Technology covers the use of tools, techniques and systems. It is often dependent on a knowledge of science, as well as the evolution of design.

Appropriate technology and sustainable technology are particular focuses in technology. While they often overlap, sustainable technology may be very simple or complex, cheap or expensive; while appropriate technology emphasizes affordability and robust design.

History of Technology

The history of technology proceeds parallel to the history of humanity. It is focused on the invention of tools and techniques. The timeline reaches from the Stone Age to the medieval and modern history until present.

Prehistory

Stone Age

Homo sapiens needs for its development 200,000 years. Homo erectus, which has become extinct, learned to make fire for heating or cooking. He even knew how to build rafts for travelling the ocean. Furthermore a hugh number of stone tools were developed in this period of time. This stone tools were mainly made of flint, for example a struck, which was made with the help of a hammerstone. Such a struck has a sharp edge so it could be used as a chopper or a scraper.

Copper and Bronze Ages

The Stone Age developed into the Bronze Age. This was distinguished by the development of agriculture, animal domestication and permanent settlements, whereas humans in the Stone Age lived as migrants. Because of this the development of metal smelting was enabled. Especially copper and later bronze were used as raw material. An alloy of tin and copper was also produced. Polished stone tools were still being used.

Iron Age

The Iron Age combined older knowledge with the iron smelting technology. Iron replaced bronze, so that the produced tools became stronger, lighter and cheaper than the ones made of bronze.

Ancient

In this time the growth of ancient civilizations took place. This civilizations like the Sumerians, the Babylonians, the Greek or Romans produced greatest advances in technology and engineering. New ways of living and governance were evolved.

The Egyptians for example developed a hugh number of elementary machines, such as the ramp to aid construction processes.

The peoples of Mesopotamia (Sumerians, Assyrians, and Babylonians) were famous for their inventions. It is no longer certain, whether they invented the wheel or not. What is evidenced is that they lived in cities in contrast to former societies. Their architecture based on mud-brick and stone.

The Greek and Hellenistic civilization generated an immense number of inventions and improvements to existing technology.

Medieval to early modern

At this time European technology was revealed as a combination of tradition and innovation. Former knowledge was enhanced with new perceptions.

Industrial Revolution

The British Industrial Revolution was mainly characterized through textile manufacturing, mining, metallurgy and the transport driven by steam engines. Whereat the production of energy was based on coal, which is a cheap form of energy.

Technologies In Our Daily Life

Today, in the 21st century it is hard to find a place, where no modern technology is used. Almost every one uses a modern technology every day, for example about one billion people use mobile phones on a daily basis, and while they are using these devices they are using many technologies. Living in such a technologised world makes it easier to communicate with other people. It simplifies our work (with machines e.g.) and solves other problems in our lives. There are some critical situations and areas where we need the technologies and where we can not refrain from them. In the field of medicine for example, technologies rescue lots of lives every day.

Examples for technologies that shaped daily life in the past 10 years:
1. Smartphones
2. GPS
3. Internet

The above mentioned are typical examples for technologies that are used everyday by almost everyone. These technologies makes our life easier and solve our everyday problems, e.g. many people use their smartphone with internet access to navigate their car to points of intrest in foreign cities or even their hometown.

How do technologies change our daily life?

Modern technologies make our life easier and more efficient. There are many technologies which are used everyday, which save a lot of time and helps us survive our daily life. Twenty years ago, the people did not have modern technologies like digital camcorders, smartphones, laptops and GPS.

These modern technologies helps us to be more efficient in our daily life, that means for example you can work on the laptop while sitting in the train or learn english with duolingo on your smartphone while riding the bus to school. Technologies make our life much easier than the life people lived before, because for e.g.. there is a solution for almost every thing in the internet and you can use it to solve your problems quickly.

But the technologies do not have just good sites, there are a few bad sites as well. One picture says more than thousand words!

