EN Hochschule

Our range of products – future-proof and targeted Extensive system solutions for universities

excellence in science

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Tradition and innovation – that is what PHYWE stands for at all times

More than 145,000 customers in more than 95 countries – mainly universities, colleges, schools, private institutes, museums, and science centres – have chosen PHYWE solutions.

Göttingen ist one of the most famous university towns in Germany. Natural sciences have a longlasting tradition here. More than 40 Nobel Prize winners such as Otto Hahn, Lise Meitner, Max Planck, and Werner Heisenberg worked and lived in Göttingen and established the city‘s reputation as a university and cultural town.

We are a leading global developer, manufacturer, and supplier of teaching materials in the fields of physics, chemistry, biology, and applied sciences.

We continually improve our programme with constant quality control and evaluation, in which we continuously extend our product range to include new trends. This is how we meet even the highest demands and fulfil our own standards: Göttingen is where PHYWE is based. Our good enabling the best teaching and education at name along with the synonym for quality “made universities for a knowledge-based, independent, in Germany” enabled us to become a global marand progressive society of tomorrow. ket leader in education and teaching in natural sciences. With a long tradition of nearly 100 Together with our sales agency in Lüttich, which years, PHYWE develops, produces, supplies, and is mainly responsible for the francophone regions installs: in North Africa, and more than 60 International n n n n n

experiments solution systems scientific equipment e-learning systems software

and services such as: n n n n

training installation pre- and after-sales support technical consulting

Sales Partners (ISP) that are authorised by PHYWE, we can offer one-stop solutions with blanket coverage, and all of this customised to your particular, individual needs.

Together we are strong: PHYWE is a partner of Lucas-Nülle Lehr- und Messgeräte GmbH, a developer and manufacturer of technical teaching and learning systems for vocational training.

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With PHYWE, experiments are always at the focus of interest

Otto Hahn visits PHYWE (1966)

Scientific findings that the students work out themselves during practical experiments are memorised much longer and better than in the usual case. This fact is reflected in our master and bachelor courses - PHYWE’s programme for universities. The experiment is always at the focus of attention. Detailed equipment lists, precise formulation of tasks and problems, accompanying didactic literature, preparative tables, charts,

and illustrations as well as CDs with open PDF files for free use within the experiment tasks in turn all facilitate and support access to the respective subjects and enhance the effectiveness of education in the natural sciences. The literature with a uniform look offers additional advantages, just as in the fact that PHYWE develops their teaching materials and solution systems in close co-operation with universities. As a result, the master and bachelor courses provide universities and other institutions of higher education with exactly those system solutions and materials that were developed in view of their specific needs.

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Master and bachelor courses by PHYWE: for sophisticated education at universities

PHYWE’s master and bachelor courses offer a total of 360 experiments in physics, chemistry, biology, and in applied sciences, in turn enabling students to experience the natural sciences.

Among these is the electrophysiology lab for human physiology lab courses in medicine. Other complex experiments are also rendered in a clear and didactic manner – among these are the Zeeman effect, Stern-Gerlach experiment,

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Franck-Hertz experiment, and experiments with X-rays. All in all, PHYWE’s master and bachelor courses cover all of the essential experiments in classical and modern physics, which can be performed with our unique “Laboratory Experiments” LEx system. However, apart from fundamental experiments, PHYWE’s master and bachelor courses also offers the opportunity to benefit from ultra-modern computer assistance throughout the experiments. Together with our high-performance measure software, our universal Cobra3 interface can be used in numerous applications in physics, chemistry, biology, and applied sciences. Another advantage of PHYWE’s master and bachelor courses: most of the units can be used in numerous different experiments.

Our X-ray unit, for example, offers more than 40 potential experiments. This ensures well-structured material packages and saves costs.

With the master and bachelor courses, PHYWE offers extensive support for complex and sophisticated education at universities.

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Liven up your lectures and laboratory courses with our LEx programme

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Dr. Michael Mehlhorn

Dr. Ludolf v. Alvensleben

Dr. Thomas Meier

Wolfgang Kuhnle

Product Manager Physics

Product Manager Physics

Product Manager Chemistry

Product Manager Biology

The LEx programme offers you an extensive selection of classical and modern experiments in physics, chemistry, biology, and applied sciences. LEx stands for „Laboratory Experiments“. At present, it covers more than 230 experiments of the “Laboratory Experiments Physics” collection, more than 80 experiments of the “Laboratory Experiments Chemistry” collection, 50 experiments of the „Laboratory Experiments Biology“ collection, and more than 100 experiments in applied sciences.

