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excellence in science Nobel Prize Experiments the science highlights

EN Nobel Prize Experiments: the science highlights

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The new topic "Nobel Prize Experiments" can attract many visitor groups to these courses. The incentive of the visit is to learn about and understand the experiments and the scientific theory behind them as well as to gain a deeper insight into their scientific background. More than 145,000 customers in more than 95 countries – mainly universities, colleges, schools, private institutes, museums, and science centers – have chosen PHYWE solutions. These Physics Nobel laureates lived and worked in Göttingen Patrick Blackett, Max Born, Walther Bothe, Hans G. Dehmelt, Paul A. M. Dirac, Enrico Fermi, James Franck, M. Goeppert-Mayer, Werner Heisenberg, Gustav Hertz, Herbert Kroemer, Max von Laue, Robert A. Millikan, Wolfgang Pauli, Max Planck, Karl Siegbahn, Johannes Stark, Otto Stern, Wilhelm Wien, Eugene P. Wigner

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Page 1: EN Nobel Prize Experiments: the science highlights

excellence in science

Nobel Prize Experiments the science highlights

Page 2: EN Nobel Prize Experiments: the science highlights

excellence in science

More than 145,000 customers in more than

95 countries – mainly universities, colleges,

schools, private institutes, museums, and sci-

ence centers – have chosen PHYWE solutions.

... Göttingen is the town with the most Nobel

Prize winners in Germany.

There is no other place in Germany where one can

refer to their knowledge and scientific culture like

in this town. Otto Hahn, Lise Meitner, Max Planck,

Werner Heisenberg, and many more all worked

and lived in Göttingen and established the city’s

reputation as a university and cultural town. The

Georg-August University, Göttingen has a top-

reputation - worldwide. It is regularly in the top

50 ranking of elite universities and lures inter-

national experts in science to Göttingen to teach

and do research here.

Göttingen is where PHYWE is based. Our good

name along with the synonym for quality “made

in Germany” enabled us to become a global

market leader in education, teaching, and re-

search in natural sciences. With a long tradition

of nearly 100 years, PHYWE develops, produces,

supplies, and installs experiments, solution sys-

tems, scientific equipment, but also e-learning

systems, software, and services such as training,

installation, pre- and after-sales support, and

technical consulting.

“Imagination is more important than knowledge

– for knowledge is limited.”A. Einstein

in Germany” enabled us to become a global

market leader in education, teaching, and re-

search in natural sciences. With a long tradition

of nearly 100 years, PHYWE develops, produces,

supplies, and installs experiments, solution sys-

tems, scientific equipment, but also e-learning

systems, software, and services such as training,

installation, pre- and after-sales support, and

technical consulting.

Patrick Blackett, Max Born, Walther Bothe,

Hans G. Dehmelt, Paul A. M. Dirac, Enrico Fermi,

James Franck, M. Goeppert-Mayer, Werner

Heisenberg, Gustav Hertz, Herbert Kroemer, Max

von Laue, Robert A. Millikan, Wolfgang Pauli,

Max Planck, Karl Siegbahn, Johannes Stark, Otto

Stern, Wilhelm Wien, Eugene P. Wigner

These Physics Nobel laureates lived and

worked in Göttingen

Page 3: EN Nobel Prize Experiments: the science highlights

2 3

Otto Hahn visits PHYWE (1966)

■ 2009 Launch of new Applied Science product area with Service / Campus, PHYWE introduces new and standardised services before and after purchase. Go-live of new Internet platform

PHYWE History

■ 1913 Dr. Gotthelf Leimbach establishes the“Gesellschaft zur Erforschung des Erdinnern mbH” (association for investigation of the earth’s interior)

■ 1919 Start of the production of chemistry teaching materials

■ 1921 Start of the production of biology teaching materials

■ 1940 The name of the company is changed to “PHYWE Aktiengesellschaft”

■ 1966 Nobel Prize winner Prof. Dr. Otto Hahn visits PHYWE

■ 1982 Presentation of a worldwide unique product: Natural radioactivity is made visible in a large diffusion cloud chamber

■ 1985 Experiments in space: The astronaut W. Ockels experi- ment with magnetic balls made by PHYWE

