Popular scientific lectures

urse, and if the supposition is correct, the magnitudes of the residua with which the perc

tory ratios are brought into play, ultimately, then, if we leave out of account the accidental order of time in which the percepts are given, e

stands with respect to t

eriorly, are requisite for the production of spatial sensat

e and the same spatial measure? How do we recognise differently colored objects

figures of the same form reproduce one

ed student sees at once that his "inhibition by reason of form" and "preference by reason o

er cannot reproduce all others qualitatively different from it for the simple reason that the latter are in like manner coalesced with one an

solute empiricists will not deny, nothing remains but to modify the theory of spatial perception or to invent in its place a new principle in the manner i

result can be due to nothing but to the existence in both series of presentations of a presentation or percept which is qualitatively the same. The colors are different. Consequently, like or equal percepts must be connected with the colors which are yet independent of the

ations. The muscular apparatus of one eye is unsymmetrical. The two eyes tog

into play and the impression is altered. To recognise inverted letters as such long experience is required. The best proof of this are t

or example, an eight-pointed star constructed by successively joining in a regular octagon the first corner with the fourth, the fourth with the seventh, etc., skipping in every case two corners, assumes alternately,

g.

ct of symmetry has its cause primarily in the repetition of muscular feelings. That a repetition actually occurs here, sometimes sufficiently marked in character as to lead to the confounding of objects, is proved apart from the theory by the fact which is familiar to every one quem dii oderunt that children frequently reverse figures from the right to the left, but never from above downwards; for example, write ε i

g.

e different series of percepts mutually awaken and reproduce one another and in a certain aspect produce the appearance of s

igures we have

be. We can so select the melodies that not even two partial tones of the notes in each are common. Yet we recognise the melodies as alike. And, what

how different the melodies may be otherwise. We know and recognise

ferent. On the other hand recognition, conformably to the principles of psychology, is possible only with percepts which are the same in quality. Consequently ther

epts of a peculiar quality. And this holds true for space and form as well as for time, rhythm, pitch, the form of melodies, intensity, etc. But whence is psychology to derive all these qualities? Have no fear, they will all be found, as were the sensations of

one another. Special research on the subject, as well also as the demonstratio

DE

temperat

e,

no signification

eaning of t

n, 180, 20

organ for forw

04, 216, footnot

historical, in scien

and discoverie

he pure t

, electrical

foo

ic col

Sauveur on,

, importance of the

anic and inorganic

fic though

utation as a pr

s in, 89,

, a princi

186, 2

to repetition of sens

e, transit

gun,

ture of oil and, in Pl

economy

ghts in sc

the

ns, 17

the wo

s swimm

mechanica

lly, 2

, defin

ysis

not necessary to phys

, transparent stere

acter of rese

Jules, 49

ychical activit

guage o

for experienc

186, 187,

c optical

cing movements of r

, an inve

n Nigh

go,

he Sea

pteryx

edes,

do, Gius

of least superfi

lowing of the

telian

tle, 3

opment of,

practical

of scientific d

ractica

eights of

a,

s, the a

celestial by terres

tecedent to p

of its tr

theorie

ms,

of, in sensuous pe

n, genera

particle

icity, 10

rt,

on. Se

mnasiums, 3

tinctive kn

e economy of m

h,

, prophes

Lord, 4

. E. vo

ectrical, 1

n, 109

a hydro

civilisation

clef,

undamen

0-45, 37

r notions of,

ects of, in

J. K., 3

ven, 3

of scienc

Gallery at

n the conservation o

ations of s

on the centre of

the conservation o

le of virtual

ssages from, for l

vision,

eory of calor

y of heat,

t heat,

in heat gen

cat,

seek their plac

ting

bol for groups of

our knowl

mann,

, Mr.

lli,

a grani

and moving proje

s,

ley,

an, t

sation of fun

t seq., 293, 298,

his stereo

ention of t

Associat

ridge, 75,

Crum, 2

concepts direc

e result

compared

es, metrical

ch,

chant, science co

rfly,

es, their economic

d in the way of scientif

the islan

, Archbish

M., 361,

ctrical, 116

mal,

inducti

and Monta

ficult gam

es perpetual motio

al view of p

ynamics, 1

incipl

o,

Paul, 265

's teleg

ini,

f the intellectual

t, awakened b

90, 198 et seq., 221

, 198 et seq. Se

ramme-second

e as low as possible for e

principle o

oscillat

hod of, in

haracter of

ical, how the

a Universal

ke the forms

ns of

the Fi

, elemen

ols,

ent,

aracter of re

f thermodyna

odes of tho

into a m

his interpretation of

questions

he drawings

guage, econ

y of

losopher, a

th unwillingness

t of,

are called bu

saying

Latin introd

Jews, monothe

and Sta

ro,

ce,

of least area with

polarisat

and barbarism

nomena of, explained b

des of conception and

yron,

cters of an

e, the good and b

the only educa

instruction

ientif

tion in sc

n thermodyn

sible cy

r, Mach'

