ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Dry carbonyl iron powder (General Aniline and Film Corp., Types E and SF), however, produces good images of tape-recorded sounds, and we propose the name ferrograms for these visible patterns. The recorded surface of the tape is drawn through a thin layer of the powder spread on smooth paper and ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/178328b0
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