https://50machines.com/guides/kiln-guide https://50machines.com/img/og/machines/01-kiln-en.jpg Build a pottery and brick kiln Fired clay makes pots, filters, crucibles and the firebrick every later furnace needs. https://50machines.com/video/loops/01-kiln.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/kiln-guide https://50machines.com/img/og/machines/01-kiln-es.jpg Construye un horno de cerámica y ladrillo El barro cocido da ollas, filtros, crisoles y el ladrillo refractario que necesitará cada horno posterior. https://50machines.com/video/loops-es/01-kiln.mp4?v=fb2c8c9e 5 2026-10-16T22:23:20Z https://50machines.com/guides/rocket-stove-guide https://50machines.com/img/og/machines/02-rocket-stove-en.jpg Build a rocket stove Boiling kills waterborne germs; a rocket stove does it on less wood than an open fire. https://50machines.com/video/loops/02-rocket-stove.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/rocket-stove-guide https://50machines.com/img/og/machines/02-rocket-stove-es.jpg Construye una estufa rocket Hervir el agua mata los gérmenes; una estufa rocket lo hace con menos leña que un fuego abierto. https://50machines.com/video/loops-es/02-rocket-stove.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/soap-guide https://50machines.com/img/og/machines/03-soap-en.jpg Make soap from ash Lye from wood ash and fat makes soap. Handwashing cuts diarrhoea by about 30%. https://50machines.com/video/loops/03-soap.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/soap-guide https://50machines.com/img/og/machines/03-soap-es.jpg Haz jabón con ceniza La lejía de ceniza de leña y la grasa dan jabón. Lavarse las manos reduce la diarrea en torno a un 30 %. https://50machines.com/video/loops-es/03-soap.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/biosand-guide https://50machines.com/img/og/machines/04-biosand-en.jpg Build a biosand water filter Sand and a living biofilm clean drinking water with no fuel at all. https://50machines.com/video/loops/04-biosand.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/biosand-guide https://50machines.com/img/og/machines/04-biosand-es.jpg Construye un filtro de bioarena Arena y una biopelícula viva limpian el agua de beber sin ningún combustible. https://50machines.com/video/loops-es/04-biosand.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/charcoal-guide https://50machines.com/img/og/machines/05-charcoal-en.jpg Build a charcoal kiln Charcoal burns hot and clean enough to smelt and forge metal. https://50machines.com/video/loops/05-charcoal.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/charcoal-guide https://50machines.com/img/og/machines/05-charcoal-es.jpg Construye un horno de carbón vegetal El carbón vegetal arde con calor y limpieza suficientes para fundir y forjar metal. https://50machines.com/video/loops-es/05-charcoal.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/lime-kiln-guide https://50machines.com/img/og/machines/06-lime-kiln-en.jpg Build a lime kiln Burnt limestone gives mortar, whitewash and a disinfectant. https://50machines.com/video/loops/06-lime-kiln.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/lime-kiln-guide https://50machines.com/img/og/machines/06-lime-kiln-es.jpg Construye un horno de cal La caliza calcinada da mortero, encalado y un desinfectante. https://50machines.com/video/loops-es/06-lime-kiln.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/rope-pump-guide https://50machines.com/img/og/machines/07-rope-pump-en.jpg Build a rope pump A loop of rope and washers lifts water with a hand crank. https://50machines.com/video/loops/07-rope-pump.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/rope-pump-guide https://50machines.com/img/og/machines/07-rope-pump-es.jpg Construye una bomba de cuerda Un lazo de cuerda con arandelas sube agua con una manivela. https://50machines.com/video/loops-es/07-rope-pump.mp4?v=a742447e 5 2026-10-16T22:23:20Z https://50machines.com/guides/glass-guide https://50machines.com/img/og/machines/08-glass-en.jpg Build a glass furnace Glass for jars, lenses, light bulbs and sight glasses. https://50machines.com/video/loops/08-glass.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/glass-guide https://50machines.com/img/og/machines/08-glass-es.jpg Construye un horno de vidrio Vidrio para tarros, lentes, bombillas y mirillas. https://50machines.com/video/loops-es/08-glass.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/forge-guide https://50machines.com/img/og/machines/09-forge-en.jpg Build a forge Air-blown charcoal welds and shapes iron into every tool that follows. https://50machines.com/video/loops/09-forge.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/forge-guide https://50machines.com/img/og/machines/09-forge-es.jpg Construye una fragua El carbón avivado con aire suelda y da forma al hierro de todas las herramientas que vienen después. https://50machines.com/video/loops-es/09-forge.