Category: Music

Things Of Science #333 — Sound

Things of Science #333 - Sound.13This Things of Science unit came with a few small inexpensive noise-makers (small bell, whistle, etc.) and a few things for making simple instruments (rubber band, plastic tube). This is a unit where perhaps the booklet is a good deal better than the things.

Another eBay purchase that came only with the booklet. I think though someone interested in recreating this unit could improve upon the “things” that originally came with it anyway (no doubt size constraints — having to ship the things in the mail — limited what the Things of Science could provide).

Enjoy the booklet:

Things of Science #333 — Sound

More Things of Science scanned here.

Shepard Scale

The Shepard scale is an auditory illusion of a tone that continually ascends or descends in pitch seemingly forever. The illusion can be created by overlapping ascending or descending scales.

It’s sometimes used in music, such as at the end of this song:

Dies Irae

Dies Iræ is a Latin hymn describing the day of judgement. The first line is as follows:

Dies iræ, dies illa

Since used in the hymn, the first few notes of Dies Iræ have appeared in a lot of music, especially movie soundtracks, from The Nightmare Before Christmas to It’s a Wonderful Life to Star Wars: A New Hope. Once you hear it, you’ll start noticing it everywhere. This video gives a history of Dies Iræ, from classical music to modern movie soundtracks.

 

 

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