0 Fat Kilogram goes on Diet!!!

Did you hear of your neighbor or your cousin getting fatter (i.e.) gaining weight? Obviously, one day or the other if we don’t control our diet, even we get fat. Now there is a good news for the guys who want to show the world as they lost their weight like me, because kilogram has gained the weight. Hurray! I reduced my weight as kilogram got dirty.
What is this? kilogram got dirty and gained weight!

That’s true, if people get dirty they clean up using water and soap. But if the kilogram gets dirty it cannot be cleaned so easily. What am I speaking? A hexagon metal which is black in color and found in rural merchant stores labelled as '1kg' is that thing can’t be cleaned with soap and water? No, I’m not referring to weights which are used for common balance in daily merchant stores. As we know, every final product has a prototype; similarly kilogram has prototypes distributed all over the globe. The International prototype kilogram (IPK) has become heavier as contaminants have built up on its surface and has gained tens of micro-grams of mass. The International prototype of the kilogram was sanctioned in 1889. Its form is a cylinder with diameter and height of about 39 mm (refer the above picture for IPK). It is made of an alloy of 90 % platinum and 10 % iridium.

“The Kilogram is the unit of mass; it is equal to the mass of the international prototype of the kilogram.”

There is a committee which is made up of eighteen individuals, each from different state under the meter convention which is called the “International Committee for weights and measures (CIPM)”and the International bureau of weights and measures is an international standards organization which helps to ensure uniformity of ‘SI weights and measures’ around the world which has its headquarters near Paris, France. The CIPM meets annually at BIPM and discuss their concerns and come to the solutions. The IPK has been conserved at the BIPM since 1889, initially with two official copies. Over the years, one official copy was replaced and four have been added. Access to the IPK and its official copies is under strict supervision of the International Committee for Weights and Measures (CIPM).

Scientists have used cutting-edge X-ray Photo-electron Spectroscopy (XPS) to analyse surfaces similar to the standard kilogram to assess the build-up of hydrocarbons — and how to remove them. Around the world, the IPK and its 40 replicas are all growing at different rates, diverging from the original. By exposing the surface to a mixture of UV and ozone, the carbonaceous contamination can be removed and bring prototype kilograms back to their ideal weight.

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