Title

By A&W Root Beer (J)

Intro

I think you know what a microwave is, but IÕll bet you didnÕt know that you can use microwaves to transmit messages?  When I say microwave, you probably think popcorn and burritos.  After you read my report, you might think of some other things.  Do you really understand how a microwave works?  Do you really know about its history?  Do you ever think of questions about how it is used?  Well, I really hope that this report makes you respect this piece of technology.

How it works

Why food doesnÕt all cook at the same time?

Have you ever put a whole bunch of marshmallows in the microwave, and they all cooked at the same time?  According to Professor Lee, the reason for that is because the microwave oven is shooting microwaves into the compartment where you put your food from every direction.  That means it would cook more in the center more than it would cook on the side.

Why it wouldnÕt be okay for a kid to play around with a microwave.

Why wouldnÕt it be okay for a kid to play around with a microwave?  Well, according to William J. Beaty and U. Washington, a kid -and adult- could get hurt really badly.  Also, if they donÕt own the microwave and blow it up and donÕt get hurt, their parents will either grounded you, spank you, or lock you in your room for a week.

History or Future

How were microwaves invented?

How were microwaves invented?  The answer comes from Gallawa.  It is actually very interesting.  Dr. Percy Spencer was actually just trying out a new vacuum that he had just made, and found that his candy bar in his pocket had melted.  He then put a few kernels of popcorn by the vacuum, turned it one, and they popped all over his lab.

How he got ideas, and then he tested.

 Also according to Gallawa, the next day he and a colleague tested the vacuum again.  And this time, with an egg.  They then put the egg by the vacuum, turned it on, and watched.  Then, because of the high rising temperature, the egg started to shake.  Then the colleague that Dr. Percy Spencer had brought with him got closer to the egg.  The egg then couldnÕt take the temperature any more, and it exploded into the astonished face of the colleague.  Then, if an egg, candy bar, and popcorn could be cooked with this, why not other foods?

How the first microwave was made. 

       And also according to Gallawa, he fashioned a big metal box that opened and closed.  He then made it so that it fed in microwaves into the box.  But only when the little door was closed.  The first microwave was as big as a now a day refrigerator.  The place where you put the food in was the same size as todayÕs microwave ovens, but because of the lack of high tech technology that we have today, it needed the extra space.

Usage

 How can you use it?

Did you know that there are two different types of microwaves?  According to Nasa, there are.  There are short ones and long ones.  I know what youÕre thinking.  What difference does that make?  Well, actually, it makes all the difference in the world, because short microwaves can figure out what the weather will be.  But the long ones transmit messages.  They are really good at it, too, because microwaves can Ōpenetrate haze, light rain and snow, clouds, and smoke.Ķ  (http://science.hq.nasa.gov/kids/imagers/ems/micro.html)

Conclusion

In conclusion, I hope that you will respect the microwave a lot more.  And not just the microwave oven, but also just the microwaves.


Bibliography

 

Bibliography

http://www.gallawa.com/microtech/history.html

Gallawa, J. Carlton

Who Invented Microwaves?

24 April, 2007

It talks all about the microwave.  Who invented it, how heavy the first one was, what it all started with (it started with a candy bar), and so on.

 

Bibliography

http://www.gallawa.com/microtech/history.html

Gallawa, J. Carlton

Who Invented Microwaves?

24 April, 2007

It talks all about the microwave.  Who invented it, how heavy the first one was, what it all started with (it started with a candy bar), and so on.

 

Bibliography

http://www.gallawa.com/microtech/history.html

Gallawa, J. Carlton

Who Invented Microwaves?

25 April, 2007

It talks all about the microwave.  Who invented it, how geavey the first one was, what it all started with (it started with a candy bar), and so on.

 

Bibliography

http://www.gallawa.com/microtech/history.html

Gallawa, J. Carlton

Who Invented Microwaves?

25 April, 2007

This is a great article with 5 pictures and 14 paragraphs.  It is sooo, awesome!  And very useful.

 

Bibliography

http://www.gallawa.com/microtech/history.html

Gallawa, J. Carlton

Who Invented Microwaves?

25 April, 2007

This is a great article with 5 pictures and 14 paragraphs.  It is sooo, awesome?  And very useful.

 

Bibliography

http://science.hq.nasa.gov/kids/imagers/ems/micro.html

Some one at NASA

Microwaves

30 April, 2007

It is a very cool article with 9 pictures, and 12 paragraphs.

 

Bibliography

http://www.colorado.edu/physics/2000/microwaves/index.html

Professor Lee

Microwave Ovens

1 May, 2007

It is a very interesting article with 5 (or more) clips, a lot of paragraphs and a lot of pictures.

 

Bibliography

http://amasci.com/weird/microexp.html

Beaty, William J. and Washington, U.

Unwise Microwave Oven Experiments

2 May, 2007

It is a good article with 3 verry long paragraphs.  It is verry cool.

 

Bibliography

http://www.fda.gov/cdrh/consumer/microwave.html - 1

Unknown

Microwave Oven Radiation

2 May, 2007

It is a good article with 28 paragraphs and no pictures.