Revamped definitions of scientific units are on their way. In the biggest overhaul of the international system of units (SI) since its inception in 1960, a committee is set to redefine four basic ...

The kilogram, the basic unit of mass, is now defined by a quantum quantity known as the Planck constant. That value, an immutable constant of nature, is the same everywhere in space and time.

Duke University Medical Center. "New Understanding Of Basic Units Of Memory." ScienceDaily. ScienceDaily, 24 September 2007. <www.sciencedaily.com / releases / 2007 / 09 / 070919123138.htm>.

The four units would, starting in 2019, be defined by "relationships to fundamental constants, rather than abstract or arbitrary definitions" according to Nature. The problem is one of use.

Just Curious: Your everyday questions, answered What is a cell? All living things are made of cells; they are the basic unit of life. They provide structure and are the up bodies, organs and ...

A metric prefix is a numerical multiplier that is placed before a basic unit of measure to indicate a specified multiple or fraction of that unit. They range from the smallest, 'yocto' (1 ...

Aston University. "Living Model Of Basic Units Of Human Brain Created." ScienceDaily. ScienceDaily, 22 March 2009. <www.sciencedaily.com / releases / 2009 / 03 / 090317095326.htm>.