Introduction:
In this blog we foucs in history of microwave the student must know how to discavre this tecnology.
The existence of radio waves was predicted by James Clerk Maxwell in 1864 from his equations.
In 1888, Heinrich Hertz was the first to demonstrate the
existence of radio waves by building a spark
gap radio transmitter that produced 450 MHz microwaves, in the
UHF region. The equipment he used was primitive, including a horse trough, a
wrought iron point spark, and Leyden jars. He also built the first parabolic antenna, using a zinc gutter sheet. In
1894 Indian radio pioneer Jagdish
Chandra Bose publicly demonstrated radio control of a bell using
millimeter wavelengths, and conducted research into the propagation of
microwaves.[16]
Perhaps the first, documented, formal use of the term microwave
occurred in 1931:
"When trials with wavelengths as low as 18 cm were made known, there was
undisguised surprise that the problem of the micro-wave had been solved so
soon." Telegraph & Telephone Journal XVII. 179/1
In 1943, the Hungarian engineer Zoltán Bay sent ultra-short radio waves to the
moon, which, reflected from there, worked as a radar, and could be used to
measure distance, as well as to study the moon.[17]
Perhaps the first use of the word microwave in an astronomical context
occurred in 1946 in an article "Microwave Radiation from the Sun and Moon" by Robert Dicke and Robert Beringer. This same article also made a
showing in the New York Times issued in 1951.
In the history of electromagnetic theory, significant
work specifically in the area of microwaves and their applications was carried
out by researchers .
*what did you understand from this blog
In this blog we foucs in history of microwave the student must know how to discavre this tecnology.
The existence of radio waves was predicted by James Clerk Maxwell in 1864 from his equations.
In 1888, Heinrich Hertz was the first to demonstrate the
existence of radio waves by building a spark
gap radio transmitter that produced 450 MHz microwaves, in the
UHF region. The equipment he used was primitive, including a horse trough, a
wrought iron point spark, and Leyden jars. He also built the first parabolic antenna, using a zinc gutter sheet. In
1894 Indian radio pioneer Jagdish
Chandra Bose publicly demonstrated radio control of a bell using
millimeter wavelengths, and conducted research into the propagation of
microwaves.[16]
Perhaps the first, documented, formal use of the term microwave
occurred in 1931:
"When trials with wavelengths as low as 18 cm were made known, there was
undisguised surprise that the problem of the micro-wave had been solved so
soon." Telegraph & Telephone Journal XVII. 179/1
In 1943, the Hungarian engineer Zoltán Bay sent ultra-short radio waves to the
moon, which, reflected from there, worked as a radar, and could be used to
measure distance, as well as to study the moon.[17]
Perhaps the first use of the word microwave in an astronomical context
occurred in 1946 in an article "Microwave Radiation from the Sun and Moon" by Robert Dicke and Robert Beringer. This same article also made a
showing in the New York Times issued in 1951.
In the history of electromagnetic theory, significant
work specifically in the area of microwaves and their applications was carried
out by researchers .
*what did you understand from this blog
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