+173 We can't actually feel wetness, we can only infer it. amirite?

by Anonymous 2 years ago

Moisture is the essence of wetness, and wetness is the essence of beauty.

by Anonymous 2 years ago

Mer-man

by Anonymous 2 years ago

I think I got the black lung, Pop!

by Anonymous 2 years ago

<cough cough>

by Anonymous 2 years ago

For Christ sake Derek you were down there a day!

by Anonymous 2 years ago

^(cough cough)

by Anonymous 2 years ago

Ya dead to me. Ya more dead to me…than our dead mudda

by Anonymous 2 years ago

I gave you everything

by Anonymous 2 years ago

mer-MAN! 😭🏃🏻

by Anonymous 2 years ago

There has to be more to life than just being really really really, ridiculously good-looking!

by Anonymous 2 years ago

Just because we have chiseled abs and stunning features doesn't mean that we too can't not die in a freak gasoline fight accident!

by Anonymous 2 years ago

Did you think I'd be too stupid to know what a eugoogly was?

by Anonymous 2 years ago

What is this? A center for ants?! How can we be expected to teach children to learn how to read... if they can't even fit inside the building?!

by Anonymous 2 years ago

It needs to be at least... Three times bigger than this!

by Anonymous 2 years ago

zoolander 2 wasted the chance to make ben stiller actually wear a tail

by Anonymous 2 years ago

Moist

by Anonymous 2 years ago

You ever hear of fluoridation Mandrake?

by Anonymous 2 years ago

I swear to God, a kid asked a question like this (how does the brain feel wetness) in freshman science class, after the teacher literally dared us to ask him anything to try and stump him, and the teacher totally shamed him for asking a stupid question "because you just feel it."

by Anonymous 2 years ago

Ugh bad teachers are the worst influences in the world

by Anonymous 2 years ago

but the good ones are some of the best. I still drop in and say hi to some of my previous high school teachers from time to time. I feel like I really lucked out in that regard because the majority of mine were in the "good" category.

by Anonymous 2 years ago

I got a mixed bag but i definitely remember the good ones more than the bad ones

by Anonymous 2 years ago

You haven't been on Instagram, I see.

by Anonymous 2 years ago

We were learning about properties in science. This teacher had a coffee cup and was talking about how the air around it was a gas, the cup was a solid and the coffee was a liquid because it takes the shape of what it is in. Then, he flipped over his cup, and dumped his coffee out and said see! This same teacher was saying how you can't see heat. I asked him why on a hot day you can see the waves of heat coming off the pavement. He just stared at me for like a minute. And then completely ignored the question and moved on. He also moved his tongue all over his teeth while his mouth was closed a lot. I think he was on something.

by Anonymous 2 years ago

I hope you got your answer but in case you haven't, it's hot air rising at different rates causing light to refract slightly different at points in that area. And since the heat dissipation is ever changing the refraction differences undulate throughout the affected area. Pretty cool.

by Anonymous 2 years ago

It's the difference in density, more specifically. A stable candle flame can produce a similar effect, but without all the motion you're used to seeing on a hot day, for example.

by Anonymous 2 years ago

Yeah exactly. The differences in density cause the change in the refractive index and it's like a mosaic of differences that keep changing over asphalt.

by Anonymous 2 years ago

>This same teacher was saying how you can't see heat. Well, actually you can't. You can see the effects, e.g. air refracting light due to heat.

by Anonymous 2 years ago

our physics teacher was bald and let us practice calculations by dropping eggs on his head as he walked by underneath the bleachers. He also let us shoot off rockets behind the school. cool dude

by Anonymous 2 years ago

kid: Good explanation, thanks, now I understand why I feel like you're a bad teacher.

by Anonymous 2 years ago

He isn't wrong though. "Feel" is temperature and pressure and your body is familiar with the changes to them that occur with water or wetness. This means that you brain can be easily tricked when pressure and temperature mimic wetness without actually being wet. A hand in a nitrile glove under running water does not get wet but feels wet due to the pressure and dropping temperature. Some animals do have Hydrodynamic sensors and they can detect water movement but humans assume wetness through touch.

by Anonymous 2 years ago

If you've ever touched running water with nitrile gloves on, you'll know it's trippy, your brain says your hand should be wet but it's completely dry, solely because the temperature change and texture is there

by Anonymous 2 years ago

I hate the feeling of cold water on my hands so I use dish gloves when washing dishes. We didn't have any one time and I used nitrile gloves instead - they were useless

by Anonymous 2 years ago

Do you wash dishes with cold water?

by Anonymous 2 years ago

I will rinse with cold water if im not using the dishwasher for some reason, do you not rinse off the soapy water?

by Anonymous 2 years ago

Rinse, okay. Personally, I still use hot or at least warm rather than cold to rinse. But I wouldn't *wash* my dishes with cold water

by Anonymous 2 years ago

Hot water is definitely still better than cold water. It seems to be "wetter" and grabs dirt and soap/foam better. It's a trade off of heat energy or using more potable water and time, it feels like.

by Anonymous 2 years ago

In case someone reading this wonders why this may be: The surface tension of water changes with temperature, becoming lower as the water heats up. This lower tension is why the water seems "wetter", and makes suds easier when lathering with soap.

by Anonymous 2 years ago

Can you afford hot water

by Anonymous 2 years ago

I can attest that your mother felt wetness last night, Trebeck.

by Anonymous 2 years ago

I'm sorry the correct response is "What is Idaho?"

by Anonymous 2 years ago

No Trebek that would be your mother

by Anonymous 2 years ago

We can't actually feel the carpet, just it's temperature and texture.

by Anonymous 2 years ago

I don't know man. But I do know one thing: I sure do love boobs.

by Anonymous 2 years ago

You can put your hand into bodywarm water, without noticing that your hand is underwater

by Anonymous 2 years ago

this is on the level of "we dont actually see things as they are, we just infer it"

by Anonymous 2 years ago

I never understood this. Who are you to determine which level of "feeling" this belongs to. In my book, if you're determining the texture and temperature - you're very much feeling it.

by Anonymous 2 years ago

Yeah this is getting philosophical.

by Anonymous 2 years ago

IMO this is the difference between feeling and inferring. We can feel changes related to texture, pressure, osmolarity and temperature. But we need to infer changes related to wetness (thermal and mechanic receptors) and UV radiation (sunburns). This is different from other animals, fruitflies can directly perceive wetness and the bees can see UV radiation - i.e. they have specific organs/cells to get this information.

by Anonymous 2 years ago

OP if what you say is true then help me out. I teach twenty 2nd graders that I have to teach science. Tell me how I set up something that feels wet, that isn't wet.

by Anonymous 2 years ago

Very cold/frozen sponge in a baggie

by Anonymous 2 years ago

As an amateur plumber - checking for leaks by hand feel is nearly impossible. I have to use a gray t shirt or something that will visually show moisture.

by Anonymous 2 years ago

Yep. Try it out even easier. Put your hand into the water while wearing latex gloves. You will feel habd and fingers getting wet but in fact they are just cold.

by Anonymous 2 years ago

When I was working in the lab and put my hands under running water while wearing gloves, I would feel like my hands were wet. But when I took them off my hands hadn't touched water at all. It was just my brain making an inference based on temperature and probably a few more things.

by Anonymous 2 years ago

You are correct that the sensation of "wetness" is not directly caused by the presence of moisture on the skin. Instead, our perception of wetness is inferred from other cues such as changes in temperature and texture. The skin does not have specialized receptors, called hygroreceptors, for detecting moisture.

by Anonymous 2 years ago

Bro there's no way.... You watched that YouTube short didn't you?

by Anonymous 2 years ago