Science

Scientific literature commonly claims that humans can distinguish 10,000 odors, but this number has never been verified in practice. Based on the results of psychophysical testing, scientists have calculated that the human sense of smell is capable of capturing at least 1 trillion odors. This proves that the olfactory system, with its hundreds of receptors, is far more superior to other sense organs in terms of the number of physically distinguishable stimuli.

A person uses their memory all the time. Some memories are easy to recall, while it can take a lot of time to recall others. Thanks to our memory, we can not just recall something but also do certain actions such as driving a car.

You have probably heard about Charles Darwin’s theory of evolution that says humans evolved from apes. But the funny thing is — Darwin never said that.

All of us have known about the order of operations in math since school. However, we tend to forget these rules, and because of this, we can make mistakes in everyday calculations.

We know that conifers are plants with cones on them. But, of course, spruce and pine are not the only trees in the group, and there are many more kinds. For example, the tallest tree in the world, the Hyperion, is also a conifer.

It seems that a calculator and a phone should have a similar numeric keypad. However, this is not the case.

All people yawn. Undoubtedly, yawning performs some important functions in our body, but which ones — still remains a question that has been puzzling scientists for several centuries.

Popcorn is a variety of corn kernels that expand as if they are popping when heated. However, not all types of corn can become popcorn.

The Adam’s apple is a lump that sticks out in the throat of men. But unlike a popular misconception, women also have them.

Most people are familiar with the sensation of numbness that sometimes appears in the legs, arms, and other body parts. This phenomenon might have very different causes and manifestations.

So you’re sitting at the dining table and enjoying your meal. In the end, you eat the last piece of your steak and think that you are done with it completely. However, your body requires from 2 to 5 days to completely digest your lunch, absorb all of the nutrients from it, and remove the undigested elements.

DNA and RNA are 2 different types of nucleic acid necessary for the functioning of all living organisms. Both are composed of a nitrogenous base, sugars, and phosphates. Both are responsible for storing and reading genetic information. But, despite the apparent similarity, they have significant differences.

Sometimes we get an overwhelming urge to pinch or squeeze when we see something cute. Maybe you saw a puppy tilting its head or a chubby baby smiling at you, and you feel compelled to squish them out of love. If you relate to these situations and are curious about why and how it happens, 5-Minute Crafts is ready to answer all your questions below.