Bart's+Speech

Technology is an important part of our society, but it is also becoming more of a problem. Many teens rely on having cell phones to keep in touch, but however on Close Up they showed that some teen are “addicted” to having their phones with them. When separated with their phones, they became anxious, depressed and angry. They even said they felt like a part of themselves was gone. And that was after only 11 minutes of being separated! One of them sent 400 texts a day! That’s around 16-17 texts per hour! When texting, teens use abbreviated words like txt and nxt etc. This is not good if it becomes the way they spell in emails or at school! And also another problem is that Many children are committing crimes they have seen in M or R-rated video games. But technology is also very useful. Thanks to broadband we have fast, reliable internet connections, which are always being improved. We can communicate at the touch of a button and there is no need to write out a letter and put it in the post, as emails can send a message across the World in seconds. Cameras are no longer big; they can fit in a cell phone. Wireless networking and internet means you can use a laptop in cars, outside and even multiple rooms without having to unplug and re-plug a bunch of cables. The motors the power cars are polluting our planet, but hydro, electric, bio-fuel and even air powered cars have been invented. Air-cars have a Turbine spun by compressed air. They have an air compressor to provide more fuel. They never need to be refilled either. Nanotechnology, tiny machines made from atoms, could be used in delicate surgery by 2060 and smart toothpaste could use Nanobots to detect and remove plague, but that might be expensive. Smart factories could be completely automatic and sophisticated sensors and computers Could monitor all the systems and make repairs. But that is the future. Today music and videos can be carried on small USB data sticks that are able to hold 8GB or more. Technology has saved many lives. Pacemakers and defibrillators are used to restart your Heart and dialysis can be used when your Kidneys don’t work. Many people think planes, helicopters, tanks and weapons such as machine guns are “Modern”. In fact early versions of these were designed by Leonardo Da Vinci, the famous artist/inventor. In the past, the first true engines were powered by steam. They were big, heavy and they blew up very quickly! Circuits used to be soldered wires, and instead of transistors they had things called Vacuum Tubes. These were unreliable, big and heavy... a little like the steam engines! These days circuits Are printed on circuit boards which are covered in copper, which is put in a chemical to dissolve most of the metal, leaving only the copper on the printed lines. Components are then soldered on to make a small, cheap, effective circuit board. One step better is a microchip. These are tiny circuit boards containing millions of transistors and electronic switches. I’m starting to run out of information to Tell you. This is now the end of my speech.

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