Comprehensible input in English

Find something to watch

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

66/10016:46AUTOThe Problem with Wind EnergyC1-C2 · ~13,000 words · fastReal Engineering66/10021:03Why Heat Pumps are Immensely Important Right NowB2-C2 · ~7,000 words · fastTechnology Connections66/10011:58You're More Stressed Than Ever - Let's Change ThatB2-C2 · ~9,000 words · fastKurzgesagt – In a Nutshell66/1004:46Why is it so dangerous to step on a rusty nail? - Louise ThwaitesC1-C2 · ~14,000 words · fastTED-Ed66/1004:48The deadliest thing in your kitchen - George ZaidanC1-C2 · ~13,000 words · fastTED-Ed66/10027:20Why Don’t Railroads Need Expansion Joints?C1-C2 · ~10,000 words · fastVeritasium66/10020:57AUTOThe Insane Engineering of Europa ClipperC1-C2 · ~11,000 words · fastReal Engineering66/10014:59How to Communicate with Your Dog, from a Westminster Champion | Jennifer Crank | TEDB2-C1 · ~5,000 words · fastTED66/10019:33This Gun Could Reach SpaceC1-C2 · ~14,000 words · fastReal Engineering66/10032:27The "standard" car charger is usually overkill—but your electrician might not know thatB2-C2 · ~8,000 words · fastTechnology Connections66/10012:22What’s It Like to Be Killed by Nature’s Most Brutal PredatorC1-C2 · ~11,000 words · fastKurzgesagt – In a Nutshell66/1009:47How to become a great singer | Think Like A MusicianC1-C2 · ~12,000 words · fastTED-Ed66/10011:27Trees Are So WeirdB2-C2 · ~7,000 words · fastKurzgesagt – In a Nutshell66/10027:58Bright from the Start: GE's CFL with an incandescent trick up its sleeveC1-C2 · ~13,000 words · fastTechnology Connections66/1001:11:11Ceiling fans: the simple idea we keep screwing upB2-C1 · ~6,000 words · fastTechnology Connections66/10021:54Geothermal Energy is Changing | Quaise Energy DocumentaryB2-C2 · ~9,000 words · fastReal Engineering66/10054:46The asbestos problem is worse than we thoughtC1-C2 · ~12,000 words · fastVeritasium66/10011:08Fever Feels Horrible, but is Actually Awesome!B2-C1 · ~7,000 words · fastKurzgesagt – In a Nutshell66/10016:34The Problem With Science CommunicationB2-C2 · ~9,000 words · fastVeritasium66/10013:06The Most Insane Megaproject You Never Heard AboutB2-C2 · ~9,000 words · fastKurzgesagt – In a Nutshell66/10058:53What happens if you drop 0.125 grams of antimatter?C1-C2 · ~15,000 words · fastVeritasium66/10022:50Why America’s Tank Failed in UkraineC1-C2 · ~11,000 words · fastReal Engineering66/10026:33The Most Underrated AlgorithmB2-C2 · ~11,000 words · fastVeritasium66/1005:27How comic books can help you learn - Gene Luen YangB1-C1 · ~7,000 words · fastTED-Ed

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.

3 of these 4 channels carry the same vocabulary band (B1-B2), and their scores still run from 0 to 86. 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 →