Best Inventions During 2011 Beneficial To Mankind

*---- New Tablet Computer
During March 2011, computer company Apple introduced new version iPad 2 of its tablet computer iPad. This tablet computer was 33 % thinner and 14 % lighter in weight than the first one. Moreover, it has been facilitate with camera and its new processor was more powerful. In the United States its price starts from $ 499 while in Pakistan its price is PKR 80000. It became so popular and its demand was so high that when it was presented for sale people were waiting in queues yo buy it.
*----- Apparatus For Searching Insects
In the homes cockroaches, bed bugs, ants and grass hoppers usually make the utensils dirty or even fall into foods. Most of the insects die with sprays but it is difficult to know where they are hidden in the kitchen or rooms. In the USA the job is done by dogs they can smell the insects and can know where are they hidden. Because, they have 120.3 million cells for smell in their nose , while human being has only 5 million cells. Therefore dogs can smell the pheromones of the insects. Insects contact each other with the help of pheromones.
Now an American inventor Cris Gogain has developed an apparatus "Bed Bug Detective" like the nose of a dog. The fan of the apparatus enters air in the place where some insects are suspected to be present, then sensor works and gets to know the smell of any insect, if that is there, the red light of the apparatus turns on and one can spray there to kill the insect. This apparatus costs $ 200.