early human life

Early Human’s Life

In early days, human life was very hard. They spent their life in caves, wrap animal skin and tree leaves over their body and hunt animals for food. With time, they discovered many good things like fire, tools, farming etc. that made their life better than earlier. But these changes in early human’s life had taken a very long time.

Early Human's Life

Today, we live a better life in concrete flats and facilitated with TV, Video, schools and colleges; have variety of nutritional foods, and better means of communication and transportation. But can you imagine a life without such facilities for us? A life where there is no big society, no house to live, no good food, no clothes to wear etc. How does it feel to listen? Yes, you are right. We are talking about the wild life. And this was the life of none other than our ancestors (Early man) who used to live in jungle and lived a very hard life.

Life style and food of early humans:

Early humans lived in jungle and were afraid of bigger and stronger wild animals. Earlier they had no house to live in and they spend their time on the trees or hide themselves behind the bushes. But it could provide them security from wild animals, rain, winter and sun heat. So, they started living in caves.

As food and clothes is the basic necessity of humans, they started wrapping tree leaves and animal skin over their body to protect themselves from cold and heat. But they needed food also to live. They do not know how to grow crops in fields and finding food was not easy. In search of food, they had to go from one place to another. Earlier, they used to eat fruits from tree or roots of plants. Then they started hunting animals for food.

Discovery of tools:

In start, early man started killing small animals for food. But they could not kill large animals with their bare hands. So, they used sharp edged stones to kill animals. Probably, this was the first tool he had started using for his need. They kept on improving their tools with time and requirements. They found that if they tied a sharp stone to a long piece of wood, they could throw it to a wild animal at a longer distance and they did not require go near to kill it. This was the invention of a spear. Later, on they improved it by making with bones and started using tools not only for hunting but also for cutting, digging and sewing.

Discovery of Fire:

Early humans ate raw flesh as they did not know how to cook their food. They had seen broken out fire in jungle severally, but did not know how to make it and how they could use it. Rather, they were afraid of it like animals. With time, they felt that they could use it for keeping themselves warm in winter. But making fire was really a big problem. So, they decided to keep jungle fire burning and started to adding dry grass or leaves to it. But it was not a permanent solution.

One day, they saw sparks coming out from rubbing stones who were rolling down from the hills or some other way and got idea to make fire by rubbing two stones. This was really a great discovery as now they were able to make fire whenever required. With time, they learnt other uses of fire too. They found that they can light up their caves and protect their family from cold and wild animals using fire. They also came to know that the roasted food is much softer than raw one and also tastier to eat and this was the beginning of cooked food.
Over time, early humans began to gather at hearths and shelters to eat and socialize. As brains became larger and more complex, growing up took longer—requiring more parental care and the protective environment of a home. Expanding social networks led, eventually, to the complex social lives of modern humans.

THE SIXTH SENSE

Sixth Sense

SixthSense is a gestural interface device comprising a neckworn pendant that contains both a data projector and camera. In 1997 that combined cameras and illumination systems for interactive photographic art, and also included gesture recognition (e.g. finger-tracking using colored tape on the fingers).^[5]

SixthSense is a name for extra information supplied by a wearable computer, such as the device called "WuW" (Wear your World) by Pranav Mistry, building on the concept of theTelepointer, a neckworn projector and camera combination first proposed and reduced to practice by MIT Media Lab student Steve Mann.^[6][7]

Example applications

During a 2009 TED talk given by Professor Pattie Maes,^[11] she showed a video demonstrating a number of applications of the SixthSense system. Those applications include:

• Four colored cursors are controlled by four fingers wearing different colored markers in real time. The projector displays video feedback to the user on a vertical wall.
• The projector displaying a map on the wall, and the user controlling it using zoom and pan gestures.
• The user can make a frame gesture to instruct the camera take a picture. It is hinted that the photo will be automatically cropped to remove the user's hands.
• The system could project multiple photos on a wall, and the user could sort, re-size and organize them with gestures. This application was called Reality Window Manager (RWM) in Mann's headworn implementation of Sixth Sense.^[12]
• A number pad is projected onto the user's palm, and the user can dial a phone number by touching his palm with a finger. It was hinted that the system is able to pin point the location of the palm. It was also hinted the camera and projector are able to adjust themselves for surfaces that are not horizontal.
• The user can pick up a product in supermarket (e.g. a package of paper towels), and the system could display related information (e.g. the amount of bleach used) back on the product itself.
• The system can recognize any book picked up by the user and display Amazon rating on the book cover.
• As the user opens a book, the system can display additional information such as reader's comments.
• The system is able to recognize individual pages of a book and display annotation by the user's friend. This demo also hinted the system's ability to handle tilted surface.
• The system is able to recognize newspaper articles and project the most recent video on the news event on a blank region of the newspaper.
• The system is able to recognize people by their appearances and project a word cloud of related information retrieved from the internet on the person's body.
• The system is able to recognize a boarding pass and display related information such as flight delay and gate change.
• The user can draw a circle on his or her wrist, and the system will project a clock on it. Note this demo hinted at the ability to accurately detect the location of the wrist.

Despite wearing the device during the presentation, Professor Maes did not give a live demonstration of the technology. During the talk, she had emphasized repeatedly that the SixthSense technology was a work in progress, however it was never clarified whether the video demos were showing real working prototypes or merely made-up examples for illustrating the concept.

Advantage[edit]

• Portable:^[13]

One of the main advantages of the Sixth Sense devices is its small size and portability. It can be easily carried around without any difficulty. The prototype of the Sixth Sense is designed in such a way that it gives more importance to the portability factor. All the devices are light in weight and the Smartphone can easily fit in to the user’s pocket Support Multi touch and Multi user interactionMulti touch and Multi user interaction is another added feature of the Sixth Sense devices. Multi sensing technique allows the user to interact with system with more than one finger at a time. Sixth Sense devices also in-corporate Multi user functionality. This is typically useful for large interaction scenarios such as interactive table tops and walls.

• Cost Effective:

The cost incurred for the construction of the Sixth Sense prototype is quite low. It was made from parts collected together from common devices. And a typical Sixth Sense device costs up to $300. The Sixth Sense devices have not been made in large scale for commercial purpose. Once that happens it’s almost certain that the de vice will cost much lower than the current price.

• Data access directly from the machines in real time:

With the help of a Sixth Sense device the user can easily access data from any machine at real time speed. The user doesn’t require any machine human interface to access the data. The data access through recognition of hand gestures is much easier and user friendlier compared to the text user interface or graphical user interface which requires keyboard or mouse.

• Mind map the idea anywhere:

With the adven t of the Sixth Sense device, requirement of a platform or a screen to analyze and interpret the data has become obsolete. We can project the information onto any surface and can work and manage the data as per our convenience.

• Open Source Software:

The software that is used to interpret and analysis the data collectedby the device is going to be made open source as said by its inventor. This will enable other developers to contribute to the development of the system