Diamond particles discovered in candle flames

Candle flames contain millions of tiny diamond particles, a university professor has discovered.

Dr Wuzong Zhou, of St Andrews University, found about 1.5 million diamond nanoparticles are created in a candle flame every second it burns.

The diamond particles are burned away in the process.

But the chemistry professor said the discovery could lead to research into how diamonds could be created more cheaply.

Dr Zhou used a new sampling technique to remove particles from the centre of the flame, which is believed to have never been done, and found it contained all four known forms of carbon.

He said: "This was a surprise, because each form is usually created under different conditions.

"This will change the way we view a candle flame forever."

The first candle is said to have been invented in China more than 2,000 years ago.

Previous research has shown hydro-carbon molecules at the bottom of the flame are converted into carbon dioxide by the top of the flame.

But, until now, the process in between has remained a mystery, with the discovery of the diamond nanoparticles, as well as fullerenic particles and graphitic and amorphous carbon.

Courtesy of BBC News

See the article here with some other interesting links here!!

The BBC news website is a very useful resource when it comes to explaning certain Scientific and environmental phenomenon. Just scroll down through Science/environment articles and you'll find them!

Happy reading and don't burn yourself trying to get those nano diamonds!

Experiments in Science

Experiments (practicals) make up a vital component of all of the sciences wherever or however you study them. It is through experimentation that scientists are able to determine the cause or effects of the area which they are studying.

Here at Oak House School, the Science department takes experimentation very seriously. We use a three pronged approach in training our students in the art of experimentation.

The first is getting our students used to being in the lab, getting to know the equipment and how to use it accurately and precisely.

Secondly is getting the students to become aware of the variables that can affect the result of an experiment and how they can be controlled, during experimental design, in order to get a repeatable and reproducible result.

Lastly there is the ability to analyze results to extract meaningful conclusions and also determine the trust with which you can give that result through error analysis.

These three aspects are covered in different ways in different year groups. Whether it's in the weekly practicals in 1st and 2nd ESO, the training for the IGCSE practical exam in 3rd ESO, the Science enrichment afternoons for both cycles of ESO where students can pursue their own projects or the extensive practical training they receive in 4th ESO. All of this training prepares the students to then handle the internal assessment for IB and the research components for both the treball de recerca (Bachillerato) and the extended essay (IB).

None of this would be possible without the dedicated efforts of our lab technicians who are always available for the requests of both teaching staff and students in their practical pursuits.

If you want to know more, please feel free to contact us at r.troy@oakhouseschool.com