Carbon is also found in many compounds including carbon dioxide in the Earth's atmosphere and dissolved in the oceans and other major bodies of water. It is used for fuel in the form of coal, methane gas, and crude oil (which is used to make gasoline).Hydrocarbons that form many fuels such as coal, natural gas, and petroleum also contain carbon. It is used to make all sorts of materials including plastics and alloys such as steel (a combination of carbon and iron).What we know about our past and the way people lived many hundreds of years ago is constantly changing.
It is even used to make black ink for printers and painting.
Graphite is often used in making batteries, brakes, and lubricants.
All living things have the same percentage of carbon-14 in them, but when they die the level starts going down.
Scientists can measure the level of something which used to be alive and work out when it died.
Stable isotope analysis uses isotopes which are not radioactive, like carbon 13, so we call them stable isotopes.
The BBC programme ‘Meet The Ancestors’, presented by archaeologist Julian Richards, radiocarbon-dated some skeletons in 1998. And from everything I’ve seen around the web, so do most of us. Carbon-14 dating was the first thing to come to mind understanding what goes on to make it accurate or inaccurate is so important.So, when someone alerted me to a new online program to make graphics without having to buy fancy software, I jumped at the opportunity. Let me know what you think and watch for the link on your favorite social network!In 1949 a scientist called Willard Libby discovered a way of working out how old objects are by measuring what is known as their ‘radiocarbon date’.All objects that have the [infopopup:element] called carbon in them (like plants, animals, clothing, and even humans like you and me!Diamonds are also used for their hardness in cutting tools and precision instruments. People have known about carbon as a substance since ancient times.