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2. Dropsonde - Wikipedia

   en.wikipedia.org/wiki/Dropsonde

   Dropsonde delivery system on a NOAA P-3 Hurricane Hunter. A dropsonde is an expendable weather reconnaissance device created by the National Center for Atmospheric Research (NCAR), designed to be dropped from an aircraft at altitude over water to measure (and therefore track) storm conditions as the device falls to the surface.

3. Rain sensor - Wikipedia

   en.wikipedia.org/wiki/Rain_sensor

   A rain sensor or rain switch is a switching device activated by rainfall. There are two main applications for rain sensors. There are two main applications for rain sensors. The first is a water conservation device connected to an automatic irrigation system that causes the system to shut down in the event of rainfall.

4. Hunter Boot Ltd - Wikipedia

   en.wikipedia.org/wiki/Hunter_Boot_Ltd

   A private consortium led by Lord Marland of Odstock and comprising Peter Mullen, ex CEO of Thomas Pink, and Julian Taylor, all of whom were previous shareholders in Hunter Rubber Company, supported by the Pentland Group plc, bought Hunter out of administration and Hunter Boot Ltd was born. [20]

5. Passive infrared sensor - Wikipedia

   en.wikipedia.org/wiki/Passive_infrared_sensor

   A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.

6. History of Apple Inc. - Wikipedia

   en.wikipedia.org/wiki/History_of_Apple_Inc.

   The Apple I went on sale in July 1976 as an assembled circuit board with a retail price of $666.66. [41] [42] [43] Wozniak later said he had had no idea about the relation between the number and the mark of the beast, and that he came up with the price because he liked repeating digits. [39] About 200 units of the Apple I were eventually sold. [44]

7. NES Zapper - Wikipedia

   en.wikipedia.org/wiki/NES_Zapper

   The Zapper is an electronic light gun accessory launched within the Nintendo Entertainment System (NES) in North America on October 18, 1985. It is a cosmetic redesign by Nintendo of America's head designer Lance Barr, based on Gunpei Yokoi's Video Shooting Series light gun (光線銃シリーズガン), which had been released in Japan for the Famicom on February 18, 1984.