Wristwatch Design For The Visually Impaired Activity - Guided Research (Page 2 of 2) in pdf

Wristwatch Design For The Visually Impaired Activity - Guided Research Page 2

How does a wristwatch work?

A mechanical wristwatch is regulated by a spring that acts in the same way that a

pendulum does in a stationary clock. The gear trains move the hands around the dial.

Describe how quartz is used to power wristwatches today.

Quartz watches use an electronic oscillator that is regulated by a quartz crystal to keep

time. This crystal oscillator creates a signal with a very precise frequency making quartz

watches considerably more accurate.

Identify five major changes/advancements in history that have impacted daily life for people

with visual impairment. Identify the date and the person(s) responsible for the advancements.

1829: The New

1929: The seeing

1784: The first school

England Asylum for the

Eye, the first dog guide

for the blind was

Blind (later the Perkins

school in the United

established in Paris,

School for the Blind)

States, was

France by Valentine

was incorporated in

Hauy.

incorporated.

Watertown, MA.

1829: Louis Braille

1903: Helen Keller

publishes an

was the first student

explanation of his

who is deaf/blind to

embossed dot code

receive a college

(inspired by Barbie).

degree.

Complete the chart below to show the Braille alphabet.

Wristwatch Design for the Visually Impaired Activity – Guided Research

Wristwatch Design For The Visually Impaired Activity - Guided Research Page 2