Examples of these are the computer-assisted experiments with PHYWE’s X-ray unit for lectures concerning experimental solid-state physics. With more than 40 documented experiments, physical contexts can be conveyed in a convincing manner. Their use in lectures as well as in laboratory courses helps students to understand and memorise the principles and interrelations more efficiently and permanently.

Another example is the range of experiments with the Magnus gyroscope – one of PHYWE’s Our university programme is for those laboratory classics – for conveying the gyroscope laws within course supervisors who have to rely on long experimental physics lectures in a particularly lasting, safe experiments with a didactic backimpressive way. An example taken from the field ground for their laboratory courses. Our program- of chemistry is the computer-assisted potenme covers most of the standard experiments for tiometric pH titration for lectures in analytical laboratory courses in physics, physical chemistry, chemistry or food chemistry, which can be used, human and plant physiology, biochemistry, and for example, to determine the phosphoric acid neurophysiology, as well as experiments for content of soft drinks. microscopy courses and applied sciences.

Another field is the range of experiments with At the same time, it is also for those professors the neurobiology laboratory in biology, neurobioand lecturers who teach the fundamental prinlogy, and medicine for conveying the fundamenciples of natural sciences through experimenttal neurobiological principles of Alzheimer’s and based lectures.

Parkinson’s disease, dementia, memory loss, and pain.

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Extensive knowledge – the subjects covered by PHYWE

Physics: n n n n n n n

Franck-Hertz experiment with Hg

Chemistry: n n n n n n n

Law of the integral ratios of volumes

Kinetic theory Thermochemistry and calorimetry Chemical equilibrium Interfacial chemistry Reaction kinetics Electrochemistry Photometry and photochemistry

Biology: n n n

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Measurements of the giant fibre of an intact earthworm

Mechanics Optics Thermodynamics Electricity Atomic physics Nuclear physics Solid-state physics

Human physiology Neurobiology Physics of X-rays for medical doctors and biologists Biochemistry Plant physiology Ecology

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Applied Sciences: n n n n n n n

Food chemistry Petrochemistry Renewable energy Biotechnology Neurobiology Materials science Laser physics

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Laser-Doppler–Anemometry (LDA)

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One system for EVERYTHING – Recording and analysing measurement data with our “measure” software

For education in the natural sciences towards the end of the basic courses, the computer-assisted recording and analysis of measurement data is becoming increasingly important. Numerous phenomena cannot be conveyed or presented without computer assistance. In addition, the execution and evaluation of the experiments are considerably simplified. Lectures are also made easier, since the issues of complex or rapid phenomena, such as in electricity or solid-state physics, can be conveyed much more efficiently and convincingly with the aid of computers.

Fine structure of the α spectrum of 241Am with the multi-channel analyser

Most of the experiments use the universal, highperformance measurement data recording system Cobra3. The measure software is always used for capturing the data - from the secondary school level I up to the university level. Apart from the representation and measurement features, measure also offers an extensive collection of tools for the analysis of data, the export and import of the data of other applications, and much more. In addition, measure offers particularly easy access to the experiment. The computerassisted experiments can be selected from the list of subjects. If desired, experiment descriptions, measurement settings, and example measurements can also be loaded.

One out of three experiments of PHYWE’s university programme is computer-assisted. The central platform for the recording and analysis of measurement data is the measure software. Experiments with corresponding units can be directly connected to the computer such as, for example, the X-ray unit, the multi-channel analyser, or the If you need more information, please order our Franck-Hertz operating unit.

Cobra3 brochure or visit our website: www.phywe.com

User advantages of “measure” n One software for all of the computer-assisted measurements and analyses n Intuitive operation n Easy import and export of data and graphs n High-performance evaluation and representation tools n Ready-to-use experiments can be selected from a list of subjects n Extensive help function

Simply load an experiment

Perform the measurement

Evaluate the data

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Measurement data recording with Cobra3 – universal and powerful

Most of the computer-assisted university experiments are performed with our universal measurement data recording system Cobra3.

Cobra3 offers four cascading basic units (UNITs) and numerous plug-in measurement modules and sensors. Combined with the power and functionality of measure, Cobra3 can be ideally adapted to the most versatile applications in natural sciences and technology at universities.

