"the secret of inventiveness is to fill the mind
and the imagination with the context of the problem and then relax and
think of something else for a change."
"...subconscious can use to work on the problem...
hand up .... a picture of what the solution may be."
solution to problems: tool complexes are one of several
a means of solving problems.
-- computer screen (TV), keyboard (typewriter), clock (analog).
principle of displacement.
tactile refers to the knowledge we ascertain from
or obtain from touching things around us.
tacit refers something (an intent or belief) that is understood without a need for explicit directions, explanations or spoken instructions.
The sense of form
"The ability to recognize patterns
of one kind or another is important in a variety of disciplines, and
may be compared with the ability of a good engineer to evaluate structural
design 'by eye'. What is needed...is a sense of form derived from an
accumulation of visual memories of how particular structures may look
in a great variety of contexts, both adverse and favorable."
"The process operates to a large extent intuitively
more on Sense of Form see here
Using all the senses
"In preindustrial circumstances much practical
knowledge may have been gained through the hands. ...Workmanship depended
on handling materials, as well as on vision
"artisans may have been thinking
with their hands."
Artists and Alchemists
"Real practical work with furnaces and stills"
Paracelsus, retained links to craft technology and
tradition of formal learning: hands and mind together in a sort
of self dialogue.
Ellul the critic of our over-reliance on automated tools.
From Alchemy to
Jacques Ellul "remarked that man had 'lost contact
with the primary element of life and environment, the basic material
out of which he makes what he makes. He
no longer knows wood or iron...."
"Zuboff comments that the operators were controlling
a complex process very skillfully using tacit knowledge that 'they
were unable to describe verbally.' They were practicing a craft skill
--even a form of alchemy-- that depend on the immediacy of sense
"today, less awareness of sense experience is involved."
"awareness is still an important part of human
experience of technology."
as a disturbance.