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2. Forward-looking infrared - Wikipedia

   en.wikipedia.org/wiki/Forward-looking_infrared

   Forward-looking infrared (FLIR) cameras, typically used on military and civilian aircraft, use a thermographic camera that senses infrared radiation. [ 1 ] The sensors installed in forward-looking infrared cameras, as well as those of other thermal imaging cameras, use detection of infrared radiation, typically emitted from a heat source ...

3. Infrared photography - Wikipedia

   en.wikipedia.org/wiki/Infrared_photography

   This filter is behind the mirror of DSLRs, so the camera can be used normally - handheld, normal shutter speeds, normal composition through the viewfinder, and focus, all work like a normal camera. Metering works but is not always accurate because of the difference between visible and infrared refraction. [48]

4. Infrared - Wikipedia

   en.wikipedia.org/wiki/Infrared

   Digital cameras often use infrared blockers. Cheaper digital cameras and camera phones have less effective filters and can view intense near-infrared, appearing as a bright purple-white color. This is especially pronounced when taking pictures of subjects near IR-bright areas (such as near a lamp), where the resulting infrared interference can ...

5. Indoor positioning system - Wikipedia

   en.wikipedia.org/wiki/Indoor_positioning_system

   Many different systems take advantage of existing wireless infrastructure for indoor positioning. There are three primary system topology options for hardware and software configuration, network-based, terminal-based, and terminal-assisted. Positioning accuracy can be increased at the expense of wireless infrastructure equipment and installations.

6. Thermal imaging camera - Wikipedia

   en.wikipedia.org/wiki/Thermal_imaging_camera

   Cameras may be handheld, [6] helmet-mounted, [7] or integrated into other equipment such as an SCBA. A handheld camera requires one hand to position and operate, leaving only one free hand for other tasks, but can be easily transferred between firefighters. The majority of thermal imaging cameras in use in the fire service are handheld models.

7. How much should you have in your 401(k)? Here's how your ...

   www.aol.com/finance/average-401k-balance-by-age...

   People who are between 60 and 63 have a higher catch-up limit of $11,250 for a total of $34,750 in tax year 2025. Here's how age groups stack up on average and median 401(k) balances as of 2024: Age