1. How does a wall clock work ?
By :
Fatima khalfan
Aisha Musallam
Mariam talib

2. Whose a wall clock maker?
Clocks have been around for a long time, The first clocks had been Shadow clocks made first by the Egyptians and Sundials made by the Greeks as well as many others. As far back as 4,000 years ago.

3. How does a wall clock work?
A digital clock is no different. It simply handles these functions electron rather than machine.
So in a digital clock, there is an electrical power supply. There is an electronic time base that "ticks" at some known and accurate rate. And there is a display, usually either LEDs (light emitting diodes) or an LCD (liquid crystal display).

4. Does a wall clock useful to people?
This would be useful for people who make their shelters/homes inside a mountain or underground and can't always look outside to see what time it is.
. And I would say I would use this in almost every room as it would look cool and it would use up all my gold.

5. Is it easy to use a wall clock?
Wall clocks make finding the time easy.
Yes it easy to use a wall clock, it easy to show us the time and it remind us .

6. clock Digital Braille Clocks Talking Clocks
How many type of clock?
clock Digital
Braille Clocks
Talking Clocks

7. wall clock Digital
Digital clocks are also a popular type of clock display today. These clocks use two sets of numbers, separated by a colon to indicate the hour and minute.

8. Braille clocks 
Braille clocks are specifically used for people who have impaired vision.
These clocks display the time through various raised dots on the dial.

9. Talking clocks
Talking clocks can also be used by people with low vision, but are often used in telecommunications and public spaces (such as airports or train stations).
These clocks are also popular for entertainment purposes.

10. Does a wall clock work by battery?
In electric clocks, the power source is either a battery or the AC power line.
In clocks that use AC power, a small backup battery is often included to keep the clock running .

11. Sources : http://en.wikipedia.org/wiki/History_of_timekeeping_devices