| 401. | What Causes Cramp and How To Cure It | Earth Lab | 1,089 | Guide |
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| 402. | Why Is Earth Spinning Faster? | Space Mysteries | BBC Earth Lab | 1,089 | |
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| 403. | Do Dolphins Sleep? | Greg Foot Answers Your Question | Head Squeeze | 1,085 | Let's Play |
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| 404. | Ultrasound Treatment Stops Parkinson’s Tremor | Earth Lab | 1,080 | |
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| 405. | Will You Survive This Fall? | Earth Lab | 1,072 | |
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| 406. | What are Goosebumps? | Greg Foot | Head Squeeze | 1,068 | |
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| 407. | How do you smell? | Greg Foot | In association with Febreze | Head Squeeze | 1,068 | |
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| 408. | Where Does Your Poop Go? | Earth Lab | 1,063 | |
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| 409. | Geek Week | James May has farted in a space suit! | Q&A Extras | Head Squeeze | 1,062 | |
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| 410. | Can Proteins kill you? | Earth Lab | 1,058 | |
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| 411. | The Secret Behind Jupiter's Northern Lights | Space Mysteries | BBC Earth Lab | 1,058 | |
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| 412. | The Effect Of Caffeine On Your Heart | Earth Lab | 1,055 | | Caffeine
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| 413. | Can You Live With Half A Brain? | Earth Lab | 1,055 | |
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| 414. | What is 250,000 times hotter than the Sun? | Sci Guide with Martin Archer | Head Squeeze | 1,050 | Guide |
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| 415. | The First Electric Motor | Earth Lab | 1,045 | |
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| 416. | Did We INVENT Time? | BBC Earth Lab | 1,042 | |
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| 417. | Finding the Super Tasters | Horizon: The Truth about Taste | Earth Lab | 1,041 | |
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| 418. | "Cloud in a Bottle" & other cool science tricks | Live Experiments (Ep 37) | Head Squeeze | 1,035 | |
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| 419. | 5 Fascinating Missions in Space | Planet Explorers: Full Series | BBC Earth Science | 1,128 | |
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| 420. | How Does Plankton Move? | Richard Hammond's Invisible Worlds | Earth Lab | 1,032 | |
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| 421. | What Shape Is A Rain Drop? | Earth Lab | 1,030 | | Rain Drops
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| 422. | Heavy vs Light Weightlifting - Which Is Better for You? | Earth Lab | 1,029 | |
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| 423. | World's First Lab Grown Beef! | Dara O Briain's Science Club | Earth Lab | 1,027 | |
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| 424. | How Well Do You Know Our Planets? 🪐 | 1,027 | |
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| 425. | Extra Scenes! James May Explains Boomerangs | Earth Lab | 1,027 | |
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| 426. | What is Nanotechnology? | Sci Guide (Ep 36) w/ Mark Champkins | Head Squeeze | 1,020 | Vlog |
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| 427. | Can we see the ISS with the naked eye? | Martin Archer | Ask Head Squeeze | 1,017 | |
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| 428. | AMAZING brain facts! | Number Hub (Ep 23) | Head Squeeze | 1,017 | |
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| 429. | How Big Is the Universe? | Your Cosmos | Earth Lab | 1,017 | |
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| 430. | Is Our Solar System Shaped Like A Croissant? | Universe Explorers | BBC Earth Lab | 1,016 | |
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| 431. | Are Branded Drugs Better? | Earth Lab | 1,013 | |
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| 432. | Why Does Coffee Keep You Awake? | Earth Lab | 1,008 | |
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| 433. | Do You NEED Vitamin Supplements | Earth Lab | 1,007 | |
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| 434. | How to Freeze Light | Sci Guide | Martin Archer | Earth Lab | 1,004 | Guide | Martin
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| 435. | What Is Déjà Vu? | Earth Lab | 995 | |
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| 436. | 40 Minutes Of Weird Science Theories | Full Series | BBC Earth Lab | 993 | |
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| 437. | Is There Poo Everywhere? | Earth Lab | 988 | |
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| 438. | Bacteria vs Viruses: The Difference and How to Fight them | Earth Lab | 988 | Guide |
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| 439. | How To Stop Snoring | Earth Lab | 987 | Guide |
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| 440. | How to pay off one trillion dollars | Number Hub (Ep 19) | Head Squeeze | 984 | Guide |
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| 441. | What Happens to Babies' Brains when You Speak Parentese? | Babies: Their Wonderful World | Earth Lab | 984 | |
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| 442. | Are We Wrong About Our Universe? | Science's Greatest Mysteries | BBC Science | 1,124 | |
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| 443. | Are Probiotics Good for You? | Earth Lab | 975 | |
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| 444. | Could Terminator Happen? | BRITLAB | 975 | | Terminator 2: Judgment Day
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| 445. | Could We Live Forever? | Earth Lab | 971 | |
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| 446. | What Happens When You Don't Brush Your Teeth? | Earth Lab | 971 | |
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| 447. | Are Women Colder Than Men? | Earth Lab | 963 | |
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| 448. | How Dirty Is Your Meat? | Earth Lab | 956 | |
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| 449. | Food Additives Explained | Bang Goes The Theory | Earth Lab | 954 | |
