Aditya Owns A Microwave #3 F

INQUIRY LEARNING!!!

BY ADITYABY ADITYA

Have you ever lived without a microwave oven?What do you do when food has been in the fridge?

Certainly it has been important in our lives.But have you ever thought how it works, when was it

first made, and how has it changed throughout?This keynote presentation will answer all the questions

for you.

Even I Even I own it!!!own it!!!

Slide 1: Introduction to inquiry learningSlide 1: Introduction to inquiry learningSlide 2: All about the inventorSlide 2: All about the inventor

Slide 3: How did the idea develop and thought of?Slide 3: How did the idea develop and thought of?Slide 4:What are the benefits and negatives of the Slide 4:What are the benefits and negatives of the

modern microwave ovenmodern microwave ovenSlide 5: How are early microwave ovens different to Slide 5: How are early microwave ovens different to

today’s?today’s?Slide 6: How has it impacted our lives?Slide 6: How has it impacted our lives?

Slide 7: Timeline of how the microwaves have Slide 7: Timeline of how the microwaves have changed overtime?changed overtime?

Slide 8: How it worksSlide 8: How it worksSlide 9: Bibliography & CreditsSlide 9: Bibliography & Credits

I am presenting my inquiry learning about the legendary microwave oven.

I’ve made questions and have thoroughly answered them.

This process has taken me several weeks.

I am presenting my inquiry learning about the legendary microwave oven.

I’ve made questions and have thoroughly answered them.

This process has taken me several weeks.

All about the intelligent inventor

His ChildhoodPercy Spencer, unfortunately, had a rough and

miserable childhood.He was born in a remote country in 1894. He soon

became an orphan, at an age of seven-years old. When he turned twelve years old, he began to work in a mill

that produced electricity. He was growing child that was curious and self-taught.

His AchievementsHe was the first to discover that microwaves can

cook food. He was the first to invent the microwave oven

Contributed to the project of developing microwaves.

How did the idea How did the idea develop and how was it develop and how was it thought of??thought of??

The discovery of the idea of microwave The discovery of the idea of microwave cooking was an accident. The idea was cooking was an accident. The idea was discovered by the famous inventor discovered by the famous inventor Percy Spencer of the Raytheon Percy Spencer of the Raytheon Company. This incident happened in Company. This incident happened in World War II, when Spencer was World War II, when Spencer was studying the power of microwaves. A studying the power of microwaves. A candy bar melted while he was doing candy bar melted while he was doing this. Spencer realised that microwave this. Spencer realised that microwave cooking was way better than oven and cooking was way better than oven and sunlight cooking. He shared this sunlight cooking. He shared this information, and this idea was further information, and this idea was further considered by the world.considered by the world.

Note: That the microwave cooking Note: That the microwave cooking discovery was not because that they discovery was not because that they wanted a new way of cooking, more or wanted a new way of cooking, more or less, it was lucky.less, it was lucky.

What are the benefits and negatives of the microwave oven???

THE BENEFITS

Microwaves have timers in their operating system, which can be used for heating things for a certain time.

Microwave Ovens heat food much more efficiently than a conventional oven, its faster and less energy wasting

Microwave Ovens heat food without getting hot themselves. Ovens send heat directly, so the metal inside them also gets hot. This way your hand can’t get burned if you touch the microwave oven.

Microwave’s heat food by sending microwaves into the oven. A normal oven just sends heat out, bringing dangers such as inefficiency heating, and unnecessary heating. Microwave heating is better because none of these problems tend to happen.

THE NEGATIVES

A microwave oven wastes 36% of its energy usage.

A microwave oven can send too powerful microwaves which can damage the food and make if extra hot and can cause inconvenience.

HOW ARE THE EARLY MICROWAVES DIFFERENT TO TODAY’S?

HOW ARE THE EARLY MICROWAVES DIFFERENT TO TODAY’S?

To answer this question I compared To answer this question I compared one microwave oven made in 1967 one microwave oven made in 1967

and one made in 2007.and one made in 2007.

1967, the first decent microwave oven...1967, the first decent microwave oven...

• Was 115 watt consuming

• Its retailing price was $495

• Cooked hamburgers in thirty seconds

• Featured only two buttons (which were start and stop)

• Microwave rays leaked out of the containers which could get harmful

• Was viewed with suspicion and had many companies discouraging the making of it

• Was 115 watt consuming

• Its retailing price was $495

• Cooked hamburgers in thirty seconds

• Featured only two buttons (which were start and stop)

• Microwave rays leaked out of the containers which could get harmful

• Was viewed with suspicion and had many companies discouraging the making of it

2007, the best microwave oven so far.2007, the best microwave oven so far.....

Is 50% less costIs 50% less cost

Cooks food in half the timeCooks food in half the time

1500 watt consuming1500 watt consuming

Powerful enough to cook a five pound Powerful enough to cook a five pound ham and six pound chickenham and six pound chicken

90 million households own it in America90 million households own it in America

Is streamlined designedIs streamlined designed

Firstly...Firstly...

The magnetron was The magnetron was developed.developed.

It was a very important It was a very important component of the component of the microwave oven.microwave oven.

Then...Then...In 1947, The first microwave oven In 1947, The first microwave oven

was made.was made.It was called Radarange.It was called Radarange.

It was very heavy and space It was very heavy and space consuming.consuming.

Next...Next...In 1952, the first Tappan microwave In 1952, the first Tappan microwave

oven was made.oven was made.Itwas a improwavement from the Itwas a improwavement from the

Radarange and it was home useable.Radarange and it was home useable.

After...After...In 1967, the first Amana In 1967, the first Amana Radarange developed.Radarange developed.

It was the first commercial It was the first commercial microwave oven.microwave oven.

Quite usually, it was the size Quite usually, it was the size of today’s microwave ovens.of today’s microwave ovens.

Later...Later...In 1975, Microwave Oven sales In 1975, Microwave Oven sales exceeded those of gas ranges.exceeded those of gas ranges.New components were added.New components were added.

Eventually, Last year, 2007, Eventually, Last year, 2007, The new Amana Radarange The new Amana Radarange

was developedwas developedLatest model of microwave Latest model of microwave

ovensovens

Impacting our lives!!!!!-HowImpacting our lives!!!!!-How

To answer this question I viewed comments and opinions from different people from various

websites.

Opinion from answers.com:‘ I believe it has affected our lives

positively and negatively. The negatives are, that people are losing the traditional way of cooking dinner. The positives are, that the microwave can cook foods in an

instant, and can save a lot of time.’Opinion from J.Walker Smith:

‘The microwave oven is the NO.1 rated technology to make people’s lives better. It’s giving people instant satisfaction to

making people’s lives better, which people are trying to have today.’

Whatever people’s opinions, most people would agree on that the microwave oven has impacted most people’s lives a lot. Just think

how much we use it every day...

Bibliography & CreditsThe sites I used were:www.wikipedia.org

http/kitchen-counter-tops.net/www.howstuffworks.com

www.hubpages.comwww.gallawa.com

Books:How things work

CHIRP!!CHIRP!!!CHIRP!!

THANKS FOR

LISTENING!!!