Hi! Welcome back to our serial Hair Dyeing: Cool! And... Last time we talked about hair and its composition. This time, let't talk about how different types of hair dyes work. What determines hair color? Recall from part 1, our hair consists of cuticle (outer layer), cortex…
Please note: This is the part 1 of serialized articles which talks about hair dyeing, and this part is a brief introduction of our hair mainly. Table of contents is for the aggregate, and this serialized articles consist of three sub-parts. It is a common question to…
Source: Animals Wiki Tigers, living in the forests, are known for their rapid speed, strong bodies, and hunting skills. They are the top of the food chain on land. The closest we are to them might be in the zoos, with lions and other wild animals. However,…
“Even a small flower as small as a moss flower can bloom like a peony." Written by Yuan Mu, a poet in ancient China. This compares the "flower" of the moss to the beauty and brightness of the peony. Indeed, moss can be very impressive - regarding…
At some point of our lives, we have experienced coughs and sore throat. But when mentioning cough syrup, will this tough experience ease? Indeed, it is sweet, is it successful? Let's look at different aspects. What ingredients do cough syrup contain, and what are their functions? Comparing…
Do cats have specific facial expressions? Research shows they do. But they are not what we generally expected. Cats have various facial expressions, just like humans, we can tell the differences from this introductory image. For humans, what control our facial expressions? There are two main parts…
Research shows that when eating different kinds of food, human-beings undergo diverse emotions and feeling. Why do tastes matter to our emotions? We like sweet food, spicy food or possibly salty food, but why do most of us dislike sourness and bitterness? Let's find out in this…
As a species of animals, muscles are crucial in making us different from plants. With more and more use of muscles nowadays, our muscles are undergoing changes, discomfort or even soreness. Why do these occur? Let us travel with muscles and find out. What are some compositions…