Every morning I get up and put on this kettle to boil water for some coffee. I try to fill about the right amount for just 2 mugs of coffee (one for me, one for my husband.) This kettle is high quality stainless steel, gets nice and hot very quickly. But... it's heavy, so I don't want the kettle to weigh any more than it needs to.
My question is about the perceived weight. When the water is boiling (not just a low simmer, but a rapid boil), the kettle always feels significantly heavier. Is this possible at all, or is it my mind or body playing tricks? Does the agitation of the water do something to the perceived weight?
I know almost nothing about scientific principles; yet problems, or questions like this can sit in my mind and I think about them every time I'm in the situation again. I've been experimenting for months with this, changing the hands I use to lift the kettle, both when I first fill it from the kitchen tap, and when I pour it once it's boiling. (My left wrist tends to hurt, in general, because I hold my cell phone in that hand almost exclusively and I'm pretty sure it's got carpal tunnel now, so this whole thing is not because I'm using different hands before and after. I use the same one hand (sometimes the left, sometimes the right.) I've even tried using two hands to lift.
No matter what I do, I feel like the kettle weighs more later, on boiling.
Once I do the first pour into the filters, walk away, come back to fill the second time, I easily notice a difference in weight.
So if the heating and agitation of the water creates [what? instability or something?], is it real or perceived, and what's the scientific name, or principle, associated with that? I'm just curious. (We could use more science and learning on GAG, no?)
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I TRUST you will understand me.
When you heat the water you increase something scientifically called ENTROPY.
Stephen Hawking defined it in one of his equations, I can look it up in google if you want me to.
So the force of gravity exerted on your hand by the weight of the kattle and the water it contains, by the sum of the mass [is what you referred to as weight]. This thing doesn't change, even if it does, it's not significant. In fact the kattle is supposed to weigh less after boiling because the water is evaporating and losing a portion of its mass.
But what I think you're describing if I can use my experience in such observation, is that you find yourself having to use more force after boiling. Because the water is not static. its particles are moving in a circular direction, or chaotic direction, adding tiny force to that of the weight as it moves against the force of your hand.
I could be wrong though.
😂 Too much explanation for such observation. lol! I got C- in my thermodynamics 😩
I love it! Thank you. Very well explained. 👏
Not quite! lol. This is the kind of answers that I make in an exam wishing to have a special mark only to find out later that the world sucks and it's too hard for me as ADHDer.
But I am sure entropy got to do something with E=MC2 😠😤😩😭🥺🤬😖🌪️🌩️☔⚡🌪️🔥💀. I am gonna go read some chemistry. lol
lololol. Sit down and I'll give you a hug and make you a cup of tea.
thanks for MHO