Stella is back again for more science, and how are you people doing?
As you can see, I have relinked, so, please relink me!
Just some "important" announcements to make (above).
Anyway, as you people all know, we have 2 new questions on the waiting list (finally), and here is the answer.
Q1: Why can't the lift activate when we use gloves to touch the touch-screen panel and those normal button?
Wows, this is one such difficult question to answer. All I got from searching the web is jokes, escape games formula, and nothing about what I want to search about. Give me a moment to find it. Frankly speaking, I think I have experienced this before and never wondered why this would happen. Since I still got the same results as just now, I shall tell all of you what I think. I think that it is because of the pressure produced from our pressing. You see, the gloves are quite thick (you need to keep your fingers and hand arm, isn't that what it is supposed to do?) and as we exert the pressure, the pressure is "spreaded" around the many layers of fibres that make up the material of the gloves and thus, the end amount of pressure that is applyed to the button (please be mindful that I am talking about those normal kinds of button that we press) is so little that is just isn't enough to be the exact amount of pressure needed to push the button.
Can you imagine the buttons being so loose? Let's count how many trips the lifts need to travel up and down. As for the touch screen panel, I seriously am clueless about how it works. I guess it works a little like how the button works. The pressure applied on the panel is too little as compared to a person pressing the panel without any gloves. So, that's it for this question. I seriously have no idea if it is correct. It is just my assumption. Correct me if I am wrong, I am open to correct, but not too harsh a critism.
Just imagine it pressing a lift button. Sorry, I can't photoshop it. :(
Q2: Why ice sticks to your hand/finger when it is just taken out of the freezer?
It is basically due to some simple processes that we have learnt before, but never thought that it can actually be found in simple things like this. When ice is taken from the freezer, it is about -15 degrees C. The moment it comes in contact with a moist surface, like your finger or tongue, the water that had already melted due to the temperature change, instantly becomes frozen to the surface of the ice. This effect causes the ice to feel, "sticky." Once the ice warms up to 0 degrees C, it is no longer sticky since the surface is starting to melt, leaving a layer of liquid between your finger and the ice. See, it really is made up of simple processes. It is just that... Anyway, now that you know, I hope it enlightens your questions, if you ever had taught of this question.
