Why do we need to record the smell?

After the invention of the equipment that reproduced the images and the sounds, people felt the necessary to invent the apparatus that would record the smells and reproduce them later. But if recorded images help people to keep memories, to transmit information to people and to investigate the object attentively and if the audio tapes show us the voice of people and help in criminal science and medicine, a lot of people of the world asked why we need to record the smell.
First of all the apparatus that would record and keep the information about the smell will make the service of on-line magazines better giving the possibility to people to get better idea about the object, especially if the object is food, perfumes. In fact the virtual world can get the 4th dimension. It may be also useful for military surgeons during the operations at the distance being favourable for the better diagnostics of bile, urine and blood of patients.
There are a lot of companies that already use the equipment of smell reproduction, but the diapason of the smells reproduction is very small. That is why it is necessary not to make the new smell that is similar to original one, but to record and reproduce the original smell. And this was the most important.
To record the image you will use only three colours the red, the green and the blue. But to record the smell you have to make the similar receptors and the person has 347 receptors.
And the Japanese apparatus has already recorded and reproduced the smell of the orange, lemon, banana, apple and some other fruits. And the sensibility of the apparatus is even able to distinguish the sort of the apple.