Heinrich Hertz

Hertz's 1887 apparatus for generating and detecting radio waves: a spark transmitter (left) consisting of a dipole antenna with a spark gap powered by high voltage pulses from a Ruhmkorff coil, and a receiver (right) consisting of a loop antenna and spark gap.One of Hertz's radio wave receivers: a loop antenna with an adjustable micrometer spark gap (bottom).[14]

Heinrich Rudolf Hertz (German:[hɛɐʦ]; 22 February 1857 – 1 January 1894) was a German physicist who first conclusively proved the existence of electromagnetic waves theorized by James Clerk Maxwell's electromagnetic theory of light. Hertz proved the theory by engineering instruments to transmit and receive radio pulses using experimental procedures that ruled out all other known wireless phenomena. The unit of frequency – cycle per second – was named the "hertz" in his honor.

单词	Hertz oscillator
释义	Hertz oscillator 英语百科 Heinrich Hertz Heinrich Rudolf Hertz (German:[hɛɐʦ]; 22 February 1857 – 1 January 1894) was a German physicist who first conclusively proved the existence of electromagnetic waves theorized by James Clerk Maxwell's electromagnetic theory of light. Hertz proved the theory by engineering instruments to transmit and receive radio pulses using experimental procedures that ruled out all other known wireless phenomena. The unit of frequency – cycle per second – was named the "hertz" in his honor.
随便看	double wedge cut的意思 double wedged boat的意思 double wedge section的意思 double weft的意思 double weft brocade的意思 double weft cloth的意思 double weft fabric的意思 double weft flannelette的意思 double weighing的意思 double weighing method的意思 double weighing scale的意思 doubleweight的意思 double weight的意思 double weighted的意思 double weight hydrogen的意思 double weight paper的意思 double welded butt joint的意思 double welded joint的意思 double well的意思 double welt的意思 double Wenckebach phenomenon的意思 double whammies的意思 Double Whammy的意思 double wharfage的意思 Double wheel的意思

Hertz oscillator

Heinrich Hertz