GraviTrax vs Domino Physics

GraviTrax – the interactive ball track system from Ravensburger for your mobile or tablet. Use the free app for the GraviTrax ball track system with its free editor to build your very own fantastic tracks, and then roll the balls as you watch from different angles. Try endless new combinations and come up with new ideas to build your tracks. Experience the tracks interactively and follow the balls from a variety of camera angles. And in the latest version of the app you can share you tracks with your friends. The GraviTrax ball track system lets you build your own track worlds according to the laws of gravity. Use the construction elements to create a fast-paced course where balls roll to their destination with the help of magnetism, kinetics and gravity. The GraviTrax ball track system makes gravity a fun learning experience which can be extended with countless expansions. Unlimited fun guaranteed! The starter kit and the action-packed expansions are now available in all well-stocked toy shops and online stores.

Domino Physics is a 3D domino sandbox: place tiles and balls on the ground, drag a single curve to lay a whole run of tiles, then press Fire and watch them fall with real physics. [Edit scenes] · The editor switches between Domino, Ball and Track at the top of the panel; the mode's own controls sit right below the switcher · Domino: click the ground to place a tile, hold to select; Height Layer stacks tiles into multi-storey walls, Auto Height hugs the ground · Snap Grid and Show Grid keep placement aligned; Tile Thickness and Time Speed are also adjustable · Ball: Ball Size and Ball Density adjustable, click to place · Track: press and drag on the ground to draw a curve — dominoes line up along it automatically; Track Density and Angle to Track are adjustable; grab any tile of a track to move the whole run, Delete / Esc removes the whole run [Play] · Press Play (Fire in the toolbar) to enter play mode: click a domino to tip it, click a ball to give it a push · Hold a ball to charge (a ring appears under it); release to launch it — a full charge carries it roughly 7.8 m, enough to smash through a long run · Hovering a ball shows a blue aim line that previews its rolling direction · Auto Topple: mark a domino / ball with As Trigger (the triangle points the way it falls / rolls), Reverse flips it, Trigger Interval (ms) staggers the volley; press Fire to launch everything · Reset Scene and Reset View get you back to the start any time; Top View jumps straight overhead [Camera] · Drag = rotate the view, 1:1 like pushing on the tabletop, height unchanged (touch: one or two fingers) · Wheel = rotate, Shift + Wheel = raise / lower (touch: pinch to zoom) · W A S D = fly forward / back / left / right, Q down, E up; multiple keys at once, diagonals are not faster; Ctrl / Cmd / Alt keep these keys for the system · Flight speed scales with camera height — the further you are, the faster you go; tune the whole thing with Key Move Speed in App Settings (0.1×–5×) · Double-tap the ground = a 1-second smooth move to that point; heading and height never change. Double-tap Locate offers Center in view or Walk to point; near-horizontal views auto-switch to Walk to point · The camera only moves when your tap truly hits the ground: hitting a domino / ball, or the sky, does nothing; any manual input cancels a glide in flight [Multiple scenes] · Scenes form a list automatically; Search scenes supports pinyin initials; sort by Recent, Created or Title · The card menu can rename, duplicate and delete; deleting asks for confirmation · Leaving a scene with unsaved changes warns Changes Not Saved [Other] · Collision sound is spatial: volume follows impact energy and distance, stereo pans with the collision's direction · Theme color and UI scale are adjustable; dark / light follow the system · The interface language follows your system (Simplified Chinese, Traditional Chinese, English, Japanese) — there is no in-app switch · Every scene is stored on this device; no network, no uploads, no account needed For whom: people who like setting up domino runs and chain-reaction rigs, anyone who wants to demo the domino effect and energy transfer to kids, and everyone who just wants to watch a long line go down.