■ 1988 Partnership is formed with “Lucas-Nülle Lehr- und Mess geräte GmbH”. Mr Lucas-Nülle is the new executive partner and driving force

■ 1997 PHYWE turns demonstration classes “upside down” (or rather from horizontal to vertical). The system “Natural Sciences on the Board” revolutionises demonstration classes in schools

■ 1998 The modular, multifunctional measuring system “Cobra3” sets new standards for computer-aided experiments

■ 2001 Extension of the Cobra3 product range with the Chem-Unit, which is an interface that is optimally adapted to chemistry teaching

■ 2002 Launch of the electricity/electronics building block system with large, magnetic teacher building blocks for the demonstration board and small, identical building blocks for the students

■ 2004 PHYWE enters into a close cooperation with the renow- ned Goettingen University and XLAB

■ 2007 Extension of the new demonstration and training centre. Development of the modern classroom

■ 20099 LLaunch off new Applied Science product area with Service

■ 2008 Cobra4 – the new, modular interface system – is presented to the public for the first time at the education trade fair “didacta”

Page 4: EN Nobel Prize Experiments: the science highlights

excellence in science

Fundamental Discoveries of Nobel Prize Winners -

What they discovered and how they affect our lives

the importance of the discoveries of Nobel

laureates for the sciences and our lives.

The new topic “Nobel Prize Experiments” can

attract many visitor groups to these courses.

The incentive of the visit is to learn about and

understand the experiments and the scientific

theory behind them as well as to gain a deeper

insight into their scientific background.

Nobel Prize winners have revolutionized science

in the last 100 years. Discoveries such as x-rays or

quantum mechanics and their applications have

changed our lives fundamentally and contributed

to the prosperity of society. They will help to mas-

ter the challenges of the 21st Century.

Science centers are now offered the chance to

inform their visitors through lab courses about

Page 5: EN Nobel Prize Experiments: the science highlights

4 5

A new dimension of experimentation in

science centers!

Science centers become informal classrooms

which allow visitors to get involved with the

fundamental issues of science and modern tech-

nology as active participants by using hands-on

experiments.

PHYWE offers science centers more than 20 Nobel

Prize experiments, didactically adapted and well-

thought-out, to work with and be understood.

A new dimension of experimentation in

science centers!

ch-

on

Nobel

d well-

tood.

Page 6: EN Nobel Prize Experiments: the science highlights

excellence in science

1925 – James Franck, Gustav Hertz

1927 – Arthur H. Compton

1927 – C.T.R. Wilson

1929 – Louis de Broglie

1930 – Karl Landsteiner

1931 – Carl Bosch

1932 – Werner Heisenberg

1936 – Victor F. Hess, Carl D. Anderson

1943 – Otto Stern

1945 – Wolfgang Pauli

1948 – Arne Tiselius

1954 – Max Born, Walther Bothe

1971 – Dennis Gabor

1986 – Heinrich Rohrer, Gerd Binnig

2009 – Charles K. Kao

The Nobel Prize is awarded annually in the

disciplines of physics, chemistry, physiology or

medicine, literature and peace. For scientists

and researchers, it is the highest award.

PHWE supplies more than 30 Nobel Prize

awarded experiments. From Conrad Röntgen

to Max Planck or Albert Einstein. Experiment

in the footsteps of Nobel Prize winners.

1901 – Wilhelm Conrad Röntgen

1901 – Jacobus Henricus van ‘t Hoff

1902 – Hendrik A. Lorentz, Pieter Zeeman

1903 – Henri Becquerel, Pierre Curie, Marie Curie

1907 – Albert A. Michelson

1908 – Ernest Rutherford

1914 – Max von Laue

1915 – W.H. Bragg, W.L. Bragg

1918 – Max Planck

1918 – Fritz Haber

1921 – Albert Einstein

1922 – Niels Bohr

1923 – Robert A. Millikan

1924 – Manne Siegbahn

1924 – Willem Einthoven

PHYWE supplies more than

30 Nobel Prize awarded experiments

Page 7: EN Nobel Prize Experiments: the science highlights

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PHYWE made Nobel Prize experiments under-

standable. From X-ray physics to radiation

phenomena, ultrasonic experiments or quan-

tum theory. You find some of our experiments

on the next pages.

