مواضيع غريبة للبرزنتيشن

 

Mobile Phones الهواتف النقاله

This subject talks about definition, advantages and disadvantages of


mobile phones. Mobile phone is a hand held device with built-in antennas


often called cell phone. Mobile phones are seen as a modern invention,


but they are a development of something that dates back a long way.


The


biggest and most obvious change is the rapid take-up of mobile phones.


Twelve years ago, they were only for the wealthy, and had a “yuppie”


image. Seven years ago they were still rare. Now there are more mobile


phones than households and numbers are still growing fast. We are


approaching the time when it will be considered unusual not to have a


mobile phone.


There are many advantages of mobiles. They are


convenient to use i.e. using it anytime you need to make a call, SMS can


be used when one can’t afford to call, enables one to send and receive


e-mail, They are portable e.g. it can be carried from one place to


another.


But the disadvantages are that children’s skulls are


vulnerable to radio waves from phones which can damage their brain


tissues as the nervous system is very sensitive during development. Cell


phone antennas which are close to earpiece are harmful to humans due to


large volumes of electro-magnetic waves that get concentrated around it


during the receipt and placing of calls. Vibrating phones affect men’s


reproductive system, radiation from phones also increase blood-pressure,


risk of brain tumors mainly acoustic neuromas. Lab research also shows


that long exposure to mobile phone on stand-by leads to serious


degradation of white blood cells. They are susceptible to loss and


theft. Restricting access to corporate data and applications.


Non-repairable internal corrosion of parts if wet. Vulnerable to extreme


heat or cold which may cause momentary loss of screen display. Mobiles


are very noisy sometimes especially when we are praying in the mosque,


learning at university, or reading in libraries.

Useful Modern Inventions in the Home(اهمية الاختراعات الجديده)

Life


today is remarkably changed compared to that of our forefathers’ time.


Take, for instance, new inventions in the home. The rice-cooker,


pressure cooker, gas stove, electric oven, microwave oven, electric


toaster and food-processor are a great boon to housewives who find


cooking and preparing meals very much easier now than in the olden days.


Now time is saved because electricity cuts long hours of tedious work


and we find we can afford to spend more time on hobbies and other


activities.


The rice-cooker is a real time-saver and it is so simple


to operate that even a child of ten or so can handle it and dish out


perfectly cooked rice. So are the other gadgets which save the housewife


long hours of labour.


Besides the kitchen gadgets, there are others


like the vacuum-cleaner for cleaning the house, the electric lawn-mower


for trimming the grmind and the washing-machine for washing the clothes.

Life for housewives today is more relaxing and they have more free


time to attend to their children or do reading, sewing, shopping and


visiting.

• مواضيع حلوة للبرزنتيشن
• مواضيع غريبة للبرزنتيشن
• مواضيع للبرزنتيشن
• مواضيع غريبة
• مواضيع برزنتيشن غريبة
• مواضيع عن برزنتيشن
• مواضيع
• مواضيع جديدة للبرزنتيشن
• مواضيع غريبه للبرزنتيشن
• مواضيع برزنتيشين