Key Terms and Concepts 21“6x9” b2861 The Cell Language Theory: Connecting Mind and Matterthe objects of knowledge between them. More remarkable still, they
are complementary....There is a great similarity between the concept of complementarity
that James introduced into psychology in 1890 and that Bohr introduced
into physics about four decades later. Bohr discussed his philosophy of
complementarity in public for the first time at a meeting held in Como,
Italy, in 1927 and published his first paper on complementarity in 1928
[41–44]. In 1958, Bohr summarized the concepts of supplementarity and
complementarity as follows [484]:... Within the scope of classical physics, all characteristic properties of
a given object can in principle be ascertained by a single experimental
arrangement, although in practice various arrangements are often con
venient for the study of different aspects of the phenomenon. In fact,
data obtained in such a way simply supplement each other and can be
combined into a consistent picture of the behavior of the object under
investigation. In quantum mechanics, however, evidence about atomic
objects obtained by different experimental arrangements exhibit a
novel kind of complementary relationship.
Indeed, it must be recognized that such evidence, which appears contra
dictory when combination into a single picture is attempted, exhausts all
conceivable knowledge about the object. Far from restricting our efforts
to put questions to nature in the form of experiments, the notion of
complementarity simply characterizes the answers we can receive by
such inquiry, whenever the interaction between the measuring instru-
ments and the objects forms an integral part of the phenomenon.... (my
italics).The supplementary and complementary relations defined above can
be conveniently represented as triadic relations among three entities
labeled A, B, and C. Supplementarity refers to the relation in which the
sum of a pair equals the third:Supplementarity: C = A + B. (2.12)As an example of supplementarity, Einstein’s equation in special rela
tivity, E = mc^2 , may be cited. Energy (A) and matter (B) may be viewed(2.10)(2.11)b2861_Ch-02.indd 21 17-10-2017 11:38:59 AM