The Cobra3 Basic UNIT with a maximum scanning rate of 500 kHz (analog) or 4MHz (digital) and up to four measurands, for example, enables the tracking of extremely rapid signal courses. The type of measurands can be selected from a wide range of different measurement modules and sensors. The Cobra3 CHEM UNIT with its range of measurands (conductivity, pH/potential, 4x temperature, digital input for drop counters/motor piston burettes) offers everything that is required for computer-assisted chemistry experiments.

Cascaded basic units (Cobra3 DISPLAY, BASIC, CHEM, and COM UNIT) with a selection of measurement modules/sensors

The software module PowerGraph, which can be connected to measure as a plug-in module, enables the intuitive and quick configuration of complex, cascading set-ups. PowerGraph has a graphical user interface for the automatic identification and intuitive configuration of the hardware. In addition, reverse values (relations) as well as XY graphs or calculated measurement channels are possible.

User advantages of Cobra3: n Universal measurement interface for natural sciences and technology at universities n Wide range of different measurement modules/sensors n Use of the advantages of “measure” n Ease of adaptation, compact design

Intuitive configuration of complex, cascaded set-ups with PowerGraph

Measurement data recording with Cobra3 – the Stirling engine

n Tracking of highly rapid signal courses (500 kHz analog or 4 MHz digital) n Cascading set-up, yet intuitive configuration (PowerGraph) n Can also be used without a computer for laboratory courses and lectures

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Experiment descriptions

Collection of experiments of the LEx series With currently more than 350 experiments of the LEx series, PHYWE offers an extensive range of solution systems for scientific and technical education in lectures and laboratory courses. The state-of-the-art experiment literature, which is specifically adapted to the needs of the respective target groups, helps with the execution of the experiments and includes: n a list of specialist terms concerning the experiment n a photo showing the complete experiment set-up n a brief summary of the experiment method n a list of tasks for your students n a detailed equipment list n a didactic summary of the theoretical background of the various experiments n instructions concerning the execution of the experiments, including all of the necessary settings plus tips for obtaining excellent results n a complete evaluation with literature references

You will obtain an optimum overview with our experiment collections LEP, LEC, and LEB. There, you will find experiments in physics, chemistry, and biology, all grouped into individual subjects, as well as brief, one-page descriptions of the experiments.

We can already offer you more than 100 experiments in applied sciences.

Experiment descriptions in physics, chemistry, and biology

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Laboratory Experiments Physics

In order to deepen the physical principals that are taught during the lectures, PHYWE offers an extensive range of classic and modern laboratory experiments.

The „Laboratory Experiments Physics“ collection includes (nearly) all of the standard experiments that you need for teaching your students in basic and advanced laboratory courses as well as in laboratory courses for physics as a minor subject. We offer inspiring experiments in mechanics, optics, thermodynamics, electricity, solid-state physics, atomic physics, and nuclear physics.

Mechanics 74 experiments concerning statics, dynamics, mechanics of liquids and gases as well as acoustics.

Example: triaxial gyroscope Advantages: n Triaxial gyroscope with ball bearings n Easy and intuitive performance of the gyroscope laws n Additional weight for increasing and eliminating the torque in contrarotation You can find more under: LEP 1.3.19

The Magnus gyroscope – one of PHYWE’s classics

Example: Wave phenomena with ultrasound Advantages: n Goniometer (stepper-motor-controlled) for safe and intuitive operation n All of the fundamental experiments concerning the subject can be performed n Computer-assisted measurement data recording already integrated You can find more under: LEP 1.5.13-24

Triaxial gyroscope Ultrasonic diffraction at a slit

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Optics More than 70 experiments in geometrical optics, interference, diffraction, photometry, polarisation, and applied optics/laser optics.

Example: Advanced optics system for laboratory courses Advantages: n Compact and clear two-dimensional set-up n Safe use due to magnetic supports with Teflon gliders n Excellent results thanks to a vibration-dampened base plate with a high level of inherent stiffness n More than 45 documented experiments in wave optics, holography, interferometry, Fourier optics, and applied optics n

Example: CO2 laser Advantages: n Didactic laser n Everything is clearly visible; no black box n The composition of the gas can be changed n Maximum power 5 W You can find more under LEP 2.6.04

Easily extendible

Recording and reconstruction of a hologram

CO2 laser set-up

If you need more information, please order our brochure “Advanced Optics�.

