Hii,
I am back home and readjusting to the city life. Being a hosteler for four years has definitely had its toll on me. Here I get scoldings for not sleeping on time, waking up late, skipping breakfast, avoiding a bath, drinking too much coke, chatting online, watching soaps… basically everything I do! Its tough having small talk (something which is NOT about the new version of linux or that scandal at view point) with grandfathers and uncles and aunts at wedding receptions when you have interacted only with your classmates all this while. You have to be careful not to remember people’s mother, sister and family during conversations. You no longer have to buy the cheapest stuff and pick out the most reasonable restaurant when you are dining with family. It takes getting used to.
Today I talk about “the forgotten sense”. How often you smell something and you remember an event related to it years ago. This happens instantly. So many times we ask ourselves “Where have I seen this before?” or “Where have I heard this before?” but we almost never forget something we’ve smelt. Smells serve as index keys into our memories. Smell evokes memory in a way that no other sense can. We rely on our eyes and ears even to the extent of suppressing our awareness of what our nose tells us.
Whenever bleaching powder is used to clean the bathroom, I have this strong urge to go swimming. The pungent smell of chlorine reminds me of the time I used to go swimming with mom, dad and my brother. Me and my brother used to bring the pool to life. We were the (relatively) expert swimmers there. Being the usual attention seeker I am, I used to perform all sorts of acrobatics in the pool - somersaults, flip turns, standing upside-down. One of my favs used to be dives from the springboard. Sadly I didn’t find a springboard at any other pool I went to after that one. We used to have underwater fights 25 feet below at the bottom of the pool! We used to bet on who can hold his breath the longest and he would always cheat to win.
Humans can identify about 10,000 different smells. The process of olfaction is not clearly understood till date. We are not sure how smells are stored. It is believed that they form a chemotopic map in the brain. We don’t even know how or why smell is so intrinsically related to memories. Many people use pictures to remember difficult things like a list of telephone numbers or digits of pi etc. It may be interesting to see if smells can be used in a similar or perhaps a better way! Another interesting thought is that when they show these 4D and 5D movies, they can add another dimension by adding smell related to the scene.
Two amazing facts to end the post :
* Body odours can be used to deterministically identify blood related kin (parents, children and full siblings)!!
* Females can smell many things males cant!!
PS : If you got interested by what you just read, you can google for “smound”, “digital nose” and “hyperosmia”.
Posted by Rohan Khot 