A big factor of change which is effected by the introduction of the smartphones is that the personal contact between people decreased because many people do not meet friends anymore, they are communicating solely over the internet and their smartphone. This sort of virtual lifestyle is not very good. People want to be connected everywhere at every time.

In the future

For the future the trend goes to smaller devices and minimalism. But therefore many technologies have to be more efficient, for example the biggest part in a smartphone is the battery, so the smartphones can only be smaller if the battery is smaller or more efficient.

Technologies we will may use in the future every day:
1. Biometrics (Face recognition instead of the common key, to open doors and checking in hotels)
2. Robots for our own home (vacuum robots for cleaning rooms, robots that will do all the housework and bring food to the table for example)
3. Virtual Reality

Certainly some technologies will not appear any more in the future because they are just old or there is a newer technology that is better. Today, there are some technologies, which will be replaced by a newer technology. As mentioned above the trend goes to minimalism and smallness, therefore it is possible that some technologies will combined in one device. This effect can be seen on smartphones, before the introduction of the smartphone people used a digital camera, an mp3 player, a navigation system and a mobile phone, now there is the smartphone that combines all the before mentioned technologies.

Technologies which will be replaced in the future:
1. Desktop PCs
2. Classic HDD with spinning magnetic disks
3. CD DVD and Blueray

These are three typical examples for technologies that will be replaced during the next 20 years. In the future many people will not use desktop PCs because there will tablets and notebooks, that are lighter and portable to whereever they may be needed. CDs DVDs and Bluerays are very interesting in this point of view because the technology itself of bluerays is not bad, you can store a few hundred gigabytes on one disk - but on the other side there are video on demand platforms, where you can stream movies and series, without going out of your house, or buying an external player for this medium. Video on demand can be used with any smart tv, laptop, tablet or smartphone.

Communication

Digital communication

As a result of the history of technology the world "connected" with the establishment of the Internet in the last 40 years. Thanks to technology communication became easier and we're able to communicate with people from all over the world now.

In order to connect personal computers, establish networks and communicate over them some protocol were developed. The Internet protocol (IP) is the most common one these days. It's used for communication between networks and in the internet aswell. So far there are two major IP implementations. The first one was version 4 and is often referred to as IPv4. An IPv4 address consists of 32 bits in binary notation. When reading such an address it's usually devided into four seperate 8 bit parts. To make it easier for the end-user to use these addresses they are usually displayed in a decimal notion with dots between the four 8 bit parts.

An example: Decimal: 192.168.100.1 Binary: 11000000 10101000 1100100 00000001

In theory it would be possible to have about 2^32 (4.294.967.296) addresses using all 32 bits of an IP address. However there are some restrictions in practice due to different address spaces for different purposes. These days we're in the situation that there's not much address space left in the IPv4 address pool whilst the number of network-braced devices rapidly increases. Whereas some people didn't believe that the IPv4 address pool will not be enough at some point others investigated counter measures. Starting in the nineties another IP procotol implementation was developed which is now often referred to as IP version 6 or IPv6. Its purpose was to offer more address space, but also solve other problems in the IPv4 implementation.

An IPv6 address consists of 128 bits. Without its restrictions for different address spaces it would allow for a total of 2^128 (340.282.366.920.938.463.463.374.607.431.768.211.456 ≈ 3,4 · 10^38) addresses. Using decimal notation the addresses would be quite long, so that it was decided to use the hexadecimal notion in favor. An IPv6 address in hexadecimal notation consists of eight seperate 16 bits parts which are divided by colons.

An example: 2001:0db8:85a3:08d3:1319:8a2e:0370:7347

For various reasons the development of IPv6 was rather slow. It took about twenty years until the majority of companies started to experiment with and use it. The optimum isn't reached yet since the IPv4 and IPv6 implementations coexist.

However thanks to the free address pool in IPv6 it's possible to connect a lot of devices with the Internet - and this is exactly the development that's happening these days. Mobile devices are getting a higher marketshare every month and other uses for the Internet Protocol are explored. In example some people already connect their homes with the internet..

