Solving nesting problems or irregular strip packing problems is to position polygons on a fixed width and unlimited length strip, obeying polygon integrity containment constraints and nonoverlapping ...

Department of Chemistry, University of Utah, 315 South 1400 East, RM, 2020, Salt Lake City, Utah, 84112, and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, ...

Fingertip tactile neurons collectively encode the skin's viscoelastic state alongside current touch, potentially enabling the brain to better interpret forces during manipulation.

Some decades later, during the Spanish Inquisition, all Jews were forced to leave the country or convert to Christianity. The floor plan of the synagogue is unusual: It is an irregular quadrilateral ...

Dice are examples of so-called "rigid bodies," broadly defined as shapes that move as one solid piece, with no need for ...

Well, the Clark County (Nevada) Coroner's Office announced Thursday that Christman died from cardiac arrhythmia, an irregular heartbeat and cardiomyopathy, a disease that impacts the heart muscle.

But soon, the test became much harder, challenging the crows to pick out subtle variations in squares, parallelograms, and irregular quadrilaterals. Despite the difficulty, the crows succeeded ...

Sci. Adv., 2025) In a sort of progression from easy to hard mode, the trials featured such quadrilaterals as the classic square, rhombus, isosceles trapezoid, right hinge (shown above), and an ...

They found slight learning effects, but the core skill was present from the beginning. To probe deeper, the researchers compared the birds’ success with the types of quadrilaterals shown. These ...

We humans are seemingly born with geometry. From toddlerhood, we favor symmetrical faces, build with blocks, and draw rectangles even before we write letters. We don’t have to learn what ...

After the birds understood this game, the researchers started showing them sets of shapes that included squares, parallelograms, or irregular quadrilaterals. Sponsor Message The crows might see ...