1. My favourite domestic appliance
by Aleksandra Kandić
C1.b Technical English Project:
I Wonder How It Works!
Lingva-Valjevo 2017

2. What is it and what is it used for?
Small domestic device, named for material of which it is commonly made.
A clothes iron has roughly triangular surface that, when heated, is used to press clothes to remove creases.

3. How it works?
Ironing works by loosening the ties between the long chains of molecules that exist in polymer fiber materials.
With the heat and the weight of the ironing plate, the fibers are stretched and the fabric maintains its new shape when cool.

4. HISTORY
Metal pans filled with hot coals were used for smoothing fabrics in China in the 1st century BC.
A later design consisted of an iron box which could be filled with hot coals.
In Kerala in India, burning coconut shells were used instead of charcoal, as they have a similar heating capacity. This method is still in use as a backup device, since power outages are frequent. Other box irons had heated metal inserts instead of hot coals.

5. FEATURES:
A design that allows the iron to be set down, usually standing on its end, without the hot soleplate touching anything that could be damaged
A thermostat ensuring maintenance of a constant temperature
An electrical cord with heat-resistant silicone rubber insulation
Injection of steam through the fabric during the ironing process
A water reservoir inside the iron used for steam generation
An indicator showing the amount of water left in the reservoir,
Constant steam: constantly sends steam through the hot part of the iron into the clothes
Steam burst: sends a burst of steam through the clothes when the user presses a button
A retractable cord for easy storage

6. ADVANCED FEATURES:
Anti-burn control: if the iron is left flat (possibly touching clothes) for too long, the iron shuts off to prevent scorching and fires
Energy saving control: if the iron is left undisturbed for several (10 or 15) minutes, the iron shuts off
Non-stick coating along the sole plate to help the iron glide across the fabric
Cordless irons: the iron is placed on a stand for a short period to warm up, using thermal mass to stay hot for a short period. These are useful for light loads only. Battery power is not viable for irons as they require more power than practical batteries can provide.
3-way automatic shut-off
Self-cleaning
Vertical steam to help to remove creases and wrinkles by holding an iron vertically and steaming material close to it
Dial controlling the amount of steam to emit as a constant stream
Anti-drip system

7. How it looks like at my home?

8. QUESTIONS Why is it my favorite device?
Bacause I have multitasking skils
Because I am a tidy person
Because I am boring

9. Questions What is it used for? It is used to treat nervousness
It is used for having fun
It is used to make you good-looking
What is it used for?

10. Questions Which century was it invented in? In the 1st century BC
In the 5th century CE

11. Questions Where does the name come from?
From the person who invented it
From the material which it is made of
From the operation

12. Questions How does it work? How does ironing affect molecule ties?
It breaks them
It loosens them
It fixes them