- Timestamp:
- Jun 26, 2015, 10:37:39 PM (9 years ago)
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en/miscellaneous.php
r426 r801 105 105 106 106 107 108 109 <h3>Movie projector "Dresden 1"</h3>110 111 <div class="box left clear-after">112 <img src="/shared/photos/kommunikationstechnik/kinomaschine.dresden1.jpg"113 alt="Photography of the movie projector Dresden 1" width="350" height="630" />114 115 <div class="bildtext">116 <p>The technikum29 has a movie projector from 1951 (there are117 more and even older projectors from the 1930s that are stored in the118 archive for lack of space).</p>119 <p>120 Movie projectors have always been very complex devices. At that time,121 the bright picture projection was archived with an arc light which was122 generated between two carbon pencils. The waste heat was deflected via a123 chimney pipe! <!-- stupid mode... -->124 Since the pencils got shorter and shorter while the movie went on, they125 had to be moved continously closer together for producing a constant126 luminosity. Otherwise the light goes out.127 <br/>We will repair this device to show an original newsreel from the 1960s.128 </p>129 </div>130 </div>131 107 132 108
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