SortStack #608 — 2028-02-07

By size · Order from shortest to longest.

1. A grain of table salt 0.5 mm

   Each crystal is a near-perfect cube because salt's atoms stack in a rigid cubic lattice.

2. A hen's egg 5.5 cm

   An eggshell has up to 17,000 tiny pores that let the developing chick breathe through the surface.

3. A classic incandescent light bulb 11 cm

   Its glowing filament reaches around 2,500 degrees Celsius, yet wastes most of its energy as heat, not light.

4. A new wooden pencil 18 cm

   A single pencil can draw a line roughly 56 kilometres long before the graphite runs out.

5. A French baguette 63 cm

   French law defines the traditional baguette so strictly it can contain only flour, water, salt and yeast.

6. A marathon course 42.2 km

   The odd distance was fixed in 1908 so the London race could start at Windsor Castle and finish before the royal box.

← All puzzles · Play today’s SortStack