Do we need alternative for mysteriously shrinking Standard kilogram?

Physicist Richard Davis of the International Bureau of Weights and Measures is bewildered at mysterious weight loss faced by a 118-year-old cylinder that is the international prototype for the metric mass. In his own words:

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The mystery is that they were all made of the same material, and many were made at the same time and kept under the same conditions, and yet the masses among them are slowly drifting apart. We don't really have a good hypothesis for it.

Reference kilo appears to have lost 50 micrograms compared with the average of dozens of copies what it weighed 118 years ago.

However, scientists don't think that 50 micrograms, which is roughly equivalent to the weight of a fingerprint, will affect the world so much and kilo will remain kilo. But, still this could have some future impact if this trend continued without an explanation for this mysterious phenomenon as it is the ultimate weight standard for the U.S. customary system, a kilogram corresponding to 2.2 pounds.

However, as a much better alternative for 21st century kilogram, scientists are looking to shift towards sphere made out of silicon-28 isotope crystal. It insures to weigh fix and involves just single atom.

Right now, Physicists are looking to find out some hypothesis behind this mystery.

Via: SpaceCowb0y