THE HAMBURGER
the ratios of the mince and the five steps that decide the result
$1.50
SUGAR IN FRUIT
grams of natural sugar per 100 g of fresh fruit — and how much water sits beside it
$2.50
NEAPOLITAN PIZZA DOUGH
four ingredients in the proportions written into an EU regulation
Free
POUND CAKE
four equal weights — a recipe whose name is its ratio
Free
PROTEIN IN FOODS
grams per 100 g · animal and plant · and the state each one was weighed in
Free
ENGLISH ALPHABET
26 letters · 5 vowels · 21 consonants
$1.50
GREEK ALPHABET
24 letters · names and where science uses them
$1.50
THE BASKETBALL
four FIBA sizes with their circumference and mass — and why the rules set a bounce, not a pressure
Free
FOOTBALL: THE BALL
Law 2, three codes of the game, five sizes and three FIFA quality marks — what a ball must survive
$2.50
BALLS BY THE RULES
eleven sports at true relative size — circumference, mass, pressure, and who sets them
Free