The phrase "all observable" is correct and usable in written English.
It can be used in contexts where you are referring to things that can be seen or measured, often in scientific or analytical discussions.
Example: "In this experiment, we will focus on all observable phenomena to draw our conclusions."
Alternatives: "all visible" or "every observable".
Doesn't seem very accurate based on, you know, ALL OBSERVABLE REALITY?
Quantum mechanics is, on this view, a theory about the possible statistical distributions of outcomes of certain measurements, and its non-classical 'logic' simply reflects the fact that not all observable phenomena can be observed simultaneously.
Within a few years, Guth and a host of others demonstrated that quantum-mechanical effects during this very early period immediately after the Big Bang could have generated primordial variations in matter and radiation that resulted, owing to gravity, in the formation of all observed cosmic structures, including our earth, our galaxy, and all observable galaxies.
In this case, all observable changes are reduced to the separation and commingling of the primitive elementary substances.
He also broke people into categories according to their sex drive: —12% of all observable couples at the motel are highly sexed.
There must be, they hold, a single, elegant, ultimate law of nature from which the rules that govern all observable phenomena can be derived.
In all observable features of foot shape and walking pattern, they are astonishingly similar to those of habitually barefoot people who live in the tropics today.
By the same token, the mechanistic view of things, which holds that all observable changes can be reduced to changes of configuration, is not merely a matter of employing a useful explanatory model; the mechanistic thesis holds, instead, that all observable changes are caused by motions of the atoms.
In quantum mechanics all observable quantities are calculated from so-called wave functions, which are complex mathematical functions that include a phase factor.
But even after stripping out all observable differences between workers, there remains an unexplained shortfall in the wages of black workers compared with white ones.
For this reason all observable acid base reactions in solution are combined in pairs, with the result that they are of the form A1 + B2 ⇄ B1 + A2.
