| 31. | Some Stanley " vacuum flasks " in recent years had finely powdered carbon in the " vacuum " space.
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| 32. | There are gases and nerve agents so strong that a vacuum flask released in a crowded place can destroy thousands.
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| 33. | Present-day MEG arrays are set in a helmet-shaped Vacuum flask that typically contain 300 sensors, covering most of the head.
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| 34. | Here a silvered vacuum flask was encased in foam insulation and, using a large glass vacuum plug, held the saturated cell.
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| 35. | An early 1919 high-altitude oxygen system used a vacuum flask of liquid oxygen to supply two people for one hour at.
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| 36. | The rate of heat ( energy ) loss through a vacuum flask can be analyzed thermodynamically, starting from the second TdS relation:
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| 37. | It is also taken to sporting events in vacuum flasks by spectators as a warming drink to fend off the winter chill.
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| 38. | Hydrogen was liquefied for the first time by James Dewar in 1898 by using regenerative cooling and his invention, the vacuum flask.
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| 39. | Proper preparation of the Dewar vacuum flask by tempering prior to use is advised to maintain and optimize the functioning of the unit.
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| 40. | The rubber conical seal ensures the apparatus is hermetically closed, preventing the passage of air between the B�chner funnel and the vacuum flask.
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