Page 138 - How It Works - Book of Amazing Answers To Curious Questions, 12

� AMAZIG ANSWERS TO CURIOUS QUESTIONS -------------------

What's inside

a piano?

How does one of the most popular
instruments on the planet get its
distinctive sound?

Soundboard Bridge Dampers
The soundboard converts Helps transmit the Felt pads, raised onto
the vibrational energy of vibrational energy of the strings to stop them
struck strings and strings into the vibrating totally,
amplifies their sound. soundboard as efficiently dropped to elongate
as possible. vibration or positioned
for a softening effect.

Why is

champagne Hammers
Fixed to the
end of the keys through
the piano's mechanism,
bubbly? strings to vibrate them
hammers strike its
and create sound.
Discover how this popular

celebratory drink is made
hampagne begins life as a COz, giving the champagne its
basic wine, created from a fizz, a process that usually takes a
C variety of grapes to provide few weeks or months.
a mix of juices that give ita Next, the wine is bottled and
smoother taste. By converting the slowly rotated to allow the residue
natural sugar of the grapes into yeast and sugar to collect at the vary in
Mechanism construction, with
alcohol through fermentation and neck, known as riddling. The
A complex arrangement bass strings made
pressing, the carbon dioxide is finest champagnes are often of steel and
of wooden and metal
initially removed. Champagne allowed to ferment in this manner pieces that transfer the wrapped
key pressing action of in wire, but vary
grapes tend to be more acidic but for more than seven years, but little in diameter.
the player into the
contain less sugar than those used more commonly the process is left striking movement of
in regular wines, simply due to the for about two years. Finally, an the hammer. Frame
fact that they are harvested earlier. automated method called Made from the finest
Yeast and sugar are then added degorgement freezes and removes Pedals hardwoods and metals,
The sustain pedal sustains all notes, the the frame serves as an
to the wine. When yeast comes this sediment before sweet wine
sostenuto sustains certain notes while immobile - but often
into contact with sugar or sugar is added according to the the una corda shifts the action highly ornate - platform
molecules it undergoes a type of champagne required. It's assembly to the right so multiple for the soundboard to
strings are stuck by one hammer. vibrate within.
chemical reaction that produces then corked.
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