Benzene is one of chemistry's great stars. It has numerous applications, and is the basis for manufacturing many more useful compounds. But did you know its structure was a subject of a lot of controversy in the 19th century?
Just a hundred years ago, drugs were expensive and had to be obtained from exotic tropical trees. This changed with the discovery of an artificial compound called Salvarsan. It cured the dreaded disease syphilis and laid the foundation of modern medicine.
Quinine has been used as a cure for malaria since the 17th century. It was only later in the 1940s that other drugs replaced it. Discover how the medicinal properties of this wonder drug were discovered.
Over millions of years, plants and animals have evolved materials with amazing properties - the sticky feet of geckos, spiders' silk, self-cleaning lotus leaves. Scientists are now learning to make products in the lab that imitate their properties; these are called biomimetics.
Every once in a while we fall sick. Our parents use a thermometer to check how sick we are or if we are pretending so that we don't need to go to school. This little instrument is very reliable in telling how warm we really are.
Heat and cold are two important factors that are critical for most chemical reactions. In science, the absolute zero temperature of a substance varies from the zero degree that you see on your thermometer.
We have heard that photosynthesis is the process by which a plant converts solar energy to chemical energy by using chlorophyll. What you might not know is that scientists in France have discovered a way to use the same photosynthesis into electrical energy.