In focus – Page 13
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The MoleTrade secrets... Helium balloons
Secrets of the trade: Where does the helium gas in a party balloon come from? Jonathan Hare finds out…
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The MoleMake your own spectroscope
Find out how to build your own spectroscope using an old DVD to explore colour and the splitting of light in this article from the ‘Avogadro’s lab’ series.
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The MoleNicola Dinsdale: Flying the chemical flag
Daniel Johnson finds out about the chemistry behind aerospace engineering and life as a ‘test tube pilot’
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The MoleMembranes’ twisted secret
Looking down a microscope at the nanoscale is helping us to better understand the world around us, explains Josh Howgego
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FeatureDeadly mushroom chemistry
Can you tell the difference between a tasty paddy straw mushroom and a toxic death cap? Emma Shiells talks to the experts about the potentially deadly chemistry hidden in those gills
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FeatureThe science of sorting
Many of the UK's local authorities collect recyclable waste mixed together in the same bin. Mike Tingle discovers how differences in chemical and physical properties are used to separate a wide variety of materials
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The MoleChocolate’s champion chompability
Tom Husband melts into the sumptuous chemistry of chocolate’s silky smooth texture
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The MoleTrade secrets... Piezoelectric crystals
Secrets of the trade: Gas lighters, mosquito bite relief and police sirens – Jonathan Hare explores piezo chemistry in action!
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The MoleWhat is vitamin C and how can we test for it?
Find out about vitamin C or ascorbic acid and try a short experiment to test for its presence using iodine in this article from our ‘Avogadro’s lab’ series.
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The MoleTrade secrets... How to make a printed circuit board
Secrets of the trade: Jonathan Hare explores the chemistry behind your favourite gadgets
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FeatureHow much horse meat?
It's a simple enough question, but the media, the public and even government officials are having trouble understanding just how much horse meat is in some processed food. Ian Farrell makes sense of the confusion
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The MoleA nose for trouble
Ian Le Guillou finds out how new technology and chemistry are catching up with sniffer dogs in the race to rescue people trapped in disaster zones
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The MoleTrade secrets... Bio or non-bio washing powder?
Secrets of the trade: Jonathan Hare looks at the science of getting your clothes clean
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The MoleWhy are there colours in soap bubbles?
Explore the chemistry of bubbles and what causes the colours we can see in them, and find out how you can experiment with soap films and bubbles yourself.
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SoundbiteDetective work and food fraud
How did horse meat remain undetected in the food chain for long enough to reach supermarket shelves? Ian Farrell investigates
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