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GREY PULSE · FIELD OUTING No. 1 · NOVEMBER

Possibles

North Without a Compass

OBJECTIVE OF THE DAYBuild an instrument at your bench, drive out to dark ground before last light, and take your bearings the old way: find true north by the stars and measure, to the degree, how far north on the Earth you stand.

Dispatch & Muster30 min
Bench45 min
Skill & Practice30 min
The Outing2 hr
Ledger15 min
Open the dispatch
SCROLL
SITTING I · THE DISPATCH

A letter, an old field book, and a question about where you are.

P

Friend,

You’ll forgive the paper. I prefer a letter to a notification; a letter waits for you.

Once a month I’m going to send you out. Not on a chore. On an outing, in the old sense: a short trip with a purpose, from which you come home carrying something. Set up, gather your gear, hit the objective, home by supper — and back to ordinary life with your head a little clearer.

This month the purpose is easy to say and very old to do. You’ll build a sighting instrument out of a cereal box and a drinking straw, carry it somewhere properly dark, and find out exactly where you are standing on the planet. Nobody will tell you the answer. You’ll take it yourself, the way it was taken for three thousand years before anybody had a phone to ask.

And because no outing should be all business, I’ve enclosed a page from someone who did this for a living.

Hollis WrenQUARTERMASTER · POSSIBLES
FIELD BOOK OF A. QUILL · VOL. X · TESSALY FORD
Oct. 3rd. Clear & cold. Fenn swears the chain is true; I swear it is not. Took the Pole Star at the ford with the brass quadrant, three times, & had it at 49 each time by my scale. Mr. Halloran wants his map by the new moon. He shall have the truth instead.
Hold on to that “49,” friend. It isn’t what it looks like. We’ll come back to it. — H.W.
Hollis
You’ll have questions. Ask. I keep the kettle on for exactly this.
SITTING I · MUSTER · 15 MIN

Gather your possibles.

Before any shoot, any survey, any outing worth the name: lay it all out on the table and check it twice. Half of this is for the bench tonight; half rides in the truck.

0 OF 14 PACKED
Download the craft sheet · PDF Open print view 2 pages, Letter or A4. Cardstock if you have it.
SITTING II · THE BENCH · 45 MIN

Build the Quartermaster’s Quadrant.

  1. Stiffen. Glue Sheet I to a flattened cereal box. Press it under a heavy book for five minutes; good instruments start flat.
  2. Cut. Follow the solid outline, keeping the dashed straw band attached. Score it and fold it back. It becomes the spine.
  3. Mount the sight. Tape a straight straw along the top edge, flush to the pivot corner. Look through it at a lamp: it should be a clean, round tunnel.
  4. Hang the plumb. Pierce the red pivot. Thread through, knot behind, tie a washer to the free end. The thread is your vertical; gravity does the measuring.
  5. Prove it. Rest the straw on a level tabletop edge. The thread must fall on 0°. Off by a hair? Re-pierce exactly on the mark.
  6. Sign it. Initials and date on the back. Ada Quill signed hers. So did every instrument-maker worth remembering.
↖ to the star eye ↘ Fig. 1 — sighting at 28°
Tilt the straw up toward the star; the thread stays plumb. The angle it swings through is the star’s height.
SITTING III · THE SKILL · YOURS FOR LIFE

The one star that keeps still.

Every star wheels around one point in the northern sky, once a day. Polaris sits within a degree of it. Face it and you face true north: no compass, no battery, no signal. Measure how high it hangs above the horizon and that angle is your latitude. Sailors bet their lives on this. You’re only betting an evening.

I · FIND IT

Find the Big Dipper. The two stars at the lip of its bowl — Merak, then Dubhe — point at Polaris. Go about five times their gap.

II · MEASURE IT

At arm’s length: a fist is about 10°, three fingers about 5°, a little finger about 1°. The quadrant does the fine work; your hand checks it.

III · USE IT

Polaris is true north, and its altitude ≈ your latitude. Each degree is about 69 miles. Within one degree, you’ve done what navigators did.

PUZZLE I · FIND THE POLE STARUNSOLVED
Tonight’s sky, facing north. The Dipper sits wherever the hour has put it. Click the Pole Star.
SITTING III · SIGHTING PRACTICE

Take the star. Pinch the thread.

Practice here before you go. Tilt the quadrant until the star sits dead-centre in your straw, then pinch the thread against the card and read where it crosses the scale, the way you will tonight by red light with cold fingers.

PUZZLE II · A PRACTICE SIGHTINGUNSOLVED
THROUGH THE STRAW
THE QUADRANT · AT YOUR EYE
Tilt until the star is centred. Then pinch.
Hollis
Good hands. Now: Ada’s “49.” Her quadrant was a ship’s pattern, older than ours, and its scale was numbered from the straw edge, not the plumb edge. Ours reads zero when the straw is level. Hers read ninety.
Hollis
So. On our scale, how high did Ada see the Pole Star at Tessaly Ford, and what was her latitude?
PUZZLE III · ADA’S FORTY-NINEUNSOLVED
Ada’s reading: 49, “by my scale.” Her latitude, in degrees north?
HOLLIS WREN · A NOTE PINNED INSIDE VOL. X
Forty-one north. A line that runs from Long Island Sound across the Pennsylvania hills into the Ohio country. Ada was right to the degree. But Halloran’s printed map, which I also have, puts Tessaly Ford at forty-two.
Sixty-nine miles is a long way to misplace a river. Somebody moved it on paper. Hold that thought until next month. — H.W.
SITTING IV · THE OUTING · ABOUT 2 HOURS · ONE CLEAR EVENING

Go out before last light. Come home by the stars.

This part can’t be done on a screen, and that’s the point. Bring a friend if you like; this one is better with two.

CHOOSE YOUR GROUND

THE PLAN

SAFETY & GROUND RULES

Hunting seasons may be open where you’re going. Wear blaze orange when sharing ground with hunters, stay on roads and trails after dark, and follow every posted rule, hour and sign-in requirement for the area. Carry water, a warm layer, a charged phone and a headlamp. Leave no trace; take every scrap of tape and paper home. This outing involves no firearms, but if you carry one, follow your state’s laws and regulations. Possibles is education and recreation; you are responsible for your own judgement in the field.

SITTING V · THE LEDGER · 15 MIN

Plate I. Yours to keep.

Every outing ends with a plate for your Ledger: a record of something you actually did, beside the field-log card you filled in out there. Print it on good paper. A year from now you’ll have twelve outings you can hold in your hand.

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THE POSSIBLES LEDGER · PLATE I
Of the Pole Star
An observation made with an instrument of the observer’s own making
Be it recorded that ________________, at ________________ on the night of ________________, found true north by the stars and so fixed their place upon the Earth at
— ° NORTH
Hollis WrenQUARTERMASTER
No. PX-01-0000
NEXT MONTH · FIELD OUTING No. 2

Sign & Saddle

A daylight scout. Learn to read rubs, scrapes, trails and beds, find the saddles and benches where the land funnels game, and build a pocket pace-count tally to map them. Plus: Fenn’s chain was not true. Nor, it seems, was Fenn.