This Friday will determine the existence of the kilogram unit

For over 100 years, Paris has been the home of Le Grand K - a metal block that defines the exact weight of a kilogram.

Everything from the kitchen scale to the gym dumbbells all over the world has been produced to the standards set by the iridium cylinder platinum storage block in a high security vault in the water capital. France since 1889.

According to CNN, different countries have their own "kilogram prototypes" , considered national standards and calibrated in Paris. However today scientists want to update how weight is defined.

The weight of the standard kilogram prototype fell 0.0001g, which is equivalent to the weight of a dust particle.

The reason scientists propose to change to the International System of Metrology (SI) is that over time, the prototype kilometer in Paris has lost its atoms and thus the mass has also decreased because of it " easily damaged by environmental impacts, " according to the National Physical Laboratory (NPL), which stores Kilo 18, a UK version of Le Grand K. The weight of the standard kilogram prototype fell by 0.0001g, which is equivalent to the weight of a dust particle, in the last century, meaning it will become less accurate. Le Grand K is also known as international prototype kilogram (IPK). This Friday, scientists will vote to approve the change in kilogram measurement units.

"For the measurement of a sugar bag, this loss is not an issue, but will become unacceptable for more complex science, such as measuring dosages in pharmaceutical production , " according to information. Report of the National Physics Laboratory.

The next Friday's vote at the General Conference of Measures in Versailles (France) is believed by most public opinion to pass. That means permanently redefining kilograms and retiring IPK international prototypes.

The new definition is being proposed based on the Planck constant - a constant observed in the natural world, which is stable, according to the NPL. Although the value of the kilogram will not change, the redefinition of kilograms will be constant to ensure it remains reliable and allows for more accurate mass measurement in the future.

Planck's constant describes the behavior of particles and waves on the atomic scale and depends on three units: meters, kilograms and seconds. Since seconds and meters are measured and determined by the speed of light, they can be used with a fixed Planck constant to determine a kilogram.

Planck's constant was measured using a device called Kibble balance , first developed in the NPL by late physicist Bryan Kibble.

If approved, the redefinition will take effect on World Measurement Day on May 20. The conference is organized by the International Bureau of Weights and Measures.