Item no.: P4030211 Principle Tapping the Achilles tendon stretches the calf muscle and causes a reflex contraction in the muscle. This happens because the spindles sense the stretch and send an action potential to the motor neurons which then cause the muscle to contract. The amplitude of the muscle action potential is higher with tensed arm musculature
Item no.: P1522160 Principle An electrocardiogram (ECG) can record the sum of the electrical activities of all of the heart muscle fibres. Under stress, cardiac activity increases in order to maintain the stability of the cardiovascular system. The heart contraction cannot be controlled at will. This experiment enables you to study how physical stress affects
Item no.: P5950100 Principle This set-up shows how blood flow studies are performed using Doppler ultrasound (Doppler sonograph). On a realistic arm dummy, the differences between continuous (venous) and pulsating (arterial) flow are shown as well as the difference in flow through a normal blood vessel and a stenosis. Tasks Analyse blood flow and search
Item no.: P4010111 Principle Earthworms have a median giant nerve fibre, which reacts to stimulation at the front end, and two lateral giant fibres, which can be stimulated at the rear end. The experiment covers the following topics: the course of a biphasic action potential over time, estimation of the conduction velocity and coding of
Item no.: P4110260 Principle Photosynthesis leads to the production of oxygen, which in turn causes the pressure to rise. In this experiment the photosynthesis rate of a plant is determined by measuring the oxygen pressure increase, in white and green light as well as in the dark. Tasks To compare the increase in oxygen pressure
Item no.: P1522260 Principle With this experiment, you can determine your own personal reading speed. One’s reading speed can be trained and is an important prerequisite for the proper handling of all kinds of texts. You can precisely study the movement of your eyes during the measurement. Tasks Explore your reading behaviour reading easy and
Item no.: P4100160 Principle These measurements help to quickly and simply introduce the term “heat capacity”. The students learn on which characteristics temperature changes of surfaces depend. As practical example, reference can always be made here to the hot sand at the seaside. Tasks To prepare comparison curves showing the different heat capacities of water
Item no.: 013 Hydrologic Systems, Rain Simulator and Irrigation Systems Unit (ESHC) Aerobic Digester (PDAC) Anaerobic Digester (PDANC) Flocculation Test Unit (PEFC) Soil Moisture Suction Sand Unit (PAHSC)
Item no.: 012 Teaching Autonomous Pasteurization Unit (PADC) Tray Drier (SBANC) Hydrogenation Unit (AEHC) Continuous Cycle Oil Production Plant (PACC) Teaching Cream Separator (DSNC)
Item no.: 011 Continuous Distillation Unit (UDCC) Gas Absorption Column (CAGC) Liquid-Liquid Extraction Unit (UELLC) Chemical Reactors Training System (QRQC) Rising Film Evaporator (EPAC)