of the final CFRP product can also be affected by the type of additives introduced to the binding matrix (resin). The most common additive is silica, but other additives such as rubber and carbon nanotubes can be used. The material is also referred to as "graphite-reinforced polymer" or "graphite fiber-reinforced polymer" ("GFRP" is less common, as it clashes with
What Are The Theosophists? What Are The Theosophists? "What Are The Theosophists?" is an editorial published in October 1879 in the theosophical magazine "The Theosophist." It was compiled by Helena Blavatsky and it was included the 2nd volume of the "Blavatsky Collected Writings." Arnold Kalnitsky wrote in his thesis that in this article "we find a rather expansive statement of... [Blavatsky's] thoughts at that moment about the status of the movement, the Theosophical Society, its objectives, and the issues it was confronting." He wrote that the article begins with a question whether the Theosophists "are they what they claim to be": researchers of the