The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
Science has led us to finding out things that give us what we have today. In fact without science we would not have electricity which would mean no mobiles, internet, Facebook we would not have fridges to keep food fresh, television to entertain or even cars to travel in.
Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and Hippolyte Fizeau's measurement of the speed of light in 1849.
The science that describes the physical universe are categorized in different ways. The largest distinction in science is whether a science is pure, or theoretical, or whether it is applied, or practical. Get to know the different fields here.
The effort to find the most fundamental description of the universe is a quest that has historically always been a big part of physics. Here an overview of what physics is presented.
Every material in existence is made up of matter — even our own bodies. Chemistry is involved in everything we do, from growing and cooking food to cleaning our homes and bodies to launching a space shuttle. Chemistry is one of the physical sciences that help us to describe and explain our world.
DNA is like a computer program but far, far more advanced than any software ever created.
Mathematics is the science that deals with the logic of shape, quantity and arrangement. Math is all around us, in everything we do. It is the building block for everything in our daily lives, including mobile devices, architecture (ancient and modern), art, money, engineering, and even sports.