What gravity? This seemingly innocent question has kept physicists awake at night for centuries. A very simple answer is that this force is responsible for pulling two bodies with mass towards each other.

Here on Earth, we experience gravity all the time when we are pulled down to the ground. This is why we’re grounded (and why falling is so easy and painful). What we almost don’t realize is that we’re also pulling the planet towards us, but because our mass is so much less, we make little difference in this regard.

Earth’s Gravity

A large piece of rock traveling through space, the planet is big enough to hold many things around it. We deal with many of them in our daily life. This gravity produces Weight of everything.

Even flying objects are affected by it. Fights with birds and planes effect gravity use creative solutions, but cannot ignore this power. Everything falls to the ground here.

And as it falls, it accelerates. because gravity promotes acceleration of objects. Because the planet is the same, the applied force is the same. But different objects reach the ground at different times, as there are other effects that can stop such a fall.

For example, air provides resistance and slows a paratrooper jumping out of an airplane. Because under that person’s body there is an atmosphere column that cannot be ignored.

When paratroopers jump, they escape gravity (Source: Shutterstock)

It accumulates under the parachute and the jumper must clear a path to pass. The same happens, for example, if we drop a piece of paper and a piece at the same time from the same height.

But there are other things that depend on it as well. gravity of the Earth that does not reach the ground. Satellites are a good example of this. Both artificial and natural – our Moon – are trapped by the force that attracts all things.

What keeps them suspended is movement. If it weren’t for the planet’s attractive force, these objects would fly away in space, but gravity it pulls them back and therefore they live in an endless dance of escape and catch in almost perfect balance.

foundation for life

But in addition to falls and somersaults, gravity affects life on the planet in many ways. As we evolved to live in this world called Earth, we had to adapt to its effects, and nature was not devoid of adjustments.

This gravity for example, it affects the strength of our bones and muscles. After all, their role is precisely to combat our body’s weight and our natural tendency to horizontality.

Life has adapted to Earth's gravity (Source: Shutterstock)

In gravity zero muscles no longer need to exert a lot of force to move and be prone to atrophy. Bones also feel the impact and eventually lose their density. This is especially true for astronauts who can lose up to 60% of their bone mass.

That’s why on space missions, passengers are strictly supervised and go through a rehabilitation period when they return to the ground.

Another affected physiological feature is blood pressure. Thanks to gravity, blood is naturally more concentrated in the feet and less in the brain. But in space this gradient disappears.

Lack of gravity has serious health effects on astronauts (Source: Shutterstock)

The problem is, we’re designed to work this way, and if we feel the pressure in our heads easing, we trigger mechanisms to correct the problem we’ve identified. in the case of gravity zero, nature’s solution was to pee.

Urine is the easiest way to remove excess fluid. But when it comes to astronauts, that overhead is only in sight. As a result, it can lose 20% of its blood volume within a few days, with alarming results.

Another important point is our immunity. This gravity It is necessary for the functioning of defense cells, and changes in them can reduce the protection of our body. This always puts astronauts at risk of infection by pathogens that could easily be fought on Earth’s soil.

This gravityMore than just a physical phenomenon that causes falls in public places, it has decisive effects on our lives. Additionally, it helps maintain control over the planet’s environment.

It is thanks to him that we have the phenomenon of tides, winds, climate and all the complex aspects that allow life to emerge. And as uncomfortable as it may be at times, we would be absolutely nothing without that rambling in our daily lives.

Source: Tec Mundo

Previous articleStreamer Nearly Sets Kitchen On Fire, Calls for Help on Twitch
Next article7 James Cameron movies to watch before Avatar 2 premieres
I am Bret Jackson, a professional journalist and author for Gadget Onus, where I specialize in writing about the gaming industry. With over 6 years of experience in my field, I have built up an extensive portfolio that ranges from reviews to interviews with top figures within the industry. My work has been featured on various news sites, providing readers with insightful analysis regarding the current state of gaming culture.

LEAVE A REPLY

Please enter your comment!
Please enter your name here