Mobile telecommunication

The newest of mobile telecommunication technology is the fourth generation (4G). Apart from the usual voice and other services 3G, it provides mobile broadband internet access, for example to laptops with wireless modems, to smartphones, and to other mobile devices. Potential and current applications include amended mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing, 3D television, and cloud computing.

Smart Devices and Environments

Smartphones

Smartphone existed long before the IPhone from Apple came on the market. Steve Jobs had a version to revive the market and revulotionieren. With the presentation of the iPhone started a revolution of modern and above all really smart smartphone. A quick user interface which can be operated easily and intuitively, there was not really before the iPhone.

Tablets

It seems to me that tablets have become a new category itself, just as how we distinguish smartphones from laptops and desktops. If you want to position tablets into this group, it probably falls between smartphones and laptops. With the portability of a smartphone but the functionality of a laptop, tablets seem to serve users with top-notch on-the-go entertainment. The tablet screen is large enough to enjoy a movie on, yet the tablets are light enough for you to carry around.

Entertainment aside, one benefit of the tablet is the option for a good sketching, either with a good stylus pen or just with your fingers. In other words, it can afford the user more artistic freedom than the standard laptops can. Smartphones are pretty limiting due to its screen size, which fundamentally rules out the possibility of drafting and other similar activities. Tablets are also great tools to jot down any ad hoc detail or idea, and they allow the user to share almost anything instantly without reproducing the text, photo or picture, making it a very convenient tool for designers.

In terms of organizational capabilities, tablets make it easier for you to manage your life: your finances, schedules, reviews, etc. Again, smartphones are absolutely restricting in that sense due to its screen size, although they are great in providing useful reminders for your daily chores.

Smartwatches

The smartwatch develop after the idea of a cellphone watch. The main function of the smartwatch is to facilitate using the smartphone. It shows the information like new messages or advises from the smartphone. So the user don't need remove it from his pocket if he has a smartwatch.

For using a smartwatch you need to connect to a smartphone.

Development of the Smartwatch:

Today's Applications:

Smart Homes & Connected Living

Smart Home includes all technical procedures and systems in the home. The goal is an increase of living and quality of life, safety and efficient use of energy. This is achieved through the intelligent integration of home automation, home appliances and entertainment media.

Some scientist warn for problems and high security holes in Smart homes because there a many projection where hacker can access unauthorized and take over control of the home system. Then they are able to collect more personal information than anybody else know about the owner. Another point is if attacker have a connection to the network of the victim he can be used as a base for attacks on other devices such as laptops, mobile phones.

Microchip Materials

Overview

Since computers have become an ever-growing part of our lives there has always been the need to get its components smaller in size. Smaller components do not occupy space that might be used otherwise and allow other features to be implemented, allow for more computing power on the same space or reduce the problem of overheating due to a lesser amount of heat emitting material. Ever since the time when computers went into mass production chips have mostly been build on the basis of silicon crystals grown to fit the specific needs of the computer and then cut in very thin layers called “dies”. For the last years alternatives for silicon as a material and even for electrical circuits as a whole are being developed.

Alternative Microchips Materials

Next-generation computer chips can not get much faster without overheating. One possible solution for this problem is the usage of carbon nanotubes that carry the excess heat away from the microchips so processing speeds could rise even more. These nanotubes may be imagined as chimneys sitting on the microchip. After these nanotubes were able to be produced effectively in bigger amounts a major problem was to get a good foundation for the chimneys to stand on if we stay in this picture, or to be more scientific – a bridge that transports the heat from the metal of the microchip to the organic material of the nanotube was needed. It turned out that organic molecules including aminopropyl-trialkoxy-silane (APS) and cysteamine created strong bonds between the nanotubes and the metal of the microchip. Also the distance between each side of the nanotube layer was reduced by this method. The scientific basis has been achieved by this research, yet it is still a long way to go until we will have carbon nanotubes in our hands inside our smart phones.