X-rays: Röntgen‘s discovery demonstrated by the PHYWE x-ray unit

Page 8: EN Nobel Prize Experiments: the science highlights

excellence in science

Related Experiments by PHYWE

Principle

Polychromatic X-radiation from a copper

anode is to be directed against a LiF monoc-

rystal so that the wavelengths can be ana-

lyzed according to Bragg. The dependency of

the characteristic K� and K� radiation on the

anode current and anode voltage are to be

determined.

What you can learn about

■ Characteristic X-ray radiation

■ Energy levels

■ The Bragg equation

■ Intensity of characteristic X-rays

The intensity of characteristic X-rays as a function of the anode current and anode voltage (P2540400)

Nobel Prize in Physics 1901

Wilhelm Conrad Röntgen

“In recognition of the extraordinary services he has rendered by the discovery of the remarkable rays (x-rays) often named after him”

WEB@For further informations

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TESSexpert

Page 9: EN Nobel Prize Experiments: the science highlights

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TESSexpert

Related Experiments by PHYWE

Principle

Osmosis is the movement of water molecules

through a selectively-permeable membra-

ne against a concentration gradient. It is a

colligative effect – its property depends only

on the concentration of the solute not on its

identity. In an osmosis chamber this effect

can be demonstrated. When water molecu-

les migrate through the membrane towards

the hypertonic solution – down the water

potential gradient – an osmotic pressure is

generated which can be followed observing

the rising water line in the capillary. Osmosis

is highly relevant for biologic systems as many

biological membranes are semipermeable

and the osmotic pressure inside cells ensures

their stability.

What you can learn about

■ Colligative effect

■ Osmotic pressure

■ Membrane

■ Chemical potential

Osmosis – dependence of the osmotic pressure on the concentration  (P1135700)

The Nobel Prize in Chemistry 1901

Jacobus Henricus van ‘t Hoff

“In recognition of the extraordinary services he has ren-dered by the discovery of the laws of chemical dynamics and osmotic pressure in solutions”

Page 10: EN Nobel Prize Experiments: the science highlights

excellence in science

Nobel Prize in Physics 1902

Hendrik A. Lorentz and Pieter Zeeman

Related Experiments by PHYWE

Principle

The “Zeeman effect” is the splitting up of the

spectral lines of atoms within a magnetic field.

The simplest is the splitting up of one spectral

line into three components called the “normal

Zeeman effect”. In this experiment the normal

Zeeman effect as well as the anomalous Zee-

man effect are studied using a cadmium spectral

lamp as a specimen. The cadmium lamp is sub-

mitted to different magnetic flux densities and

the splitting up of the cadmium lines (normal

Zeeman effect 643.8 nm, red light; anomalous

Zeeman effect 508,6nm, green light) is investi-

gated using a Fabry-Perot interferometer. The

evaluation of the results leads to a fairly precise

value for Bohr’s magneton.

What you can learn about

■ Bohr’s atomic model

■ Quantisation of energy levels

■ Electron spin

■ Bohr’s magneton

Zeeman effect with a CCD camera including the measurement software (P2511005)

“In recognition of the extraordinary services they have rendered by their research into the effect of magnetism upon radiation phenomena”

TESSexpert

■ Interference of electromagnetic waves

■ Fabry-Perot interferometer

Page 11: EN Nobel Prize Experiments: the science highlights

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Related Experiments by PHYWE

Principle

The half-life of a Ba-137 m daughter substance

eluted (washed) out of a Ca-137 isotope gene-

rator is measured directly and is also determi-

ned from the increase in activity after elution.

What you can learn about

■ Parent substance

■ Daughter substance

■ Rate of decay

■ Disintegration or decay constant

■ Counting rate

■ Half life

■ Disintegration product

Half-life and radioactive equilibrium (P2520101)

Nobel Prize in Physics 1903

Marie and Pierre Curie and Henri Becquerel

“In recognition of the extraordinary services they have rendered by their joint research on radiation phenomena discov-ered by Professor Henri Becquerel”

WEB@For further informations

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Page 12: EN Nobel Prize Experiments: the science highlights

excellence in science

Nobel Prize in Physics 1907

Albert A. Michelson

Related Experiments by PHYWE

Principle

In the Michelson arrangement interference

will occur by the use of 2 mirrors. The wave-

length is determined by displacing one mirror

using the micrometer screw.

