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  2. Sanity check - Wikipedia

    en.wikipedia.org/wiki/Sanity_check

    Dimensional analysis may be used as a sanity check of physical equations: the two sides of any equation must be commensurable or have the same dimensions. A person who has calculated the power output of a car to be 700 kJ may have omitted a factor, since the unit joules is a measure of energy, not power (energy per unit time).

  3. Sanitary engineering - Wikipedia

    en.wikipedia.org/wiki/Sanitary_engineering

    An example of a wastewater treatment system. Sanitary engineering, also known as public health engineering or wastewater engineering, is the application of engineering methods to improve sanitation of human communities, primarily by providing the removal and disposal of human waste, and in addition to the supply of safe potable water.

  4. Sanitation - Wikipedia

    en.wikipedia.org/wiki/Sanitation

    There are numerous reasons for this gap. A major one is that sanitation is rarely given political attention received by other topics despite its key importance. Sanitation is not high on the international development agenda, and projects such as those relating to water supply projects are emphasised. [56]

  5. Ecological sanitation - Wikipedia

    en.wikipedia.org/wiki/Ecological_sanitation

    The definition of ecosan has varied in the past. In 2012, a widely accepted definition of ecosan was formulated by Swedish experts: "Ecological sanitation systems are systems which allow for the safe recycling of nutrients to crop production in such a way that the use of non-renewable resources is minimized.

  6. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    In 2020, it was announced that Google's AlphaFold, a neural network based on DeepMind artificial intelligence, is capable of predicting a protein's final shape based solely on its amino-acid chain with an accuracy of around 90% on a test sample of proteins used by the team. [16]

  7. Should you throw out your black plastic cooking utensils? - AOL

    www.aol.com/lifestyle/black-plastic-spatulas...

    The study, which was published in the journal Chemosphere, detailed how high levels of these flame retardants were found in kitchen utensils, food containers, trays used to hold meat and even toys ...

  8. Environmental chemistry - Wikipedia

    en.wikipedia.org/wiki/Environmental_chemistry

    Quantitative chemical analysis is a key part of environmental chemistry, since it provides the data that frame most environmental studies. [11] Common analytical techniques used for quantitative determinations in environmental chemistry include classical wet chemistry, such as gravimetric, titrimetric and electrochemical methods. More ...

  9. McBride says she will ‘follow the rules’ of House bathroom ban

    www.aol.com/mcbride-says-she-rules-house...

    Rep.-elect Sarah McBride (D-Del.), set to be the nation’s first openly transgender member of Congress when she takes office in January, said she will comply with a policy instituted Wednesday by ...