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  2. Low-background steel - Wikipedia

    en.wikipedia.org/wiki/Low-background_steel

    Low-background steel, also known as pre-war steel [1] and pre-atomic steel, [2] is any steel produced prior to the detonation of the first nuclear bombs in the 1940s and 1950s. Typically sourced from ships (either as part of regular scrapping or shipwrecks ) and other steel artifacts of this era, it is often used for modern particle detectors ...

  3. Metal detector - Wikipedia

    en.wikipedia.org/wiki/Metal_detector

    A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground, and under water. A metal detector consists of a control box, an adjustable shaft [dubious – discuss], and a variable-shaped pickup coil. When the coil nears metal, the control box ...

  4. List of metal detecting finds - Wikipedia

    en.wikipedia.org/wiki/List_of_metal_detecting_finds

    This is a list of historically significant items found by metal detecting method, only excluding magnet fishing finds, since magnet fishing is usually considered a distinctively different and separate hobby from traditional metal detecting.

  5. Associative substitution - Wikipedia

    en.wikipedia.org/wiki/Associative_substitution

    The terminology is typically applied to organometallic and coordination complexes, but resembles the Sn2 mechanism in organic chemistry. The opposite pathway is dissociative substitution, being analogous to the Sn1 pathway. Intermediate pathways exist between the pure associative and pure dissociative pathways, these are called interchange ...

  6. Two detectives under disgraced ex-NYPD chief Jeffrey Maddrey ...

    www.aol.com/two-detectives-under-disgraced-ex...

    Two women who worked for disgraced ex-NYPD honcho Jeffrey Maddrey are ensnared in the federal probe of a sex-for-overtime scandal involving another female employee, The Post has learned.

  7. Nucleophilic aromatic substitution - Wikipedia

    en.wikipedia.org/wiki/Nucleophilic_aromatic...

    By the same coin, the loss of the chloride or hydroxide is fast, because the ring regains aromaticity. Recent work indicates that, sometimes, the Meisenheimer complex is not always a true intermediate but may be the transition state of a 'frontside S N 2' process, particularly if stabilization by electron-withdrawing groups is not very strong. [2]

  8. Meghan Markle's Body Language Speaks Volumes in New Footage ...

    www.aol.com/lifestyle/meghan-markles-body...

    Meghan Markle is back and better than ever.. Not only did the Suits actress make her triumphant return to IG in a sweet video celebrating the new year, but she also announced her brand new Netflix ...

  9. “Mormon Wives ”Star Dakota Mortensen Details 'Bloody' Hair ...

    www.aol.com/mormon-wives-star-dakota-mortensen...

    Dakota Mortensen is lifting the lid on his cosmetic surgery!. On Saturday, Jan. 11, the Mormon Wives star and real estate agent shared several videos documenting his hair transplant journey ...

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