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  2. How to make ‘perfect’ hard-boiled eggs: Scientists say they ...

    www.aol.com/perfect-hard-boiled-eggs-scientists...

    To test periodic cooking, the team filled a kitchen pot with tap water and heated it to the desired temperature on the stovetop. The researchers placed a food thermometer in both the hot and ...

  3. How to Tell If Eggs Are Still Good - AOL

    www.aol.com/lifestyle/tell-eggs-still-good...

    The "float test" is a quick and easy way to see if those eggs in your refrigerator are fresh enough to use. The post How to Tell If Eggs Are Still Good appeared first on Taste of Home.

  4. Find Out If Your Eggs Are Fresh Using the Handy Dandy Egg ...

    www.aol.com/eggs-fresh-using-handy-dandy...

    It's pretty simple: Place an egg in a bowl of water. If the egg sinks, it's good; if it floats, it's gone bad. Here's why: Eggshells are very porous, so as time goes by, the egg loses moisture ...

  5. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes

  6. Slingshot (water vapor distillation system) - Wikipedia

    en.wikipedia.org/wiki/Slingshot_(water_vapor...

    Slingshot is a water purification device created by inventor Dean Kamen. [1] Powered by a Stirling engine running on a combustible fuel source, it claims to be able to produce drinking water from almost any source [2] by means of vapor compression distillation, [3] requires no filters, and can operate using cow dung as fuel.

  7. Dealkalization of water - Wikipedia

    en.wikipedia.org/wiki/Dealkalization_of_water

    The reduction of blowdown by dealkalization keeps the water treatment chemicals in the boiler longer, thus minimizing the amount of chemicals required for efficient, noncorrosive operation. [2] Carbonate and bicarbonate alkalinities are decomposed by heat in boiler water releasing carbon dioxide into the steam.