The Instigator
Furyan5
Con (against)
Tied
0 Points
The Contender
Maryam_mosawy
Pro (for)
Tied
0 Points

Can we see water?

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Voting Style: Open Point System: 7 Point
Started: 1/7/2018 Category: Miscellaneous
Updated: 6 months ago Status: Post Voting Period
Viewed: 382 times Debate No: 106475
Debate Rounds (3)
Comments (2)
Votes (0)

 

Furyan5

Con

Seems pretty obvious that unless you're blind, you can see water, right? I say wrong.

Let's make this quick. Feel free to put forward your argument in round 1.

Good luck.
Maryam_mosawy

Pro

What kind of question is this?
If we can't see water, then how do we drink it?
Give me proof that we can't see water
Debate Round No. 1
Furyan5

Con

Water, like air, is colourless. We can not see water itself.

Water is denser than air. It refracts and reflects light. It also allows some visible things to float on it, or become suspended in it. We see reflections on the surface, distorted images below the surface and objects floating on and in the water. Through what we do see, we comprehend that there is water. We can't actually see the water itself.
Maryam_mosawy

Pro

Yes water is denser than air for sure
And because it's more dense, it requires less volume to refract enough light in it to be noticeable,
I mean, the distorted images below the surface shouldn't be an excuse to say we can't see water itself.
Yes we can't see air, but as you go above the Earth's atmosphere, the blue band that is around the Earth is air. You CAN see air just like how you can see water.
Think about this, the reason why we can't see air around us is because we are immersed in the air. But say for instance you dive into a pool, you won't see the water because you're immersed into it, you can only see the surroundings. But generally we can see water.
And also there has been research showing that pure water has a small tint of blue colour into it. However, if its dissolved in small quantities like a glass or a pot, it is colourless to the human eye.
Debate Round No. 2
Furyan5

Con

You say, " the distorted images below the surface shouldn't be an excuse to say we can't see water itself.".
I say it's not an excuse but merely stating the obvious. What we see are distorted images of OBJECTS, not of water. We comprehend that it's water distorting the image.

Answer this. If you look at a red balloon in a mirror, is the mirror red? Or are you seeing the balloon? Neither water, nor air is blue. They both scatter sunlight. Particularly the shorter wavelengths. So what are we seeing? Reflections of the sun off air and water molecules. Those molecules themselves have no color.

Thanks for the debate.
Maryam_mosawy

Pro

I agree with you on that part; they do scatter sunlight which is why they have colour; anything that has colour is because they absorb certain wavelengths of light.
But how does your question relate to what I am trying to say? If you look at a red balloon you can see it reflect on the mirror, but obviously the mirror isn't gonna be red... ?
But then if you said that neither water nor air is blue because they both scatter sunlight, then that just means that even the balloon isn't red, because anything that has colour is because they absorb certain wavelengths of light as I've previously mentioned. It doesn't make sense.
Even if there are distorted images of objects on water, we CAN STILL SEE WATER. Like if you just go ask a random person if you can see water or not they'll obviously say yes, and be like what kind of question is that. Water appears as colourless to the HUMAN EYE. And say you ask someone about air, they'll obviously say they can't see it, but they can feel it, and say that its colourless but why can't we see it? As I explained before, since we are immersed in air, we can't see it because our human eyes are sensitive to the wavelengths of light that pass through it. And if we were to dive into water, we can't see water because we are immersed into it.
Debate Round No. 3
2 comments have been posted on this debate. Showing 1 through 2 records.
Posted by Furyan5 6 months ago
Furyan5
Do we see the water or the reflection off the surface? Light does pass through water 100%. It's the barrier between water and air which doesn't. The barrier is visible, not the water.
Posted by Masterful 6 months ago
Masterful
As con states, water does indeed reflect light, this is true of all visible objects. For something to be invisible it would have to allow light to pass through by 100%

Water partially reflects light and partially allows light to pass through. Ultimately, because it reflects light, we're able to see it.
Con using reflection as an argument for invisibility is an argument for its visibility.
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