BASF LNT (Lean NOx Trap) technology removes NOx from diesel engine exhaust.
[edit on Wikidata] Sounding or urethral sounding is the medical use of probes called sounds to increase the inner diameter of the urethra and to locate obstructions in it. Sounds are also used to stretch the urethra in order to receive genital piercing. Urethral sounding and urethral play are also used to refer to this practice in a sexual context. Urethral play can involve the introduction of either soft or rigid items into the meatus of the penis (as well as farther in).
A flute is a type of aerophone, as is the Eunuch flute, also referred to as a mirliton. A flute is an aerophone or reedless wind instrument that produces its sound from the flow of air across an opening. According to the instrument classification of HornbostelâSachs, flutes are categorized as edge-blown aerophones. Aside from the voice, flutes are the earliest known musical instruments.