Show I LENGTH OF WIRELESS I WAn VE i Naturally It Is Four Times That That Tiati the Aerial but This Does Dots Not Nc Always Hold Good j jIn In In articles of wireless tel tele r n such expressions as meter n w lengths meter GOO wave lengths B meter wave lengths arc are 5 i used In reply to a correspondent asks how bow the length of the S measured the Scientific the following simple explanation 1 The length of n nu an electric w wart Ii k determined by a n wave Tiati rJ ural wave length of an aerial b Is fot fa t times its linear length just as tt ft wave-length wave of a note of or a n closed i igan gan an pipe Is four times the length sift pipe and the time wave-length wave of theof the li of a tuning fork Is four times lima fr length of the box which Is wI with th the note However other s make it difficult to tG mas the wave length by a rule and tIld wave-meter wave gives a more correct corral R suit than can be found by m 4 th the length of the wire |