IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This brass leg for a drawing compass ...

When you try to draw a circle on paper using a common compass, you are not very smart because you need to pierce the paper with a pointed needle. ' Iris ' is a revolutionary tool that can draw an ...

Click to see a step-by-step slideshow. STEP 1: This is what to do when you know the length of 1 side and the 2 angles at each end of it: here 8 cm, 40° and 50°. Draw an 8 cm line using a pencil and ...