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RE: How the blockchain will change the world... And how we might help it become a better world.
Thanks for comment, but I'm almost completely sure you're wrong. Plasticity is a property of a material that makes it stay in shape you put it in, it is the opposite of flexibility (which makes the material return to the shape it was in before). Hence, plastic has a high plasticity, but no flexibility.
Plasticity and flexibility can exist togather tho', but the presence of one of the properties, makes the other less dominant.
Structure kinda counters plasticity too. The more structure there is, the less the homogenous the material is, the less it is plastic.
Plastic - "(of substances or materials) easily shaped or molded."
Some materials could be consider plastic initially (concrete, clay or thermoset plastic) but not easily revertable to that state, while other materials (thermoplastic, wax et cetera) may be made plastic repeatedly using a set of conditions (heat).
Physiologically, plasticity refers to a system's ability to stay adaptable. Again from dictionary - (in Biology) "exhibiting adaptability to change or variety in the environment."
I'm happy to be corrected, but I don't think your statements are entirely informed :)
Now you're right, when you take out the flexibility part.
It's apparent that the definition for biology is slighty different than in chemistry and physics, thanks.
My information comes from school, I had a class in chemical and physical properties of clay, which contained a few hours in plasticity.
Flexibility in a biological system or in say molding and casting isn't quite the same as in a mechanical system; also for example with your explanation, concrete would be plastic after setting, as it is technically quite flexible in its liquid state. When it's set up it becomes rigid, which by your explanation would be plastic due to structure, but is no longer formable/moldable. Most people would not consider concrete to be "plastic" in its properties. Easy enough to get caught up in the technicalities though ^_^ I'm sure you can see the awkwardness in trying to explain things under those terms. Not trying to be picky or anything just constructive input :)
Nice writing by the way!
Concrete does have a property of plasticity (and what most people would think doesn't matter), it's only that the means of using these properties are different than in, say, plastic... Plastic achieves it's plasticity by heating and cooling and concrete by drying.
Well it's you that started with the technicalities, I had nothing against it and I still don't, why not be consistent? Or is it that you wanted a brief moment of awkardness? :P
Thanks.
I was actually trying to provide useful input as I've never been one for watching a video to obtain a half paragraph answer... didn't seem overly technical to me :)
I mean the idea of concrete being plastic when it's hard as rock, and not plastic when it's being poured... that seems counter-intuitive and thus awkward. If you have to carve away a material with massive grinders and diamond-tipped saws if you want to modify it, it doesn't seem very plastic. Dictionary definition supported the intuitive conclusion. I think the old ideas about brain physiology thought the brain was like said concrete, formed into particular patterns and then set. Newer research shows how things are constantly changing and re-adapting to intelligently accommodate new stimulus or challenges - leading to the concept of neuroplasticity, very contrasting to the earlier theories about brain function and adaptability.