-law

a species of p

hafer

f self-induct

um, solut

acous

ensatio

s, their e

in of the na

y moving be

ctions, import and fru

nguag

tance of,

ive phys

science, 231

principle of

stract, defi

electricity

meaning of t

al thoug

cha

trical, 125 et s

n-conductors. See

deportment of the

f objects,

sectio

efraction

energy, 137 et

of weight o

n of the simple natu

definitio

ation

c definit

reduced to beat

t interv

y of mat

the dielec

, the nat

of facts,

s, 388,

scovery of minute rods in t

ctrical research

quantity of el

ion-bala

Henry, 317

es the father of

Pure Reason,

ation of the wo

tory filaments

of oi

cient and m

, chemic

rical

anic

of electri

, 244,

gth o

ius,

s, their as

ir laws are inv

rsible, Clau

rocesses,

ops,

stat,

er, of

s enclosed

n the causes

iple, 142

234

ools, 338,

y of organic nat

ds of res

not subject to

th a piano, ana

and li

n, compen

ers,

298, 3

anical conception of

on, charact

energies, conformi

laws only me

alileo's l

143 et seq.

n, 108, 19

f scientific

nd indir

ics, 19

, their resemblance

inants

rot,

constant,

e-engine,

cients, their relat

ntial l

for detecting optic

tion, 9

Fick's theo

Leyden jars

, the gist

vention, distinc

, explanat

f, 33, 44. S

ation of, by the

e tuning-

entalit

ch, Ab

ement in sc

r, on a grea

nd of a

e desc

is,

mond, 370,

ay,

undations of

in the theory

am of

s of sounds

le-loc

d in a m

in its sen

not due to its origi

ion o

isturbance

ture of physic

f the human

f physi

m of scie

f scien

nt of dyn

the actions

se of sci

age, 191

dustrial

matics,

hinery

, our first knowledg

, 186 et

on, hig

341 et

, liqu

nature,

pt,

art of, 78

the scientific achie

, on mot

tion and repulsion

y, 116

110, 11

, 127, 132

rement of, 12

of, 118, 132, 135-13

112 et s

lums,

ls,

al, 121

, 111, 1

a substance and

he conceptions of he

ork in, 1

anic

lectr

Thomson's absolut

eters, 1

tatic un

s, concepts o

dependence of t

dies,

, equations

sation

of sensatio

equatio

word

ssible future

ity in the deport

ences

metrical n

ion of, 1

ned,

blishment of the

tic,

al, 128

eption of, 164,

n electrical pheno

principl

f, in physi

principle o

mal,

Young o

of heat, 17

nment, t

metrical

, stability

or obtainin

lements of ph

itions of, in sim

f liquid,

conditio

e Sta

ord, misused for

nsonance and

ometry

e causes of

e mathematical p

ons of strings

ermann's pr

questioned b

, the w

of, as applied to

, 298

tion, logical root of

S., 3

communicat

eady,

of energy deri

of all knowledg

between tho

research, fun

nature of,

t analyse

the theory of

affecting

pose of,

symmetrical no

man, inv

s, necessary t

scription

ent of

ons of

resente

imagination

of construc

um of, 25

for obta

bodies,

e law of, 143

cats, 303

taff

mediate links

, 191,

n of electric

of Corti's fib

xplained by motions

m, 186,

sical conc

Corti, 1

heory of di

ymmetry of

quid equilibr

use of

es,

determinin

ation of the velocit

rsed into s

experiment

, the baske

ectrical,

ctric, 110

of

137, 1

rall

related

ll compare

events, 2

eptions, r?