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Thermodynamics

Electricity

24 experiments in the fields of thermal expansion, ideal and real gases, calorimetry, phase transition, diffusion, and applied thermodynamics.

38 experiments concerning the steady-state current, electric field, magnetic field, electrodynamics, and electromagnetic waves.

Example: Stirling engine

Example: Fundamental principles of electricity/ electronics

Advantages: n Clear set-up n Carnot cycle easily comprehensible n Efficiency calculation n The first and second law of thermodynamics and their reversal can be measured n Can be used with and without an interface You can find more under: LEP 3.6.04

Advantages: n Compact and clear set-up n Universal measurement data recording system with a function generator for measuring highly rapid signal courses and frequency dependencies n High level of variability thanks to numerous fundamental experiments concerning, for example, the characteristics of components, the inductance of coils, magnetic induction, capacitors and coils in the AC circuit, the RLC AC circuit, high-pass and low-pass filters, etc. n Easy adaptation and extension for more complex experiments You can find more under: LEP 4.1.01 and the following experiments.

Stirling engine with Cobra3

Inductance of coils with Cobra3

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Solid-state, atomic, and nuclear physics 78 experiments in the following fields: physics of the electron, radioactivity, sold-state physics, atomic and nuclear physics, plasma physics, and the physics of X-rays.

Example: Zeeman* effect Advantages: n Normal and abnormal Zeeman effect in one set-up n With an electromagnet or a permanent magnet n Fabry-Pérot interferometer with high resolution n Computer-assisted evaluation of the interference phenomena *(Pieter Zeeman, Nobel Prize in physics 1902)

Example: Stern*-Gerlach experiment Advantages: n Fundamental experiment for explaining the nature of quantum mechanics n Sophisticated physics as a laboratory experiment n Computer-assisted execution and evaluation of the experiment *(Otto Stern, Nobel Prize in physics 1943)

You can find more under: LEP 5.1.11

You can find more under: LEP 5.1.10

Proof of the Zeeman effect

Example: physics of X-rays Advantages: n

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Easy-to-use X-ray unit with a full protection certificate 4 different quick-change tubes (Cu, Mo, Fe, W) More than 30 experiments

Stern-Gerlach experiment

We would be pleased if we could send you our catalogue „Laboratory Experiments Physics“, in which all of the experiments are concisely presented.

You can find more under: LEP 5.4.01-63

Experiment with the X-ray unit

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Laboratory Experiments Chemistry

In the education in chemistry, experiments should always be at the core of the lessons and courses, either as demonstrations held by the lecturer or as experiments performed by the students themselves. With the „Laboratory Experiments“ series, PHYWE offers a collection of 82 experiments concerning physical chemistry for universities and colleges, but also for the secondary school level II.

The experiments cover the following fields:

Kinetic theory 12 experiments concerning the gas laws, the determination of the molar mass in accordance with the vapour density method, and viscosity.

Thermochemistry/calorimetry 16 experiments concerning the heat capacity, reaction enthalpies, boiling points, melting point, and calorimetry.

Gas laws with the glass jacket system

Advantages: n Clear set-up n Absolutely mercury-free n Quick execution n The measurement of the state quantities with an interface enables the quick and easy graphical representation of the results n Quick preparation

Determination of the evaporation enthalpy of a liquid substance

Advantages: n n n

Clear set-up Electric calibration of the calorimeter system The measurement with an interface enables the precise recording of the temperature curve over time

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Chemical equilibrium Advantages: 15 experiments concerning phase, dissociation, n Compact and clear set-up and solubility equilibriums, the vapour pressure of mixtures, distillation, and gas chromatography. n The measurement with an interface enables the precise recording of the reaction over time

Electrochemistry 21 experiments in the following fields: conductivity, electrochemical potentials, pH measurement, electrolysis, and electrochemical analysis methods.

Determination of the theoretical plate number of a distillation column

Advantages: n n

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Compact and clear set-up All of the components are clearly visible (no reflective coating) Maintenance-free thanks to the mechanical column head

Interfacial phenomena 7 experiments concerning the surface tension, adsorption, and electrokinetic potential.

