Japan
Published on Dec 15, 2015
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PRESENTATION OUTLINE
RADAR
- Radar technology began with experiments using radio waves in the laboratory of German
- Physicist Hienrich Hertaz
- He discovered that these waves could be sent through many different materials but were reflected by others
- Radar sets come in many different sizes depending on the job they are expected to do
- A transmitter produces the radio wave when a radio waves strikes an object such as a plane.
Untitled Slide
- part of the waves are reflected back to the radar set
- A common type of radar is called pulse
- This type of radar sends out radio waves in short burst
- The most common use to help navigate ships and planes
SONAR
- There are two types of sonar sets.
- Active sonar sets sends out sound pulses called pings, then receives the returning sound echo.
- Passive sonar set receive sound echoes without transmitting their own sound.
- It measures the waters depth.
- Sonar ( sound navigation and ranging)
HAND GRENADES
- Type 97 hand grenade.
- Used by the Japanese army.
- The grenade was roughly 4" in over all length.
- It weighed about 1lb when fully loaded.
HAND GRENADE
- Used by the Japanese army.
- Type 91 hand grenade.
- It was like the type 97 grenade but the only difference was it had
- A base that could be unscrewed for the attachment of a propellant
- Charge, allowing the grenade to be used from a grenade launcher.
