didacta 2021, 23 - 27 February
Glass tube for demonstrating standing sound waves and calculating wavelengths of sound using cork powder in a method devised by Kundt.Cork powder is spread evenly throughout the tube by means of a filler chute. Then a sound source, e.g. a whistle, a 1700 Hz tuning fork (U10115) or a horn speaker (U8432680), is used to excite the powder into a regular pattern of nodes and antinodes. The effective length of the tube can be altered by means of a piston.Length: 600 mmExternal diameter: 20 mmInternal diameter: 17 mmContents:1 Glass tube with funnel1 Plunger1 Filler chute1 Whistle1 Bottle of cork powder
Bone preparation of a pigeon skeleton and, for comparison, a pigeon that is prepared to be lifelike and covered with real feathers. The longevity of the specimen ...
This model shows the S-shaped course in 3D of the volcanic mountain range produced by tectonic shifts in the Atlantic Ocean.
Size at the equator: 1:32 x 106
Experimentiersatz für Schülerexperimente zu den Themenbereichen "Schwingungen und Wellen" und "Ultraschallwellen".
Der Satz enthält zwei dynamische Kraftsensoren ...