There is a drastic change in the lives we are leading today and that we had 10 years ago. Science has changed the face of the world with great advancements being made in every field. The most suitable example that can be quoted here is that of the traditional light bulbs. These incandescent light bulbs, though helped the world coming out of darkness but they are constantly destroying the environment.

After a lot of research, scientists came out with one good alternative option to these traditional light bulbs. Cfl compact fluorescent light bulbs are much more energy efficient and do not have any negative effect on the environment like the traditional bulbs. But in spite of knowing all the benefits of these cfl's, people are still not limiting the use of those harmful traditional bulbs. Around 15% of the total electricity produced is used to provide sufficient light. And from this 15% a major part is wasted as it is consumed by the inefficient incandescent bulbs. Since, today there is a great usage of lighting fixtures everywhere, the increased use of incandescent bulbs is adding to climatic destruction like global warming.

The major disadvantage of traditional light bulbs is that, they are not at all energy efficient sources and are also effecting the eco system. So, these reasons should be sufficient for anyone to limit their usage and help protect the environment as finally we would be the sufferers. According to a research, an incandescent bulb converts only 5% of the energy consumed into light wasting the rest of it whereas a cfl, can almost produce the same amount of light as the energy consumed so saving up to 80% of energy. So, it is clearly evident that cfl is a far better option than the traditional bulbs. Science has bestowed on us a number of innovations n one among them is mobile phones.every thing conferred upon us ought to b utilized in a positive way.

With advent of mobile phone the entire concept of communication is completely changed. Every one right from the house maid, rickshaw puller, taxi drivers, office boys etc. From a common man to the elite class, people are using mobile phones for communication. The cost of mobile starts from modest rs 30 to billions platinum and diamond studded. Is an electronic device that reduces human laborious effort.in this 21st century,computer can be known by the name of next human brain.the invention of computer made human life much easier,faster and comfortable.computer is regarded as one of the greatest achievements. Due to the advancement of modern computer and information technology, multimedia systems play more and more impact on our lives. Mobile phones a curse or a boon? since the beginning of time man has been inventing things the bike, the car, the radio, the television, the telephone, the computer but the most recent invention to have taken the world by storm has to be the mobile phone.

Originally a large, heavy, black box with an even larger protruding aerial, mobile phones were not widely used but today they are a must have fashion accessory, and with coloured fascias, aerials, covers, logos and ring tones available, its no surprise that children as young as eight are now asking santa for an ericsson pf768 or motorola wing timeport v.550. With recent advances in technology wap services have been provided on mobiles and in japan they have fitted a video camera into the ever decreasing in size hand held phenomena. Recent figures have shown that street crime is up by nearly 50% with most muggers stealing mobiles, and with the average pay as you go package costing 163 99, these second hand mobiles are quickly sold on to other youths for a much cheaper price. New research indicates also that using a mobile phone while driving greatly increases the risk of having an accident whether the phone is hand held or hands free.

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The study also confirms that the danger remains in the minutes after a phone call has finished. At least 12 road deaths have been linked to mobile phones in great britain but it is believed that mobile phones have been involved in thousands of other accidents. Some scientists say that with only one thousandth of the power of a microwave oven, a phone cant cook your brain, if your ear gets warm its simply the devices batteries and circuitry heating up. So should we forget about mobile phone radiation causing brain tumours and scrambling our minds? if it doesnt reliably cause cancer in animals at high doses, then it probably isnt going to cause cancer in humans, says john moulder, a radiation oncologist. And with 46,0 new users every day last year, the cancer scares have not proven enough to stop people texting, voice mailing and one ringing.

And while the scientists continue to argue whether mobiles help or hinder us, the advice given to users is: dont panic but watch this space. Added an answer

you can carry a mobile phone with you so you don 't miss important calls if you are lost, you can call for directions. If you are in an accident, you can call the police or ambulance and if the phone has a camera, you can take pictures of the accident. You can use a mobile phone to call your customers or boss if you are running late to a meeting. Keep in touch with friends and family good for emergencies employees can keep in touch at all times. Customers can contact staff 24/7 phones have internet connection more work available they have cameras you can check your emails can be used worldwide it can fit in your pocket. in many ways computers and their ability to connect to the internet seems to be a tremendous blessing.

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They allow us to compile vast data bases of information and allow us to access that information in a large variety of ways. With computers we can store or transmit information thus saving on the need to have warehouses of paper of stored information that can be very difficult to search through and locate what we need. But, is this blessing also a curse in disguise? with spell check we become much less concerned with learning how to spell.