Trisha would ask on screen “Kya Toothpaste mein namak zaroori hai?” ~ does your toothpaste contain salt ? …..why it should contain and if it is so necessary, why their earlier products did not contain ? …. Pumpkin Seeds; Brazil nuts; dry roasted soybeans; wild rice; dried Coriander; dark Chocolate; flaxseed; sunflower seeds; molasses; dates; oatmeal; black-eyed peas ………. Wonder the grouping ??
? lamp ..
The festival of lights is most
enchanting and added colour are the fireworks … more than the crackers, there
are beautiful fireworks like flower-pots, candles, wires, aerial shots which
display lots of colour. Excluding
propellants or special effects, the points of light ejected from fireworks,
termed 'stars', generally require an oxygen-producer, fuel, binder and color
producer. When the temperature of a firework is controlled, the glow of
components, such as charcoal, can be manipulated to be the desired color
(temperature) at the proper time. Metals, such as aluminum, magnesium, and
titanium, burn very brightly and are useful for increasing the temperature of
the firework.
The name magnesium originates from the
Greek. It is believed that in 1618, a
farmer at Epsom in England attempted to give his cows water from a well there.
The cows refused to drink because of the water's bitter taste, but the farmer
noticed that the water seemed to heal scratches and rashes. The substance
became known as Epsom salts and its fame spread. It was eventually recognized
as hydrated magnesium sulfate, MgSO4·7 H2O. The metal itself was first
produced by Sir Humphry Davy in England in 1808.
For long I have heard of magnesium as
differentiator in Sparklers (between Kambi mathappu and surusuru vathi) ….. Magnesium
is a chemical element with the symbol Mg and atomic number 12. It is an
alkaline earth metal and the eighth-most-abundant element in the Earth's crust
and ninth in the known universe as a whole. Magnesium is the fourth-most-common
element in the Earth as a whole (behind iron, oxygen and silicon), making up
13% of the planet's mass and a large fraction of the planet's mantle. The free metal burns with a characteristic
brilliant-white light, making it a useful ingredient in flares. The metal is
now obtained mainly by electrolysis of magnesium salts obtained from brine. In
human biology, magnesium is the eleventh-most-abundant element by mass in the
human body. Magnesium ions are sour to the taste, and in low concentrations
they help to impart a natural tartness to fresh mineral waters.
Scientists and the advice of Medical
fraternity keeps changing in tune with time and technology…… here is the latest
of how putting magnesium in tap water could help prevent hundreds of hip
fractures each year….. excerpted from a post in Daily Mail UK based on Norwegian
study which has found link between bone
strength and magnesium.
The post states that hundreds of hip
fractures could be prevented every year by adding magnesium to tap water,
according to Scientists at the Norwegian Institute of Public Health who have found drinking water with a higher
concentration of magnesium helps with hip fractures, a common injury suffered
by the ageing population of Britain (and elsewhere). Public health experts in
Norway, where drinking water varies in quality widely, found that in areas
where tap water contained magnesium both men and women suffered less hip
fractures.
Previous successes in adding different
naturally occurring materials include the addition of fluoride to drinking
water, which led to better dental hygiene across the country. However, the
study didn't find a link between calcium in drinking water and the number of
hip fractures suffered even though calcium is often associated with bone
strength.The researchers have said water companies should add the mineral
dolomite to public supplies, because it is rich in magnesium. The study, which
took place in Norway, seems to point to a link between increased intake of
magnesium and hip bone strength. It is the first time the link between
calcium/magnesium and hip fractures has been looked at this way. The researchers compiled data from three
sources; an earlier project on drinking water in Norway, the National
Population Register with inhabitants in Norway from 1994 until 2000, and the
register of hip fractures in Norway. These data sources were linked together to
create a compilation of fractures in areas with the highest and lowest areas of
calcium and magnesium. The researchers followed approximately 700,000 men and
women over seven years and registered about 5,500 hip fractures among men and
13,600 hip fractures for women in this period.
The Davy lamp is a safety lamp for use
in flammable atmospheres, consisting of a wick lamp with the flame enclosed
inside a mesh screen. This was invented
by Sir Humphry Davy in 1815.
1)
The group at the start (in blue) are some of the food items rich in magnesium.
2) The one that you saw at the start is
Davy’s lamp. Photo courtesy : http://www.rigb.org/
With regards – S. Sampathkumar
20th Feb 2014.
No comments:
Post a Comment