← A8 HOME
HANGOUT · PIECES OF EIGHT
PIECES OF EIGHT · 0/8
👆 TRY THIS: Pick a language, then press NEXT.
COME PLAY

Mini-Me found something in the sand.

A LITTLE RULER… and maybe treasure.

The Storybook has grown. Now there are 8 Pieces of Eight hidden through the pages.

🏴‍☠️ 🪙 🧭 🌍

Learn one idea at a time. Earn coins. Find the compass.

CHOOSE YOUR LANGUAGE · ELIGE TU IDIOMA

Same storybook. Same buttons. Switch whenever you want.

🦜
Captain Mini-Me says: “If you can touch it, fold it, click it, hear it, or point at it, it probably belongs in Hangout.”
TREASURE 1 · STRING EXPERIMENT

Make A8 measuring strings.

You need: a measuring tape, string, and scissors.

Measure about 238 cm of string.

Close enough is fine for this hands-on experiment.

0 238 cm 238
CUT 0 OF 7
KEEP CLICKING THE SCISSORS BUTTON · THE BRICK CHALLENGE APPEARS AFTER 7 CUTS
Start with one 238 cm string.
YOUR A8 STRING BOX
238 cm
✂️
No calculator required. Fold the ruler physically, then use the pieces to measure real things.
RULERS

Double the ruler.

Mini-Me · A8L 29
YOU KNOW THIS ONE · ABOUT A 12-INCH SCHOOL RULER
↓ double
Kids · A8L 30
↓ double
Big ruler · A8L 31
BIG NOW · ABOUT THE SIZE OF A 7-YEAR-OLD
DID YOU KNOW? 🌍

You live on Earth — and the A8 ruler comes from Earth’s size.

About 33 million 7-year-olds, lying head-to-toe, could circle Earth once.

You are one measurable piece of the Earth ruler.

BIG RULER? YES. BIGGEST RULER? NOT EVEN CLOSE. 😄
📏
Two little rulers make the next ruler. A8 loves doubling because Nature keeps handing us the same pattern in bigger and smaller forms.
TREASURE 3 · BITS

Five switches. Thirty-two states.

Dark is 0. Lit is 1. Can you build numbers by turning on the right bits?

00000 = 0
💡

Weights: 16 · 8 · 4 · 2 · 1

TREASURE 4 · CLOCK

Imagine your whole day on one 32-hour clock.

🌞
🌙
DAY 0 OF 8
KEEP CLICKING · GO ALL THE WAY AROUND THE CLOCK
Hour 0

10 + 11 + 11 = 32 A8 hours

That is still the same day you have now.

Why?

Because one A8 hour is only 45 old-time minutes.

32 × 45 minutes = 24 old-time hours. No extra day. The A8 clock simply dances faster.

IT'S A HAPPY CLOCK.

An A8 second is shorter than an old-clock second.

tick?

A8 second ≈ 0.6592 old seconds.

🕰️
Try saying it out loud:
“School from 8 to 18. Play from 18 to 29. Sleep from 29 to 8.” The clock wraps around and the whole thing fits inside one ordinary Earth day.
TREASURE 5 · CALENDAR

Five days make a week.

JUPITER WEEK

Hover over a day.
DID YOU KNOW?

Each compass month has 9 planet weeks.

The planets are the week order.

Mercury → Venus → Earth → Mars → Jupiter → Saturn → Uranus → Neptune → Pluto

Nine 5-day weeks = 45 days in one compass month.

Eight compass months make the year.

Move around the compass. Each stop is one month.

8
MONTHS
JUPITER AIR

Jupiter Air happens once in every compass month.

8 TIMES A YEAR

It becomes a familiar friend that returns month after month.

🧭 🜁
NORTH JUPITER AIR

Now add the compass month.

Jupiter Air visits every month, but it is North Jupiter Air only when that Jupiter Air day occurs in the North compass month.

ONCE A YEAR

Same Jupiter Air friend · one particular compass month · one annual return.

🧭
Something odd happens after the 360 regular days.
Curious? There is a little extra week hiding at the edge of the year. Explore Wilson’s Week →
TREASURE 6 · EARTH MAP

Cross the sea: Rome to Athens.

Now it is easier: click the city on the map or use the big city buttons below.

Mediterranean Sea Rome Athens
ONE A8XY POSITION · TWO FRIENDLY WAYS TO READ IT

A8XY means one 2D A8 position: latitude + longitude. Decimal comfort and Octy show the same position two ways.

ROME
DECIMAL COMFORT
A8XY · LAT 68 · LON 18
🐙 OCTY · OCTAL
A8XY · LAT 104₈ · LON 022₈
legacy: 41.9028° N · 12.4964° E
ATHENS
DECIMAL COMFORT
A8XY · LAT 74 · LON 34
🐙 OCTY · OCTAL
A8XY · LAT 112₈ · LON 042₈
legacy: 37.9838° N · 23.7275° E
Pick Rome and Athens.
HUMAN SCALE QUIZ

How tall and how warm are we?

Pick both A8 measurements that best match a typical adult human.

PART 1 · HEIGHT

Which A8L position best matches a typical adult human height?

Choose one.
PART 2 · TEMPERATURE

Which A8T position best matches normal human body temperature?

Choose one.
📏🌡️
Hint: People vary. These are friendly human-scale landmarks, not exact values for every person.
TREASURE 7 · THINGS IN THE KITCHEN

Click things in the kitchen.

Pick something.

Explore all five home objects. The cup and jacket each hide an extra rabbit hole.

SPEED GAME

Little kids love speed.

Match the A8 speed to the right traveler. When you get all four right, watch carefully…

☀️
A8S 47 SPEED LIMIT
A8S 46.9
🚲 BICYCLE
🚗 AUTOMOBILE
🚆 TRAIN
✈️ AIRPLANE
🚀
Match all four.
⚡
Fast clue: higher A8S positions mean faster motion. The highway car is traveling at A8S 46.9, just under the A8S 47 speed limit. The train is faster at A8S 48, and the airplane is faster still.
SOUND ROOM

Double it with your ears.

Same pattern. Different sense. Press the cartoon instruments and hear the note double each time.

220 → 440 → 880 → 1760

Each step doubles the frequency.

Low notes get a little extra punch so small laptop speakers can still hear them.

🎶
Same trick again: double the number, hear the pitch jump. The pattern is doing the work.
SKY ROOM

Can you find Mintaka in Orion?

This mockup follows the familiar Orion shape more closely. Betelgeuse glows orange. Only Mintaka reveals its A8 star coordinates.

ORION
Try the three belt stars. Can you pick Mintaka?
LOOK · WATCH · REPEAT

Earth moves. The Sun shines. Jupiter’s moons repeat.

Click Earth · Sun · Jupiter
Touch the little solar system.
🛰️
Try this: click Earth and it rotates forward, click Sun and the rays brighten, click Jupiter and the three moons start moving.

Dynamic sky, simple story.

Earth turns and advances. Sol shines. Jupiter’s moons keep repeating their dance.

TREASURE 8 · COMPASS

Final clue: find A8∠ 128.

The treasure map says: turn the compass to A8∠ 128.

0 128 256 384

BONUS · CLOCK + COMPASS

If the A8 clock says 28:00:00, where would that be on the compass?

Hover around the compass — or drag a finger around it — and find it.

MOVE AROUND THE COMPASS

32 A8 clock hours fit around 512 compass positions.

THE CHEST

You found the Pieces of Eight.

🔒

Find all 8 coins to open it.