| 401. | Software business | Wikipedia audio article | 0 | |
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| 402. | Biodegradable electronics | Wikipedia audio article | 0 | |
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| 403. | Physical environment | Wikipedia audio article | 0 | |
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| 404. | Origen | Wikipedia audio article | 0 | |
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| 405. | Occupational science | Wikipedia audio article | 0 | |
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| 406. | ETS-VII | Wikipedia audio article | 0 | |
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| 407. | List of health sciences topics | Wikipedia audio article | 0 | |
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| 408. | List of Fullmetal Alchemist light novels | Wikipedia audio article | 0 | |
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| 409. | International Space Station United States National Laboratory | Wikipedia audio article | 0 | |
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| 410. | Hill equation (biochemistry) | Wikipedia audio article | 0 | |
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| 411. | Greek science | Wikipedia audio article | 0 | |
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| 412. | STS-50 | Wikipedia audio article | 0 | |
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| 413. | Indesit Company | Wikipedia audio article | 0 | |
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| 414. | Nonviolence | Wikipedia audio article | 0 | |
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| 415. | Mitsubishi Heavy Industries Aerospace | Wikipedia audio article | 0 | |
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| 416. | Planetary objects proposed in religion, astrology, ufology and pseudoscience | Wikipedia audio a ... | 0 | |
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| 417. | Chungshan Institute of Science and Technology | Wikipedia audio article | 0 | |
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| 418. | Extreme point | Wikipedia audio article | 0 | |
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| 419. | Computer network programming | Wikipedia audio article | 0 | |
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| 420. | Earthquake | Wikipedia audio article | 0 | |
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| 421. | Enrico Costa (physicist) | Wikipedia audio article | 0 | |
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| 422. | Outline of earth science | Wikipedia audio article | 0 | |
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| 423. | Society of Exploration Geophysicists | Wikipedia audio article | 0 | |
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| 424. | Spectrum (functional analysis) | Wikipedia audio article | 0 | |
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| 425. | Telectroscope | Wikipedia audio article | 0 | |
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| 426. | Decade | Wikipedia audio article | 0 | |
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| 427. | Journal of Polymer Science Part A: Polymer Chemistry | Wikipedia audio article | 0 | |
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| 428. | EE (telecommunications company) | Wikipedia audio article | 0 | |
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| 429. | HTV-X | Wikipedia audio article | 0 | |
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| 430. | Long March 3A | Wikipedia audio article | 0 | |
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| 431. | Electrorheological clutch | Wikipedia audio article | 0 | |
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| 432. | Gibsonian ecological theory of development | Wikipedia audio article | 0 | |
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| 433. | Doctor of Physical Therapy | Wikipedia audio article | 0 | |
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| 434. | Pagani (company) | Wikipedia audio article | 0 | |
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| 435. | Sentinel-1B | Wikipedia audio article | 0 | |
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| 436. | Space Tethered Autonomous Robotic Satellite | Wikipedia audio article | 0 | |
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| 437. | Organolead compound | Wikipedia audio article | 0 | |
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| 438. | Unsolved problems in chemistry | Wikipedia audio article | 0 | |
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| 439. | Evolutionary history of plants | Wikipedia audio article | 0 | |
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| 440. | Upper ontology (computer science) | Wikipedia audio article | 0 | |
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| 441. | Liberty | Wikipedia audio article | 0 | |
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| 442. | Morro dos Seis Lagos Biological Reserve | Wikipedia audio article | 0 | |
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| 443. | Australian Computer Society | Wikipedia audio article | 0 | |
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| 444. | Programming Computable Functions | Wikipedia audio article | 0 | |
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| 445. | New College of Interdisciplinary Arts and Sciences | Wikipedia audio article | 0 | |
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| 446. | Justason Market Intelligence | Wikipedia audio article | 0 | |
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| 447. | Electronic and Postal Communications Authority | Wikipedia audio article | 0 | |
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| 448. | National Biography Award | Wikipedia audio article | 0 | |
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| 449. | Plug-in electric vehicles in Canada | Wikipedia audio article | 0 | |
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| 450. | Conscientious objection throughout the world | Wikipedia audio article | 0 | |
