Extern
Refine
Year of publication
Document Type
- Article (851)
- Book (589)
- Part of a Book (251)
- Part of Periodical (103)
- Report (88)
- Preprint (81)
- Other (57)
- Review (56)
- Conference Proceeding (34)
- Working Paper (23)
Language
- German (1340)
- English (351)
- French (125)
- Croatian (110)
- mis (110)
- Portuguese (35)
- Latin (24)
- Italian (19)
- dut (16)
- Multiple languages (9)
Keywords
- Mosambik (121)
- Mozambique (121)
- Moçambique (120)
- Rezension (86)
- Bibel (65)
- Christentum (63)
- bible (63)
- christianity (63)
- Aufsatzsammlung (54)
- Literatur (54)
Institute
- Extern (2163)
- Biowissenschaften (1)
Die Reichsstelle für den Unterrichtsfilm (später Reichsanstalt für Film und Bild in Wissenschaft und Unterricht ) stellte - wie ihr Name sagt - den Unterrichtsfilm in den Mittelpunkt ihrer Arbeit. Das Lichtbild wurde zwar schon im Einführungserlaß des Reichserziehungsministeriums vom 26. Juni 1934 mehrfach erwähnt, trat aber - wie auch die Schallplatte - erst später hervor. ...
When filming in time-Iapse with low picture frequencies it is advantageous to work with an impuls method of operation, i. e. to switch in the camera for only a small proportion of the total time. The length of the exposure and the picture-frequency should be able to be regulated as independantly as possible from one another. The author discusses the possibilities given in this field and describes a suitable apparatus for the purpose.
The author examines different methods to avoid moisture condensation on observation windows caused by irregular temperature distribution. The respective measures consist of covering the window with a water-absorbent layer and heating with electrical current or through absorption of radiation. Furthermore, the culture-medium can be fixed in suitable cases on the observation window, through which photographs can be taken.
Der Wechsel : der Obrist
(1846)
Der Blinde
(1882)