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YouTube / Steinway & Sons

How Steinway (Still) Makes Pianos

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YouTube / Steinway & Sons

Steinway & Sons has been in business since 1853, making pianos. With a century and a half of experience, Steinway has developed a mature process for creating pianos, and it's a lot of work. Here's a nice little video explaining all the steps that go into it—and the first one takes up to one year. Enjoy:

Why the crackly audio? Here's the explanation from Open Culture:

Several decades ago, John H. Steinway (the great-grandson of Henry E. Steinway) narrated an audio tour of the New York factory, where he described the generations-old process of making a Steinway grand piano. In 2011 Ben Niles, the producer behind the documentary film Note by Note, synced the audio tour with present-day footage of the Steinway factory....

See also: Leonardo da Vinci's Piano/Cello Hybrid and Glenn Gould Playing the Goldberg Variations (Video). (Gould famously loved his Steinway CD 318.)

(Via The Kid Should See This and Open Culture.)

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Watch How to Make a Compass
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Let's say the mega-earthquake comes and you're stranded with just some MacGyver-style bits and bobs. If you've got a magnet and a little knowledge, you can make a compass that reliably points north. Below, check out a vintage segment from Curiosity Show explaining how to do it—and a bit on the science of why compasses work.

In the clip below, presenter Deane Hutton shows three methods involving a mirror, cork, a pin, a drinking straw, and a circular magnet (in different combinations). There's something for everyone!

Incidentally, one of the key issues in making a compass is knowing which end of a magnet points north and which points south. One YouTuber asked how to determine this, if it's not already marked—as might be the case in a survival situation. Decades after the clip aired, Hutton chimed in via YouTube comments to answer:

Wait till the Sun is about to set. Stand with your right shoulder toward the setting Sun. You are now facing South. Suspend the magnet and let it swing freely. When the magnet stops swinging, the end pointing South is the South Pole of the magnet. Deane.

Science is cool. Anyway, enjoy:

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Watch How To Make a Self-Starting Siphon Using Bendy Straws
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In this vintage video segment from Curiosity Show, we learn about self-starting siphons. These things start a flow of water without the user having to squeeze a pump or suck on a tube, which is a distinct benefit.

In the segment, we also observe the limitations of self-starting siphons. Because the act of submersion starts the flow, we're limited to siphoning water out of very full vessels. But still, this could be useful for a home aquarium, which is one of a thousand scenarios in which you don't want to use a mouth-primed siphon.

The best part of the segment is when presenter Rob Morrison shows how to make your own self-starting siphon. File this under "Handy stuff you can do with bendy straws." Tune in and enjoy this simple physics demo:

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