Temperature dependence of the electromotive force

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Safe separation of the two half cells Precise temperature control Exact measurement results

Chemical kinetics

Photometry/photochemistry

8 experiments concerning the kinetics of chemical reactions.

3 experiments concerning the interaction of light and matter (spectra, pKa determination) We would be pleased if we could send you our catalogue “Laboratory Experiments Chemistry�, in which all of the experiments are concisely presented.

Conductometric measurement of ester saponification

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Laboratory Experiments Biology

For the education in medicine, human physiology, plant physiology, and biochemistry, PHYWE offers a uniform measurement data recording system, which is so flexible that a great variety of experiments can be performed. PHYWE also supplies didactic experiment literature for all of these experiments.

Electrophysiology laboratory

Neurobiology laboratory

The electrophysiology laboratory for physiological laboratory courses for basic biology and medicine courses at universities enables four experiment set-ups: electrocardiography (ECG), electromyography (EMG), electrooculography (EOG), and muscle stretch reflex. All of these set-ups use the same measurement data recording system.

Therefore, students do not need to familiarise themselves with other data capture tools and can instead focus on the execution of the experiments. There is a wide range of interesting applications, e.g. the signal transmission rate in nerve cells, the reading speed, reaction time, or a fitness comparison of trained and untrained persons.

PHYWE‘s neurobiology laboratory enables the didactic treatment of the fundamental neurobiological principles of highly topical subjects, such as Alzheimer‘s and Parkinson‘s disease. 13 fundamental experiments concerning nerve cells can be performed with the equipment set. The neurobiological laboratory is also suitable as a demonstration system, since the controls and functional elements of the system are clearly visible from the auditorium and the measurement results can be projected with a beamer.

User advantages: n Complete didactic solution of four medical standard methods n Didactics of methods that are used for diagnosing diseases (cardiovascular and circulatory system, nervous system) n Numerous interesting applications n Suitable as a demonstration system and as a system for laboratory experiments

Experiment subjects: n n

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Intracellular potential and action potential Membrane time constant the low-pass filtering Excitatory synapse Hebb’s synapse Inhibitory synapse Veto synapse

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Other subjects are: n Interaction between nerve cells, sensory cells, and motor cells n Neural networks n Complex neural networks These subjects are possible if one to three additional nerve cells are added to the equipment set.

A total of 31 experiments can be performed, such as experiments on action potentials, synapses, conditioned reflexes, neuronal oscillators (body clock), and short-term memory.

As a complement to the neurophysiology laboratory, the following experiments are helpful: n

As an entry-level experiment in neurophysiology: model experiment concerning the measurement of the membrane potential of a nerve cell (P4010450),

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Neurophysiological experiments with laboratory animals (intact earthworms): various measurements of the median and lateral giant fibre in the ventral nerve cord Recording of nerve potentials following an electrical stimulation: effect of an anaesthetic, different conduction velocities of giant fibres, and the assessment of the refractory phase

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Physics of X-rays for medical doctors and biologists

Biochemistry and plant physiology laboratory The following experiments can be performed with the experiment system: photosynthesis, transpiration of leaves, glycolysis, ion permeability of the cell membrane, determination of the Michaelis constant, substrate inhibition of enzymes, enzyme inhibition, and the enzyme activity of catalase.

Experiment set-up “transpiration of leaves”

We would be pleased if we could send you our catalogue „Laboratory Experiments Biology“, in which all of the experiments are concisely presented.

The following laboratory experiments for medicine and biology courses at universities can be performed with our didactic X-ray unit: n X-ray dosimetry n Contrast medium n X-ray photography n Absorption of X-rays n X-ray structural analysis

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Rediscovering applied sciences Natural sciences in everyday life

The distinction of science in the classic fields of physics, chemistry, and biology is increasingly becoming blurred and there is a strong trend towards interdisciplinary and application-oriented learning, which is surely due to the fact that our environment is rapidly changing. Answers to the questions and global challenges of our “new” everyday life are increasingly difficult to find with the concepts of classic natural sciences alone. This trend can also be observed at universities. There are numerous new disciplines covering attractive new subjects. For teaching and research, this new area is an opportunity and a challenge alike. The gaps between the great specialisations in physics, chemistry, biology, and the required new interdisciplinary subject areas must be closed.

