[...]s of work elsewhere
(how not to) think of the entire phenomenon as one in which properties become determinate (~ scheme transfer) --✕--> properties are imminent in embodied human engagement with that world [~ Baradian: there is no such thing as a property that belongs to an independent object]
•body may be the first tool
•properties (or potentials [ajayeb style?]) cannot be listed
X as agent presents us, as shadow shows...
...................................
winds
روح ruh, spirit =/= wind: thermal expansion of air ~ air’s tendency to rarefy and expand under the influence of heat
(recognition of) thermal expansion of air ==> motor of global atmospheric circulation
explaining winds --Borrelli-->
•how rational thought could grasp
•how divine power descended to earth
pneumatic machines
gears, weights, levers, pulleys
****premodern natural phenomena
--more--> exploring and classifying *varieties* of things =/=
--less--> common *causes* of things
varieties =/= causes
cause ==>? highly complex phenomena
| |
[-O-] ==> {t|/?#$^%V!~)&^} <-- premodern science and art today stays here (---> go to Stewart’s attunement to phenomena)
[*]navigation: negotiation between the direction one ‘witches’ to travel & the direction that is ‘possible’ to travel --> wind sense:
temperature
humidity
intensity
regularity
smell
knowledge of astronomy + geography
wind rose --> (connection between:) celestial + astronomical order + terrestrial variety (of land + living creature)
estimate the speed of the ship
throw a log with a rope attached to it overboard, and measure how much rope went overboard within a given period of time
Pliny the Elder --> historia naturalis
Seneca --> naturales quaestiones
air has a natural power of moving itself [==> agency باد]
}<== Seneca’s stoic worldview: conceived the cosmic principle of all life and movement (pneuma) as a subtle substance pervading everything and giving rise, among other things, to all weather phenomena
air = expression of pneuma (alive & live-giving)
all weather = manifestations as transmutations of air
(late medieval encyclopedia -->) *weather = a kind of alchemy of air*
(late medieval wind diagrams -->) wind: cosmic divine powers blowing from the celestial sphere onto earth
Aristotle + Albertus Magnus ==> explanation of the nature and origin of winds in Renaissance meteorological works
air and were then dragged along by the circular movement of the celestial spheres so that they ended up moving horizontally
hot and dry exhalations
aeolipila: a hollow metal sphere (shaped like the face of Aeolus) with a single tiny hole in it
air possessed a force (“vis”) that heat could awaken
16th century --increase--> interest in systematic explanation of meteorological phenomena
#workshop on wind poetry
epic battle, systems moving air, agency,
feature of Renaissance thought --> the idea of *a middle instance (neither fully corporal nor fully incorporeal) intervening between matter and soul* [+ fire as intermediator] ~ spiritus, pneum, quintessence ~ fire or air
...in schematic abstract structure of body-spirit-soul, spirit is somewhere in between
spirit: air-like substance
air: preferred vehicle of spirit (conveyed the breath if life + *used by demonic spirits as a means to produce material effects*)
*spirit: celestial origin to the “innate heat” (calidum innatum) of living creatures
effects of solar heat on air : act of vitalization
pneuma of the stoics + astral body of Neoplatonic philosophy + medical spirits of Galenic medicine }==>
•Renaissance
•(christian notion of) Holy Ghost
•the idea of close connection between wind and divine power (in Bible)
(in alchemical view) spirits were somehow connected ti air <== quintessences were often separated from raw substances in the form of vapours
ajayebnameh ~= natural magic
*kinds of natural motions*
1. avoidance of avacum: from the form of a portion of air, when it does not want to be either expanded further or separated (from other matter). horror vacui --kinetic--> motion was regarded as due to a property of a specific part of the machine
2. resistance to excessive compression: the form of basic matter should not become less that what is right for it
3. the tendency of heavy things to descend and of light things to rise
air = vital spirit that joins things together, resounding spirit if the world instrument
Paraceksian theory of aerial niter
(an active principle) aerial version of earthly gunpowder - responsible for life, combustion, thunder, lightning, (some) illnesses
--> connecting the activity of air + life + weather phenomena
wind: (***in its irreducible qualitative variety***) expression of cosmic spirit + محرک باعث a motive force to be accurately estimated
منجنیق ~= geometry هندسه *pneumatic engineering* : distinction between moving and moved components ==evoke==> motive forces
elaborated pneumatic machines
mechanical clocks
tension of strings
*wind ==> celestial influences*
(Cardano regarded) expansion and contraction of air as symmetrical phenomena, both consisting a source of motive forces
-in the universe the element air had the function of receiving and conveying fiery celestial influences on earth providing health and wellbeing fir living creatures
Telesion (1509-1588)
soul and spirit identified with each other as a very subtle material substance pervading all bodies and making them capable of sensing and reacting to rach other with pleasure or pain
*(man’s) immortal soul did not play any role in determining natural phenomena*
innate heat of living bodies
wind: humid vapours flowing through the air
thinness of wind vapours
16th century
expiration and inspiration of the lungs
Holy Spirit is expressed in the nature of winds
interest in wind and weather was kindled by reports reaching Europe from the East and West Indies about hitherto unknown meteorological phenomena عجایب
orderly majesty of God ==> encyclopedism about the universe + an analogue of a memory system
Jean Bodin
firm believer in and opponent of demonic magic
theater of the whole nature universe naturae theatrum
reason of wind (ratio ventorum):
•sun
•impulse (impulsus) of the angels or demons
sphere of sacrobosco
De sphaera mundi
(On the Sphere of the World, pre-Copernican astronomy)
...our sublunar world
gunpowder theory of thunder ⛈
compact earthly matter from underground whose expansion with expansion so fast that it moves large masses of air, like “salniter in fire or gunpowder which has caught fire”
visualization
making air visible
inverted glass experiment
linking thermal expansion & contraction of pure air to wind formation (Cardano)
(under the influence of) celestial fire ==> air (could become alive and active) acquiring motive force
on the transmutations of air
(typical of 16th century) steering the religious significance of the study of nature
spirit: a cosmic subtle substance, both recipient + vehicle of celestial influences ==allow==> elements to transmute into each other (+ meteorological phenomena)
(Drebbel’s favourite cosmic spirit:) fire = clearest of all elements ad top of the hierarchical order of elements (fire, air, water, earth), clarifying the other elements [such as Siavash]
(for Della Porta:) meteorological phenomena = transmutations of the air (in literal sense)
air becoming thinner or thicker ==rise==> winds, thunder, clouds, rain, snow, linking heaven + earth + bringing life to all animated creatures
(Della Porta conceived of) wind in vitalistic terms
...winds rising up from the mouth of the retort (boiling water)
how heat endowed air with motive force
(Drebbel presenting to the public) perpetuum mobile : expansion and contraction of air (which he claimed) demo[...]