Frederiksen
Showing 421–435 of 638 results
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Physics
Photocell unit for mounting on stand
For pendulum period measurements, air track timing, measuring period of rotation etc.It connects to electronic counters of type 200250 or 200260 using the supplied cable with DIN plug.Made from impact-resistant plastic with threads for vertical and horizontal mounting using the supplied Ø 10 mm support post.
SKU: FR-197550 -
Biology
Photosynthesis lamp, LED, full spectrum, 20 W
This full-spectrum LED light is designed for classroom plant experiments. It features two flexible arms with adjustable heads, a clamp for attaching to a table edge or windowsill, and a timer function that can be set to 3, 6, or 12 hours. The light spectrum mimics sunlight in the 380–800 nm range, and the brightness can be adjusted in ten levels. The light operates on 100–240 V and supports plant experiments all year round.
SKU: FR-763032 -
Physics
Physical pendulum/Bessel pendulum
The physical pendulum is used to study moments of inertia and the motion of rigid bodies.The centre of gravity, pivot point and moment of inertia can be varied in innumerable ways.For calculation, Steiner’s theorem is useful, as well as a number of formulae for moments of inertia of the pendulum’s different components.
SKU: FR-218100 -
Astronomy, Physics
Planetarium, Helios
Helios is a mechanical planetarium that models the Solar System with Mercury, Venus, Earth (with moon), Mars, Jupiter and Saturn in correct relative orbital speeds. The speed can be adjusted continuously – forwards and backwards – so that phenomena such as the retrograde motion of Mars can be clearly demonstrated. The removable dome shows the northern starry sky, and a separate 100 mm globe of the Earth is included for seasons, day and moon phases.
SKU: FR-560000 -
