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2. Electronic pest control - Wikipedia

   en.wikipedia.org/wiki/Electronic_pest_control

   Electronic pest control is the name given to any of several types of electrically powered devices designed to repel or eliminate pests, usually rodents or insects. Since these devices are not regulated under the Federal Insecticide, Fungicide, and Rodenticide Act in the United States, the EPA does not require the same kind of efficacy testing that it does for chemical pesticides.

3. Cat repeller - Wikipedia

   en.wikipedia.org/wiki/Cat_repeller

   Results from the study indicated that the device did have a moderate deterrent effect, reducing the probability of a previous cat intrusion into a garden by approximately 32% in the first experiment, but not in the longer running second experiment. [6] Scatter guns are another form of ultrasonic device. These laser-aiming devices can be ...

4. Acoustic harassment device - Wikipedia

   en.wikipedia.org/wiki/Acoustic_harassment_device

   Acoustic harassment and acoustic deterrents are technologies used to keep animals [1] and in some cases humans away from an area. Applications of the technology are used to keep marine mammals away from aquaculture facilities and to keep birds away from certain areas (for instance in the vicinity of airports and blueberry fields).

5. Insect repellent - Wikipedia

   en.wikipedia.org/wiki/Insect_repellent

   Synthetic repellents tend to be more effective and/or longer lasting than "natural" repellents. [1] [2]For protection against ticks and mosquito bites, the U.S. Centers for Disease Control (CDC) recommends DEET, icaridin (picaridin, KBR 3023), oil of lemon eucalyptus (OLE), para-menthane-diol (PMD), IR3535 and 2-undecanone with the caveat that higher percentages of the active ingredient ...

6. Ultrasound - Wikipedia

   en.wikipedia.org/wiki/Ultrasound

   Ultrasound can also provide additional information such as the depth of flaws in a welded joint. Ultrasonic inspection has progressed from manual methods to computerized systems that automate much of the process. An ultrasonic test of a joint can identify the existence of flaws, measure their size, and identify their location.

7. Chinese spy balloon that traversed US airspace was packed ...

   www.aol.com/chinese-spy-balloon-traversed-us...

   The Chinese spy balloon that traversed across the US in 2023 was secretly fitted out with American technology that may have allowed it to spy on Americans.