Aisle 14No. 260 of 460
Splashery
Walnut CT
269,064 small parts. Assembled in your browser.
Empty. Now look down.

Swipe across the pack to tear it open.
Press and hold. It pulls itself together.
Let go to drop it.
It stays in its pack here. The Playground has the rest.
Imaging · Built from a recipe
Walnut CT
This is a real walnut, scanned with X-ray CT at CWI in Amsterdam: more than a thousand X-ray pictures taken from all around it, worked back into a volume of how dense the walnut is at every point.
Play with it in the Playground
How to play
Drag up or down on the walnut to cut into it. Tap to see only its shell.
Toy facts
- Item
- No. 260 of 460
- Shelf
- Aisle 14, Imaging
- Kind
- Built from a recipe
- Small parts
- 269,064
- Made from
- Drag up or down on the walnut to cut into it.
- Sound
- Yes
- Batteries
- None
- Assembly
- It does that itself
- Licenses
- CC BY 4.0
- Price
- $0.00
Small parts are the splats in its usual build on a computer. A phone may draw fewer.
Its controls
| Control | Kind | Range | Start |
|---|---|---|---|
| Shell only, or the whole walnut | Tap | ||
| Shell only | Switch | Off | |
| Cut | List | 3 choices | Front to back |
| Colors | List | 4 choices | CT gray |
About it
This is a real walnut, scanned with X-ray CT at CWI in Amsterdam: more than a thousand X-ray pictures taken from all around it, worked back into a volume of how dense the walnut is at every point. Each splat here is one small block of that volume, 0.3 mm across, bright where the walnut is dense.
Drag up or down to cut into it and see the woody shell, the kernel's folded lobes and the air between them. Choose the cut's direction and the colors (CT gray, warm, night vision or infrared) in the Splash tab. Tap to show only the densest parts: the kernel melts away and the shell stays. The scan is Walnut 1 of a dataset by Der Sarkissian, Lucka, van Eijnatten, Colacicco, Coban and Batenburg (CC BY 4.0).
Sources and credits
| Work | By | License |
|---|---|---|
| Cone-Beam X-Ray CT Data Collection Designed for Machine Learning: Samples 1-8 (Walnut 1) | Henri Der Sarkissian, Felix Lucka, Maureen van Eijnatten, Giulia Colacicco, Sophia Bethany Coban, K. Joost Batenburg (CWI) | CC BY 4.0 |