What you can learn about

■ Interference

■ Wavelength

■ Refractive index

■ Velocity of light

■ Phase

■ Virtual light source

Michelson interferometer (P2220500)

“For his optical precision instruments and the spectroscopic and metrological investigations carried out with their aid”

WEB@For further informations

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TESSexpert

Page 13: EN Nobel Prize Experiments: the science highlights

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TESSexpert

Related Experiments by PHYWE

Principle

The relationship between the angle of scatte-

ring and the rate of scattering of alpha-par-

ticles by gold foil is examined with a semicon-

ductor detector. This detector has a detection

probability of 1 for alpha-particles and virtually

no zero effect, so that the number of pulses

agrees exactly with the number of alpha-par-

ticles striking the detector. In order to obtain

maximum possible counting rates, a measu-

rement geometry is used which dates back to

Chadwick. It is also possible in this case to shift

the foil and source in an axial direction (thus

deviating from Chadwick’s original apparatus),

so that the angle of scattering can be varied

over a wide range. In addition to the annular

diaphragm with gold foil, a second diaphragm

with aluminium foil is provided in order to

study the influence of the scattering material

on the scattering rate.

What you can learn about

■ Scattering

■ Angle of scattering

Rutherford experiment (P2522101)

Nobel Prize in Chemistry 1908

Ernest Rutherford

“For his investigations into the disintegration of the elements, and the chemistry of radioactive substances”

■ Impact parameter

■ Central force

■ Coulomb field

■ Coulomb forces

■ Rutherford atomic model

■ Identity of atomic number and

charge on the nucleus

Page 14: EN Nobel Prize Experiments: the science highlights

excellence in science

Nobel Prize in Physics 1914

Max von Laue

Related Experiments by PHYWE

Principle

A monocrystal is to be irradiated by a polychro-

matic X-ray beam and the resulting diffraction

patterns recorded on film and evaluated.

What you can learn about

■ Crystal lattices

■ Crystal systems

■ Crystal classes

■ Bravais lattice

■ Reciprocal lattice

■ Miller indices

■ Structure amplitude

■ Atomic form factor

■ Bragg equation

X-ray investigation of crystal structures / Laue method (P2541600)

“For his discovery of the diffraction of X-rays by crystals”

TESSexpert

Page 15: EN Nobel Prize Experiments: the science highlights

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14 15

TESSexpert

Nobel Prize in Physics 1915

W. H. Bragg, W. L. Bragg

“For their services in the analysis of crystal structure by means of X-rays”

WEB@For further informations

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Characteristic X-rays of copper (P2540100)

Related Experiments by PHYWE

Principle

Spectra of X-rays from a copper anode are to

be analyzed by means of different monocrystals

and the results plotted graphically. The ener-

gies of the characteristic lines are then to be

determined from the positions of the glancing

angles for the various orders of diffraction.

What you can learn about

■ Bremsstrahlung

■ Characteristic radiation

■ Energy levels

■ Crystal structures

■ Lattice constant

■ Absorption

■ Absorption edges

■ Interference

■ The Bragg equation

■ Order of diffraction

Page 16: EN Nobel Prize Experiments: the science highlights

excellence in science

TESSexpert

The Nobel Prize in Chemistry 1918

Fritz Haber

“For the synthesis of ammonia from its elements”

Related Experiments by PHYWE

Principle

The synthesis of ammonia from elemen-

tal nitrogen and hydrogen based on the

industrial Haber-Bosch process is shown

in this experimental set-up in a simplified

way.  This reaction was invented by Fritz

Haber and Carl Bosch using iron as catalyst.

It was the first method to convert chemically

inert dinitrogen into reactive ammonia on

large scale. Without catalyst, this reaction

is kinetically disfavored and takes place in

only very bad yields. Ammonia is for ex-

ample used as a ground chemical for the

production of fertilizer underlying the high

technical and economical relevance of the

Haber-Bosch process.

