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  2. Don't Scare the Hare - Wikipedia

    en.wikipedia.org/wiki/Don't_Scare_the_Hare

    One player sat in a chair suspended by balloons above the Hare's allotment. The player had to take the carrots from the allotment using long hooks, whilst avoiding motion sensitive lasers, putting it in the bin next to their chair. If the lasers were activated, an alarm went off, and the carrots had to be forfeited to Hare's bin.

  3. Motion detector - Wikipedia

    en.wikipedia.org/wiki/Motion_detector

    A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.

  4. Sounds of North American Frogs - Wikipedia

    en.wikipedia.org/wiki/Sounds_of_North_American_Frogs

    Sounds of North American Frogs is a 1958 album of frog vocalizations narrated by herpetologist Charles M. Bogert. The album includes the calls of 57 species of frogs in 92 separate tracks. The album was released on the Folkways Records label as part of its Science Series. By the 1990s, the album had developed a cult following and was featured ...

  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. Principles of motion sensing - Wikipedia

    en.wikipedia.org/wiki/Principles_of_Motion_Sensing

    However, initial size, power consumption and price had prevented their mass adoption in consumer electronics. While there are other kinds of motion detector technologies available commercially, there are four principle types of motion sensors which are important for motion processing in the consumer electronics market.

  7. Frequency-resolved optical gating - Wikipedia

    en.wikipedia.org/wiki/Frequency-resolved_optical...

    FROG is currently the standard technique for measuring ultrashort laser pulses replacing an older method called autocorrelation, which only gave a rough estimate for the pulse length. FROG is simply a spectrally resolved autocorrelation, which allows the use of a phase-retrieval algorithm to retrieve the precise pulse intensity and phase vs. time.

  8. Gray treefrog - Wikipedia

    en.wikipedia.org/wiki/Gray_treefrog

    This confusion leads to the inability of females to accurately locate the origin of the call. The lowest intensity of a neighbor's call that a male frog is tolerant of is known as the aggressive threshold. When this threshold is reached, a male frog will use a different call known as an aggressive call to initiate male-male conflict or intolerance.

  9. Biological motion perception - Wikipedia

    en.wikipedia.org/wiki/Biological_motion_perception

    The following model contains detectors modeled from existing neurons that extracts motion features with increasing complexity. (Figure 4). [22] Detectors of Local Motion. These detectors detect different motion directions and are modeled from neurons in monkey V1/2 and area MT [24] The output of the local motion detectors are the following:

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