I need some earplugs to block out rooster crows while I sleep. Help! [more inside]
posted by @homer on Jul 20, 2009 - 21 answers

I want to produce a continuous synth tone from a sample of my own voice. [more inside]
posted by cmoj on Apr 21, 2009 - 3 answers

What are the health effects of very light cigarette smoking (1-3 per week) over the long term? [more inside]
posted by Simon Barclay on Mar 16, 2009 - 14 answers

How many different words (excluding proper nouns) appear in the New York Times on average? [more inside]
posted by stevekinney on Jan 22, 2009 - 9 answers

Looking for a compact Chinese character frequency chart with English pronunciation key for Cantonese. [more inside]
posted by querty on Jan 5, 2009 - 0 answers

Okcupid.com: she's "less desiring of sex". I'm "more desiring of sex". Should I avoid? She's cute. Slightly NSFW details inside, if your boss is reading over your shoulder. [more inside]
posted by anonymous on Dec 30, 2008 - 40 answers

Why are sine waves considered "pure" tones? Why do we consider sinusoids the building blocks of periodic functions? [more inside]
posted by phrontist on Jun 28, 2008 - 35 answers

Armenia terrestrial television frequency list? [more inside]
posted by k8t on Mar 27, 2008 - 1 answer

What are some reputable resources on the deleterious health effects of low frequency sound / vibration? [more inside]
posted by fleetmouse on Jan 23, 2008 - 2 answers

Is voltage/frequency all I need to know to use my brazilian appliances in the US? [more inside]
posted by AnyGuelmann on Jun 27, 2007 - 9 answers

Can I use my 462.5625 Mhz walkie talkies in Europe? I know this frequency band is for public use in the US. Is it also for public use in Europe (Netherlands, Germany and Italy)? [more inside]
posted by gnossos on Jun 16, 2007 - 3 answers

Hypotension/hypovolemia as a low-pass filter: I got cut, I went into shock, and then everything started sounding funny. I'd guess it was a 40 dB (±10) rolloff, which began near 200 Hz (±50) and left me with nothing above 1kHz. How in the world? Story, discussion of numeric estimates, off-the-cuff physiological speculations, etc... [more inside]
posted by eritain on May 12, 2007 - 24 answers

Is there a recent American Word Corpus available for free? [more inside]
posted by Mr. Gunn on May 6, 2007 - 4 answers

Generating pure sound tones at a specific power level, for recording to a CD... [more inside]
posted by Blazecock Pileon on Apr 17, 2007 - 17 answers

Can a 17kHz sound transmit through windows? [more inside]
posted by SoulNoise on Mar 30, 2007 - 5 answers

Why do my turn signals blink faster if one of them goes out? [more inside]
posted by spiderskull on Oct 19, 2006 - 14 answers

ExcelFilter: I need help creating a pie chart as a separate worksheet in Excel that counts how often values appear in a column and creates a pie graph based on that data. I'm stumped, I'm not using the right Google terms, and my company's help desk couldn't guide me through the process, either. (That sounds awkward, so I describe it more comprehensibly inside.) [more inside]
posted by WCityMike on May 19, 2006 - 9 answers

How can I generate an audio frequency only dogs can hear? [more inside]
posted by freudianslipper on Jul 16, 2005 - 18 answers

Does anyone have any remedies for Interstitial Cystitis? [more inside]
posted by pony on Jul 11, 2005 - 7 answers

I've made the switch to a Mac Mini, and unfortunately it seems to be detecting my monitor capabilities incorrectly; how can I override this autodetection, or otherwise get around the problem? [more inside]
posted by Chunder on May 28, 2005 - 17 answers

What's the difference between the various frequency bands for portable phones? I wish to buy a portable phone / digital answering machine for my home (not a cellular phone), and have noticed they come in 900Mhz, 2.4Ghz and 5.8Ghz versions. Is there a difference between these that I should know about before buying a phone?
posted by jacquilynne on Apr 18, 2005 - 18 answers

How often do you get xrays at the dentist's office? Once a year? Once every two years? [mi] [more inside]
posted by fingers_of_fire on Dec 17, 2004 - 16 answers

Electricity and computers. 3 questions about:
1] Mains frequency
2] Computer clock speed
3] Putting 1 and 2 together. [~240v inside] [more inside]
posted by twine42 on Nov 23, 2004 - 9 answers