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...r vor 1945.jpg|thumb|right|Fritz Menzer in his military uniform at the end of the war]] ...n of cryptographic devices and procedures, as well as the security control of their own methods.<ref name="fritz">{{cite web |url=https://www.nsa.gov/new ...

...}</ref> The ''Schlüsselgerät'' 39 was abandoned by German forces in favour of the [[Schlüsselgerät 41|''Schlüsselgerät'' 41]]. ...[Otto Buggisch]] gave the technical description of the cipher unit as part of [[TICOM]] ''homework''. ...

{{Short description|Branch of nanoscience}} ...be.png|thumb|Single-walled [[Carbon nanotube|Carbon Nanotube]], consisting of a graphite sheet wrapped into a cylinder shape.|alt=]] ...

...d 146-2005-0152, Geheimer Funkmeldedienst des OKW.jpg|thumb|right|Soldiers of the OKW's secret radio communication service encrypting or decrypting messa ...Ministry]].<ref>Friedrich L. Bauer: Decrypted Secrets. Methods and Maxims of cryptography. 3d revised and expanded edition. 2000, p. 412</ref> ...

{{Short description|Space service branch of the U.S. military}} {{redirect|Semper Supra|the official march of the United States Space Force|Semper Supra (march)}} ...

{{short description|Month of 1962}} [[File:Flag of Rwanda (1962-2001).svg|120px|thumb|right|Rwanda]] ...

{{Short description|Clock that monitors the resonant frequency of atoms}} ...clock updated by radio signals|Radio clock|the clock as a measure for risk of catastrophic destruction|Doomsday Clock|other topics|Atomic Clock (disambig ...

{{broader|History of radio}} ...were first identified in German physicist [[Heinrich Hertz]]'s 1887 series of experiments to prove James Clerk Maxwell's [[electromagnetic theory]]. Hert ...

{{Short description|Type of signal processing filter}} ...which are the analogue of the electrical signal. At the input and output of the filter, [[transducer]]s convert the electrical signal into, and then ba ...

{{Short description|Overview of scientific and technological developments in Iran/Persia}} ...te]]. [[Iran]] is the [[Timeline of first orbital launches by country#List of first orbital launches by country|9th country to put a domestically built s ...

...t description|Solar cell that can produce electrical energy from each side of the cell}} ...t orientation, with bifacial modules near [[Donaueschingen|Donaueschingen, Germany]].<ref>{{cite web | url=https://interestingengineering.com/innovation/arabl ...

|5,111<ref name=ArcGISUK/> (active, as of 30 July 2021) | ventilator_cases = 785<ref name=ArcGISUK/> (active, as of 30 July 2021) ...

...cs, science, technology and engineering during the [[Victorian era|reign]] of [[Queen Victoria]]. == Professionalisation of science == ...

...:Apollo 17 The Last Moon Shot Edit ro.jpg|thumb|A [[Saturn V]] rocket, one of the most [[Impulse (physics)|powerful]] operational launch vehicles to date ...d under-development''' launcher families, while the second contains a list of '''retired''' launcher families. ...

...e: Flow battery systems with solid electroactive materials|journal=Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materia ...that shows a hierarchical classification of supercapacitors and capacitors of related types]] ...

...ribed by William James Morton (1845–1920) in: ''The X-ray; Or, Photography of the Invisible and Its Value in Surgery'' (English; German: ''Röntgenstrahle ...g organisms. As a result, the study of radiation damage also became a part of this history. ...

{{Short description|List of definitions of terms and concepts commonly used in aerospace engineering}} ...] and [[aeronautics]]. For a broad overview of engineering, see [[glossary of engineering]]. ...