https://aivoken.com weekly 1 https://aivoken.com/text-to-explainer-video monthly 0.8 https://aivoken.com/pricing weekly 0.9 https://aivoken.com/terms yearly 0.3 https://aivoken.com/privacy yearly 0.3 https://aivoken.com/learn 2026-11-01 weekly 0.9 https://aivoken.com/learn/science 2026-10-27 weekly 0.8 https://aivoken.com/learn/money 2026-11-01 weekly 0.8 https://aivoken.com/learn/how-things-work 2026-10-27 weekly 0.8 https://aivoken.com/learn/history 2026-10-27 weekly 0.8 https://aivoken.com/learn/technology 2026-10-27 weekly 0.8 https://aivoken.com/learn/body 2026-10-27 weekly 0.8 https://aivoken.com/learn/mind 2026-10-28 weekly 0.8 https://aivoken.com/learn/series/seven-deadly-sins 2026-10-28 weekly 0.8 https://aivoken.com/learn/series/great-books 2026-10-27 weekly 0.8 https://aivoken.com/learn/series/modern-world 2026-10-27 weekly 0.8 https://aivoken.com/learn/series/everyday-questions 2026-10-27 weekly 0.8 https://aivoken.com/learn/series/big-ideas-in-science 2026-10-27 weekly 0.8 https://aivoken.com/learn/series/inventions 2026-10-25 weekly 0.8 https://aivoken.com/learn/money/nobody-can-predict-this-ball 2026-11-01 0.8 https://aivoken.com/samples/ball.jpg Nobody can predict this ball One ball through a board of pegs is pure chance, yet a thousand always pile into the same mountain. Here is why, and why casinos never worry. https://aivoken.com/films/ball/index.html 95 https://aivoken.com/learn/mind/why-almost-everyone-thinks-theyre-above-average 2026-10-28 0.8 https://aivoken.com/samples/pride.jpg Pride: why almost everyone thinks they're above average 93% of US students put their driving in the top half, yet only half of any group can be there. A few very low scores also pull the average down. https://aivoken.com/films/pride/index.html 100 https://aivoken.com/learn/technology/how-does-the-internet-work 2026-10-27 0.8 https://aivoken.com/samples/internet.jpg How does the internet work? A page crosses the internet as numbered packets. Routers pass each one a hop at a time, around broken links; your device sorts them and asks for lost ones. https://aivoken.com/films/internet/index.html 93 https://aivoken.com/learn/money/what-is-inflation 2026-10-27 0.8 https://aivoken.com/samples/inflation.jpg What is inflation? Inflation is the average rise in prices, measured by repricing one basket of goods. At 3% a year, $100 of cash buys about $74 of today’s goods in ten years. https://aivoken.com/films/inflation/index.html 100 https://aivoken.com/learn/body/why-do-we-sleep 2026-10-27 0.8 https://aivoken.com/samples/sleep.jpg Why do we sleep? Sleep runs in cycles of about 90 minutes, with deep sleep early and REM later. Pressure from being awake and a 24-hour body clock set when you sleep. https://aivoken.com/films/sleep/index.html 100 https://aivoken.com/learn/how-things-work/how-does-electricity-flow 2026-10-27 0.8 https://aivoken.com/samples/electric.jpg How does electricity flow? The light comes on at once, yet each electron in the wire crawls at 0.04 mm a second. What travels fast is the push, shared round the whole loop. https://aivoken.com/films/electric/index.html 116 https://aivoken.com/learn/history/sun-tzus-art-of-war 2026-10-27 0.8 https://aivoken.com/samples/artofwar.jpg Sun Tzu's Art of War: count before you fight Sun Tzu's arithmetic of war: 100,000 men, 1,000 ounces of silver a day, one captured cart worth twenty of your own, and the ratio that decides each move. https://aivoken.com/films/artofwar/index.html 100 https://aivoken.com/learn/history/machiavellis-the-prince 2026-10-27 0.8 https://aivoken.com/samples/prince.jpg Machiavelli's The Prince: fortune is a river Machiavelli gave fortune half our actions and compared her to a flood: the same river that sweeps the plain passes harmlessly where banks were built in time. https://aivoken.com/films/prince/index.html 100 https://aivoken.com/learn/history/platos-cave 2026-10-27 0.8 https://aivoken.com/samples/cave.jpg Plato's cave: why shadows fool us Plato's cave, with the geometry of its shadows: a figure carried nearer the fire throws a bigger shadow. Then the climb to the sun and the return to the dark. https://aivoken.com/films/cave/index.html 100 https://aivoken.com/learn/money/adam-smiths-invisible-hand 2026-10-27 0.8 https://aivoken.com/samples/smith.jpg Adam Smith's invisible hand, explained Adam Smith's pin factory, computed: ten workers sharing 18 operations made 48,000 pins a day. Then the baker's self-interest and the invisible hand. https://aivoken.com/films/smith/index.html 100 https://aivoken.com/learn/history/marcus-aurelius-meditations 2026-10-27 0.8 https://aivoken.com/samples/stoic.jpg Marcus Aurelius' Meditations: the present is all you can lose Marcus Aurelius lived 21,510 days, under 2% of the three thousand years he imagined. Yet he argued the longest and