Comprehensible input in English

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The number on each thumbnail is its difficulty score out of 100: mostly speaking pace, partly vocabulary load. How it is measured →

74/10024:44Why Utah is So WeirdC1-C2 · ~11,000 words · fastWendover Productions74/10016:57How the Germans Measured Milliseconds MECHANICALLY - Smarter Every Day 283B2-C1 · ~5,000 words · fastSmarterEveryDay74/10029:03AUTOThe Wildest Take-Off of My LifeB2-C2 · ~9,000 words · fastReal Engineering74/10010:13The Terrifying Physics of Shaking Hands With an AlienB2-C2 · ~9,000 words · fastSciShow74/10015:32How To Install a Pipeline Under a RailroadB2-C2 · ~8,000 words · fastPractical Engineering74/10018:43You (likely) don't understand how a sewing machine worksB2-C1 · ~6,000 words · fastVeritasium74/10030:35The Day the Dinosaurs DiedC1-C2 · ~12,000 words · fastSciShow74/10028:19Ho'omau: Joey's Journey | National GeographicB1-B2 · ~4,000 words · fastNational Geographic74/10014:41Ranking the Strongest & Weakest Submarine FleetsB2-C1 · ~6,000 words · fastJohnny Harris74/10044:15How AI & Physics Are Unlocking the Truth (Full Episode) | UFOs: Investigating the Unknown | Nat GeoB2-C2 · ~7,000 words · fastNational Geographic74/10011:17The simple, clever sensor behind automatic windshield wipersB2-C2 · ~8,000 words · fastTechnology Connections74/10027:15How Do Night Vision Goggles Work?B2-C2 · ~9,000 words · fastVeritasium74/10031:18AUTOSolar Farms in Space - Reflect OrbitalB2-C2 · ~8,000 words · fastReal Engineering74/10027:02Making Film Reveal its Image: the B&W Development Process (Photography Part 2)B2-C2 · ~8,000 words · fastTechnology Connections74/10016:52AUTOYikes.B2-C2 · ~7,000 words · fastColdFusion74/10019:51AUTOThe Huge Controversy Over Moving This Runway 80 FeetC1-C2 · ~11,000 words · fastWendover Productions74/1007:40There Are Two Types of BoredomB2-C1 · ~9,000 words · fastSciShow74/10015:44There Are Too Many Ways to Make a MummyB2-C2 · ~9,000 words · fastSciShow74/10018:34AUTONFTs Are Now Almost Worth NothingB2-C2 · ~8,000 words · fastColdFusion74/10010:54When Your Body Attacks Itself – AutoimmuneB2-C2 · ~10,000 words · fastKurzgesagt – In a Nutshell74/10015:11Do people understand the scale of the universe?B1-B2 · ~5,000 words · fastVeritasium74/10017:42The Physics Behind the Thumb TrickB2-C2 · ~8,000 words · fastPractical Engineering74/10019:10How Liquid Dampers in Skyscrapers WorkB2-C2 · ~10,000 words · fastPractical Engineering74/10023:04World's Strongest Magnet!C1-C2 · ~9,000 words · fastVeritasium

Which English channel to start with

Ranked by median difficulty, easiest first. The bar is a range, not a label — a channel typically spans a wide stretch of the scale, so one level would be false for its own hardest videos.

6 of these 7 channels carry the same vocabulary band (B1-B2), and their scores still run from 0 to 88. That gap is pace: what separates the easiest of these channels from the hardest is how fast people talk, not which words they use. How that is measured →