| 401. | Build It: Wiffle-Ball Pitcher | 238 | |
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| 402. | These adults race modified children's toys | 246 | |
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| 403. | Can naked mole rats solve autism, epilepsy, and schizophrenia? || EXPERIMENTALS: Moles (part 1) | 251 | |
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| 404. | Incredible Photos of the Planets in Our Solar System | 255 | |
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| 405. | Is Corn a Fruit, Vegetable, or Grain? | 257 | |
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| 406. | ASMR, dinosaurs, quietest place on Earth, Batman & interstellar vibrations || Sounds of the Universe | 260 | |
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| 407. | Rubik's Cube Solved in .305 Seconds | 302 | |
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| 408. | How to get a 45-day-aged steak in only 48 hours: Cooking with koji (and science!) | 274 | Guide |
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| 409. | What is a fractal? A lens to infinity || EXPERIMENTALS: Nautiluses (part 2) | 277 | |
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| 410. | The Science of the World's Spiciest Chip | 283 | |
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| 411. | Why Do You Need 8 Hours of Sleep? | 285 | |
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| 412. | PopSci Test Drive: Lamborghini Reventon | 286 | |
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| 413. | The Truth About Bald Eagles | 288 | |
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| 414. | Ancient brain, fractals are everywhere, the lost first underwater film || EXPERIMENTALS: Nautiluses | 294 | |
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| 415. | Flying in an Air Force F-16 | I PUKED 3 TIMES 🤮 | 307 | |
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| 416. | This lion defied the laws of nature—and became an icon | L.A.‘s Lion King || Wild Lives Ep. 1 | 323 | |
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| 417. | How to Make a World-Record-Breaking Paper Airplane | 331 | Guide |
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| 418. | Siri talks to HAL 9000 about A.I. sexism | 332 | |
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| 419. | 5 Ways We Know Humans Went to the Moon | 332 | |
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| 420. | The Perfect French Fry, According to Science (ft. Jet Tila) | 335 | Show | Counter-Strike: Source
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| 421. | 146 Years of Popular Science | 335 | |
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| 422. | Watch Centralia Disappear | 338 | |
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| 423. | The lost, first underwater film: "The Terrors of the Deep" || EXPERIMENTALS: Nautiluses (part 3) | 343 | |
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| 424. | What it's like to fly through Hurricane Florence | 354 | |
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| 425. | 6 Misconceptions About Conception and Abortion | 363 | |
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| 426. | Who Won the Space Race - U.S.A or U.S.S.R.? | 373 | |
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| 427. | This is What Wildfires Look Like from Space | 375 | |
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| 428. | Gotta Go, Asimo? | 376 | |
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| 429. | Build It: Fake Snow | 379 | |
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| 430. | PopSci 5-Minute Project: The Coffee Can Cellphone Booster | 396 | Let's Play |
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| 431. | Farming SNAKES for Food?!? | 424 | |
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| 432. | The Astronaut Who Crashed In The Bathroom | 555 | |
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| 433. | Mushrooms Might Save the World | 401 | |
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| 434. | How to Take the Best Photos with Your Smartphone | 421 | |
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| 435. | SpaceShipTwo | 429 | |
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| 436. | Sonic the Hedgehog is INSIDE YOU | 800 | | Sonic the Hedgehog
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| 437. | If The Sun Is Hot, How Is Outer Space Cold? | 456 | |
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| 438. | How to Make the Perfect Snowball | 466 | Guide | Snowball
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| 439. | What is a Horsepower? | 476 | |
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| 440. | An Asteroid Is Coming. Now What!? | 890 | |
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| 441. | How to Set Up Your Home Wi-Fi | 528 | Guide |
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| 442. | Why Do We Put Holes In Our Head? | 1,732 | |
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| 443. | Cats Want FAP. | 585 | |
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| 444. | Rebuild: Cook Up Ultra-Strong Water Glass Instead Of Glue | 543 | | Rebuild
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| 445. | Asking Siri To Beatbox | 546 | |
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| 446. | The Stupid Age of Fake Radioactive Medicine | 671 | |
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| 447. | How to Make Rice Noodles (Using Science) | 562 | Tutorial |
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| 448. | The ONLY Snowmobile Allowed in Yellowstone | 585 | |
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| 449. | Earth's Gateway to Hell is Getting Bigger | 691 | Vlog |
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| 450. | What Will We Name the Solar System’s Next Planet? || PLANET X?? | 598 | | The Hitchhiker's Guide to the Galaxy
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| 451. | Ehang's Drone Copter Aims To Fly You Around -- CES 2016 | 626 | |
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| 452. | These Future Predictions were WRONG | 840 | |
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| 453. | Rebuild: Harvest Useful Parts From Old Electronics | 704 | | Rebuild
|
| 454. | The Science of Cute | 749 | |
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| 455. | The Wearable Motorcycle | 762 | |
|
| 456. | Teen Builds Nuclear Reactor | 774 | |
|
| 457. | Could You Eat So Much That Your Stomach Explodes? | 788 | |
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| 458. | The nautilus will make you rethink intelligence || EXPERIMENTALS: Nautiluses (part 1) | 794 | |
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| 459. | Coolest College Labs: Reed College Nuclear Reactor | 837 | |
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| 460. | What Happens if Earth Gets 2°C Warmer? | 850 | |
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| 461. | Where to live in America, 2100 A.D. | 923 | |
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| 462. | The Sand That (almost) Killed Millions | 1,851 | |
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| 463. | This Pet AR.Drone Will Follow You Like A Lost Puppy | 979 | |
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| 464. | How To Turn Any Gloves Into Touchscreen Gloves | 1,096 | Guide |
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| 465. | The Day We Made Frankenstein's Monster | 1,221 | |
|
| 466. | Sputnik-2 or: Laika, Our Hero | 1,231 | |
|
| 467. | Rebuild: Post-Apocalypse Coin Press | 1,271 | |
|
| 468. | 1,200 Square Feet Under the Sea | 1,278 | |
|
| 469. | Stephen Hawking's Great Sense of Humor | 1,407 | |
|
| 470. | How to Die in an Eco-Friendly Way | Green Death 101 | 1,623 | Guide |
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| 471. | The $580 Million Vinyl Movie Disaster (Selectavision) | 6,943 | |
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| 472. | The $2,000 FaceTime Box From 1987 (VisiTel Video Phone) | 2,259 | |
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| 473. | World's Largest Lego Model: A life-size X-wing fighter | 1,930 | |
|
| 474. | Can I Have A Pet Fox? | 2,153 | |
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| 475. | Rebuild: Chris Hackett's Solar Water Distillery | 2,262 | |
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| 476. | The Trash Computer That Became Your Phone | 7,566 | |
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| 477. | Five Ways You Can Tell for Yourself That the Earth is Not Flat | 2,777 | |
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| 478. | The Futuristic Toy Moms HATED (Captain Power) | 4,855 | | The Next Big Thing
|
| 479. | The Uncanny Valley | 5,146 | |
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| 480. | Alton Brown's Jet Cream | 5,756 | |
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| 481. | Alton Brown's Mega Bake | 5,887 | |
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| 482. | EXCLUSIVE: Stephen Hawking on What Existed Before the Big Bang | 6,219 | |
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| 483. | Bill Nye Responds to Anti-Science Tweets | 87,134 | |
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