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/foundry-guide https://50machines.com/img/og/machines/10-foundry-en.jpg Build a scrap metal foundry Remelts scrap aluminium and bronze into cast pulleys, gears and frames. https://50machines.com/video/loops/10-foundry.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/foundry-guide https://50machines.com/img/og/machines/10-foundry-es.jpg Construye una fundición de chatarra Refunde aluminio y bronce de chatarra en poleas, engranajes y bastidores. https://50machines.com/video/loops-es/10-foundry.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/wire-guide https://50machines.com/img/og/machines/11-wire-en.jpg Make copper wire Pulls copper rod through ever smaller holes into wire for coils and cables. https://50machines.com/video/loops/11-wire.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/wire-guide https://50machines.com/img/og/machines/11-wire-es.jpg Haz hilo de cobre Estira varilla de cobre por agujeros cada vez más pequeños hasta hacer hilo para bobinas y cables. https://50machines.com/video/loops-es/11-wire.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/pole-lathe-guide https://50machines.com/img/og/machines/12-pole-lathe-en.jpg Build a pole lathe The first machine tool: turns axles, handles and bearings round. https://50machines.com/video/loops/12-pole-lathe.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/pole-lathe-guide https://50machines.com/img/og/machines/12-pole-lathe-es.jpg Construye un torno de pértiga La primera máquina herramienta: tornea ejes, mangos y cojinetes. https://50machines.com/video/loops-es/12-pole-lathe.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/metal-lathe-guide https://50machines.com/img/og/machines/13-metal-lathe-en.jpg Build a metal lathe A lathe that helps build itself, then the shaper, mill and drill press. https://50machines.com/video/loops/13-metal-lathe.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/metal-lathe-guide https://50machines.com/img/og/machines/13-metal-lathe-es.jpg Construye un torno para metal Un torno que ayuda a construirse a sí mismo, y después la limadora, la fresadora y el taladro de columna. https://50machines.com/video/loops-es/13-metal-lathe.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/line-shaft-guide https://50machines.com/img/og/machines/14-line-shaft-en.jpg Build a line shaft workshop Carries one water wheel's power to every machine in a workshop. https://50machines.com/video/loops/14-line-shaft.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/line-shaft-guide https://50machines.com/img/og/machines/14-line-shaft-es.jpg Monta un taller con eje de transmisión Lleva la fuerza de una sola rueda hidráulica a todas las máquinas de un taller. https://50machines.com/video/loops-es/14-line-shaft.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/water-wheel-guide https://50machines.com/img/og/machines/15-water-wheel-en.jpg Build a water wheel An overshot wheel keeps most of the water's power: the first big engine. https://50machines.com/video/loops/15-water-wheel.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/water-wheel-guide https://50machines.com/img/og/machines/15-water-wheel-es.jpg Construye una rueda hidráulica Una rueda de alimentación superior aprovecha casi toda la fuerza del agua: el primer gran motor. https://50machines.com/video/loops-es/15-water-wheel.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/wind-pump-guide https://50machines.com/img/og/machines/16-wind-pump-en.jpg Build a wind pump The multi-blade windmill pumps water with no fuel at all. https://50machines.com/video/loops/16-wind-pump.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/wind-pump-guide https://50machines.com/img/og/machines/16-wind-pump-es.jpg Construye un molino de bombeo El molino multipala bombea agua sin ningún combustible. https://50machines.com/video/loops-es/16-wind-pump.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/grain-mill-guide https://50machines.com/img/og/machines/17-grain-mill-en.jpg Build a water-powered grain mill Millstones on a water wheel grind as fast as about 40 hand querns: flour for hundreds of families. https://50machines.com/video/loops/17-grain-mill.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/grain-mill-guide https://50machines.com/img/og/machines/17-grain-mill-es.jpg Construye un molino hidráulico Unas muelas movidas por una rueda hidráulica muelen tanto como unas 40 muelas de mano: harina para cientos de familias. https://50machines.com/video/loops-es/17-grain-mill.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/olive-guide https://50machines.com/img/og/machines/18-olive-en.jpg Build an olive oil mill Stone mill, mat press and settling tank: 300 kg of olives to about 50 L of oil. https://50machines.com/video/loops/18-olive.