Aha der Treffpunkt für Phänomen-Begeisterte in Zürich

	Optical colour blender Art. 03.07 CHF 53.00 each à Optics	Wooden top with exchangeable, coloured card discs; rotating the top produces many different colour blends. Diameter: 10 cm; 7 discs Design: Ludwig Hirschfeld-Mack; „Original Naef“
	Torsi Art. 03.05a small CHF 18.00 yellow CHF 18.00 green CHF 18.00 orange Art. 03.05b medium CHF 22.00 yellow CHF 22.00 green CHF 22.00 orange Art. 03.05c large CHF 24.00 yellow CHF 24.00 green CHF 24.00 orange	Movement creates illusion Tuned in, spontaneous and fast reacting Top small: Ø 40 mm Top medium: Ø 50 mm Top large: Ø 60 mm Design: Yasuo Fujioka; „Original Naef“
	Set of wooden tops Art. 03.98 CHF 80.00 set	A beautifully crafted set of tops made from different wood (pear, maple, cherry, nut, plum) Dimensions: 24,5 x 7 x 40 mm; Ø = 40 mm Design: Yasuo Fujioka; „Original Naef“
	Op-Tric Set Art. 03.105 CHF 92.00 set à Optics	The eye sees, the mind thinks – black and white is not always black and white. Rotate the top and observe it carefully. Five tops on a black board. Dimensions: board: 24,5 x 6 x 5 cm Design: Heiko Hillig; „Original Naef“
	Top with staying power Art. 70.04 CHF 58.00 each	This aluminium top runs for five to six minutes and allows you to measure time in a contemplative mood. Gift wrapped Diameter: 42 mm Height: 18 mm Design: Christoff Guttermann
	Turning over top Aluminium Art. 70.06 polished CHF 38.00 each Art. 70.06 matt CHF 36.00 each à Physical toys	Once the top has gathered speed, it flips over and continues to rotate on its stem. Available in polished or matt aluminium, packaged in black india rubber. Diameter: 30 mm / Height: 33 mm Design: Christoff Guttermann
	Tumbling top Art. 70.08 CHF 46.00 each à Physical toys	Two sections which can be combined in two ways, either to create a rotating top or a tumbling object (oloid, see illustration) which rolls down a slanting plain in a swaying movement. Height: 30 mm Colour: blue Design: Christoff Guttermann
	Top set Art. 70.02 CHF 70.00 each	This small precision top comes with its own surface. It is made from aluminium and Portuguese slate. Sold in a gift box made from india rubber and natural cardboard. Top: Ø 18 mm; H 52 mm Surface: 12.5/12.5/1.2 cm Design: Christoff Guttermann
	Drawing top Art. 70.01 CHF 284.00 each	The drawing top consists of an acrylic hollow body and an axis of grenadill. The stem can be removed and the tip contains a small brass canulla filled with a coloured liquid. As it moves, the top creates a drawing of its course. This design is protected by copyright and limited to 1500 pieces. Written details included in presentation box Top: Ø 40 mm; height 60 mm Design: Christoff Guttermann
	‚Jungle dancers’ Set of tops Art. 70.05 CHF 120.00 set	Three dancing tops made of palm wood and ebony. The irregular density of the palm wood makes the tops dance around each other in many different ways. Sold in a box made of black corrugated card and unpolished wood. Dimensons: Ø 11-20 mm; height 20-35 mm Design: Christoff Guttermann
	Dancing top ’Papua’ Art. 70.03 CHF 47.00 each	The Papua top is made of dyed coconut shell and grenadill and comes in a container of black corrugated card. The deliberate use of irregular growth in the coconut shell has the effect of a light dancing movement. Top: Ø 25-30 mm; height 46-52 mm Design: Christoff Guttermann
	Rollerball Dyna-Bee Art. 157.39 CHF 30.00 each	Rollerball gives you a sense of the force of a top. The top lies inside a spherical casing and its axis in a surrounding groove. An opening allows the starting of the top. As the casing is slowly tilted, the axis is pressed on to the groove upwards on one side and downwards on the other. If operated with skill, the top accelerates more and more. Dimensions: Ø 70 mm
	Levitron (wood) Art. 157.63 CHF 100.00 set à Magnetics	Challenge gravity and let the Levitron top hover for up to five minutes! This physical phenomenon is based on centrifugal forces and two repelling magnets. Includes detailed instructions and discs for taring. Height-adjustable feet enable easy alignment. Made from soft cherry wood (and therefore very delicate). Dimensions: Ø 16 cm
	Levitron Platinum Pro Art. 157.24 CHF 90.00 each à Magnetics	Challenge gravity and let the Levitron top hover for up to five minutes. This physical phenomenon is based on centrifugal forces and two repelling magnets. Includes detailed instructions and discs for taring. Height adjustable feet make alignment simple.
	Levitron Omega Art. 157.35 CHF 80.00 each à Magnetics	Challenge gravity and let the Levitron top hover for up to five minutes. This physical phenomenon is based on centrifugal forces and two repelling magnets. Includes detailed instructions and discs for taring. Height adjustable feet make alignment simple.
	Levitron Starter Art. 157.74 CHF 18.00 each à Magnetics	Starter for Levitron hovering tops.
	Euler’s Disc Art. 202.23 CHF 78.00 each à Physical toys	Named after the famous mathematician Leonard Euler. A glittering chromuim disc, standing on its edge, is placed on a concave mirror surface. It turns faster and faster und, finally, ends up lying flat on the base. Chromium disc: Ø 7 cm Mirror surface: Ø 22 cm
	Celtic Rattleback wood Art. 120.10 CHF 36.00 light CHF 36.00 dark	These wooden pieces are quite idiosyncratic! Forget the theorem that a turning impulse is maintained. The wooden rattleback has a mind ot its own. Even the Celtic Druids used its hidden characteristics to manipulate decisions in their favour. To find out more about its workings, read the text by Dr. Christian Ucke (an expert in physical toys) or ask a physicist. It’s all about rotation, friction and axis of inertia. Size: 15 cm
	Celtic rattleback synthetic material Art. 157.22 CHF 7.00 red CHF 7.00 blue CHF 8.00 green CHF 8.00 purple	The rattleback (here in synthetic material) has a mind of its own. Even the Celtic Druids used its hidden characteristics to manipulate decisions in their favour. To find out more about its workings, read the text by Dr. Christian Ucke (an expert in physical toys) or ask a physicist. It’s all about rotation, friction and axis of inertia. Size: 10 cm
	Gyroscope Original Art. 18.04 CHF 42.00 each	A high-tech top which defies gravity Axis: 70 mm
	Gyrowheel Art. 157.21 CHF 12.00 each	This wheel (with magnets mounted on each side) moves on a guiding rail. Dimensions: 30 cm
	Optica Art. 11.01 CHF 15.00 each à Optics	Beautiful wooden top with optical effect.
	Chasingtop Art. 18.08 CHF 32.00 each	This Japanese set includes the top, a special stand and two wooden discs.
	Ufo Art. 18.07 CHF 45.00 each	Japanese top consisting of rotating discs in various colours.
	Glockenkreisel Art. 18.06 CHF 26.00 1 St.	Japanischer Holzkreisel in Glockenform.

Op-Tric Set Art. 03.105 CHF 92.00 set

à Optics

Op-Tric Set
Art. 03.105

CHF 92.00 set