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2. Noise pollution - Wikipedia

   en.wikipedia.org/wiki/Noise_pollution

   Noise pollution, or sound pollution, is the propagation of noise or sound with potential harmful effects on humans and animals.The source of outdoor noise worldwide is mainly caused by machines, transport and propagation systems.

3. Sound - Wikipedia

   en.wikipedia.org/wiki/Sound

   Sound is defined as "(a) Oscillation in pressure, stress, particle displacement, particle velocity, etc., propagated in a medium with internal forces (e.g., elastic or viscous), or the superposition of such propagated oscillation.

4. Sonoluminescence - Wikipedia

   en.wikipedia.org/wiki/Sonoluminescence

   Sonoluminescence is the emission of light from imploding bubbles in a liquid when excited by sound. Sonoluminescence was first discovered in 1934 at the University of Cologne . It occurs when a sound wave of sufficient intensity induces a gaseous cavity within a liquid to collapse quickly, emitting a burst of light.

5. ACA subsidies set to expire in 2025, risking loss of health ...

   www.aol.com/aca-subsidies-set-expire-2025...

   In 2024, of the 21.6 million Americans who purchased health insurance plans from ACA marketplaces, 20.1 million received enhanced subsidies, according to the CBO.

6. Mechanism of sonoluminescence - Wikipedia

   en.wikipedia.org/wiki/Mechanism_of_sonoluminescence

   Surface emission emits a more intense flash of light with a longer duration and is dependent on wavelength. Experimental data suggest that only volume emission occurs in the case of sonoluminescence. [1] As the sound wave reaches a low energy trough, the bubble expands and electrons are able to recombine with free ions and halt light emission.

7. Two-alarm fire tears through NYC building as 10 rushed to ...

   www.aol.com/fire-tears-nyc-building-10-160944678...

   A raging two-alarm fire left 15 people injured in an Upper Manhattan apartment building Tuesday morning, reports say. The blaze tore through the first floor of a six-story building West 204th ...