Plutonium-239 (239 Pu or Pu-239) is an isotope of plutonium. Plutonium-239 is the primary fissile isotope used for the production of nuclear weapons, although...

(OEIS: A018239) A prime p {\displaystyle p} that divides Euler number E 2 n {\displaystyle E_{2n}} for some 0 ≤ 2 n ≤ p − 3 {\displaystyle 0\leq 2n\leq p-3} . 19, 31...

Braathen SAFE Flight 239, also known as the Asker Accident (Norwegian: Asker-ulykken), was a controlled flight into terrain of a Fokker F28 Fellowship...

"Administration of N,N-dimethyltryptamine (DMT) in psychedelic therapeutics and research and the study of endogenous DMT". Psychopharmacology (Berl). 239 (6): 1749–1763...

absorbs neutrons to produce a radioactive isotope that decays into plutonium-239, which also is fissile. mU – Excited nuclear isomer. ( ) – Uncertainty (1σ)...

the first phase of that conflict 32 Soviet aircraft shot down for every B-239 lost, producing 36 Buffalo "aces". In December 1941, Buffalos operated by...

University (Russian: главное здание МГУ, romanized: glavnoje zdanije MGU) is a 239-metre (784 ft), 36-storey (central part) skyscraper in Moscow, Russia. It...

additive as a preservative (INS number 239). It is approved for usage for this purpose in the EU, where it is listed under E number E239, however it is not approved...

USS Whale (SS-239), a Gato-class submarine, was the second ship of the United States Navy to be named for a whale, an extremely large, aquatic mammal...

(290 N·m) at 1,800rpm compared with 196 lb·ft (266 N·m) at 2,000rpm. The Y-block was considered a major advancement over the flathead. The 239 was available...