Variable speed of light resulting in every physical quantity being normalized against its corresponding Planck unit. For that, it has been claimed that specifying the evolution of a dimensional quantity is meaningless and does not make sense. When Planck units are used and such equations of physical law are expressed in this nondimensionalized form, no dimensional physical constants such as "c", "G", "ħ", "ε", nor "k" remain, only dimensionless quantities. Short of their anthropometric unit dependence, there simply is no speed of light, gravitational constant, nor Planck's constant, remaining in mathematical expressions of physical reality to be subject to such hypothetical variation. For example,
No symbol width, mass or speed. Per the European Agreement on the Vienna Convention, an oblique bar may not be used for any sign other than signs indicating no turning. An alternative use for red bordered circles is as a Mandatory Action Symbol type B. A green circle with no slash is sometimes used to mean that something is explicitly allowed, where it might otherwise assume to be prohibited, for example at an intersection where a U-turn is permitted. No symbol The international prohibition sign (official name), also known as a no symbol, no sign, circle-backslash symbol, nay, interdictory circle or universal