Search results
Results From The WOW.Com Content Network
LaView 4MP Bulb Security Camera. $29 $40. Save $11 with coupon and Prime. This screw-in security camera supports 2K resolution, color night vision, motion detection, and many other useful features ...
Car alarm. A car alarm is an electronic device installed in a vehicle in an attempt to discourage theft of the vehicle itself, its contents, or both. Car alarms work by emitting high-volume sound (often a vehicle-mounted siren, klaxon, pre-recorded verbal warning, the vehicle's own horn, or a combination of these) when the conditions necessary ...
Crookes radiometer. The Crookes radiometer (also known as a light mill) consists of an airtight glass bulb containing a partial vacuum, with a set of vanes which are mounted on a spindle inside. The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation ...
A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion. 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. They form a vital component of security, automated lighting ...
Anish Thakkar, Au.D., director of audiology at Los Angeles Center for Ear, Nose, Throat and Allergy. From Eargo to Jabra, Phonak and Starkey, these are the best invisible hearing aids according to ...
It starts “ Én Istenem, Jóistenem, lecsukódik már a szemem ” and means, in its entirety, “My God, my good God, already my eyes are closing. But yours are open, Father. While I sleep ...
Active Denial System. The Active Denial System ( ADS) is a non-lethal directed-energy weapon developed by the U.S. military, [2] designed for area denial, perimeter security and crowd control. [3] Informally, the weapon is also called the heat ray [4] since it works by heating the surface of targets, such as the skin of targeted human beings.
Noise control is an active or passive means of reducing sound emissions, often for personal comfort, environmental considerations, or legal compliance. Active noise control is sound reduction using a power source. Passive noise control is sound reduction by noise-isolating materials such as insulation, sound-absorbing tiles, or a muffler rather ...