All articles
Narrower questions than the guides answer, published one at a time rather than in a batch. Each carries the date it went out.
Is My Rock Valuable? An Honest AnswerMost rocks are worth nothing, and that is fine. Here is what actually creates value in a specimen, the handful of finds worth pursuing, and how to get a real appraisal.
The Mohs Hardness Test With Things You Already OwnHow to run a reliable hardness test using a fingernail, a copper coin, a steel knife and a piece of glass — including the three mistakes that give false readings.
The Streak Test: The Most Underused Tool in IdentificationThe streak test takes five seconds and settles questions that colour cannot. How to do it properly, what each streak colour narrows to, and when it will not work.
There's a Snake in My Yard. Now What?What to do about a snake in the yard, garage or house — including why removal attempts cause most bites, and what actually stops snakes coming back.
Snakebite First Aid: What to Do and What Makes It WorseThe current first aid guidance for a US snakebite — and why cutting, sucking, ice and tourniquets all cause harm. Written for the twenty minutes before help arrives.
Do Brown Recluses Live Where You Do? Probably NotBrown recluses live in a small part of the United States, and are absent from California, Florida, the Pacific Northwest and the northeast — despite constant reports.
The Daddy Long-Legs Myth, and the Three Animals It Refers ToThe claim that daddy long-legs have the world's most powerful venom but fangs too short to bite is wrong twice over — and it is applied to three completely different animals.
Why Are My Plant's Leaves Turning Yellow? Start With WhereYellow leaves have at least seven common causes. Which leaves yellowed — oldest or newest — and whether the veins stayed green narrows it to one or two immediately.
When Not to Spray: Most Plant Problems Fix ThemselvesFungicides do nothing against pests, nutrients or watering faults — and most garden damage is cosmetic. A short guide to when treatment helps and when it just costs money.
Is It Even Mould? Four Things That Aren'tWhite crust on basement walls, pink slime in the shower, black lines on the ceiling — three of the most common mould reports are not mould. Each has a ten-second test.
Removing Mould: What Works, and Why Bleach Usually Isn't ItCleaning the growth without fixing the moisture is why mould comes back. What to use on which surface, what to throw away, and where the DIY limit sits.

