Why?

2023-03-15 14:00:37 WHY do turtles live for a long time?

The average tortoise lives over two hundred years. Lots of people mistakenly think that turtles live so long because they don't age, thanks to their slow lifestyle. In fact, turtles live so long because they simply have incredible internal organs that do not age or wear out.

Their internal organs, even in their deepest old age, continue to function just as they did when they were young. Открыть/Комментировать

2023-03-14 21:00:32 WHY do children move around a lot?

It helps them develop.

Movement is necessary for children primarily for the development of the nervous and musculoskeletal systems. With age, the capacity for volitional control and action planning becomes apparent, so the impulses that children express in movement are implemented in the mind of adults. Открыть/Комментировать

2023-03-14 19:13:42 YOU HAVE BEEN LIED TO SINCE SCHOOL, MAKING YOU A SUBMISSIVE SLAVE

HIDDEN TRUTH opens up its channel: lies by historians, falsification of science, destruction of documents, and more.

We will open your eyes to the real history of our world and tell you about the recent planetary catastrophe and global upheaval.

Join in But remember, the truth is dangerous. Открыть/Комментировать

2023-03-14 14:00:40 WHY does a drunk driver fog up his car windows?

Cause the dew point for water vapor rises if there is alcohol vapor in the air

The dew point is the temperature to which air containing a certain amount of water vapor must be cooled before the vapor begins to condense. The temperature of the glass is approximately the same as the outside temperature. If it is lower than the dew point for the cabin air, the windows will fog up. Открыть/Комментировать

2023-03-13 21:00:32 WHY can't light move faster?

The geometry of space-time is such that the faster an object moves in space, the slower time flows for it. At the speed of light, the flow of time stops. And a superluminal object would be perceived as moving backwards in time. This would allow signals to be sent back in time, which would violate the principle of causality.

In fundamental physics, the speed of light is taken as the unit of speed, and other speeds are fractions of this unit.

The question then arises differently: why are human movements so much slower than light? The answer stems from the structure of our organs, cells, molecules, and finally subatomic particles, which interact through fields that propagate at the speed of light. Открыть/Комментировать

2023-03-13 14:00:39 WHY does hot metal glow?

When quanta of light move chaotically in space, physicists speak of a photon gas with a certain temperature. Every object tends to equalize its temperature with the surrounding photon gas: a cold object is heated by this gas, and a hot object gives energy to the gas in the form of radiation.

At room temperature, this radiation is invisible photons of the infrared range. But when heated to 400-500 °C, visible red light appears; at higher temperatures, yellow, white, and blue light emerges. Открыть/Комментировать

2023-03-12 21:00:31 WHY does metal ring?

When deformed slightly, forces arise in the metal, tending to restore its original shape. However, these forces "bend the stick": the metal skips the equilibrium position and deforms in the opposite direction with acceleration. Then the elastic forces change direction, and everything repeats.

Sound vibrations arise, which pass from the metal to the air. The frequencies of the vibrations depend on the elastic properties of the material as well as the mass and shape of the object made of it. Predicting how a particular object will ring is not easy. Открыть/Комментировать

2023-03-12 14:00:32 WHY don't pilots wear beards?

Beard bans are less and less common in appearance requirements. Employers usually don't mind a well-groomed beard. However it does not apply to pilots. Moreover, they are not even allowed to wear a moustache. The reason is not the dress code, as one might think, but safety.

Excessive facial hair and piercings are thought to prevent the oxygen mask from adhering tightly to the skin. And although recent studies prove that modern oxygen masks are "friendly" with beards, airlines are in no hurry to abolish restrictions. After all, in case of depressurization of the cockpit or the cabin there will be no time to fumble with the mask. Открыть/Комментировать

2023-03-11 21:00:30 WHY does our hair get frizzy?

Let's look at our genetic roots, since they are the ones who decide whether our hair will be straight, wavy, or curly. If we were in chemistry class right now, we would see under a microscope that hair is made up of braided protein chains of keratin.

These, in turn, contain sulfur atoms - sulfides, when joined together forming a disulfide bond. It is this bond that is responsible for the bending of the hair. The fact is that curly hair is rich in disulfide bonds, while straight hair is not. Открыть/Комментировать

2023-03-11 14:00:36 WHY do mirrors change left to right, but not up to down?

The mirror is not aware of your position; it simply reflects the light that hits it. Then why, when the reflected light hits your eye's photoreceptors, does your image change from left to right?

Actually, the question of what makes the horizontal axis so special in the context of a mirror is itself incorrect. The fact is that the mirror does not reflect from left to right or top to bottom, but it does reflect backwards.

In other words, your mirror reflection is not reversed, but inverted into the third dimension, like a glove being turned inside out. Открыть/Комментировать