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  2. Life on Mars - Wikipedia

    en.wikipedia.org/wiki/Life_on_Mars

    Laboratory simulations show that whenever multiple Martian environmental factors are combined, the survival rates plummet quickly, [31] however, halophile bacteria were grown in a lab in water solutions containing more than 25% of salts common on Mars, and starting in 2019 [needs update], the experiments will incorporate exposure to low ...

  3. Chernobyl disaster - Wikipedia

    en.wikipedia.org/wiki/Chernobyl_disaster

    4.2.4 Precipitation on distant high ground. 4.3 Human impact. 4.3.1 Acute radiation effects and immediate aftermath. ... which is a reaction-inhibiting neutron ...

  4. Physics - Wikipedia

    en.wikipedia.org/wiki/Physics

    For example, chemistry studies properties, structures, and reactions of matter (chemistry's focus on the molecular and atomic scale distinguishes it from physics). Structures are formed because particles exert electrical forces on each other, properties include physical characteristics of given substances, and reactions are bound by laws of ...

  5. Uranium - Wikipedia

    en.wikipedia.org/wiki/Uranium

    Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 360 tonnes of graphite, 53 tonnes of uranium oxide, and 5.5 tonnes of uranium metal, most of which was supplied by Westinghouse Lamp Plant in a makeshift production process. [37] [46]

  6. Oxygen - Wikipedia

    en.wikipedia.org/wiki/Oxygen

    The reaction for aerobic respiration is essentially the reverse of photosynthesis and is simplified as C 6 H 12 O 6 + 6 O 2 → 6 CO 2 + 6 H 2 O + 2880 kJ/mol. In vertebrates, O 2 diffuses through membranes in the lungs and into red blood cells. Hemoglobin binds O 2, changing color from bluish red to bright red [43] (CO

  7. Ethanol - Wikipedia

    en.wikipedia.org/wiki/Ethanol

    Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound with the chemical formula CH 3 CH 2 OH.It is an alcohol, with its formula also written as C 2 H 5 OH, C 2 H 6 O or EtOH, where Et stands for ethyl.

  8. National Institutes of Health - Wikipedia

    en.wikipedia.org/wiki/National_Institutes_of_Health

    1980s: Determined the complete structure of the IgE receptor that is involved in allergic reactions. 1990s: Hari Reddi's identification and purification of bone morphogenetic proteins [38] 1990s: First trial of gene therapy in humans.

  9. Atomic number - Wikipedia

    en.wikipedia.org/wiki/Atomic_number

    An explanation of the superscripts and subscripts seen in atomic number notation. Atomic number is the number of protons, and therefore also the total positive charge, in the atomic nucleus.