In order for a fire to sustain itself ... Using an air vortex cannon to focus the sound waves from the bass reflex port, it ‘wiggles’ the flame out in a matter of seconds, as illustrated ...
“Second sound is the hallmark of superfluidity, but in ultracold gases so far you could only see it in this faint reflection ...
You can revise sound waves by clicking the links below. Click the links below to try our GCSE physics exam-style or quick-fire quizzes and test your skills and knowledge.
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