Guides & explainers
The reasoning behind the tools. How percentages actually work, what a loan really costs, why BMI misleads, and how to pick a password that holds up. Written to answer the question, then get out of the way.
Health How Much Sleep Do Adults Need by Age?
Seven to nine hours for most adults, seven to eight after 65. The need does not fall much with age, but the ability to get it does. What the guidance says and why.
Health How Much Water Should I Actually Drink a Day?
The eight glasses rule has no clear source. UK guidance is six to eight cups of any fluid, food included. Here is what the number means and when to drink more.
Explainers How Do I Compress a Photo for Email?
A phone photo is 3 to 6 MB, and most mailboxes cap attachments at 20 to 25 MB. Resize to 1,600 pixels wide and save at 80 percent JPEG quality for a file under 500 K.
Cooking How Do I Convert Oven Temperatures Between Fan, Gas and Conventional?
Fan ovens run about 20°C lower than conventional for the same result. Gas marks map to fixed temperatures. A quick table and the reasons the conversions are approximate.
Money How Do You Split Bills Fairly When You Earn Different Amounts?
Splitting 50/50 is simple and, on unequal incomes, quietly unfair. Proportional splitting matches contributions to earnings. Here is how, and where it gets complicated.
Explainers How Do I Take a Screenshot on Any Device?
Windows, Mac, iPhone, Android and Chromebook each use a different shortcut. All of them in one place, plus how to capture part of the screen and where the file ends.
Security How Do I Tell If an Email Is a Scam?
Urgency, a mismatched sender address, a link to a site that is not quite the real one, and a request for a payment or a password.
Home How Do I Work Out the Square Metres of a Room?
Multiply length by width in metres for a rectangle. For L-shapes and alcoves, split the room into rectangles and add them. What to measure and how much extra to order.
Money Is Buying in Bulk Actually Cheaper?
Bulk buying saves money on things you use at a steady rate and lose money on things that expire, spoil or stop appealing. The unit price tells you which is which.
Home Which Is Cheaper, Gas or Electric Cooking?
Gas is cheaper per unit of energy but wastes more of it as heat around the pan. Induction is the most efficient electric option. Here is what the numbers say per meal and per year.
Health Is It Bad to Eat Late at Night?
Calories at 10pm are not more fattening than calories at 6pm, but late eating changes sleep, appetite and what people choose. What the evidence actually shows.
Health Is Walking Enough Exercise?
Brisk walking meets the aerobic half of the adult activity guideline entirely. It does not cover strength, which the guideline also asks for. What walking does and what it misses.
No articles match that search.
Showing 49–60 of 144 articles