Unnecessary science, as interesting facts that doesn’t have practical applications, always attracted me, but being a simplicity believer, I always felt guilty about this prone of mine, until lately that I have found a potential application for this kind of knowledge.
In previous posts, I wrote about the positive effects that learning new things produces in your brain and body. It enhances your productivity by activating your curiosity, which activates the production of dopamine in your brain.
Moreover, learning new things can also turn your autopilot off – as long as they are completely new to you-, and help you get a grip on what life is really about.
My point in this post is that any of those arguments (or hopefully both) can justify the learning new facts, even if only for the pleasure of learning new things (which turns out to be very beneficial); meaning that, maybe, learning useless facts doesn’t end up being futile.
So here are 28 of my favorite useless (useful) scientific facts, in no particular order. Judge yourselves if they are completely useless or not.
- - No matter what you do, you can’t lick your own elbow (Go ahead, try it)
- - The width of your arm span stretched out is the length of your whole body (This is not accurate to the millimeter but a good estimator of your height).
- - It is not possible to tickle yourself (Your brain has to be taken by surprise in order to react with a tickle, and you can’t fool your own brain).
- - You are about 1 cm taller in the morning than in the evening. (The cartilage between your bones gets compressed by our daily activities).
- - Every atom in your body is billions of years old (and all the Hydrogen atoms were produced in the big bang 13.7bn years ago).
- - An adult is made up of around 7,000,000,000,000,000,000,000,000,000 (7 octillion) atoms.
- - If your saliva cannot dissolve something, you cannot taste it.
- - The acid in your stomach is strong enough to dissolve razorblades.
- - You can’t keep your eyes open when you sneeze.
- - You can’t kill yourself by just stop breathing.
- - The average person expels flatulence 14 times each day.
- - Your nose can remember 50,000 different scents.
- - Everyone has a unique smell, except for identical twins.
- - The strongest muscle in the human body is the tongue.
- - The hardest bone in the human body is the jawbone.
- - Humans are the only animals to produce emotional tears.
- - Humans, apes and koalas are the only animals with unique fingerprints.
- - Koala bears are not really bears; they are marsupials and eat only eucalypt
us leaves and practically nothing else
- - Bats are the only mammals that can fly.
- - Elephants are the only terrestrial animals that can’t jump; they can smell water up to 3 miles away, and they are one of the three mammals that undergo menopause – the other two being humpback whales and humans.
- - Donkeys kill more people annually than plane crashes or shark attacks.
- - It is possible to lead a cow upstairs, but not downstairs.
- - A duck’s quack doesn’t echo, and no one knows why.
- - Millions of trees are accidentally planted by squirrels that bury nuts and then forget where they hid them.
- - There are one million ants for every human in the world.
- - Flies always hum in the key of F, and they only live for 14 days.
- - Pearls dissolve in vinegar
- - Venus is the only planet that rotates clockwise.
Please feel free to add any other fact, useful or useless.