1590: The Source - Revision history

172.68.205.178: /* Explanation */ Less lazy link.

2024-10-26T16:16:24Z

‎Explanation: Less lazy link.

CategoryGeneral: Cross-reference

2024-10-26T10:28:15Z

Cross-reference

SomeoneIGuess at 03:03, 31 October 2023

2023-10-31T03:03:03Z

108.162.245.11: Clarified pink noise

2023-06-05T22:34:52Z

Clarified pink noise

LostXOR: title text doesn't say on Earth

2023-05-16T14:39:06Z

title text doesn't say on Earth

Mushrooms: trivia bulletpoint

2022-12-05T13:05:41Z

trivia bulletpoint

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2022-05-26T19:45:43Z

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2022-05-26T19:06:48Z

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@@ Line 28: / Line 28: @@
 There is a story by A.E. Van Vogt in "The War Against the Rull" where an all-pervasive vibration leads to a coming of age for the youthful protagonist.
-Identifying sounds in empty rooms was previously mentioned in [[1199]].
+Identifying sounds in empty rooms was previously mentioned in [[1199: Silence]].
 The high-pitched hum generator would later be referenced in [[2848: Breaker Box]].

← Older revision		Revision as of 10:28, 26 October 2024
Line 27:		Line 27:

	There is a story by A.E. Van Vogt in "The War Against the Rull" where an all-pervasive vibration leads to a coming of age for the youthful protagonist.		There is a story by A.E. Van Vogt in "The War Against the Rull" where an all-pervasive vibration leads to a coming of age for the youthful protagonist.
		+
		+	Identifying sounds in empty rooms was previously mentioned in [[1199]].

	The high-pitched hum generator would later be referenced in [[2848: Breaker Box]].		The high-pitched hum generator would later be referenced in [[2848: Breaker Box]].

← Older revision		Revision as of 03:03, 31 October 2023
Line 27:		Line 27:

	There is a story by A.E. Van Vogt in "The War Against the Rull" where an all-pervasive vibration leads to a coming of age for the youthful protagonist.		There is a story by A.E. Van Vogt in "The War Against the Rull" where an all-pervasive vibration leads to a coming of age for the youthful protagonist.
		+
		+	The high-pitched hum generator would later be referenced in [[2848: Breaker Box]].

	==Transcript==		==Transcript==

@@ Line 20: / Line 20: @@
 There do, however, exist devices that are meant to create a high pitched hum, that people might wish to install in their house. These will be humming in the {{w|ultrasound|ultrasonic}} regions, although cheap versions can often be heard by young people. They are typically used for {{w|Electronic_pest_control#Ultrasonic|electronic pest control}}, while slightly lower frequencies which can typically be heard only by young people are sometimes used to {{w|The Mosquito|repel children}}. It is possible that someone tried to get rid of Cueball.
-There do exist {{w|white noise}} generators (which make equal volume noise on every frequency) and {{w|pink noise}} generators (which make noise that sounds equally loud to the human ear at every frequency) which are used to test recording studios to see if they have good sound quality. It seems unlikely that the device is one of these, as it seems to be designed to generate a high-pitched hum: pink/white noises are categorically and perceptually different from a hum.
+There do exist {{w|white noise}} generators (which make equal volume noise on every frequency) and {{w|pink noise}} generators (which make noise that has an equal amount of energy at every frequency) which are used to test recording studios to see if they have good sound quality. It seems unlikely that the device is one of these, as it seems to be designed to generate a high-pitched hum: pink/white noises are categorically and perceptually different from a hum.
 The sound wave spectrum in [[273: Electromagnetic Spectrum]] also contains a line for "that high-pitched noise in empty rooms".

@@ Line 14: / Line 14: @@
 This comic alludes to the perspective of an outside observer who doesn't hear the hum but is watching someone who can hear it: because the sound isn't written out in text, the comic reader at first is confused by Cueball's inexplicable searching.
-In the first two frames of the comic we see [[Cueball]] trying to locate the direction of the sound, by standing in the middle of the room, turning his head from one to the other side. Finally he walks down a flight of stairs (probably to the basement) and here he locates the source: A machine whose only function is to generate a high pitched hum. The title text asks why on Earth they had such a machine in the first place, which is somewhat difficult to explain and likely the crux of the title text's joke.
+In the first two frames of the comic we see [[Cueball]] trying to locate the direction of the sound, by standing in the middle of the room, turning his head from one to the other side. Finally he walks down a flight of stairs (probably to the basement) and here he locates the source: A machine whose only function is to generate a high pitched hum. The title text asks why they had such a machine in the first place, which is somewhat difficult to explain and likely the crux of the title text's joke.
 Luckily it was thus easy for Cueball to get rid of this sound at the source. But in real life most electronics generate hums and cannot reasonably be turned off without losing functionality. For instance fluorescent lights, phone chargers and computer modems are common culprits, refrigerators and washing machines less commonly. It could also come from outside the house, in which case it will be much harder either to locate the source or to do anything about it. Power lines and transformers are common outside sources.

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 ==Trivia==
-'Empty room hum' is also referred to in [[273:_Electromagnetic_Spectrum#The comic in detail|other waves]] in [[273: Electromagnetic Spectrum]] and the title text in comic [[597: Addiction]].
+*'Empty room hum' is also referred to in [[273:_Electromagnetic_Spectrum#The comic in detail|other waves]] in [[273: Electromagnetic Spectrum]] and the title text in comic [[597: Addiction]].
 {{comic discussion}}
 [[Category:Comics featuring Cueball]]