Water. Part 2/2 : How does sweating cool us down?

Water, again, is responsible for evaporative cooling.  Water molecules are bonded to each other by hydrogen bonds. Lots and lots of hydrogen bonds are difficult to break. Water requires a high amount of energy to break these bonds. As a result, it is relatively difficult to evaporate water into a gas. If you want to … Continue reading Water. Part 2/2 : How does sweating cool us down?

Water. Part 1/2: Next time you’re drinking water…

Every single person knows that we need water to live. So we drink water on a daily basis. We are  told that drinking more water improves our skin, our hair and our metabolism. So we buy those special bottles that monitor how much water we drink in a day. But do you know why water … Continue reading Water. Part 1/2: Next time you’re drinking water…

How do Fireworks Work?

Fireworks can be characterised as self-contained explosive devices which contain a mixture of many components such as oxidising agents, fuels and metal salts. We often associate fireworks with celebration, but the first fireworks were used to warn off evil spirits. Simple firecrackers are thought to have been developed around 1000 years ago by Chinese monk … Continue reading How do Fireworks Work?

Why do Some People Think Coriander Tastes Like Soap?

Coriander, often referred to as cilantro in North America, is a herb native to southern Europe, northern Africa and southwestern Asia. Coriander is thought to be capable of lowering cholesterol,1 as well as treating fevers, nausea and stomach disorders,2 and is a popular herb of choice in both Indian and Spanish cuisines. It is also … Continue reading Why do Some People Think Coriander Tastes Like Soap?

What Causes Rusting and is it Limited to Iron

The word rust is a common name for the specific compound Fe2O3, also known as iron oxide. The iron in this compound is iron(III), meaning it has lost three of its electrons when binding to the oxygen. Iron and alloys which contain iron are abundant materials that are found in cars, bikes, chains, and many … Continue reading What Causes Rusting and is it Limited to Iron

Why we Need Soap to Clean Dirty Dishes

It is well known that cleaning your dirty dishes with water alone is just not sufficient and so, we employ soaps like fairy liquid and use dishwasher tablets to help us get rid of the dirt, but why do we need these? Soap is a generic term for fatty acid salts, with the general formula … Continue reading Why we Need Soap to Clean Dirty Dishes

Cosmic Water Series Part 2 – Saturn’s Moon Titan.

Of all the bodies in our own solar system, Titan is definitely my favourite. The reason being, it is one of the most likely candidates for life. I'm sure plenty of subscribers are rolling their eyes thinking; here he goes about Titan again. For this series it is quite relevant as Titan almost certainly contains … Continue reading Cosmic Water Series Part 2 – Saturn’s Moon Titan.