Another postsiliconic idea is to use graphene (single layers of graphite/a crystalline allotrope of carbon) to build transistors. These are already working at very high frequencies but are lacking in intrinsic voltage gain thus far. The approach of using bilayer graphene transistors has taken the technology a large step forward but it will still take time until we see this technology on a daily basis. Molybdenum disulfide is also in the running to be an alternative to either graphene or present silicon models.

On the search for better and alternative capacitor solutions Korean researchers found out that chemically treated used cigarette filters outperform carbon, graphene and carbon nanotubes in energy storage. So yet another approach was found to possibly fulfill our upcoming technological needs.

Gaming Technology

The Gaming Technology has been constantly improved. The first "Gaming-System" was so big, it needed a whole room to fit, just to play PONG. Compared to the Technology we have today it is nothing, but then again in a couple of decades we will most probably be able to enter the games themselfs in a virtual reality.

3D Printing

The 3D printing is a process of making three dimensional solid objects from a digital file. Such objects can be shapes or geometric figures made of plastic or metal. A 3D print based on complex procedures. Frequently additive processes are used, in which successive layers of material are laid down under computer control.

Holography

Holography is a technique which enables three-dimensional images (holograms) to be made. It involves the use of a laser, interference, diffraction, light intensity recording and suitable illumination of the recording. The image changes as the position and orientation of the viewing system changes in exactly the same way as if the object were still present, thus making the image appear three-dimensional.

How holography works

Holography is a technique that enables a light field, which is generally the product of a light source scattered off objects, to be recorded and later reconstructed when the original light field is no longer present, due to the absence of the original objects.[20] Holography can be thought of as somewhat similar to sound recording, whereby a sound field created by vibrating matter like musical instruments or vocal cords, is encoded in such a way that it can be reproduced later, without the presence of the original vibrating matter.

Übersetzung folgt

Hologramm

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Als Hologramm oder kurz Holo wird jede Form nichtgegenständlicher, dreidimensionaler Darstellung bezeichnet. Anwendungsgebiete

Hologramme werden in vielen Bereichen des zivilen Lebens sowie in der militärischen Luft- und Raumfahrttechnik eingesetzt. Holografisch dargestellte Objekte sind entweder auf einem Bildschirm bzw. einer sonstigen Projektionsfläche zu sehen (zum Beispiel in einem Holokubus – einem würfelförmigen Gerät, in dem das Hologramm angezeigt wird). Durch Holo-Projektoren in den Raum projizierte Hologramme scheinen frei zu schweben. Man kann um sie herumgehen und sie von allen Seiten betrachten. Hologramme können frei gedreht und gezoomt werden, Ausschnittvergrößerungen können ebenso dargestellt werden wie transparente Modelle oder Gitternetzgrafiken, die einen Einblick zum Beispiel in das Innenleben technischer Gerätschaften zu ermöglichen.

Die Unterhaltungsindustrie verwendet Hologramme vor allem für Trivideo-Sendungen. Aber auch Spiele wie etwa das im 14. Jahrhundert NGZ sehr populäre Y-Bakami verwenden holografische Darstellungen, auf der CASINO UNIVERSO wird Holo-Roulette gespielt. (PR 2235) Holo-Kuben haben die traditionellen Fotoalben und Bilderrahmen abgelöst.

Im militärischen Bereich sind die Verwendungsmöglichkeiten von Hologrammen womöglich noch breiter gefächert. In jeder modernen Raumschiffszentrale wurden die Panoramaschirme – die ebenfalls teilweise dreidimensionale Ansichten ermöglichten - schon vor Jahrhunderten durch Hologramme ersetzt. Es gibt Holo-Kartentanks, taktische Darstellungen in Form von Hologrammen und vieles mehr. Die Hologramme sind variabel einsetzbar, sie können von zentral angebrachten Projektoren aus an jedem beliebigen Ort aufgebaut werden.

