... dissolution of salt in wa-
ter, the formation of ice by freezing, the putrefaction of wood, the cooking of food, the
Dvipsbugw
Motion Mountain – TheAdventureofPhysics available free of charge ... with the help
of a metre stick. Selected measurement results are given in
Table 8. e length of objects
is independent ofthe person measuring it, ofthe position ofthe objects and of their ... develop the concept of ‘time’ from the
comparison of motions in their surroundings. Grown-ups take as a standard the motion
Ref. 18
of the Sun and call the resulting type of time local time. From the...
... Indeed, I cannot think why
the whole bed ofthe ocean is not one solid mass of oysters, so
prolific the creatures seem. Ah, I am wondering! Strange how
the brain controls the brain! What was I saying, ... coming."
"Admirable, Watson! Admirable! You are the best of messengers."
"He wished to return with me."
THE ADVENTUREOFTHE DYING DETECTIVE
ARTHUR CONAN DOYLE (2)
I gave ... said I, "but the matter cannot be delayed. Mr.
Sherlock Holmes "
The mention of my friend's name had an extraordinary effect upon
the little man. The look of anger passed in...
... out of place."
THE ADVENTUREOFTHE DYING DETECTIVE
ARTHUR CONAN DOYLE (3)
From the hiding-place into which I had been so swiftly hustled I
heard the footfalls upon the stair, with the ... stair, with the opening and the
closing ofthe bedroom door. Then, to my surprise, there came a
long silence, broken only by the heavy breathings and gaspings of
the sick man. I could imagine ... up the gas? Ah, the shadows
begin to fall, do they? Yes, I will turn it up, that I may see
you the better." He crossed the room and the light suddenly
brightened. "Is there any other...
... definition of probability to the
20 2 The system of theories
from the standpoint ofthe general laws. Mathematically these are the specifi-
cations necessary to determine the solution ofthe equation, ... Methodology
The theme of this book is the unity of nature as manifested to us by the unity
of physics. The historical form ofthe unity ofphysics (Chap. 2) is a sequence
or system of closed theories. Following ... in
physics. There only time will be at issue, but not the unity of physics.
Here, in the first part, we begin in the present chapter with the historical
development ofthe great theories of physics, ...
... questions, the most profound of which
are the determination ofthe average neutrino mass and the source ofthe mass ofthe neutrinos
and the determination of whether neutrinos are their own ... advance the frontiers ofthe science. Of
course it is the importance ofthephysics and ofthe potential discoveries enabled by the new
capability that must justify the new investment. There ... Nuclear Physics (NP2010 Committee) as part ofthe decadal studies ofphysics and astronomy
conducted under the auspices ofthe Board on Physics and Astronomy. The principal goals ofthe
study...
... list of some ofthe important
achievements ofthe past decade illustrates this point:
• The confirmation ofthe existence of gravitational waves by the observed
shortening ofthe orbital period of ... ofthe foundations of general relativity. It is one ofthe most
accurately tested predictions in all of physics. The equality of accelerations of
different bodies in the curved spacetime ofthe ... moments ofthe universe is one ofthe great challenges of
theoretical physics. Not only is a quantum theory of gravity needed, but also a
theory ofthe universe’s quantum initial state.
• Test the limits...
... years one ofthe crowning achievements of
physics has been the isolation and identification ofthe four forces that
rule the universe. All of them can be described in the language of fields ... is
that the basic laws ofphysics and science were not known in the nine-
teenth century and the early part ofthe twentieth. Given the huge gaps in
the understanding of science at the time, ... forcing them to postulate the conservation of energy and the three
laws of thermodynamics. Thus the futile search to build perpetual mo-
tion machines helped to open up the entirely new field of thermody-
namics,...
... gives the
readers ofthe journal the sort of words and the sort of thoughts they are used to—so,
on a larger scale, the writers of an age, without thinking of it, give to the readers ofthe
age ... nations what they are; their born structure bears the trace ofthe laws
of their fathers;' but the ancient nations came into no such inheritance; they were the
descendants of people who ... the head of a family himself. The flocks
and herds ofthe children are the flocks and herds ofthe father, and the possessions of
the parent, which he holds in a representative rather than...
... list of some ofthe important
achievements ofthe past decade illustrates this point:
• The confirmation ofthe existence of gravitational waves by the observed
shortening ofthe orbital period of ... laboratory space, and offices for the observatory staff. One of the
4-kilometer arms disappears out ofthe right-hand side ofthe photo. The other is seen
stretching to the upper left. At the 2-kilometer ... moments ofthe universe is one ofthe great challenges of
theoretical physics. Not only is a quantum theory of gravity needed, but also a
theory ofthe universe’s quantum initial state.
• Test the limits...
... discredited with the discovery of isotopes
early in the twentieth century.
One ofthe major themes of twentieth-century
physics, a spectacular period in the history of physics,
has been the continuation, ... features. The first feature
is the way that they accelerate the collection of mov-
ing charged particles within the accelerator (which
is called the beam). In all accelerators, the energy of
the beam ... College
Quantum Mechanics
BUILDING BLOCKS OF MATTER
xxvii
LIST OF CONTRIBUTORS
the method of controlling the direction of motion
of the beam. All accelerators do this by the use of
magnetic fields, which exert...
... extremely strongly on the error . The reason is that for = 0 the
system of equations is linearly dependent: the sum ofthe left-hand sides
of the first two equations is twice that ofthe third equation. ... with the square ofthe interval h, the method is
said to converge with “second order.” In general, when the discretization
error is O(h
p
) then p is called the “order of convergence” ofthe method.
The ... prove, why period doubling and chaos of-
8 Third Branch ofPhysics
The reason for the rapid accumulation of errors can be understood
from the analytic solution ofthe difference equation with general...
... defines
the
volume
profile
of the
reaction. Figure
4
portrays such
profile
for the
thermolysis
of
tetramethyl-
1,2-dioxetane
in
heptane [6].
AV* is
positive
as
well
as the
reaction ... modelling
of
H-bond systems.
In
this
method,
the
time evolution
of the
system
is
followed
with
the
motion
of the
particles being determined
from
a
self-consistent solution
of the
... pores near
the
surface—
since photochemical decomposition
would
have
removed
all the
methane
from
the
atmosphere
in
less than
the
life
of the
Solar
System.
The
stability
of
high...