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/olive-guide https://50machines.com/img/og/machines/18-olive-es.jpg Construye una almazara Molino de piedra, prensa de capachos y decantador: de 300 kg de aceituna, unos 50 L de aceite. https://50machines.com/video/loops-es/18-olive.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/ram-pump-guide https://50machines.com/img/og/machines/19-ram-pump-en.jpg Build a hydraulic ram pump Uses the water's own momentum to pump uphill, day and night, with no fuel. https://50machines.com/video/loops/19-ram-pump.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/ram-pump-guide https://50machines.com/img/og/machines/19-ram-pump-es.jpg Construye un ariete hidráulico Usa el propio impulso del agua para bombearla cuesta arriba, día y noche, sin combustible. https://50machines.com/video/loops-es/19-ram-pump.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/steam-engine-guide https://50machines.com/img/og/machines/20-steam-engine-en.jpg Build a steam engine Turns burning wood or coal into motion anywhere, not just beside a river. https://50machines.com/video/loops/20-steam-engine.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/steam-engine-guide https://50machines.com/img/og/machines/20-steam-engine-es.jpg Construye una máquina de vapor Convierte la leña o el carbón en movimiento en cualquier sitio, no solo junto a un río. https://50machines.com/video/loops-es/20-steam-engine.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/battery-guide https://50machines.com/img/og/machines/21-battery-en.jpg Build a battery Copper, zinc and an electrolyte make the first steady electric current. https://50machines.com/video/loops/21-battery.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/battery-guide https://50machines.com/img/og/machines/21-battery-es.jpg Construye una pila Cobre, zinc y un electrolito dan la primera corriente eléctrica estable. https://50machines.com/video/loops-es/21-battery.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/electromagnet-guide https://50machines.com/img/og/machines/22-electromagnet-en.jpg Build an electromagnet Wire wound on iron: the heart of motors, relays, telegraphs and dynamos. https://50machines.com/video/loops/22-electromagnet.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/electromagnet-guide https://50machines.com/img/og/machines/22-electromagnet-es.jpg Construye un electroimán Hilo enrollado sobre hierro: el corazón de motores, relés, telégrafos y dinamos. https://50machines.com/video/loops-es/22-electromagnet.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/power-guide https://50machines.com/img/og/machines/23-power-en.jpg Make electricity from a stream A water wheel geared 100:1 spins a car alternator and charges batteries. https://50machines.com/video/loops/23-power.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/power-guide https://50machines.com/img/og/machines/23-power-es.jpg Saca electricidad de un arroyo Una rueda hidráulica con multiplicación 100:1 hace girar un alternador de coche y carga baterías. https://50machines.com/video/loops-es/23-power.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/pm-alternator-guide https://50machines.com/img/og/machines/24-pm-alternator-en.jpg Build a permanent-magnet alternator Hand-wound coils and magnets: a generator you build instead of salvage. https://50machines.com/video/loops/24-pm-alternator.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/pm-alternator-guide https://50machines.com/img/og/machines/24-pm-alternator-es.jpg Construye un alternador de imanes permanentes Bobinas hechas a mano e imanes: un generador que fabricas en vez de rescatarlo. https://50machines.com/video/loops-es/24-pm-alternator.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/wind-turbine-guide https://50machines.com/img/og/machines/25-wind-turbine-en.jpg Build a wind turbine Hugh Piggott's design turns wind into 12–48 V power with hand tools. https://50machines.com/video/loops/25-wind-turbine.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/wind-turbine-guide https://50machines.com/img/og/machines/25-wind-turbine-es.jpg Construye un aerogenerador El diseño de Hugh Piggott convierte el viento en electricidad a 12–48 V con herramientas de mano. https://50machines.com/video/loops-es/25-wind-turbine.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/lead-acid-guide https://50machines.com/img/og/machines/26-lead-acid-en.jpg Build a lead-acid battery Lead sheets in acid store the day's power for the night. https://50machines.com/video/loops/26-lead-acid.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/lead-acid-guide https://50machines.com/img/og/machines/26-lead-acid-es.jpg Construye una batería de plomo-ácido Placas de plomo en ácido guardan la energía del día para la noche. https://50machines.com/video/loops-es/26-lead-acid.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/motor-guide https://50machines.com/img/og/machines/27-motor-en.jpg Build an electric motor A generator run backwards: pumps, fans and power tools anywhere. https://50machines.com/video/loops/27-motor.