| Train whistles--are they code or random? | | I've been listening to the trains running through my town for more than a year now and they seem to follow a pattern sometimes. One long, one short then one long. At times it's two short and one long. There are many combinations but they don't sound... | |
| | Do You Hear Bells? | | There are many different bells in our everyday life. There is the doorbell, the school bell, and the church bell. There is the bell on the cooking timer and the bike bell. The bell that I am most likely to hear is the one on my friends bike. People... | |
| | Dog Whistles | | Do Dog Whistles exist purely for human ear comfort or because dogs respond more so to those higher frequencies? | |
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