TechNova

Now we are going to see some information about solar cookers. From the economic point of view, solar cooker are ideal cooking devices for rural sides. But when one considers the time factor, they prove to be very disappointing. Ordinary solar cookers are best suited for foods that require slow boiling point such as stews, cereals and vegetables. For a solution to this problem hybrid solar cooker has been introduced. The special feature of this cooking device is that heat energy trapped by flat plate collectors can be supplemented by burning coal or other conventional fuels. This makes it more appropriate for traditional cooking. They are a wooden box, a steel tray painted black and covered with glass sheets and an insulated upper lid with glass plates. The steel tray, which is fixed inside the box, is painted black and covered with glass sheets, which facilitates the quick heat trap. The black paint and the insulation prevent the heat from escaping. The cumulative heat build up inside the wooden box accelerates the cooking of food items in the aluminum utensils. Aluminum utensils are also coated black are placed on the absorbing surfaces for cooking. This hybrid system permits the gas produced by burning fuel in a grate to be drawn into the box through a duct under the absorber plate by natural draft- which is made possible by a chimney.
The advantage of this unit is that it can be used on cloudy as well as sunny days. The combination of conventional fuels and solar energy saves 60 per cent of cooking time. This unit can be used for cooking a large quantity of food. Conventional fuel is saved by 40 per cent. The disadvantage is that even three or four items of can be cooked simultaneously, depending upon the size of the box, the cooking has to be done in the open.

Computers are the new face of the world. Computers are electronic devices which can calculate complex calculations in matter of seconds. Now we are going to see about the generation of computers. In early days computers were made of many electronic components. It occupied the whole room and it needed twenty four hour maintenance. In second generation the size of the computers were reduced. After that many inventions in the field of computers arrived. Now we are going to discuss about desktop personal computers which are of a dictionary size. That’s how small they are for a reference!
World renowned Dell Company introduced the dictionary size desktop computers. Dell hybrid is about 80 percent smaller than the typical desktop minitower, representing the size of a dictionary. Depending on the location you can set the computer vertically or horizontally. The color of the computer can be customized. There are about six colors. Emerald, quartz, ruby, sapphire, slate and topaz are the attractive ones. This computer has another advantage as it can save up to 70 percent less energy. The PC can also be connected to a HD TV through a HDMI port. By using a wireless mouse you can change the channel back and forth. The prize of the computer is about forty thousand rupees. So why waiting just check with the site and grab your PC.

There are many ways to interact with a PC. It can be through wireless keyboards or some other means. But have you ever imagined having a cocoon in your home connected to the internet. Instead of giving commands through input devices like mouse or keyboard you can simply reach out and grab information from all around you. NAU is on the verge of developing such a virtual reality and a human sized dome. When you step into this cocoon you can see a 360 degree display screen and it has 3D surround sound. When the system loads mouse is not needed to navigate the screens. The motion tracking cameras will track your movements. There are separate cameras for tracing your movement in your arms, legs and face. A separate sensitive platform will detect whether you are walking or jumping.
The experience of using this impressive cocoon will be entirely different. You will feel completely immersed with the cocoon. The display, graphics, sound will make you feel great. The motion tracking cameras will make a realistic gaming experience. You can use your body to fight enemies in all directions. NAU is a specialized organization working for the developing better interaction with computers. The cocoons prototype will be released on 2009 and commercially available by 2014.

For a human being there are three essential things. They are food, water and shelter. Now in this modern world there is another set of three entertainment things. They claimed to be important for teen agers. They are none other than a TV, mobile and laptop. There are many manufactures involved in developing these things. The leading brands of the mobile are Sony Erickson, Motorola, and Nokia. But every field has ranking. Recently awards for the best mobile have been announced. The survey has been taken among 1000 brands by a leading survey group called TMS.
For mobiles Nokia bagged the first place in India and across Asia pacific. Nokia has been in producing mobile phones for a long time. They have now introduced latest N series model N96 which is the first phone having 16 GB memory. Sony Erickson ranked second place in India and in other countries like Singapore, Malaysia and Hong Kong.
In the television category for both LCD and plasma TV most people preferred Sony. They have gained so much popularity in Asia pacific except Japan. Samsung is in the next place. In laptops Indian people prefer HP than other popular brands like Compaq, Apple. Dell is getting good response.