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In Shakespeare's Macbeth, what is "a tale told by an idiot, full of sound and fury, signifying nothing"? The question arises from these powerful lines as to who the "idiot" telling the "tale"...
23. Feb. 2022 · The word "footsteps" without a modifier suggests distinct, separate sounds that are not loud. The air was full of her screams. I'd use either this or preferably "her screams filled the air" (as in #2). The room was full of their cries and grunts.
- Assumptions
- Calculations
- But How Loud Is Sun?
The space between Earth and Sun is filled with uniform air. This is a non-physical assumption. It basically means we are ignoring the gravitational effects of both Sun and Earth; but then one shoul...According to Wikipedia:For comparison purposes, the minimum level of a pure tone at 1000 Hz has been standardized at a sound pressure of 20 micropascals. It is approximately the quietest sound a yo...Sound intensity ∝∝ (amplitude)2∝(ΔP)22∝(ΔP)2Some amount of spherical symmetry.I⊙4πR2⊙=I⊕4πr2⊕ΔP⊙≈(r⊕R⊙)ΔP⊕≈1500720mPc≈4.3PcI⊙4πR⊙2=I⊕4πr⊕2ΔP⊙≈(r⊕R⊙)ΔP⊕≈1500720mPc≈4.3Pc I believe Sun is capable of creating pressure differences much higher than this, so one expects to hear Sun's noise loud and clear. One should be able to estimate typical pressure differences by looking at solar winddata.
In order to estimate how loud sun is, we would have to concentrate on different things that might happen on Sun. A typical aspect which might be interesting are solar flares. Let's try and estimate the sound of a solar flareon earth. According to wikipedia: So the intensity of a solar flare sound on Earth can be approximated with 1/61/6 of solar co...
20. Mai 2024 · This distance is known as the wavelength of the sound, usually measured in metres and represented by λ. As the wave propagates through the air, one full wavelength takes a certain time period to pass a specific point in space; this period, represented by T, is usually measured in fractions of a second.
23. Juli 2023 · In short, there are two different aspects to sound: there's a physical process that produces sound energy to start with and sends it shooting through the air, and there's a separate psychological process that happens inside our ears and brains, which convert the incoming sound energy into sensations we interpret as noises, speech, and music.
The speed of sound in air is approximately 345 m/s (about 1250 kph, 770 mph, 1100 ft/s). The speed of sound in air is nearly the same for all frequencies and amplitudes. It increases with temperature.
People get wavelength and period mixed up all the time. The period of a sound wave is the time it takes for an air molecule to oscillate back and forth one time. The wavelength of a sound wave is the distance between two compressed regions of air.
- 5 Min.
- David SantoPietro
