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  2. Xenon-135 - Wikipedia

    en.wikipedia.org/wiki/Xenon-135

    Xenon-135 (135 Xe) is an unstable isotope of xenon with a half-life of about 9.2 hours. 135 Xe is a fission product of uranium and it is the most powerful known neutron -absorbing nuclear poison (2 million barns ; [ 1 ] up to 3 million barns [ 1 ] under reactor conditions [ 2 ] ), with a significant effect on nuclear reactor operation.

  3. List of radioactive nuclides by half-life - Wikipedia

    en.wikipedia.org/wiki/List_of_radioactive...

    Radioactive isotope table "lists ALL radioactive nuclei with a half-life greater than 1000 years", incorporated in the list above. The NUBASE2020 evaluation of nuclear physics properties F.G. Kondev et al. 2021 Chinese Phys. C 45 030001. The PDF of this article lists the half-lives of all known radioactives nuclides.

  4. Glow plug (model engine) - Wikipedia

    en.wikipedia.org/wiki/Glow_plug_(model_engine)

    The higher fully-charged voltages of lead-acid (2.0) and Li-ion (4.2) cells, if applied directly to a regular 1.5 volt glow plug, will cause it to burn out instantaneously, so either a resistor of the proper value and wattage, or a high-power germanium transistor's base/emitter junction (in a series connection with one of the plug's terminals ...

  5. Isotopes of xenon - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_xenon

    Xenon-136 is an isotope of xenon that undergoes double beta decay to barium-136 with a very long half-life of 2.11 × 10 21 years, more than 10 orders of magnitude longer than the age of the universe ((13.799 ± 0.021) × 10 9 years). It is being used in the Enriched Xenon Observatory experiment to search for neutrinoless double beta decay.

  6. Celier Xenon 4 - Wikipedia

    en.wikipedia.org/wiki/Celier_Xenon_4

    Xenon 4 Executive Top level civil model with three seats in 1-2 configuration and powered by a 135 hp (101 kW) Rotax 912 ULS-T engine. [4] Xenon 4 Geo Civil model equipped for the land survey and aerial photography roles, intended for the construction, mining and survey industries. [5] CA-22 Military model for medevac and other

  7. Components of jet engines - Wikipedia

    en.wikipedia.org/wiki/Components_of_jet_engines

    Fan air redirection is performed by devices called "blocker doors" and "cascade vanes". This is the case on many large aircraft such as the 747, C-17, KC-10, etc. If you are on an aircraft and you hear the engines increasing in power after landing, it is usually because the thrust reversers are deployed.

  8. Long-lived fission product - Wikipedia

    en.wikipedia.org/wiki/Long-lived_fission_product

    The high short-term radioactivity of spent nuclear fuel is primarily from fission products with short half-life.The radioactivity in the fission product mixture is mostly due to short-lived isotopes such as 131 I and 140 Ba, after about four months 141 Ce, 95 Zr/ 95 Nb and 89 Sr constitute the largest contributors, while after about two or three years the largest share is taken by 144 Ce/ 144 ...

  9. Boeing WC-135 Constant Phoenix - Wikipedia

    en.wikipedia.org/wiki/Boeing_WC-135_Constant_Phoenix

    The WC-135 was introduced in December 1965, replacing Boeing WB-50 aircraft in the weather-reconnaissance and air-sampling mission. [4] Ten aircraft were initially converted from C-135B transport aircraft and were placed in service with the 55th Weather Reconnaissance Squadron at McClellan Air Force Base , California , with the Military Airlift ...