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/motor-guide https://50machines.com/img/og/machines/27-motor-es.jpg Construye un motor eléctrico Un generador al revés: bombas, ventiladores y herramientas eléctricas en cualquier parte. https://50machines.com/video/loops-es/27-motor.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/light-bulb-guide https://50machines.com/img/og/machines/28-light-bulb-en.jpg Make a light bulb A carbon filament in a vacuum. Carbonised bamboo lasted over 1,200 hours. https://50machines.com/video/loops/28-light-bulb.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/light-bulb-guide https://50machines.com/img/og/machines/28-light-bulb-es.jpg Haz una bombilla Un filamento de carbono en el vacío. El bambú carbonizado duraba más de 1.200 horas. https://50machines.com/video/loops-es/28-light-bulb.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/solar-panel-guide https://50machines.com/img/og/machines/29-solar-panel-en.jpg Make solar power Salvage panels first; a home-made selenium or copper-oxide cell proves the effect. https://50machines.com/video/loops/29-solar-panel.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/solar-panel-guide https://50machines.com/img/og/machines/29-solar-panel-es.jpg Saca energía del sol Primero, paneles rescatados; una célula casera de selenio u óxido de cobre demuestra el efecto. https://50machines.com/video/loops-es/29-solar-panel.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/micro-hydro-guide https://50machines.com/img/og/machines/30-micro-hydro-en.jpg Build a micro-hydro turbine A crossflow turbine copes with changing flow better than a wheel. https://50machines.com/video/loops/30-micro-hydro.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/micro-hydro-guide https://50machines.com/img/og/machines/30-micro-hydro-es.jpg Construye una microturbina hidráulica Una turbina de flujo cruzado se adapta a los cambios de caudal mejor que una rueda. https://50machines.com/video/loops-es/30-micro-hydro.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/chlorinator-guide https://50machines.com/img/og/machines/31-chlorinator-en.jpg Make chlorine from salt water Current through brine makes chlorine to disinfect drinking water. https://50machines.com/video/loops/31-chlorinator.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/chlorinator-guide https://50machines.com/img/og/machines/31-chlorinator-es.jpg Saca cloro del agua salada La corriente que atraviesa la salmuera produce cloro para desinfectar el agua de beber. https://50machines.com/video/loops-es/31-chlorinator.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/arc-welder-guide https://50machines.com/img/og/machines/32-arc-welder-en.jpg Build an arc welder Joins steel with current: tanks, frames and pressure vessels. https://50machines.com/video/loops/32-arc-welder.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/arc-welder-guide https://50machines.com/img/og/machines/32-arc-welder-es.jpg Construye un soldador de arco Une acero con corriente: depósitos, bastidores y recipientes a presión. https://50machines.com/video/loops-es/32-arc-welder.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/zeer-pot-guide https://50machines.com/img/og/machines/33-zeer-pot-en.jpg Build a zeer pot cooler Two clay pots and wet sand: evaporation keeps food cold with no power. https://50machines.com/video/loops/33-zeer-pot.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/zeer-pot-guide https://50machines.com/img/og/machines/33-zeer-pot-es.jpg Construye una nevera zeer Dos vasijas de barro y arena mojada: la evaporación mantiene fría la comida sin electricidad. https://50machines.com/video/loops-es/33-zeer-pot.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/ice-house-guide https://50machines.com/img/og/machines/34-ice-house-en.jpg Build an ice house Winter ice packed in sawdust lasts into the summer. https://50machines.com/video/loops/34-ice-house.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/ice-house-guide https://50machines.com/img/og/machines/34-ice-house-es.jpg Construye un pozo de hielo El hielo del invierno, prensado en serrín, dura hasta el verano. https://50machines.com/video/loops-es/34-ice-house.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/icyball-guide https://50machines.com/img/og/machines/35-icyball-en.jpg Build an Icyball refrigerator The Icyball: heat it on a flame, then it makes cold all day. No electricity. https://50machines.com/video/loops/35-icyball.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/icyball-guide https://50machines.com/img/og/machines/35-icyball-es.jpg Construye un frigorífico de absorción El frigorífico de absorción: se calienta en una llama y luego da frío todo el día. Sin electricidad. https://50machines.com/video/loops-es/35-icyball.mp4?v=acb89686 5 2026-10-16T22:23:20Z https://50machines.com/guides/solar-heater-guide https://50machines.com/img/og/machines/36-solar-heater-en.jpg Build a solar water heater A black box of pipes under glass: hot showers from the sun. https://50machines.com/video/loops/36-solar-heater.