How can people blindly believe in gravity? No one can see it.?
357562
What is this gravity that you mention?  :P\n\nGood point tho, funny how it didn't exist until very recently in our history.  *hugs*
685989
I believe in many things that I can't see -- gravity, wind, radio waves, God, etc.  Usually, it is easier to believe in something one can't see if one can perceive effects of the phenomenon.
934235
The scientific definiton of "theory" is not what your average person on the street would think it is.  It is NOT a hypothesis, it is NOT just a clever idea that sounds right.  It is something that has been supported over and over again, in all aspects of biology.  \nEvolution is a theory, and so it gravity.  Gee, better start arguing against that, too...
421254
Well in my opinion... If people don't understand something then it must be supernatural.  Believeing in God is easier than researching the evidence for natural causes.  Think about it 2000 years ago people were mystified to see the sun rise everyday, 1000 years ago solar eclipses were perplexing; are you really surprised that today people still can't comprehend our existance.  Where ever science can't 100% explain you'll have God.
886763
I know several people who are scientists and believe in God.  Many of them see that there is more to the universe than can be explained by science.
547652
I asked my self the same question when I was 12 years old. I like to believe it. It was a nice idea; and then I imagine even bigger things (with the same concept) and smaller ones. But now I know it`s not possible (with the physics laws in our universe). For instance, you can not see nothing, since the diameter of the biggest atom is smaller than the lowest visible wave light. (that`s why we will never be able to see an atom, even with the best microscope ever)
1080934
i dunno i've ran into some people on here like that but that's true how could you explain anything. science, no science is something people use i think to jump away from the fact that god does exsist whether they like it or not. i've tried to make people beleive in god but some don't. so all you can do is beleive pray for those people. HE IS OUR SAVIOR SO WORSHIP HIM! GOD BLESS.
206255
Guys, this question is a followup to hemanthjk's theory on space question, two questions back.\nHemanthjk, if you post a followup question, no-one will know what you're talking about unless you give some background.  One answerer to your original question suggested you post it here.  Why not?\nAbout NASA, you need to know that there are thousands, maybe more, of people with ideas on space, time and cosmology that they'd love to have NASA think about.  So many of these ideas are totally off the wall, or have a crucial error, or are valid but already known, that it would be stupid to spend the public's money reading, analyzing and replying to them, or even trying to filter out the new good ideas.  So forget NASA, use the forum that's available.  If the idea has merit it will eventually get the attention it deserves.
233654
Nobody discovered it, if they looked up they saw it. It's existed in nature since there were clouds.
595511
Do you believe … ?\n\nBelief in One Theory\n\nAs soon as these words are uttered, a great and unfortunate polarization tends to occur.  So many take the position that “my idea is all correct and your idea is all wrong.”  These ideas can be labeled as theories, doctrines, or whatever; they challenge us to examine our ideas and the views of others.  If we are insecure, we prefer to dismiss the viewpoints of others rather than examine our own.  However, if we are emotionally mature, we tend to be willing to review our own position and seek the merit in the perspective of others.  Such emotional maturity was once defined as “I am what I am, nothing better, nothing worse, and I find it good.”  This non-competitive stance is essential for open-minded pursuit of truth and knowledge.\n\nAny one who knows about blueprints, mechanical drafting, or architecture understands that it takes at least 3 different viewpoints to be able to accurately understand and recreate anything.  The most commonly used are the top, side, and front views.  For example, a table from the top view is a long and wide rectangle.  From the front view it is narrow and long.   From the side view it is narrow and short.  It is fruitless to argue that any one of these perspectives is false.\n\nIn layman’s terms, we might say that the sky is blue.  Someone else that it is orange.  In comprehensive reality, we can admit that it is sometimes blue and sometimes orange; indeed, sometimes it can be both at the same time.\n\nScientists may argue that light consists of waves, not particles.  Other scientists might insist that light is made of particles, not waves.  However, many modern scientists are beginning to embrace the necessity of models that include both these concepts.  Moreover, the characteristics of something do not have to be restricted to only 2 or 3 substantiated theories or viewpoints; a deep understanding of things may involve a panoramic examination of multiple views, like a spinning and swerving car in a television commercial.\n\nWith that foundation, we have been asked by the author and responders to consider which view: the Big Bang Theory, the Big Crunch, or God created our universe.  To this, I am inclined to answer “perhaps all of the above.”  Let me point out the relative merits of each position briefly and how they could possibly harmonize.\n\nThe Big Bang\n\nThe Big Bang Theory remains the dominant scientific theory about the origin of the universe.  