Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Microwave
1.
2. What is a wave?
A wave can be
described as a
disturbance that
travels through a
substance from one
place to the other.
3. How does a microwave
heat food?
A microwave oven
emits radio wave about
the frequency of 2.5
gigahertz. Waves at
this frequency are
absorbed by water, fats
and sugars and is then
transformed into heat.
4. Ovens and Microwaves
The biggest difference
between an oven and a
microwave is that ovens
cook from the outside to
the inside. But
microwaves using radio
waves travels through the
food heating the water, fat
and sugar molecules
evenly throughout the
food.
5. How the microwave oven
came to be
The microwave oven was found
by accident. It started out as an
invention for military purposes in
world war 2. In that time it was
only a tube that emitted radio
waves used to track german
airplane of the coast of brittain.
The fact that the micro wave
could be used to heat food was
only discovered 7 years later by
percy LeBaron spencer. He
noticed that the radio wave let
choclate bars melt in his pocket.
The first microwave oven was
about the size and weight of a
refrigerator.
6. Benefits of using the
microwave oven
It saves time
Easy to heat food
Easy to clean
You dont have to
keep an eye on it
It retains nutrients
and viatmins in the
food
7. Disadvantages of a
microwave oven
If you cook a broccolie you
would think it is good
against cancer but by
microwaving it it loses the
anti cancer nutrients
The microwave cooks
dense food unevenly
The microwave doesn’t
alow a crust to form for
example if you are baking a
cake