Moderne holografische Darstellungen bestehen aus einem Konglomerat mehrerer Hologramme für unterschiedliche Darstellungen (Holo-Matrix). Sie sind außerdem interaktiv, das heißt man kann einzelne Bereiche der Hologramme so manipulieren, als handle es sich um materielle Schaltflächen.

   Zitat: [...] »Der 1. Offizier begann mit dem Schattenboxen, wie im Raumfahrerjargon die für den Außenstehenden mitunter absonderlich erscheinenden Hand-, Arm- und Kopfbewegungen genannt wurden, sobald die Umhüllung der interaktiven Virtuellen Realität errichtet war. Die prallfeldunterstützte Formgebung der Projektionen war hierbei berührungssensibel ausgelegt – es war nicht nur Lichtquanteneffekte, sondern real wirkende Objekte, die sich greifen, hin und her schieben, aber ebenso rasch auflösen ließen, sofern sie nicht mehr benötigt wurden. Holos und andere individuelle Formen waren meist abgeschirmt, dass sie nur für die Person wahrnehmbar waren, die sie gerade einsetzte.« [...] (PR 2515) 

Im Jahr 1345 NGZ gibt es in einigen Restaurants essbare Einmal-Holoprojektoren. Sie sollen dem Gast zeigen, wo die Zutaten angebaut/gezüchtet wurden. (PR 2348, S. 46 unten)

Auf der STELLARIS tragen die Besatzungsmitglieder Namenholos an der Brust. Das Identifikationssignet erkennt durch kurzes Antippen die Autorisierung des Kapitäns und gibt seine Informationen, wie Funktion des Besatzungsmitglieds an Bord, frei.

Übersetzung folgt

Holographisches Display projiziert fühlbare 3D-Bilder Dreidimensionale Regentropfen sehen und fühlen

Hologramme zum Anfassen versprechen Forscher der Universität Tokio mit ihrem "Airborne Ultrasound Tactile Display", das sie auf der Konferenz Siggraph vorstellten. Es soll dreidimensionale Bilder im freien Raum zeigen, die beim Berühren taktiles Feedback geben.

Die Forscher um Takayuki Hoshi nutzen das holographische Display Holo von Provision, das Bilder eines LCD mit Hilfe eines konkaven Spiegels projiziert, so dass sie wirken, als würden sie rund 30 cm vor dem Display schweben.

Das Display kombinieren sie mit dem Airborne Ultrasound Tactile Display, das sie bereits im letzten Jahr auf der Siggraph vorgestellt haben. Es kann taktiles Feedback im Raum projizieren, indem es ein Ultraschallphänomen nutzt: Acoustic Radiation Pressure. Damit lässt sich mit Hilfe von Wellenlängensynthese gezielt Druck auf Objekte ausüben.

Der verwendete Prototyp verfügt dazu über 324 Ultraschallwandler, die mit einer Resonanzfrequenz von 40 KHz arbeiten. Delay und Amplitude jedes einzelnen Wandlers können individuell geregelt und so Fokuspunkte gesetzt und im dreidimensionalen Raum bewegt werden. So soll sich in einer Fokusregion von 20 mm Durchmesser ein Druck von 1,6 gf (gramm-force) erzeugen lassen.

Um festzustellen, wo sich die Hand des Nutzers befindet, nutzen die Forscher zwei Wii Remotes beziehungsweise die darin integrierte Infrarotkamera kombiniert mit einer reflektierenden Markierung am Mittelfinger der Hand des Nutzers. Da die Szene durch Infrarotlicht beleuchtet wird, kann so die Position der Hand im dreidimensionalen Raum bestimmt und die Abbildung von Bild und taktilem Feedback darauf abgestimmt werden.

