電話者,縮地傳音,所以通訊。
初,萬里相隔之人,或以飛鴿傳書,或以驛站傳遞,不便甚矣。至西元一八七六年,有加拿大人名曰貝爾者,始創電話,自是通訊不復難矣。今寰宇列國咸有國家區碼。欲通訊海外,則加國家區碼於號前。
爲言者取電話之送話器對談,子震聲帶厲氣震,然聲波;其附於送話器,則生電流,言「話音電流」。
話音電流循道而傳萬里之受話器內。其使電流聲波化,經空氣傳於人耳。
如此,則成大易之始通。
向者漢地呼之曰電話(telephone)。東島亦造字以表電話,左從言,右爲電。
聲音動靜,具錄於維基共享︰電話 |
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