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/solar-heater-guide https://50machines.com/img/og/machines/36-solar-heater-es.jpg Construye un calentador solar de agua Una caja negra con tubos bajo un cristal: duchas calientes gracias al sol. https://50machines.com/video/loops-es/36-solar-heater.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/solar-cooker-guide https://50machines.com/img/og/machines/37-solar-cooker-en.jpg Build a solar cooker A glazed box with reflectors cooks and pasteurises. https://50machines.com/video/loops/37-solar-cooker.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/solar-cooker-guide https://50machines.com/img/og/machines/37-solar-cooker-es.jpg Construye un horno solar Una caja acristalada con reflectores cocina y pasteuriza. https://50machines.com/video/loops-es/37-solar-cooker.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/gasifier-guide https://50machines.com/img/og/machines/38-gasifier-en.jpg Build a wood-gas generator Turns wood chips into a fuel gas that runs an engine. https://50machines.com/video/loops/38-gasifier.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/gasifier-guide https://50machines.com/img/og/machines/38-gasifier-es.jpg Construye un gasógeno Convierte astillas de madera en un gas combustible que mueve un motor. https://50machines.com/video/loops-es/38-gasifier.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/stirling-guide https://50machines.com/img/og/machines/39-stirling-en.jpg Build a Stirling engine An engine run by any outside heat, from a fire to a mirror in the sun. https://50machines.com/video/loops/39-stirling.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/stirling-guide https://50machines.com/img/og/machines/39-stirling-es.jpg Construye un motor Stirling Un motor que funciona con cualquier calor exterior, desde un fuego hasta un espejo al sol. https://50machines.com/video/loops-es/39-stirling.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/biogas-guide https://50machines.com/img/og/machines/40-biogas-en.jpg Build a biogas digester Manure and food scraps rot into cooking gas and fertiliser. https://50machines.com/video/loops/40-biogas.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/biogas-guide https://50machines.com/img/og/machines/40-biogas-es.jpg Construye un biodigestor El estiércol y los restos de comida se pudren y dan gas para cocinar y abono. https://50machines.com/video/loops-es/40-biogas.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/printing-press-guide https://50machines.com/img/og/machines/41-printing-press-en.jpg Build a printing press Paper, iron-gall ink and cast type copy knowledge fast. https://50machines.com/video/loops/41-printing-press.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/printing-press-guide https://50machines.com/img/og/machines/41-printing-press-es.jpg Construye una imprenta Papel, tinta ferrogálica y tipos fundidos copian el saber deprisa. https://50machines.com/video/loops-es/41-printing-press.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/pendulum-clock-guide https://50machines.com/img/og/machines/42-pendulum-clock-en.jpg Build a pendulum clock A pendulum cut clock error from about 15 minutes a day to 15 seconds. https://50machines.com/video/loops/42-pendulum-clock.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/pendulum-clock-guide https://50machines.com/img/og/machines/42-pendulum-clock-es.jpg Construye un reloj de péndulo El péndulo redujo el error de los relojes de unos 15 minutos al día a 15 segundos. https://50machines.com/video/loops-es/42-pendulum-clock.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/compass-guide https://50machines.com/img/og/machines/43-compass-en.jpg Make a magnetic compass A magnetised needle on a silk thread points north. https://50machines.com/video/loops/43-compass.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/compass-guide https://50machines.com/img/og/machines/43-compass-es.jpg Haz una brújula Una aguja imantada colgada de un hilo de seda señala el norte. https://50machines.com/video/loops-es/43-compass.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/microscope-guide https://50machines.com/img/og/machines/44-microscope-en.jpg Build a microscope A single glass bead magnifies enough to see microbes, the start of germ theory. https://50machines.com/video/loops/44-microscope.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/microscope-guide https://50machines.com/img/og/machines/44-microscope-es.jpg Construye un microscopio Una sola bolita de vidrio aumenta lo bastante para ver microbios: el inicio de la teoría microbiana. https://50machines.com/video/loops-es/44-microscope.