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2. Atomic line filter - Wikipedia

   en.wikipedia.org/wiki/Atomic_line_filter

   Atomic line filter. A potassium Faraday filter designed, built and photographed by Jonas Hedin for making daytime LIDAR measurements at Arecibo Observatory. [1] An atomic line filter ( ALF) is a more effective optical band-pass filter used in the physical sciences for filtering electromagnetic radiation with precision, accuracy, and minimal ...

3. Syphon Filter - Wikipedia

   en.wikipedia.org/wiki/Syphon_Filter

   Syphon Filter: Logan's Shadow October 2, 2007. Syphon Filter is a third-person shooter video game series developed by Bend Studio (formerly Eidetic) and published by Sony Computer Entertainment (previously 989 Studios ), for the PlayStation, PlayStation 2 and PlayStation Portable. In the series, Syphon Filter is the name given to a mysterious ...

4. RF and microwave filter - Wikipedia

   en.wikipedia.org/wiki/RF_and_microwave_filter

   RF and microwave filter. Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges ( medium frequency to extremely high frequency ). This frequency range is the range used by most broadcast radio, television, wireless communication (cellphones ...

5. Infrared cut-off filter - Wikipedia

   en.wikipedia.org/wiki/Infrared_cut-off_filter

   Thus a blue filter makes the picture look blue. A blue filter marginally allows more light in the blue wavelength to pass resulting in a slight shift of the color temperature of the photo to a cooler color. Because of this, the term "IR filters" is commonly used to refer to filters that pass infrared light while completely blocking other ...

6. Blue Microphones - Wikipedia

   en.wikipedia.org/wiki/Blue_Microphones

   www .bluemic .com. A Yeti USB microphone. Blue Microphones (legally Baltic Latvian Universal Electronics, LLC) is an American audio production company owned by Logitech that designs and produces microphones, headphones, recording tools, signal processors, and music accessories for audio professionals, musicians and consumers.

7. Photographic filter - Wikipedia

   en.wikipedia.org/wiki/Photographic_filter

   Photographic filter. Four photographic filters (clockwise from top-left): an infrared hot mirror filter, a polarizing filter, and a UV filter. The larger filter is a polarizer for Cokin-style filter mounts. In photography and cinematography, a filter is a camera accessory consisting of an optical filter that can be inserted into the optical path.

8. Band-stop filter - Wikipedia

   en.wikipedia.org/wiki/Band-stop_filter

   In signal processing, a band-stop filter or band-rejection filter is a filter that passes most frequencies unaltered, but attenuates those in a specific range to very low levels. [1] It is the inverse of a band-pass filter. A notch filter is a band-stop filter with a narrow stopband (high Q factor ). Narrow notch filters ( optical) are used in ...

9. Bernedoodle's Shock and Confusion at Hearing a Harmonica for ...

   www.aol.com/bernedoodles-shock-confusion-hearing...

   This sweet and expressive Bernedoodle is a family gal through and through, and she's always enjoying time with her human parents and Pug sister. When they showed her a harmonica for the first time ...