Applied sciences at PHYWE

Food chemistry

In physics, biology, and chemistry, PHYWE already offers a wide range of teaching subjects with highquality solution systems and course materials, but PHYWE‘s range of products also covers a lot in the field of applied sciences: approximately 100 experiments and product packages from the lower school level up to laboratory courses at universities. We also offer customised solutions that are specifically adapted to the needs of our customers.

The following subject areas are already covered by our product range:

The field of nutrition and digestion is perfect for including experiments with a direct relation to our everyday life into the education of students.

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Food chemistry/polymer chemistry/ petrochemistry Renewable energy Environmental technology/supply of drinking water Biotechnology/neurobiology Materials science Applied optics

The practical identification of nutriments is not only important for the vocational and professional education; it also underlines the rules for healthy nutrition in an impressive manner.

Because of the ever-increasing consumption of ready-made meals and “fast food”, experiments concerning the industrial food production and processing play an important role.

The manual “Food Chemistry” includes 41 easy experiments concerning the basic ingredients of food: n

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Proteins: 10 experiments concerning the identification, characteristics, and use of proteins Fats and fat-accompanying substances: 9 experiments concerning the production, characterisation, and properties of fats Carbohydrates: 9 experiments concerning the production, characteristics, and properties of carbohydrates

Renewable energy – one of many subjects in applied sciences

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Stimulants and flavourings: 8 experiments concerning the identification and preparation of alcohol, fruit acids, quinine, etc.

Vitamins: 5 experiments concerning the identification of vitamins n

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Bacteria used in mining - microbial ore leaching by Thiobacillus Immobilised cells used in biotechnology – microbial synthesis of acetic acid by Acetobacter aceti

The two bioreactors – one airlift reactor and one stirred-tank reactor – are so flexible that other biotechnical methods can also be applied.

Quantitative fat determination in foodstuffs through multiple extractions

Biotechnology Biotechnological production methods play an important economic role in the pharmaceutical, chemical, and foodstuff industries. Production takes place in bioreactors, in which the mixing processes, gas injection, pH, temperature, and other parameters can be controlled with a high level of precision.

Microbial synthesis of acetic acid with the aid of Acetobacter aceti

The system can also be used for demonstration purposes, since the experiments can be set up on a vertical plate for complete experiments so that all of the components are clearly visible from the auditorium.

Materials science Energy-resolved spectra can be recorded with a combination of an X-ray energy detector, a multi-channel analyser, and an X-ray unit. As a result, experiments concerning X-ray fluorescence analysis can be demonstrated easily or performed as a laboratory experiment. The method is applied for the non-destructive characterisation of metals, alloys, and superconductors such as in this example of an X-ray fluorescence analysis of a YBaCu0 superconductor.

Further information concerning the field of applied sciences can be found in our brochure “Applied Sciences”, which you can order.

PHYWE offers a complete small-scale teaching and learning system for didactic purposes with which the following, well-documented experiments can be performed: n

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Fermentation of molasses into ethanol with the aid of yeast Microbial synthesis of ethanol by Zymomonas Preparation of amino acids through the fermentation of Crynebacterium glutamicum

Spectroscopy of a YbaCu0 superconductor with the X-ray energy detector

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Product highlights made by PHYWE – True masterpieces

With their unique products, PHYWE has demonstrated their excellence in developing and manufacturing teaching materials for natural sciences. One example is our diffusion cloud chamber that makes natural background radiation visible in a fascinating manner. Students and everybody who is interested in natural sciences can observe a phenomenon, which is normally invisible.

Diffusion cloud chamber by PHYWE The diffusion cloud chamber by PHYWE is one of the oldest, modern particle detectors. It is particularly suitable for observing natural background radiation, i.e. the type of radiation that surrounds us every day. There are two types of natural radiation: cosmic radiation and the natural radioactivity of the earth. Whether it is α-particles, β-particles, protons, muons, electrons, or positrons – all types of electrically charged particles can be observed.

Diffusion cloud chamber by PHWE

Inside the cloud chamber, there is a zone of oversaturated alcohol vapour with a layer thickness of approximately 1 cm. If an ionising particle passes through this layer, it produces a cloud track. The shape of this track provides information concerning the type of particle and its kinetic energy. „Large“ α-particles produce a short, wide track, low-energy β-particles change their direction when they collide with an alcohol molecule, and high-energy muons produce a straight track.

The electron-position pair generation - though very rare - is always a highlight. Between 100 and 500 cloud tracks are always visible, but they disappear due to condensation at the cooled base plate. The spectacle that repeats over and over again fascinates every observer.