What you can learn about

■ Industrial synthesis of Ammonia

■ Catalysis

■ Le Châtelier’s principle

Ammonia preparation from the elements (Haber-Bosch process) (P1140700)

Page 17: EN Nobel Prize Experiments: the science highlights

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TESSexpert

WEB@For further informations

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Nobel Prize in Physics 1918

Max Planck

“In recognition of the services he has rendered to the advancement of physics by his quantum theory”

Related Experiments by PHYWE

Principle

X-ray spectra are to be recorded as a function

of the anode voltage. The short wavelength

limit of the bremsspectrum is to be used to

determine the agreement with the Duane-

Hunt displacement law, and to determine

Planck‘s „quantum of action“.

What you can learn about

■ X-ray tube

■ Bremsstrahlung

■ Characteristic X-ray radiation

■ Energy levels

■ Crystal structures

■ Lattice constant

■ Interference

■ The Bragg equation

Duane-Hunt displacement law and Planck‘s „quantum of action“ (P2540900)

Page 18: EN Nobel Prize Experiments: the science highlights

excellence in science

Nobel Prize in Physics 1921

Albert Einstein

“For his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect”

WEB@For further informations

click here – www.phywe.com

Related Experiments by PHYWE

Principle

A photocell is illuminated with monochro-

matic light of different wavelengths. Planck’s

quantum of action, or Planck’s constant h, is

determined from the photoelectric voltages

measured.

What you can learn about

■ External photoelectric effect

■ Work function

■ Adsorption

■ Photon energy

Planck‘s „quantum of action“ from the photoelectric effect (line separation by a diffraction grating) with

an amplifier (P2510501)

TESSexpert

Page 19: EN Nobel Prize Experiments: the science highlights

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Related Experiments by PHYWE

Principle

The X-rays emanating from three X-ray tubes,

each with a different anode material, are to be

analysed and the wavelengths of the characte-

ristic X-ray lines from each are to be determi-

ned, so that Moseley‘s Law can be verified.

What you can learn about

■ Characteristic X-ray radiation

■ Bohr’s atomic model

■ Energy levels

■ Binding energy

■ Bragg scattering

■ Moseley’s law

■ Rydberg frequency and screening constant

TESSexpert

Nobel Prize in Physics 1922

Niels Bohr

“For his services in the investigation of the structure of atoms and of the radiation emanating from them”

Characteristic X-ray lines of different anode materials /Moseley‘s law (P2541000)

Page 20: EN Nobel Prize Experiments: the science highlights

excellence in science

Nobel Prize in Physics 1923

Robert A. Millikan

Related Experiments by PHYWE

Principle

Charged oil droplets subjected to an electric

field and to gravity between the plates of a

capacitor are accelerated by application of a

voltage. The elementary charge is determined

from the velocities in the direction of gravity

and in the opposite direction.

What you can learn about

■ Electric field

■ Viscosity

■ Stokes’ law

■ Droplet method

■ Electron charge

Elementary charge and Millikan experiment (P2510100)

“For his work on the elementary charge of electricity and on the photoelectric effect”

WEB@For further informations

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TESSexpert

Page 21: EN Nobel Prize Experiments: the science highlights

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TESSexpert

WEB@For further informations

click here – www.phywe.com

Related Experiments by PHYWE

Principle

To record an electrocardiogram (ECG) bet-

ween the left leg and the right and left

arm (lead II according to Einthoven). To

relate the ECG segments to the course of

heart contraction (P wave, P-Q segment,

QRS complex, T wave).

What you can learn about

■ Electrocardiogram according to Einthoven II

■ Heart rate

■ Quiet and strained heart

■ ECG segments

■ Atria

■ Ventricles

■ AV nodes

Human electrocardiography (ECG) with Cobra4 (P4020160)

Nobelprize in Medicine 1924

Willem Einthoven

“For his discovery of the mechanism of the electrocardiogram”

Page 22: EN Nobel Prize Experiments: the science highlights

excellence in science

WEB@For further informations

click here – www.phywe.com

TESSexpert

Related Experiments by PHYWE

Principle

Electrons are accelerated in a tube filled

with mercury vapour. The excitation energy

of mercury is determined from the dis-

tance between the equidistant minima of

the electron current in a variable opposing

electric field.

