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  2. Silicone oil - Wikipedia

    en.wikipedia.org/wiki/Silicone_oil

    Silicone oil serves as an effective gun lubricant, suitable for use with the rubber, plastic, and metal components commonly found in firearms. Its high surface adhesion allows it to create a long-lasting protective film, which is beneficial for preserving guns during prolonged storage.

  3. Spirotryprostatin B - Wikipedia

    en.wikipedia.org/wiki/Spirotryprostatin_B

    Spirotryprostatin B is an indolic alkaloid found in the Aspergillus fumigatus fungus that belongs to a class of naturally occurring 2,5-diketopiperazines. Spirotryprostatin B and several other indolic alkaloids (including Spirotryprostatin A, as well as other tryprostatins and cyclotryprostatins) have been found to have anti-mitotic properties, and as such they have become of great interest as ...

  4. Spiropyran - Wikipedia

    en.wikipedia.org/wiki/Spiropyran

    A spiropyran is a 2H-pyran isomer that has the hydrogen atom at position two replaced by a second ring system linked to the carbon atom at position two of the pyran molecule in a spiro way. So there is a carbon atom which is common on both rings, the pyran ring and the replaced ring.

  5. Silicone grease - Wikipedia

    en.wikipedia.org/wiki/Silicone_grease

    Silicone grease is widely used as a temporary sealant and a lubricant for interconnecting ground glass joints, as is typically used in laboratory glassware.Although silicones are normally assumed to be chemically inert, several historically significant compounds have resulted from unintended reactions with silicones.

  6. US SEC sues Elon Musk over late disclosure of Twitter stake - AOL

    www.aol.com/news/us-sec-sues-elon-musk-232244321...

    Spiro added that the lawsuit addresses a mere "alleged administrative failure to file a single form--an offense that, even if proven, carries a nominal penalty." OTHER LAWSUITS OVER TWITTER PURCHASES

  7. Silica gel - Wikipedia

    en.wikipedia.org/wiki/Silica_gel

    Silica gel was in existence as early as the 1640s as a scientific curiosity. [5] It was used in World War I for the adsorption of vapors and gases in gas mask canisters.The synthetic route for producing silica gel was patented in 1918 by Walter A. Patrick, a chemistry professor at Johns Hopkins University.

  8. The ED 8 mm f/1.8 Fisheye Pro is available since 2014. This lens has a focussing ring and it is water and dust proof. The anti-reflective coating of the lens with 0.3 times normal focal length has 17 lenses in 15 groups. The front lens is made of extremely high refracting glass in order to allow a small construction. [1]

  9. Samyang 8mm f/3.5 Fisheye CS II - Wikipedia

    en.wikipedia.org/wiki/Samyang_8mm_f/3.5_Fisheye...

    The Samyang 8mm F3.5 UMC Fish-Eye CS II is a fisheye photographic lens using the stereographic projection [1] and is designed for crop factor APS-C DSLRs. [2] It is made in South Korea by Samyang Optics and marketed under several brand names besides Samyang, including Bower, Falcon, Polar, Pro-Optic, Rokinon, Vivitar and Walimex Pro (Walser GmbH & Co. KG).