Anwendungsgebiete für die Technik sehen die Wissenschaftler bei Videospielen und im CAD-Bereich. Als Demonstration zeigen sie holographische Regentropfen, die spürbar auf einer Hand niedergehen, sowie die Animation eines kleinen Tieres, das über die Hand läuft.

Virtual Reality

Virtual Reality (VR) is an experience in which a person is "surrounded by a three-dimensional computer-generated representation, and is able to move around in the virtual world and see it from different angles, to reach into it, grab it, and reshape it."^[1]

While most current VR systems are mainly a visual experience, research has been done in the last years to expand the current systems into fields like sound (mostly surround sound), haptic (also know n as ForceFeedback) or more exotic fields like smell, taste etc.

The simulated environment can be very similar to the real world, like in military flight simulators, but every environment is currently limited by processing power, image resolution or communication bandwidth bottlenecks.

A very well known project, called the CAVE (CAVE Automatic Virtual Environment) - which is also present in the labs at the RWTH Aachen - has been around since 1992, using stereoscopic displays, head tracking, projection paradigms and real-time image manipulation to achieve a VR system which provides real-time viewer-centered head-tracking perspective with a large angle of view, interactive control and a binocular display.

How toys will shape future robots

Toys in future will shape future robots. What was it about this robot that had appealed so much to its owner? It’s a question that Tilden and other roboticists think is important – not just for toy design, but the future of robotics. For too long, robots have suffered from an image problem.

They are often perceived as mechanical, cold and threatening in our culture and it’s difficult to reverse that impression. This view of robots could be changed if they were designed to appeal to us with the same familiarity and, indeed, personality that our childhood toys once possessed.

More and more children want a toy which can speak or do something. The best example for this is Furby. Evrybody like this toy and in the past it was the most famous toy in the world. an other example was the Robosapien. He was developed to give children the feeling that robots aren't something threatening. The Robosapiens can dances, raps and a lot of more funny things. Seeing the Robosapien as a pal was far more important than seeing it as a hyperintelligent, futuristic machine.

Could other successful toys provide similar cues for robot designers? Perhaps – and it needn’t even be toy robots. The most important thing for a child is to be proud about the toy and that it surprise them. So the question for the future have to be how the devoleper of robots create it to surprise the humanity to be surprise about robots and learn to like them. Benefits from the toy development could be a good first step to reach their targets.

Long-distance virtual telepathy

Telepathy is an very interesting thema. Not for nothing this it is used in so many films which surprise their tans. An international team of neuroscientists and robotics engineers study how the viability of direct brain-to-brain communication in humans could work. The highly novel findings describe the successful transmission of information via the Internet between the intact scalps of two human subjects – located 5,000 miles apart.

One of this professors says: "We wanted to find out if one could communicate directly between two people by reading out the brain activity from one person and injecting brain activity into the second person, and do so across great physical distances by leveraging existing communication pathways," explains co-author Alvaro Pascual-Leone, PhD, Director of the Berenson-Allen Center for Noninvasive Brain Stimulation at Beth Israel Deaconess Medical Center (BIDMC) and Professor of Neurology at Harvard Medical School. "One such pathway is, of course, the Internet, so our question became, 'Could we develop an experiment that would bypass the talking or typing part of Internet and establish direct brain-to-brain communication between subjects located far away from each other in India and France?'" It turned out the answer was "=yes.="

To get an better overview about this complex thema I will give you two experiments to this study which I found on an internet page with whom I hope you could better follow what happened here:

In the neuroscientific equivalent of instant messaging, Pascual-Leone and his colleagues successfully transmitted the words "hola" and "ciao" in a computer-mediated brain-to-brain transmission, from a location in India to a location in France, using internet-linked electroencephalogram (EEG) and robot-assisted and image-guided transcranial magnetic stimulation (TMS) technologies.Previous studies on EEG-based brain-computer interaction (BCI) have typically made use of communication between a human brain and computer. In these studies, electrodes attached to a person's scalp record electrical currents in the brain as a person realises an action-thought, such as consciously thinking about moving the arm or leg. The computer then interprets that signal and translates it to a control output, such as a robot or wheelchair.