What you can learn about

■ Energy quantum

■ Electron collision

■ Excitation energy

Franck-Hertz experiment with a Hg tube (P2510311)

Nobel Prize in Physics 1925

James Franck and Gustav Hertz

“For their discovery of the laws governing the impact of an electron upon an atom”

Page 23: EN Nobel Prize Experiments: the science highlights

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TESSexpert

WEB@For further informations

click here – www.phywe.com

Related Experiments by PHYWE

Principle

The energy of scattered gamma-radiation is

measured as a function of the angle of scatter.

The Compton wavelength is determined from

the measured values.

What you can learn about

■ Corpuscle

■ Scattering

■ Compton wavelength

■ g-quanta

■ De Broglie wavelength

■ Klein-Nishina formula

Compton effect with the multi-channel analyser (P2524415)

Nobel Prize in Physics 1927

Arthur H. Compton

“For the discovery of the effect named after him”

Page 24: EN Nobel Prize Experiments: the science highlights

excellence in science

TESSexpert

Nobel Prize in Physics 1927

C.T.R. Wilson

Related Experiments by PHYWE

Principle

Radioactivity is a subject in our society which

has been playing an important role through-

out politics, economy and media for many

years now. The fact that this radiation cannot

be seen or felt by the human being and that

the effects of this radiation are still not fully

explored yet, causes emotions like no other

scientific subject before. The high-performance

diffusion cloud chamber serves for making

the tracks of cosmic and terrestrial radiation

visible so that a wide range of natural radia-

tion types can be identified. Furthermore, the

diffusion cloud chamber offers the opportunity

to carry out physical experiments with the aid

of artificial radiation sources.

What you can learn about

■ �,�,�-particles

■ ��deflection

■ Ionising particles

■ Mesons

Visualisation of radioactive particles / diffusion cloud chamber (P2520400)

“For his method of making the paths of electrically charged particles visible by condensation of vapour”

■ Cosmic radiation

■ Radioactive decay

■ Decay series

■ Particle velocity

■ Lorentz force

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TESSexpert

Related Experiments by PHYWE

Principle

Fast electrons are diffracted from a polycrys-

talline layer of graphite: interference rings

appear on a fluorescent screen. The interpla-

nar spacing in graphite is determined from

the diameter of the rings and the accelerating

voltage.

What you can learn about

■ Bragg reflection

■ Debye-Scherrer method

■ Lattice planes

■ Graphite structure

■ Material waves

■ De Broglie equation

Electron diffraction (P2511300)

Nobel Prize in Physics 1929

Louis de Broglie

“For his discovery of the wave nature of electrons”

WEB@For further informations

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Page 26: EN Nobel Prize Experiments: the science highlights

excellence in science

Nobel Prize in Physics 1932

Werner Heisenberg

Related Experiments by PHYWE

Principle

The distribution of intensity in the Fraunhofer

diffraction pattern of a slit is measured. The

results are evaluated both from the wave pat-

tern view point, by comparison with Kirchhoff‘s

diffraction formula, and from the quantum

mechanics standpoint to confirm Heisenberg‘s

uncertainty principle.

What you can learn about

■ Diffraction

■ Diffraction uncertainty

■ Kirchhoff’s diffraction formula

■ Measurement accuracy

■ Uncertainty of location

■ Uncertainty of momentum

■ Wave-particle dualism

■ De Broglie relationship

Diffraction at a slit and Heisenberg‘s uncertainty principle (P2230100)

“For his work on quantum mechanics”

WEB@For further informations

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TESSexpert

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TESSexpert

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Nobel Prize in Physics 1943

Otto Stern

Related Experiments by PHYWE

Principle

A beam of potassium atoms generated in a

hot furnace travels along a specific path in

a magnetic two-wire field. Because of the

magnetic moment of the potassium atoms, the

nonhomogeneity of the field applies a force at

right angles to the direction of their motion.

The potassium atoms are thereby deflected

from their path. By measuring the density of

the beam of particles in a plane of detection

lying behind the magnetic field, it is possi-

ble to draw conclusions as to the magnitude

and direction of the magnetic moment of the

potassium atoms.