Enter the world of cosmic and terrestrial radiation with our diffusion cloud chamber. As an object illustrating the subject of radioactivity, the diffusion cloud chamber is used at universities and schools, but it also attracts visitors in museum, science centres, and even at art exhibitions, such as the world‘s largest art exhibition, Documenta.

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Distillation system The distillation system can be used to demonstrate and understand the fundamental principles of counter-current distillation (phase equilibrium of multicomponent systems) or for the preparative separation of hardly separable compounds.

The system comes supplied with evacuated, uncoated insulating jackets. Since the components have no reflective coating, the inside of the system is clearly visible during the distillation, which makes the system particularly suitable for teaching purposes.

The combination of two large packed columns enables a higher separating capacity (high theoretical plate number).

The adaptors between the columns enable the withdrawal of substance samples, which can then be easily separated by gas chromatography.

The column head with the attached intensive cooler is used for the manual adjustment of the reflux ratio of distillation columns, i.e. the separation of the condensate into reflux and outflow. It is suitable for operation under normal pressure.

Set-up of the distillation column (height: 2.30 m)

References Our German-speaking customers at research institutions and universities include: Georg August University Gรถttingen LMU Munich n University of Potsdam n University of Bielefeld n ETH Zurich n TU Berlin n DESY Hamburg n RWTH Aachen n Humboldt University Berlin n University of Konstanz n n

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Excellent products, consulting, and service PHYWE provides assistance and brings people together

Education in the natural sciences begins in a lecture hall, but our service starts a long way before all that. Our extensive and perfected customer care programme is based on the three columns Campus, Pre-Sales, and After-Sales. Campus is a training and education programme that provides our end users, sales partners, and employees with the opportunity to always be up-to-date in terms of the scientific and technical developments at PHYWE. Whether it is online, at the customer’s site, or in-house at PHYWE in Göttingen: our Campus is always there for you.

The Pre-Sales area includes – among other things – the scientific contributions of PHYWE at specialised conferences, product and system demonstrations, and seminars, but also consulting

and support in the definition of projects and the selection of the optimal solutions and systems for your specific needs. We ensure that you make the right decisions, and that you receive and use the best cost-performance ratio. Please do not hesitate to ask us! With our After-Sales programme, we ensure that you can use your PHYWE product efficiently for a long time. This is indeed reliable protection for your investment. We are there for you if you have queries concerning the respective installation or utilisation, but also for the supply of spare parts or in the event of warranty claims and repairs. Our technical hotline supports you.

Customer Services

In-house

Campus

Pre-Sales

After-Sales

Trainings

Support

Technical Support

On-site

Conference

Consulting

Technical Hotline

Repair

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First-class service by PHYWE Consultation required? Or you can order directly under:

Contacts Germany

P. +49 (0) 551 604-130

info@phywe.com

America, Spain, Portugal

P. +49 (0) 551 604-119

asp@phywe.com

Africa

P. +49 (0) 551 604-188

africa@phywe.com

Asia-Pacific

P. +49 (0) 551 604-245

asia@phywe.com

Eastern Europe

P. +49 (0) 551 604-137

oe@phywe.com

Near and Middle East

P. +49 (0) 551 604-222

nmo@phywe.com

Africa (francophone), France

P. +32 (0) 436 162-30

liege@phywe.com

Western Europe

P. +49 (0) 551 604-231

we@phywe.com

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

Sales Agency Liege Grand Route 79 B-4610 Beyne-Heusay Liège/Belgique

PHYWE headquarters in Göttingen, Germany

22 23

RZ 24-Seiter Hochschule UK.indd 23

09.03.2009 10:12:58 Uhr

PHYWE Systeme GmbH & Co. KG Succursale belge

Robert-Bosch-Breite 10 D-37079 Göttingen

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

info@phywe.com www.phywe.com

Grand´Route 79 B-4610 Beyne-Heusay

T. +32 (0) 436 162 - 30 F. +32 (0) 436 162 - 48 + 49

liege@phywe.com www.phywe.com

excellence in science

RZ 24-Seiter Hochschule UK.indd 24

002222-02

Subject to technical change. Errors excepted. Please refer to our general terms and conditions.

Our sales partners:

MF 24

09.03.2009 10:12:59 Uhr