What Is an Algorithm?
An algorithm is a finite list of unambiguous steps for getting from an input to a result. A recipe is one. So is long division. Computers did not invent them and are not required to run them.
Clear explanations for the things you've always wondered about, written for a normal person rather than a specialist.
TechnologyThe internet is a set of agreements about how computers pass small chunks of data to each other. No single machine holds it, and nobody is in charge of it.
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An algorithm is a finite list of unambiguous steps for getting from an input to a result. A recipe is one. So is long division. Computers did not invent them and are not required to run them.
The joke is old and the reason is specific: fusion needs conditions that only exist inside stars, and building them on Earth costs more energy than the reaction has so far returned.
Tipping customs are not about generosity. They follow from who pays the server: where the employer covers the wage, tipping stays small, and where it does not, tipping becomes the wage.
Nobody knows for certain, and that is the honest answer. What is established is when dreaming happens, what the brain is doing at the time, and why you forget almost all of it.
Inflation is money losing purchasing power over time. The same note buys less than it did. The interesting question is not what it is but why economists want a little of it rather than none.
Subway tiles, filament bulbs, reclaimed wood and a monstera. The same café has appeared in eighty countries, and the reason is that photographs, not people, now do the travelling.
Procrastination is not poor time management and not laziness. It is avoidance of a feeling the task produces, and the delay works because it removes that feeling immediately.
A placebo has no active ingredient and still produces measurable change. Expectation is not imagination: it alters what the nervous system does, and the effect shows up on brain scans.
Nobody knows for certain, and that is the honest answer. What is established is when dreaming happens, what the brain is doing at the time, and why you forget almost all of it.
SPF measures protection against burning only, and the numbers are not proportional. SPF 30 blocks about 97 percent of UVB and SPF 50 about 98. The gap that matters is UVA, which SPF does not measure at all.
A microwave makes water molecules in your food flip back and forth billions of times a second. The friction of all that flipping is the heat. Nothing is irradiated and nothing cooks from the inside out.
A lithium-ion battery is a chemical system that wears out as it works. Every charge cycle costs a little capacity permanently, and heat costs far more than cycles do.