What you can learn about

■ Magnetic moment

■ Bohr magneton

■ Directional quantization

■ g-factor

■ Electron spin

■ Atomic beam

Stern-Gerlach experiment with a stepper motor and interface (P2511111)

“For his contribution to the development of the molecular ray method and the discovery of the magnetic moment of the proton”

■ Maxwellian velocity distribution

■ Two-wire field

Page 28: EN Nobel Prize Experiments: the science highlights

excellence in science

TESSexpert

The Nobel Prize in Chemistry 1948

Arne Tiselius

Related Experiments by PHYWE

Principle

Electrophoresis is a standard method in mo-

dern biochemistry. It enables molecules that

ionize to be isolated and identified by means

of the differences in their migration rates in an

electric field which results from their particular

charges and masses. The method enables ami-

no acids, peptides, proteins, nucleic acids and

glycopeptides to be investigated and physico-

chemical characterised.

What you can learn about

■ Molecular and colloid suspensions

■ Amino acids and proteins

■ Ampholytes

■ Electric field

■ Electrophoresis and electrochromatography

■ Migration rate and electrophoretic mobility

Electrophoretic mobility (P3040701)

“For his research on electrophoresis and adsorption analysis, especially for his discoveries concerning the complex nature of the serum proteins”

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TESSexpert

WEB@For further informations

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Nobel Prize in Physics 1971

Dennis Gabor

Related Experiments by PHYWE

Principle

In contrast to normal photography a hologram

can store information about the three-dimen-

sionality of an object. To capture the three-

dimensionality of an object, the film stores

not only the amplitude but also the phase of

the light rays. To achieve this, a coherent light

beam (laser light) is split into an object and

a reference beam by being passed through a

beam splitter. These beams interfere in the

plane of the holographic film. The hologram is

reconstructed with the reference beam which

was also used to record the hologram.

What you can learn about

■ Object beam

■ Reference beam

■ Real and virtual image

■ Phase holograms

■ Amplitude holograms

■ Interference

Recording and reconstruction of holograms (P2260300)

“For his invention and development of the holographic method”

■ Diffraction

■ Coherence

■ Developing of film

Page 30: EN Nobel Prize Experiments: the science highlights

excellence in science

Related Experiments by PHYWE

Principle

Approaching a very sharp metal tip to an elec-

trically conductive sample by applying a elec-

trical field leads to a current between tip and

sample without any mechanical contact. This

so-called tunneling current is used to investiga-

te the electronic topography on the sub nano-

meter scale of a fresh prepared graphite (HOPG)

surface. By scanning the tip line-by-line across

the surface graphite atoms and the hexagonal

structure are imaged.

What you can learn about

■ Tunneling effect

■ Hexagonal Structures

■ Scanning Tunneling Microscopy (STM)

■ Imaging on the sub nanometer scale

■ Piezo-electric devices

■ Local Density Of States (LDOS)

■ Constant-Height and Constant-Current-Mode

Atomic Resolution of the graphite surface by STM (scanning tunnelling microscope) (P2532000)

Nobel Prize in Physics 1986

Heinrich Rohrer and Gerd Binnig

“For their design of the scanning tunneling microscope”

WEB@For further informations

click here – www.phywe.com

TESSexpert

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TESSexpert

Nobel Prize in Physics 2009

Charles K. Kao

Related Experiments by PHYWE

Principle

The beam of a laser diode is treated in a way

that it can be coupled into a monomode fibre.

The problems related to coupling the beam into

the fibre are evaluated and verified. In con-

sequence alow frequency signal is transmitted

through the fibre. The numerical aperture of

the fibre is recorded. The transit time of light

through the fibre is measured and the velocity

of light within the fibre is determined. Finally

the measurement of the relative output power

of the diodelaser as a function of the supply

current leads to the characteristics of the dio-

delaser such as „threshold energy“ and „slope

efficiency“.

What you can learn about

■ Total reflection

■ Diode laser

■ Gaussian beam

■ Monomode and multimode fibre

■ Numerical aperture

Fibre optics (P2261000)

“For groundbreaking achievements concerning the transmission of light in fibers for optical communication”

■ Transverse and longitudinal modes

■ Transit time

■ Threshold energy

■ Slope efficiency

■ Velocity of light

Page 32: EN Nobel Prize Experiments: the science highlights

excellence in science

“Years of national and international experience,

which was gathered from numerous projects,

provide us with a level of expertise that is difficult to find elsewhere.” K. Elias

