2. PsychologyPsychology
ď‚—abroad field that
encompassesthestudy of
human thought, behavior,
development, personality,
emotion, motivation, and
more.
ď‚—includemental health
treatment, performance
enhancement, self-help,
ergonomics, and many
other areasaffecting health
and daily life.
3. ErgonomicsErgonomics
ď‚— derived from two Greek words:
ergon, meaning work, and
nomoi, meaning natural laws,
to createaword that meansthe
scienceof work and aperson’s
relationship to that work.
  it literally meansthescienceof
work.
ď‚— study work, how work isdone
and how to work better.
ď‚— theattempt to makework better
that ergonomicsbecomesso
useful. And that isalso where
making thingscomfortableand
efficient comesinto play.
4. PhysicsPhysics
ď‚—thestudy of matter,
energy, and the
interaction between
them.
ď‚—physicsisabout
asking fundamental
questionsand trying
to answer them by
observing and
experimenting.
5. Foranalysis: Relevance of Physics toForanalysis: Relevance of Physics to
PsychologyPsychology
ď‚—In Freudian psychology, displacement (German:
Verschiebung, "shift, move") is an unconscious
defense mechanism whereby the mind substitutes
either anew aim or anew object for goalsfelt in their
original form to be dangerous or unacceptable. A
term originating with Sigmund Freud, displacement
operates in the mind unconsciously, its transference
of emotions, ideas, or wishes being most often used
to allay anxiety in the face of aggressive or sexual
impulses.