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/telescope-guide https://50machines.com/img/og/machines/45-telescope-en.jpg Build a telescope Two lenses in a tube for navigation, surveying and the sky. https://50machines.com/video/loops/45-telescope.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/telescope-guide https://50machines.com/img/og/machines/45-telescope-es.jpg Construye un telescopio Dos lentes en un tubo para navegar, medir el terreno y mirar el cielo. https://50machines.com/video/loops-es/45-telescope.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/telegraph-guide https://50machines.com/img/og/machines/46-telegraph-en.jpg Build a telegraph A key, a battery and a wire send messages across a country at once. https://50machines.com/video/loops/46-telegraph.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/telegraph-guide https://50machines.com/img/og/machines/46-telegraph-es.jpg Construye un telégrafo Un manipulador, una pila y un cable envían mensajes de punta a punta de un país al instante. https://50machines.com/video/loops-es/46-telegraph.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/telephone-guide https://50machines.com/img/og/machines/47-telephone-en.jpg Build a telephone A carbon microphone carries the voice down the telegraph wire. https://50machines.com/video/loops/47-telephone.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/telephone-guide https://50machines.com/img/og/machines/47-telephone-es.jpg Construye un teléfono Un micrófono de carbón lleva la voz por el cable del telégrafo. https://50machines.com/video/loops-es/47-telephone.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/crystal-radio-guide https://50machines.com/img/og/machines/48-crystal-radio-en.jpg Build a crystal radio Hears broadcasts with no power at all: a coil, a crystal and an earphone. https://50machines.com/video/loops/48-crystal-radio.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/crystal-radio-guide https://50machines.com/img/og/machines/48-crystal-radio-es.jpg Construye una radio de galena Recibe emisoras sin ninguna alimentación: una bobina, un cristal y un auricular. https://50machines.com/video/loops-es/48-crystal-radio.mp4 5 2026-10-16T22:23:20Z https://50machines.com/guides/spark-radio-guide https://50machines.com/img/og/machines/49-spark-radio-en.jpg Build a spark-gap radio Sends Morse by radio. Marconi crossed the Atlantic with one. https://50machines.com/video/loops/49-spark-radio.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/spark-radio-guide https://50machines.com/img/og/machines/49-spark-radio-es.jpg Construye un transmisor de chispa Envía Morse por radio. Marconi cruzó el Atlántico con uno. https://50machines.com/video/loops-es/49-spark-radio.mp4?v=b0e02a33 5 2026-10-16T22:23:20Z https://50machines.com/guides/relay-computer-guide https://50machines.com/img/og/machines/50-relay-computer-en.jpg Build a relay computer Thousands of relays make a programmable computer. https://50machines.com/video/loops/50-relay-computer.mp4 5 2026-10-16T22:23:20Z https://50machines.com/es/guides/relay-computer-guide https://50machines.com/img/og/machines/50-relay-computer-es.jpg Construye un ordenador de relés Miles de relés forman un ordenador programable. https://50machines.com/video/loops-es/50-relay-computer.mp4 5 2026-10-16T22:23:20Z https://50machines.com/machine-51 https://50machines.com/img/og/machines/51-en.jpg Machine 51 · Mateo's marble machine Turn the crank: cups lift the marbles, they zigzag down, turn a wheel and ring a bell, again and again. https://50machines.com/video/reels/51-en.mp4 33 2026-10-16T12:35:21Z https://50machines.com/es/maquina-51 https://50machines.com/img/og/machines/51-es.jpg Máquina 51 · La máquina de canicas de Mateo Gira la manivela: las canicas suben, bajan en zigzag, mueven una rueda y tocan una campana sin parar. https://50machines.com/video/reels/51-es.mp4 33 2026-10-16T12:35:21Z https://50machines.com/ https://50machines.com/video/posters/hero-en-16x9-1280.webp 50 Machines The 50 machines, era by era, from fire and water to signals and computing. https://50machines.com/video/hero/en-16x9.mp4 72 2026-10-16T22:23:20Z https://50machines.com/img/og/machines/51-en.jpg Machine 51 · Mateo's marble machine Turn the crank: cups lift the marbles, they zigzag down, turn a wheel and ring a bell, again and again. https://50machines.com/video/reels/51-en.mp4 33 2026-10-16T12:35:21Z https://50machines.com/es/ https://50machines.com/video/posters/hero-es-16x9-1280.webp 50 Machines Las 50 máquinas, era a era, del fuego y el agua a las señales y el cálculo. https://50machines.com/video/hero/es-16x9.mp4 72 2026-10-16T22:23:20Z https://50machines.com/img/og/machines/51-es.jpg Máquina 51 · La máquina de canicas de Mateo Gira la manivela: las canicas suben, bajan en zigzag, mueven una rueda y tocan una campana sin parar. https://50machines.com/video/reels/51-es.mp4 33 2026-10-16T12:35:21Z