What would happen to you if gravity stopped working?
Gravity is a natural phenomenon by which all things with mass are brought toward (or gravitate toward) one another, including planets, stars, and galaxies. We have all experienced the force of gravity. If you jump up into the air, you will fall right back down to the ground. But what if we could switch gravity off? Physics is adamant that this could never actually happen. But that has not stopped people exploring the idea. Jay Buckey, a physician, and one-time NASA astronaut says that our bodies are adapted to an Earth-like gravitational environment. If we spend time living where gravity is different, such as on board a space station, our bodies change.
It is now an established fact that astronauts lose bone mass and muscle strength during stints in space, and their sense of balance changes. An absence of gravity brings other problems. For reasons not entirely clear, our red blood cell count falls, bringing on a form of "space anemia". Wounds take longer to heal and the immune system loses its strength and your sleep will get disturbed if gravity is weak or absent.
Jay Buckey points to an experiment in which a cat grew up with one eye permanently hidden behind an eyepatch. The cat was rendered blind in the eye as a result. so If the gravity had been around, the cat would have grown perfectly. It seems likely that the rest of our bodies would respond similarly. If gravity not around for our hearts, muscles, and bones to respond to, our organs will almost certainly develop in different ways. That said, if gravity did get switched off, we would have more pressing things to worry about than the long-term effects on human development. the immediate physical consequences of losing gravity are that Earth is rotating at high speed, rather like the way a weight on a string rotates if you spin it around your head.
Things not attached to the Earth in any other way would fly off into space in a straight line that would take them away from the surface of the Earth. Anyone unfortunate enough to be outside at the time would quickly be lost. People inside buildings would be safer because most buildings are so firmly rooted to the ground that they would stay put even without gravity – at least for a while. Anything else not nailed down would also float off. Earth's atmosphere and its oceans, rivers, and lakes would be one of the first things to drift away into space. A similar fate would befall the Sun. If the force of gravity didn’t hold it together, the intense pressures would cause it to burst open in a titanic explosion.
The same thing would happen to all the other stars in the Universe. However, because they are so far away, it would be years before the light from their death throes reached you. Eventually, If that thing had happened, the Universe wouldn’t have had the stars or planets. There would just be a diffuse soup of atoms and molecules, drifting around not doing anything much.
Pada artikel di atas terdapat Conditional Sentences yaitu :
Conditional Sentences Type 1
Paragraf 1 Kalimat ke-3 : “If you jump up into the air, you will fall right back down to the ground”
Paragraf 2 Kalimat ke-4 : “your sleep will get disturbed if gravity is weak or absent”
Paragraf 3 Kalimat ke-5 : “If gravity not around for our hearts, muscles, and bones to respond to, our organs will almost certainly develop in different ways”
Conditional Sentences Type 2
Paragraf 3 Kalimat ke-5 : if gravity did get switched off, we would have more pressing things to worry about than the long-term effects on human development
Paragraf 4 Kalimat ke-7 : If the force of gravity didn’t hold it together, the intense pressures would cause it to burst open in a titanic explosion.
Conditional Sentences Type 3
Paragraf 3 Kalimat ke-3 : “If the gravity had been around, the cat would have grown perfectly”
Paragraf 5 Kalimat ke-3 : “If that thing had happened, the Universe wouldn’t have had the stars or planets”
Referensi:
http://www.bbc.com/earth/story/20160212-what-would-happen-to-you-if-gravity-stopped-working
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