it played an important role in the war between the states this is the white wonder the element of the angel and this is how we know it this pile of salt weigh two hundred pounds approximately their mouth you will require to meet your everyday needs a single year incredible if you think of salt only for the table and cooking actually only three percent about six pounds is used on your food that's all about six pounds per person each year where then does the rest of it go it touches every part of our lives in many ways you've never thought about how then does it serve the rest supply is the growing demands of american industrial and agricultural life can perform nearly all the modern miracles in chemistry to the chemist salt is sodium chloride with ordinary chemical processing thirteen vital chemicals are obtain medicine in cosmetics in nylon in leather in plastic newspaper in ceramic glazes tobacco in photography so all else purify that water makes possible the glass from which you drink commonplace in the end yet these tiny white grains represent a fundamental necessity of our existence nature made it a bunch but making it available is something else again it takes time and skill there are three methods of obtaining this vital minerals first  evaporation it's often described as a farming operation and it begins in the spring you take salt water and directed toward great concentrating p where times when sunshine and careful controls take care of the it goes to the washing shed and further process for table use for example must be rebranded back rated in that you on time other grades after drying screening and packing actually find their way into atomic energy or here or salt plays an important part in the agricultural life of america too not only for its own essential properties but as a logical carrier for vital trace elements required daily it's the ideal medium by which to assure that farm animals get their full trace minerals regularly poultry has an unusually heavy demand for manganese and other minerals for purposes of early growth and egg production here again the necessary minerals are best introduced through salt mixed with the trace mineralized salt resulting in stronger healthier animal for cereal flour pickles jams and jellies products since poultry and livestock meet their quota of salt regularly solve for the fishery salt for the meat back in refrigeration making it possible for us to obtain fresh meat vegetables and fruit all year round salt enters into many household uses two simple time saving use rough spots on an iron disappear like magic when the iron is back and forth over dry so hard water oftentimes means for people who have to use years ago grandmother clock rain water in a barrel used it for special household purposes because it was relatively soft and so was the water she obtained from the sister but this water was hard it came from the well and that made all the differen but what happens to this song rainwater when it reaches the her it seeps through the grass or runs off into streams and rivers and in doing so picks up calcium magnesium and perhaps fire and many of the this decreases the efficiency of the boiler and must be removed or prevented when used for laundering or other washing purposes hard water develops become known as hard water curd makes washing more difficult requires more so the hardness of water varies in different regions of our country a large portion of the united states has hard water as you can see the darker areas indicating harder water again we are indebted to salt for helping us change hard water too saw in the home in the factory everywhere close at hand on the surface of the earth but it isn't so man must search find it elsewhere in some cases deep in the earth  underground you are literally surrounded by the pillars the ceiling the floor all solid salt from thick beds like this great s you can mine it as you would mine coal the but it is always clean and comfortable down here and the temperature all year round is like that of a clear october day giant pillars support the roof of the mind out area these for example are approximately eighty by one hundred feet the mining operation begins and the face of the salt wall is drilled for dynamite charges some run of the mind salt is sent directly to industrial users with no refined for other uses get must go through further processing steps some simple some complex before it is ready to be shipped to serve america in a multitude of ways for instance in winter snow is great for sledding and skiing but if workers trucks and shoppers are snow the economic laws can run into millions of dollars per minute not to mention the toll in human suffering if doctors ambulances police and fire equipment were to be immobilized with its back melting characteristics is the most effective and economical material to clear thoroughfare in this simplified demonstration its action penetrates and quickly perforated ice and snow let's see just how the soil in each of these containers is exactly the same with one exception solve has been added to this one so fine the soil furnishes an excellent some base for concrete and asphalt highways and city streets produces better harder longer lasting rural road at less cost per taxpayer dollars now you begin to understand why method and machines are constantly being improved and extended to keep pace with the constantly increasing demand for more and more of this vital com developed for salt recovery is drilling by a stretch of the imagination you might describe this hydraulic process as mining by a pipeline more than half of our total salt supply is produced by this bresh water is pumped through pipes into the well and the resulting saturated brine is then forced the creating a high quality product that finds its way to your table and into many other us the brian pumped up from the wells goes into these large settling time chemicals removed impurit the purified brine moves on into airtight evaporators called vacuum pan salt crystals form sink to the bottom of the c the rotary dryer takes the wet salts and reduces the moisture to less than one percent here are the uniform crystals for table s air in the modern research laboratory the first in history devoted to that simple substance all skilled technicians are looking to the future constantly seeking new uses of solve to benefit mankind chinese water pellets to one hundred lb bag made in hundred different kinds and great serving agriculture serving the rolling wheels of transportation the food major industries depending on the minerals no matter where you are rest assured that you can have an exactly what you want and where you saw from the solar