The red shift of light from distant nebulas proves that everything is moving away from a starting point, an expanding universe.  The fact that there is a relationship between these celestial objects speed and their distance reinforces their common origin.  If true, there should be cosmic background radiation, and there is.  Physics tends to support the details of the theory including the cooling that may have lead to the sequential creation of matter and antimatter particles, including quarks, protons, neutrons, electrons, neutrinos and photons.  Similarly, the relative properties of the basic elements tend to support their sequential development, including deuterium (heavy hydrogen), tritium and helium.  The ratio of one helium atom for every ten or eleven atoms of hydrogen is a constant in the universe today.\n\nUnresolved problems with this theory are the age of the universe and the basis on a “singularity” (an event which defies current rules of physics).   Also, while the Big Bang Theory defines an event of creation, it does not define what caused it to happen.\n\nThe Big Crunch\n\nIf the total gravitational force of all matter is high enough, it would slow the expansion of the universe, and then reverse it, causing the Big Crunch of everything, the opposite of the big expansion called the Big Bang. All matter and energy would be compressed back into a gravitational singularity.  This theory does not explain what would happen after this event, which may occur in about 42 billion
1130053
As mentioned in other replies, physicists don't yet have all of the "how" questions answered. Einstein, in the General Theory of Relativity, pretty much nailed the underpinnings of the current theoretical understanding of gravity. Here is my attempt at the "nutshell." I'll start with an analogy. Let's say you are driving somewhere in the midwest or plains states--essentially flat ground, with a few rolling hills. Let's say you stop your car at the top of a slight rise. As you look around you, you see flat land in every direction. You're sitting on essentially a two-dimensional plane. Taking your foot off the brake, you notice the car starting to roll forward. Your initial observation about the 2-dimensional "space" you were sitting on isn't quite accurate. The 3rd dimension (altitude) has come into play, and gravity is pulling your car into the swale. What Einstein said (and how he came up with this back in the early 1900's is incredible) was that our THREE dimensions are really a slightly inaccurate description of the world (and universe) we inhabit. A fourth dimension, time, is part of the "fabric" of our surroundings. As in the case of that slight "warp" in the 2-dimensional farmland that led to a noticeable effect on your car, Einstein said that warps in the space-time continuum are experienced as gravity. As you know, Einstein was into the "energy = mass" thing big time, and you know that mass is tied up with gravity as well. If you want to get more cozy with these related concepts, I strongly recommend David Bodanis' book, "E=mc2: A Biography of the World's Most Famous Equation" -- available as a "BooksOnTape." It's exciting, full of cool anecdotes about the heroes of 20th century physics, and... NO MATH, just concepts. Best of luck!
844498
You have uncovered one of the secrets of the universe. Simple Harmonic Motion (SHM) surrounds us in every aspect of the universe. It is the lowest common denominator. Even Newton got it slightly wrong in his First Law where he said that a body will continue in uniform motion until an external force acts upon it. There is nowhere in the known universe that gravity does not exist.\n\nConsider an air table which is flat and which extends in all directions by a million miles, and it rests on the earth. place a puck on it and give it a gentle nudge. It will move off in the direction you push it at an apparently constant velocity, however it will eventually stop and return to the point where it started because of the earth's gravitational field. It will shoot past and head off in the opposite direction until it stops again, being pulled back by the earth's gravitational field. It will continue this way forever (ignoring all friction), oscillating in simple harmonic motion. \n\nNewton's problem was that he was restricted to observing a very small portion of the SHM path, so it seemed linear.\n\nAnyway, congratulations, you are on the path to unlocking the secrets of the universe.
64566
its blind because we believe an illusion and not what really infront of us
964391
These people dont know sh!t! No body knows, so they cant solicit advice about something they have no clue about. Its all based on speculation and assumption. No body knows for certain, but its what you want to believe. No body knows if god really exists, but almost all the world believes in him. Find out for yourself rather than asking these ignorant folks on yahoo. And while your at it... maybe take a spelling lesson or two. G-H-O-S-T ... you typically learn that in 2nd grade.
263399
well scientifically people do but actually we can't prove that
1043011
no, no one has detected gravitational radiation.  here is the site of the people who are looking: http://einstein.phys.uwm.edu/
51616
What one believes is their "perception" of reality. Everyones' reality, or perception of, is different. So, if they believe it to be true then for that individual it is. Most ppl look at things in a subjective manor. The trick is teaching them how to do both,so they may draw a more realistic conclusion, or one that is a bit more accepted by society in general... Just a thought.