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| 450. | How Supermarkets get Fruit to Ripen Faster | Earth Lab | 954 | |
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| 451. | Alexander Graham Bell's Telephone Prototype | The Genius Of Invention | Earth Lab | 951 | |
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| 452. | Steam Cannon | 10x Energy of AK47 | Earth Lab | 951 | |
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| 453. | Barbecueing Steak With Chemistry | Earth Lab | 948 | |
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| 454. | Re-Booted | Head Squeeze is BACK! | Head Squeeze | 947 | |
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| 455. | Pacific Rim Debunked | Giant Robots Vs. Monsters | Sci Guide (Ep 26) | Head Squeeze | 945 | Guide |
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| 456. | Building a Flying Bicycle (Part 2) | Earth Lab | 945 | |
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| 457. | How to Make Free Fuel! | Bang Goes the Theory | Earth Lab | 943 | |
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| 458. | Why do jellyfish sting? | Greg Foot | Head Squeeze | 936 | |
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| 459. | How Do We Stop Climate Change? | Earth Lab | 936 | |
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| 460. | Would Life Exist Without Black Holes? | Universe | Earth Lab | 933 | |
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| 461. | Do old people snore more? | James May Q&A Extras (Ep 38) | Head Squeeze | 932 | |
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| 462. | Are Brazil Nuts Radioactive? | Earth Lab | 931 | |
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| 463. | Should We Live on Mars? | World Changing Ideas | BRITLAB | 929 | |
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| 464. | Why is the Sky Blue and a Sunset Red? | Greg Answers your Questions | Head Squeeze | 928 | |
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| 465. | How to find North | Live Experiments with Huw James | Head Squeeze | 928 | Guide |
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| 466. | Searching For Life On Jupiter's Moon, Europa | Moon Explorers | BBC Earth Lab | 927 | |
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| 467. | Laser Gun Experiment | Earth Lab | 925 | |
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| 468. | How Do Ejection Seats Work? | Earth Lab | 925 | |
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| 469. | Is Red Wine Good for You? | Earth Lab | 921 | |
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| 470. | Exercise vs Blood Sugar | Earth Lab | 916 | |
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| 471. | How to survive a volcanic eruption | Survival Science with Huw James | Head Squeeze | 915 | Guide |
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| 472. | A £250,000 burger? | Greg Foot | Head Squeeze | 912 | |
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| 473. | Which is best: lighter bike or leaner body? (With GCN) | Greg Answers (Ep 8) | Head Squeeze | 909 | |
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| 474. | Bed Bug's Bite - Up Close! | Earth Lab | 907 | |
|
| 475. | Making Bridges Out Of Paper?! | Earth Lab | 907 | |
|
| 476. | Is Glass Really Made from Sand? EXTRAS | James May's Q&A | Head Squeeze | 905 | |
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| 477. | Is There Alien Life On Venus? | Planet Explorers | BBC Earth Lab | 905 | |
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| 478. | Space Myths Debunked | Earth Lab | 904 | |
|
| 479. | What's the difference between clay and grass court tennis? | Sci Guide (Ep 29) | Head Squeeze | 900 | Guide |
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| 480. | Why Do We Sneeze? (In Slow Motion!) | Earth Lab | 900 | |
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| 481. | The Origin Of Life | Cell | BBC Science | 974 | |
|
| 482. | How do you get to the ISS? | Sci Guide (Ep 22) | Head Squeeze | 891 | Guide |
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| 483. | Could You Power Your Own Commute? | Living Off Grid with Maddie Moate | Earth Lab | 890 | |
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| 484. | How Do Genes Work? | James May's Things You Need To Know | Earth Lab | 881 | |
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| 485. | Giant Asteroids Form Earth's First Tectonic Plates | Earth | Earth Lab | 880 | |
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| 486. | Live: Exploring the Wonders of our Solar System | The Planets | BBC Earth Science | 2,252 | |
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| 487. | Early Data Encryption Software | Tomorrow's World | Earth Lab | 873 | |
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| 488. | Clouds That Look Like UFOs? Weird Clouds | Earth Lab | 872 | |
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| 489. | What is Chemotherapy? | Earth Lab | 871 | |
|
| 490. | How big is the solar system? I Sci Guide with Martin Archer I Head Squeeze | 869 | Guide |
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| 491. | Is Eating Insects Good For You? | Earth Lab | 867 | |
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| 492. | PONG Played By A Crowd | Bang Goes The Theory | Earth Lab | 867 | |
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| 493. | Are Artificial Sweeteners Bad for You? | Earth Lab | 866 | |
|
| 494. | Generate electricity using body heat | Live Experiments (Ep 46) | Head Squeeze | 866 | |
|
| 495. | Science tricks to solve at home | Live Experiments (Ep 34) | Head Squeeze | 865 | |
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| 496. | Radar is pretty boring I James May Q&A Extras I Head Squeeze | 864 | |
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| 497. | How Trees Talk to Each Other | Your Climate | BBC Earth Lab | 863 | |
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| 498. | How can we get energy from a lemon? | Live Experiments | Head Squeeze | Earth Lab | 862 | |
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| 499. | Is a PAPER Frying Pan possible? | Earth Lab | 858 | |
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| 500. | World's Weirdest Science Studies | BRITLAB | 857 | |
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