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
THE CLOCK FACE
two hands, twelve numbers — how to read the time
$1.50
TONEWOODS
density, hardness, export · what is measured kept apart from what is taste
Free
THE STEREO FIELD
what stays centred · what is spread · why the low end is not panned
$2.50
MORSE CODE
26 letters and 10 digits · dot, dash
Free
PHONETIC ALPHABET
the ICAO standard · for radio and telephone
$2.50
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
IMPERIAL UNITS
convert in your head · without a calculator
Free
PAPER SIZES
the A series · from A0 to A6
$1.50