| 21. | Contains the pioneering all-female track " Ladies First ."
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| 22. | In the US Grierson had met pioneering documentary filmmaker Robert Flaherty.
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| 23. | The Institute also nurtured pioneering trades unionists and encouraged local democracy.
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| 24. | A good example of this trend is the pioneering Kew Gardens.
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| 25. | Bear Island was the site of a pioneering food web diagrams.
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| 26. | De Havilland's pioneering Comet entered airline service in 1952.
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| 27. | It is a pioneering result of modern physics and quantum theory.
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| 28. | He is most famous, however, as a pioneering balloonist.
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| 29. | Houtermans and Gamow did pioneering work on quantum tunneling in 1928.
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| 30. | Bose subsequently made a number of pioneering discoveries in plant physiology.
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