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| 451. | Connecticut Academy of Science and Engineering | Wikipedia audio article | 0 | |
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| 452. | Comparison of file systems | Wikipedia audio article | 0 | |
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| 453. | American Insurance Company Building | Wikipedia audio article | 0 | |
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| 454. | Monospaced font | Wikipedia audio article | 0 | |
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| 455. | Evolution (software) | Wikipedia audio article | 0 | |
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| 456. | Mares (scuba gear company) | Wikipedia audio article | 0 | |
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| 457. | Biosafety Level 4 | Wikipedia audio article | 0 | |
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| 458. | Pyramid scheme | Wikipedia audio article | 0 | |
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| 459. | List of telecom companies in India | Wikipedia audio article | 0 | |
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| 460. | Biopolitics | Wikipedia audio article | 0 | |
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| 461. | Thermoelectricity | Wikipedia audio article | 0 | |
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| 462. | Horizontal market software | Wikipedia audio article | 0 | |
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| 463. | Compensating differential | Wikipedia audio article | 0 | |
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| 464. | Jira (software) | Wikipedia audio article | 0 | |
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| 465. | Proposed directive on the patentability of computer-implemented inventions | Wikipedia audio article | 0 | |
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| 466. | 1719 in science | Wikipedia audio article | 0 | |
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| 467. | Max Planck Institute for Mathematics in the Sciences | Wikipedia audio article | 0 | |
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| 468. | Companies Act 1929 | Wikipedia audio article | 0 | |
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| 469. | United Nations geoscheme for Europe | Wikipedia audio article | 0 | |
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| 470. | Electronic voice phenomenon | Wikipedia audio article | 0 | |
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| 471. | Company limited by shares | Wikipedia audio article | 0 | |
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| 472. | James' space | Wikipedia audio article | 0 | |
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| 473. | Mathematical modeling | Wikipedia audio article | 0 | |
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| 474. | Westlake Chemical | Wikipedia audio article | 0 | |
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| 475. | List of biosphere reserves in Madagascar | Wikipedia audio article | 0 | |
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| 476. | Commercial Pacific Cable Company | Wikipedia audio article | 0 | |
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| 477. | Companies Act 1985 | Wikipedia audio article | 0 | |
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| 478. | Orbital Space Plane | Wikipedia audio article | 0 | |
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| 479. | DNA nanotechnology | Wikipedia audio article | 0 | |
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| 480. | Religious response to assisted reproductive technology | Wikipedia audio article | 0 | |
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| 481. | National Electronics Museum | Wikipedia audio article | 0 | |
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| 482. | List of companies based in Malawi | Wikipedia audio article | 0 | |
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| 483. | Flashing (weatherproofing) | Wikipedia audio article | 0 | |
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| 484. | Space Mirror Memorial | Wikipedia audio article | 0 | |
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| 485. | Tibbetibaba | Wikipedia audio article | 0 | |
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| 486. | The Science Museum | Wikipedia audio article | 0 | |
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| 487. | Composite monarchy | Wikipedia audio article | 0 | |
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| 488. | Indus Dolphin | Wikipedia audio article | 0 | |
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| 489. | List of cognitive scientists | Wikipedia audio article | 0 | |
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| 490. | Bioregion | Wikipedia audio article | 0 | |
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| 491. | Neoshamanism | Wikipedia audio article | 0 | |
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| 492. | China Shenhua Energy Company | Wikipedia audio article | 0 | |
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| 493. | Carlisle Indian Industrial School | Wikipedia audio article | 0 | |
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| 494. | Public Television company of Armenia | Wikipedia audio article | 0 | |
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| 495. | Creative computing | Wikipedia audio article | 0 | |
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| 496. | Rhysling Award | Wikipedia audio article | 0 | |
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| 497. | NASDAQ | Wikipedia audio article | 0 | |
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| 498. | Confluence (software) | Wikipedia audio article | 0 | |
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| 499. | Mathematical Intelligencer | Wikipedia audio article | 0 | |
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| 500. | Companies and Intellectual Property Commission | Wikipedia audio article | 0 | |
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