Why do we laugh? Nobody knows for definite, but there are several theories. One of the theories is that we laugh as an evolved response to the passing of stress to show the rest of our herd that the danger has passed. One of the most interesting things about laughter is that it is not […]
#1245 Why do we laugh? Read More »
Why do koalas eat eucalyptus leaves? Koala have evolved to eat eucalyptus leaves because it is the most abundant source of food where they. They question might be, have the evolved to eat the food where they live, or have they moved to those area because it is abundant in the food they can eat?
#1244 Why do koala eat eucalyptus leaves? Read More »
Do we need to eat more protein? No, we don’t. With a modern diet, the majority of us get more protein than our bodies can use on a daily basis. The only people who need extra protein are world class athletes. What is a protein? Proteins are molecules that are made up of chains of
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Why is an overdose fatal? It depends on the type of drug, but opioids, which are the most common form of drug, cause death because of a lack of oxygen. When we talk about an overdose, we are typically talking about someone who has taken too many of a particular type of drug. This could
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Is earwax actually wax? No, ear wax isn’t actually wax. It is similar in consistency and texture to wax, which is why it is called wax, but it isn’t actually wax. Let’s look at what earwax is and what wax is. Earwax is technically called cerumen, which is the Latin word for wax. It is
#1235 Is earwax actually wax? Read More »
How do cats land on their feet? Cats land on their feet because they have an inbuilt mechanism called the “righting reflex”, which very quickly tells them which direction they are pointing in and to reorient themselves. Cats are famous for always landing on their feet. We all know that a cat dropped from almost
#1231 How do cats land on their feet? Read More »
Why do we yawn? There is no single clear reason why we yawn because we yawn at many different times for many different reasons. Yawning is an involuntary response, in that it happens without us thinking about it and we cannot stop once we have started, just like sneezing. In a yawn, we gradually open
#1230 Why do we yawn? Read More »
Why do we see faces in everything? We see faces in everything because it is far better to think there is a face in the forest and be wrong than to not think there is a face there and be eaten by a tiger. Seeing faces everywhere is called pareidolia. This is Greek. “Para” means
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Why do your ears hurt on a plane? Your ears hurt on a plane because the pressure in the cabin is different to the pressure in the fluid in your inner ear, which causes pain. If you have ever ridden on an airplane, you have probably felt your ears go funny. You have probably also
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Why does copper kill bacteria? Copper can kill bacteria by pulling electrons away from the bacteria’s cell wall, breaking it. There are several materials and chemicals that are good at killing bacteria. Of all the metals, only copper, silver, and zinc can kill bacteria. Some plastics have been engineered to kill bacteria and there are
#1221 Why does copper kill bacteria? Read More »
