JK2年です♪高校生にも分からないような、超高レベルの英文を私にぶつけてぇ～☆

JK2年です♪高校生にも分からないような、超高レベルの英文を私にぶつけてぇ～☆

Anything we don’t want attached to us ( i.e. dirt ) can be stuck to us in one of two simple ways.

1. trapped in microscopic ＊crevices. For instance the dirt you get on a dry dusty road.

2. or moisture makes it ＊adhere. For instance the dirt you get from a muddy road.

1) In both cases, a good hosing down with plain water with perhaps a little rubbing will do a reasonable job of removing the dirt. Soap isn’t really necessary yet.

But what if the dirt particles have a slightly oily coating? They will stick to your skin like wet mud. In addition, the dirt doesn’t have to even bring its own oily coating. Your skin many times has enough oil on it to make dirt particles stick. 2) But unlike the mud, this dirt is going to stay stuck because oil doesn’t evaporate and dry up as water does. Nor will a spray of plain water dislodge it because it will simply roll off the dirt as water rolls off the oil. Assuming that the force of water isn’t sufficient enough to dislodge the oil of course.

To unstuck the oil adhering dirt is to seek out and destroy the sticky oil itself. A liquid can then be applied and the dirt will fall off and be swept away. You could fill a sink with alcohol, ＊kerosene, or gasoline as they are all good ＊solvents for oil. 3) In fact dry cleaners tumble our clothes in a barrel full of a solvent such as ＊perchloroethylene an organic solvent that is a phenomenal dissolver of oil. The problem with these solvents is they are all toxic to greater degrees.

The answer is soap. But soap doesn’t really dissolve oil like solvents do. It works by enticing the oil into the water so the oil and its dirt can be flushed away. It also disturbs the surface tension of water. In other words, it makes water lie flatter and not ball up like a rain drop. This allows the water to get into micro crevices even better and wash away the dirt.





いかがでしょう＾＾