shortest lives lose the same: the present. https://aivoken.com/films/stoic/index.html 100 https://aivoken.com/learn/science/how-natural-selection-works 2026-10-27 0.8 https://aivoken.com/samples/darwin.jpg How natural selection works Natural selection in four steps: variation is inherited, more are born than survive, the fittest pass the filter, and deep time draws the tree of life. https://aivoken.com/films/darwin/index.html 100 https://aivoken.com/learn/history/orwells-1984 2026-10-27 0.8 https://aivoken.com/samples/orwell.jpg Orwell's 1984: how a cut becomes a rise In 1984 a chocolate ration cut from 30 g to 20 g is hailed as a rise, and boots at 43% of plan become 109% once Winston rewrites the forecast. https://aivoken.com/films/orwell/index.html 100 https://aivoken.com/learn/history/thoreaus-walden 2026-10-27 0.8 https://aivoken.com/samples/walden.jpg Thoreau's Walden: what a house really costs Thoreau priced his Walden cabin to the half cent: $28.12½, less than a year's student rent, against $800 and years of work for an average house. https://aivoken.com/films/walden/index.html 100 https://aivoken.com/learn/technology/how-a-neural-network-learns 2026-10-25 0.8 https://aivoken.com/samples/neural.jpg How a neural network learns A small network guesses which dots are blue, measures its error, passes it back and nudges every connection. Thousands of nudges later, it has found the rule. https://aivoken.com/films/neural/index.html 124 https://aivoken.com/learn/science/why-moving-clocks-run-slow 2026-10-25 0.8 https://aivoken.com/samples/relativity.jpg Why moving clocks run slow A clock made of light, sent past at 0.6 times light speed, ticks 4 times while ours ticks 5. GPS satellite clocks lose 7 µs a day this way. https://aivoken.com/films/relativity/index.html 116 https://aivoken.com/learn/science/how-a-black-hole-forms 2026-10-25 0.8 https://aivoken.com/samples/blackhole.jpg How a black hole forms A heavy star collapses when its fuel runs out. Squeeze the Sun to 6 km across and escaping it would take more than the speed of light. https://aivoken.com/films/blackhole/index.html 134 https://aivoken.com/learn/body/how-vaccines-train-your-immune-system 2026-10-25 0.8 https://aivoken.com/samples/vaccine.jpg How vaccines train your immune system A vaccine shows the immune system a harmless piece of a germ. The cell whose lock fits it wakes and divides, and some cells stay behind as memory. https://aivoken.com/films/vaccine/index.html 122 https://aivoken.com/learn/science/why-the-moon-has-phases 2026-10-25 0.8 https://aivoken.com/samples/moon.jpg Why the Moon has phases The Sun always lights half the Moon; its phases are the angle we see that half from, not Earth's shadow. One lap takes 27.3 days, a cycle 29.5. https://aivoken.com/films/moon/index.html 112 https://aivoken.com/learn/science/where-rain-comes-from 2026-10-25 0.8 https://aivoken.com/samples/rain.jpg Where rain comes from A raindrop is about 100 times wider than a cloud droplet, so it holds a million times the water. Drops join as they fall until they are heavy enough to rain. https://aivoken.com/films/rain/index.html 100 https://aivoken.com/learn/history/how-the-printing-press-changed-books 2026-10-25 0.8 https://aivoken.com/samples/press.jpg How the printing press changed books From hand-copied manuscripts to Gutenberg’s reusable metal type: how one invention made books cheaper and spread them across Europe. https://aivoken.com/films/press/index.html 100 https://aivoken.com/learn/money/how-compound-interest-grows 2026-10-24 0.8 https://aivoken.com/samples/keynote.jpg How compound interest grows At an example 7% a year, $1,000 becomes $7,612 in 30 years. $4,512 of it is interest earned on interest; simple interest stops at $3,100. https://aivoken.com/films/keynote/index.html 106 https://aivoken.com/learn/science/why-is-the-sky-blue 2026-10-24 0.8 https://aivoken.com/samples/whiteboard.jpg Why is the sky blue? Air knocks blue light aside about 6 times as often as red, so blue reaches you from all over the sky. At sunset the blue is gone before it arrives. https://aivoken.com/films/whiteboard/index.html 106 https://aivoken.com/learn/how-things-work/the-law-of-the-lever 2026-10-24 0.8 https://aivoken.com/samples/blueprint.jpg The law of the lever A lever balances when force × distance from the pivot is equal on both sides. 100 N lifts 400 N, but it must push four times as far: the work is the same. https://aivoken.com/films/blueprint/index.html 106 https://aivoken.com/learn/history/leonardos-aerial-screw 2026-10-24 0.8 https://aivoken.com/samples/davinci.jpg Leonardo’s aerial screw Leonardo’s 1480s aerial screw: a spiral linen sail about 5 m in radius. Momentum theory gives an ideal power of about 1.45 kW to lift a 75 kg person. https://aivoken.com/films/davinci/index.html 100