Article of the week

A twist on the candle mystery

In a classic demonstration of the candle mystery, three lit candles of different heights are covered with a gas jar (see figure 1) and the tallest candle goes out first. This happens because carbon dioxide produced from burning has a higher temperature, so it rises and accumulates at the top of the…

Read more
Discover

We cover a wide range of scientific topics and many articles are additionally available as translations in different European languages.


understand

Understand

Explore cutting-edge science and real-world applications.

inspire

Inspire

Discover projects, people, and resources.

teach

Teach

Find ideas and teaching materials for classroom activities.

Teach

Tea-time chemistry

Tea is a refreshing drink – and it can also help students to learn about important chemical reactions, as these simple experiments with infusions…

     

Understand

Ten things that affect our climate

Human activities continue to influence our climate on a global scale, but a number of other interlinked mechanisms also play a…

             

Understand

Fusion vs fission

Fusion and fission: both release energy, but how do these processes differ and what are the implications for electricity…

         


Get involved