But, in this new study, the research team added a second human brain on the other end of the system. Four healthy participants, aged 28 to 50, participated in the study. One of the four subjects was assigned to the brain-computer interface (BCI) branch and was the sender of the words; the other three were assigned to the computer-brain interface (CBI) branch of the experiments and received the messages and had to understand them.

Using EEG, the research team first translated the greetings "hola" and "ciao" into binary code, then emailed the results from India to France. There a computer-brain interface transmitted the message to the receiver's brain through non-invasive brain stimulation. The subjects experienced this as phosphenes, flashes of light in their peripheral vision. The light appeared in numerical sequences that enabled the receiver to decode the information in the message, and while the subjects did not report feeling anything, they did correctly receive the greetings.

A second similar experiment was conducted between people in Spain and France, the end result being a total error rate of just 15 percent, 11 percent on the decoding end and five percent on the initial coding side.

"By using advanced precision neurotechnologies including wireless EEG and robotised TMS, we were able to directly and noninvasively transmit a thought from one person to another, without them having to speak or write," says Pascual-Leone. "This in itself is a remarkable step in human communication, but being able to do so across a distance of thousands of miles is a critically important proof-of-principle for the development of brain-to-brain communications. We believe these experiments represent an important first step in exploring the feasibility of complementing or bypassing traditional language-based or motor-based communication."

At the end it is to say that it needs a long time to become a good study about this thema and that it need much time to envolve a proper technology to telepathy informations. But in future it will be possible if they work in same speed like they do at this moment.

History

Applications of Virtual Reality

Education

Military

Sience

Engineering

Entertainment

Outlook

Full Immersion?

More to expand on :

1 Hardware
2 Software
3 Usage
4 Implementation
5 Concerns and challenges

Communication

• (mobile) phone

• world wide web

• networking ○ intranet ○ globalization

• knowledge ○ e-learning ○ social aspects (facebook etc.)

Digital infrastructure

Smart Grids

A smart grid is the plan of a new electrical grid which uses communications technology to improve the efficiency of the production and distribution of electricity. The behaviour of the suppliers and the consumers are gathered in an automated way and then used for dynamic adjustments of the grid.

intelligence city

military

○ IT warfare

○ inventions

Disadvantages of technology

Technology also have some negative aspects. It is very hard to protect the privacy and who receives the datas you entered in the web. Big companies can draw up detailed profiles of users basing on their searches on webpages. Also it is possible that our ability to communicate with real persons gets lost, and there is an increasing dependence on mobile devices and social networks. Some people feel unwell if they do not have the possibility to check the latest news on facebook etc.

Notes

1. ^ Rheingold, H. Virtual Reality. Summit, New York, 1991.

Interwiki links

• Wikipedia:Technology

• Wikipedia:History_of_technology

External Links

• http://www.bbc.com/future/story/20141009-how-toys-will-shape-future-robots (toys for future)

• http://www.hongkiat.com/blog/tablet-computing-fad-or-future/ (Tablets)

• http://en.wikipedia.org/wiki/Holography

• http://www.perrypedia.proc.org/wiki/Hologramm

• http://www.golem.de/0908/68901.html

• http://www.futuretimeline.net/blog/computers-internet-blog.htm#.VEeRYU1d7cs

• http://spectrum.ieee.org/semiconductors/nanotechnology/gain-from-graphene

• http://spectrum.ieee.org/semiconductors/nanotechnology/graphenes-new-rival

• http://spectrum.ieee.org/nanoclast/semiconductors/nanotechnology/used-cigarette-filters-could-enable-next-generation-of-supercapacitors

• http://www.technologyreview.com/news/519421/the-first-carbon-nanotube-computer/

• http://sites.ieee.org/uss-enterprise/carbon-nanotubes-could-solve-overheating-problem-for-next-generation-computer-chips/

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