Showing posts with label weird world. Show all posts
Showing posts with label weird world. Show all posts

Thursday, 17 December 2015

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!


Monday, 16 November 2015

How wolves changed the course of a river and more....

This is a video recommended by Erik S. in Bachillerato. Well worth watching and a great introduction into the workings of food webs and how a change in one part can affect the other parts (and sometimes in a most peculiar way!).

Thanks Erik!


Monday, 23 December 2013

Unitats de mesura

Quan es fa referència a quantitats el número ha d'anar acompanyat per la unitat, no és el mateix 2kg de carn que 2g de carn o que 2 lliures de carn. A més s'intenta que la unitat sigui adequada, poques vegades veurem la velocitat d'un vehicle en mil·límetres per setmana, tot i que seria possible. En aquest article: Make Physics More Enjoyable  fan un repàs a algunes combinacions curioses, com per exemple que un microsegle és aproximadament el que dura una classe, o que hi ha algú que ha intentat fer un sistema d'unitats on totes les unitats comencen per F.