Indian Institute of Technology India

South Australian Museum Australia

Capital Normal University China

New York Museum of Science USA

Lawrence Hall at UC Berkley USA

Georg-August-Universität Göttingen Germany

Ludwig-Maximilians-Universität München Germany

Deutsches Museum München Germany

Forschungszentrum Jülich GmbH Germany

DESY Hamburg Germany

UAE University United Arab Emirates

National Technical University of Athens Greece

CERN, Genève Switzerland

Moscow Pedagogical State University Russia

Saint-Petersburg State Mining Institute Russia

Universum Science Center Bremen Germany

Nuclear Power Station

Dukovany Czech Republic

New York Hall of Science New York USA

Nuclear Research Institute of

Hungarian Academy of Sciences Hungary

Federal State Museum Mannheim Germany

Niigata Science Museum Japan

“The Large Diffusion Cloud Chamber is a high-

light of our exhibition and brings our visitors

to being astonished and staying.” Dr. Tobias

Wolff, Head of Exhibition and Research, Uni-

versum Science Center, Bremen, Germany

“Our museum’s Cloud Chamber was installed

on 1990, and since then it has been working

well. The participants (our museum visitors)

can well understand the meaning of radioac-

tive radiation phenomena.” Toshiaki Iwami,

Head of Physics and Chemistry Exhibition,

Niigata Science Museum, Japan

More references can be found at www.phywe.com

Page 33: EN Nobel Prize Experiments: the science highlights

32 33

With unique products, PHYWE has demon-

strated their excellence in the development

and production of scientific teaching materials

over the decades. Our diffusion cloud chamber,

for example, is one of these unique products. It

makes natural background radiation visible in a

particularly fascinating manner. Students and

anybody who is interested in natural sciences

can observe a natural phenomenon that is

otherwise hidden in obscurity.

WiWithth u uniniququee prprododucuctsts,, PHPHYWYWEE hahass dedemomonn-

PHYWE diffusion cloud chamber

Page 34: EN Nobel Prize Experiments: the science highlights

excellence in science

Service from A to Z –

our service, your satisfaction

The PHYWE service does not end with the deli-

very of the equipment. On the contrary - with

our after sales service, we offer you compre-

hensive support:

� Installation and commissioning

� Stockage service / instruction

� Training course for your staff

� Technical services

� Repair service

� Pick up service after the rental

Service Team

P. +49 (0) 551 604-0

F. +49 (0) 551 604-109

[email protected]

By choosing a PHYWE product, whether you

buy or rent it, you decide at the same time

for a comprehensive service. We support you

with our multi-level service concept. From

planning, through to installation and up to

our extensive after sales service. Rely on our

strengths.

Before you decide on a PHYWE product we

give you customized information, for example

product flyers, brochures, manuals or product

films. We assist you in deciding on buying or

renting the product.

Individual Service for individual needs –with our pre sales service

Th PHYWE i d t d ith th d li

Even after the purchase we are here for you –with our after sales service

Service

MedienInformation

Pre Sales Service

After Sales Service Campus

Page 35: EN Nobel Prize Experiments: the science highlights

34 35

AMERICAS

P. +49 (0) 551 604-119 F. +49 (0) 551 604-115 [email protected]

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Are you looking for a partner near your location?

Please do not hesitate to call us. We would be pleased to assign you a personal contact.

HEADQUARTERS/PRODUCTION

PHYWE Systeme GmbH & Co. KG Robert-Bosch-Breite 10 D-37079 Göttingen Germany

P. +49 (0) 551 604-0 F. +49 (0) 551 604-107 [email protected]

EASTERN EUROPE

P. +49 (0) 551 604-137 F. +49 (0) 551 604-115 [email protected]

MIDDLE EAST

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PHYWE – your global partner

AMERICAS

WESTERN EUROPEEASTERN EUROPE

AFRICA

ASIAMIDDLE EAST

HEADQUARTERS/PRODUCTIONGÖTTINGEN, GERMANY

Page 36: EN Nobel Prize Experiments: the science highlights

excellence in science

PHYWE Systeme GmbH & Co. KG Robert-Bosch-Breite 10 D-37079 Göttingen

P. +49 (0) 551 604 - 0 F. +49 (0) 551 604 - 107

[email protected] www.phywe.com

Our sales partners:

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