THE SOLAR SYSTEM
eight planets · size, distance, year and day
SIZE CHARTS
shoes, tops, bottoms — and a centimetre under every grid
ARABICA AND ROBUSTA
two species, six varieties, one difference
MATCHA GRADES
ceremonial, premium, culinary — what is behind the words
YELLOW TEA
yellowing under a cover · the step no other tea has
NEAPOLITAN PIZZA DOUGH
four ingredients in the proportions written into an EU regulation
POUND CAKE
four equal weights — a recipe whose name is its ratio
PROTEIN IN FOODS
grams per 100 g · animal and plant · and the state each one was weighed in
NUMBERS 1 TO 100
the hundred chart · primes picked out in colour
MULTIPLICATION TABLE
1 to 12 · colour intensity = size of the product
TONEWOODS
density, hardness, export · what is measured kept apart from what is taste
MAMMALS IN TIME
from the first synapsid to us · 320 million years on one axis
VERTEBRATES IN TIME
when each group appeared · five hundred million years on one axis
BASIC PHYSICS FORMULAS
fifteen formulas · every letter explained beneath it
ANIMALS
the main branches — from comb jellies to chordates · who is actually related to whom
VERTEBRATES
from lamprey to bird · and why "fish" and "reptiles" are not groups
MORSE CODE
26 letters and 10 digits · dot, dash
THE BASKETBALL
four FIBA sizes with their circumference and mass — and why the rules set a bounce, not a pressure
BALLS BY THE RULES
eleven sports at true relative size — circumference, mass, pressure, and who sets them
IMPERIAL UNITS
convert in your head · without a calculator
BICYCLE CLASSES
frame, wheel by ISO 5775 and handlebar — three signs of a class, and what the frame is rated for
CAR CLASSES
segments A to F by length and bodies by box count — how to name any car you see
MOTORCYCLE CLASSES
rake, trail, wheelbase and seat height — six classes drawn at one scale
THE RACING LINE
one corner, three apexes, the time computed