a clear view of

orresponds t

forces of

liquids,

ment, sensat

prophesy

t, 57,

od of, for detecting optic

thought, primitive acts

rocesses of h

a,

n's pan

338, fo

hofer

t, lowered by

nel,

sch,

, not subject t

de,

suse of the

cience of

he motion of

ment of the velocity

of a perpetu

quired in free d

of inerti

l velocit

ork,

of desc

ing bod

his study of na

entific impl

s works for use in

, 187, 237, 2

es the planet

electric

ent,

ness,

igo,

oscope

otropi

, Lak

he wor

losed in a c

f, for scales of

foundations of

incipl

108,

s, 27

compariso

, in our

opism

gymnasiums, 372,

photogra

a mixture of the sam

a mixture of the same

in a mi

tions from, 9

use of ha

, 282

ot,

cathedr

discovery o

rid of the effects

o 2

a, his tela

e, drop of w

idiosyncras

ientific terms der

derived from,

y for some pro

ary wealt

-sidedness of its

e study usel

rpens the jud

t necessary to a lib

inciality and narr

s of historical

inger

aldi

344, fo

g fishe

thought, 199,

l, 222

of the conical ref

el,

ics, 3

the causes o

theory of, e

n of the ancient

ally,

onson

cal balance of,

dge, 343, 35

high si

s', develop

a projectil

ation, relation be

terial sub

conceptions of electr

onception of,

, 156, 16

the conduct

ly a motion,

equivalent

efactio

ity o

167, 1

ic, 16

ptions of

ine,

lectrical ener

al theor

s it come

es, sinkin

f ascent,

m,

e principle of energy

stereosc

Corti's fibr

mony,

vation of ene

d of thou

305, 307

ry function of the filame

t, 386

ns, on mo

eum, art

c and inorganic mat

n develop

sion,

e economy of the i

nn, L

, 26, 234

his wav

he phrase "p

361, f

ans, their beauti

ectric mac

se,

cs compared to a

n science and

n, th

gs, puzzle

our knowle

st proceed eco

ened to a pol

chanical view o

of light and

of the heights

nd the motion of a comp

ble perpetual

ork,

s works for use in

f light, 2

or detecting imperfection

n ballo

Stevinus's pri

r r?le in explan

yorni

osauru

is a theore

lism

of organic natu

ecessary to

of lif

h and impor

universal e

ry of, 22

at min

content

in common life, their clar

y, the Ch

, menta

acts reflected

lane, law

ensible,

conception and interp

d on which pearls a

economy of the, E

seq., 146 et seq., 216

f the understandi

ion, vis

s division o

a shoemake

itutes the

the truth everyw

ared to a

e knowledg

of, the saving of

mathematics, and

f matter of,

ators

rals,

lopment, conditio

s of nature com

xion of na

nce, of prop

s elements of

with the head-wave of mov

ercourse, establi

onal meas

ery and, distinct

s for the development

lings,

an ar

. J., on mat

W., 2

a,

tians, monothe

fessor von

conservation of energ

tion of en

physics,

d of thou

137

née,

e natural philosoph

ially economy of

nguages and sci

32-233

Romeo

ed in the determination of the

Greek unnecessary for the

of the origin of th

e of Pure R

pts of the unde

ime,

ootnot

r, 18

c ener

epistemological

f mechanics, 236

ht,

t of organic nature

nctiv

by economy o

rom the economy of s

eory o

s of the foundati

er,

t of the velocity

iker

sch,

299, 3

eriment

pp,

the valu

n of, the foundation o

division of

f the ear, 1

study of moral and

r abstractio

their

ing-fork

Huygens's p

of virtual velo

ntellectual activi

ellers,

shade

unit ja

e nature of, demanded by

between, and

cation

of, 191

s charac

imals

on in, 33

ethod

he atoms of t

hievements of the ei

the origin of the

at, 167,

of Mauper

ruction in,

h the Christia

international intercourse, its power,

of its lite

study of, 346,

harpen the jud

vagance of s

define

ned in the conformity

es of not always

ard

ts nature,

f, accounted for by the mutual attr

a pulley arra

9 e

, on har

al intercourse

quotation

lphabet, their s

hts of wor

, in act

ction of the pla

n jar

ion, a, 341 et

houghts stor

on instruct

hinese phil

g, 16

nd dea

ucidating how theories

Newton's vie

ent concep

r propagat

, in vi

riodicity of, explains

l veloci

es it go

ly, 48

in like circu

ss, 38

iput

ght, their s

heir asym

orce

ught, interm

n, latent h

fflux, la

, figures o

roduced in o

nd multiplicit

t by melted c

forms o

between, an

and adaptiven

excellence of the

in circumstances fo

force,

conservat

of the conical refr

Lake Mohri

ion, cere

nguage and t

team in the b

, 289, 2

hms, 19

ic, 10

f the principle

of excluded perpe

roso

an,

acustic

lanter

ers of na

f science, beli

t, a,

to the press

force o

dle, near a

bar of stee

r keys in musi

us,

ent of natur

mbraces ot

n,

t in a mi

statues of,

x,

f work with heat and the

thods, their ch

cs, econo

ction in,