outdoors

2 posts.

Illustration: a rugged backpack surrounded by neatly laid-out gear: water bottle, first-aid kit, flashlight, knife, radio, fire starter and a folded tarp.

Sep 29, 2026

How to Build a Bug-Out Bag: The 72-Hour Checklist

What actually goes in a bug-out bag, organised by the rule of threes: shelter, water, fire, food, first aid, light, communication and documents. Includes an interactive packing list that totals your bag's weight.

how-to preparedness outdoors

Illustration: a person stands at a distance from a tall pine tree, with a dashed sight line to the treetop forming a right triangle with the ground.

Sep 29, 2026

How to Measure the Height of a Tree Without Climbing It

Three field methods: the stick trick, the shadow method, and the trigonometry of a phone clinometer. Each needs only a tape measure, and there's an interactive calculator to check your numbers.

how-to math outdoors