why crying when chopping onions

Onions make you cry but also pull the flavours of most dishes together, whether it’s raw, caramelised or baked. Actually, there are very few dishes that we wouldn’t add a bit of onion to! Imagine the situation: You are happily chopping onions for your lunch and… what happens next? Exactly, your eyes sting andRead More →

Why do books smell so good lignin cellulose

Forget the smell of freshly baked pie or freshly cleaned laundry, for book lovers, nothing beats the smell of books. Actually, if there is one thing bookworms can universally agree upon, it is that there is nothing quite like the smell of a virgin or old book. Smell is chemistry, and the chemistry of old and newRead More →

Oxygen is the most abundant element on the Earth’s surface and is critical for chemical reactions that keep the body alive, including the reactions that produce adenosine triphosphate (ATP) (a complex organic chemical that provides energy to drive many processes in living cells). Nearly all of the oxygen found on Earth todayRead More →

muscle strong human body stronger

The muscular system is responsible for the movement of the human body and muscles come in all shapes and sizes. In the muscular system, muscle tissue is categorized intothree distinct types: Skeletal muscle: Skeletal muscles (also called voluntary muscles) are attached to bones by tendons and produce all the movements of body parts in relation to eachRead More →

Darwin

Darwin said that humans and monkeys have a common ancestor (around 5-10 million years ago), freaking out creationists by the fact that humans are apes. Therefore, humans sit on the same branch of the evolutionary tree as great ape species, such as chimpanzees, our closest living primate relative. By comparingRead More →