Wei le, rechteckige 



337 



-, r echteck i ge square wave. 

 -,rechtsl auf ende dextro-propagat- 

 ing wave or surge, -.reflektierte 

 reflected wave. -, riickl auf ende 

 reirogressive wave, reflecied w. 

 -, stehende standing wave, sia- 

 Lionary w. -, ultrakurze ultra- 

 short wave, quasi-optic w. 

 -»unged'ampf t'e undamped wave, per- 

 sistent w. , continuous w. (c.w. ). 

 Wei le, Anregungs- exciton (strictly 

 an electron in a crystal moving in 

 a field of a positive hole). 

 Antriebszahntrommel- drive sprocket 

 shaft. Boden- direct or ground 

 wave ("hugging" curvature of earth). 

 Bug- (eines Geschosses) nose wave 

 (of a projectile). de Broglie- 

 de Broglie wave, electron w. , phase 

 w. Dehnungs- dilational wave. 

 Dezimeter- micro-wave, decimeter w. 

 Eigen- natural wave. Elektronen- 

 de Broglie electron wave, phase w. 

 Elementar- wavelet (of Huygens). 

 Feld- field wave. Front- onde de 

 choc, impact wave, bow w. (preced- 

 ing a projectile's nose). Hohl 

 (metal 1 ) rohr- metal-sheath con- 

 ducting wave (in tubular or hollow 

 pipe wave guidsO. Huygens 'sehe 

 Elementar- Huygen wavelet. Knall- 

 shock wave. Kopf- onde de choc, 

 impact wave, bow w. , shell w. , 

 ballistic w. (ballistics). Kreis- 

 circular (electric) wave. Kugel- 

 spherical wave, Leitbahn- transit- 

 time or electron-path oscillation. 

 Luft- sky wave, space w., indirect 

 w. Mantel- wave on outer surface 

 of co-axial cabie, "shell" wave. 

 Materie- de Broglie elementary 

 particle (electron or proton) wave, 

 elementary w. , phase w. Mikro- 

 micro wave, hyper-frequency w. 

 (1-100 centimeters). Nuten- slot 

 ripple. Phasen- de Broglie wave, 

 phase w. , electron w. Raum- space 

 wave, sky w., indirect w, ; spheri- 

 cal w. Raumladungs- space-charge 

 wave. Rohr- dielectric or con- 

 ducting wave (solid or hollow pipe 

 nave guide). Rundfunk- (cf 



Wei 1 en berg 



Wellenabgrenzung) broadcast wave, 

 medium-frequency w. Schalt- wiper 

 shaft, switch s. Spiegel- re- 

 flected wave. Staub-, Kundt'sche 

 acoustic dust pattern (showing 

 nodes and antinodes). Steuer- 

 control wave (in chain broadcast). 

 Stirn- onde de choc, impact w. , 

 bow w. Störungs- garbling wave 

 (in secret or coded telephony) j 

 parasitic w. , interfering w. , 

 jamming w. Stoss- percussion 

 wave, impact w. , impulse w. ; 

 wave impacting upon a joint (say, 

 in a pipe), llberschall- super- 

 sonic wave, ultra-audio w. , 

 ultrasonic w. Ul trakurz-(cf . 

 Wellenabgrenzung) ultra short 

 wave, uhf w. , quasi-optical w. 

 Unterschall- subaudio wave, infra- 

 sonic w. Verdi chtungs- compres- 

 sion wave. Verdlinnungs- rare- 

 faction wave. Wander- traveling 

 wave, transient (wave), surge. 

 Zeichen- marking wave, signal w. , 

 keying w. Zwerg(cf Wellenabgren- 

 zung) micro wave, midget w., dwarf 

 w. Zwischenzeichen- spacing wave, 

 back w. 

 Wellenabgrenzung und -Einteilung 

 frequency and wave-band designa- 

 tion suggested by Fed. Communic. 

 Comm. (PCC): very low-frequency 

 (vlf) 10-30 kc; low-f. (If) 

 30-300 kc; medium-f. (mf ) 300- 

 3000 kc; hign-f. (nf) 3-30 mc; 

 very-high f. (vhf ) 30-300 mc; 

 ultra-high f. (uhf) 300-3000 mc; 

 super-nigh f. (shf) 3,000-30,000 

 mc. 

 Wei len-antenne wave antenna, 

 Beverage a. -anzeiger cymoscope 

 (obs. ), wave detector, oscillation 

 detector, coherer, -auf zeichner, 

 Schall- phonodeik (record on 

 film), phonautograph. -ausbrei- 

 tung in Hohlmetal I rohr wave 

 propagation in hollow metal pipe, 

 metal -sheath conducting wave p. 

 in wave guide, -bereichmel der 

 wave band indicator, -berelchschal- 

 ter wave band switch, -berg 



