This Catalyst article looks at how scientists can use material recovered from archaeological sites to see how crops have been introduced to different countries over the history of farming. Three processes by which some plant material can be preserved are explained. The ratio of carbon isotopes from the collagen in...

This Catalyst article investigates the ideas traffic police use about speed, acceleration and force to determine what happened during road accidents. The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 2.

Catalyst is a...

This Catalyst article looks at salt, in particular the process of extracting salt from the sea in the salt factories of Trapani in Sicily. Located on the west coast of the island, the saline (salt ponds) were probably started by the Phoenicians around 3000 years ago. The article also looks at the structure of salt...

This Catalyst article looks at NASA's Mars Curiosity rover, the automated chemistry lab which landed safely on Mars in August 2012. Capable of analysing samples from the planet's surface and atmosphere, the rover will undertake two years of experiments in the hope of discovering even more about our neighbouring...

A Catalyst article about the work of Damian Murphy a music technologist. Acoustics and sound are examined in addition to the physical modelling and acoustics of buildings and environments, both real and virtual.

This article is from Catalyst: GCSE Science Review 2007, Volume 17, Issue 3.

...

A Catalyst article about the first generation of nuclear power stations. When these stations reach the end of their useful life this article looks at what is involved in decommissioning them and how the process is affected by the properties of radioactive elements.

This article is from Catalyst: GCSE Science...

A Catalyst article about a brilliant new light source under construction in the heart of the Oxfordshire countryside - the Diamond Light Source. Diamond will be a source of synchrotron light. Many of the everyday commodities people take for granted, from chocolate to cosmetics, from revolutionary drugs to surgical...

This Catalyst article looks at diamonds and shows how they have extraordinary properties: optical, thermal and when exposed to X-rays.

This article is from Catalyst: Secondary Science Review 2016, Volume 27, Issue 2.

Catalyst is a science...

This Catalyst article looks at how the structure and properties of chocolate change when it is melted and re-solidified. An experiment is described in which the differences between solid chocolate, and chocolate which has been melted and re-hardened can be found, along with a detailed explanation of the physics...

A Catalyst article about what causes faults in electrical appliances and the wiring installations in homes, and why people receive electric shocks. How regulations can reduce the risk of electrical faults and electric shocks is also examined together with the use of fuses, fuse wire and modern RCDs (residual...

A Catalyst article about how the society can decide whether energy-efficient lighting is good for the environment. With the UK Government announcement that sales of filament lamps will be phased out over the next few years the article examines their replacements, CFLs, compact fluorescent lamps. Not everyone agrees...

This Catalyst article looks at life in extreme environments on Earth which can suggest how life might exist on Mars. One of the developments in recent years that really opened up scientists’ eyes to the possibility of life on Mars has been the realization of just how adaptable and versatile life on Earth is.

This Catalyst article investigates how scientists make images using colours to represent electromagnetic radiations which humans cannot see. Human eyes detect visible light, just a small region in the electromagnetic spectrum. Using scientific instruments, many other types of radiation can be detected. Different...

This Catalyst article explores how high-speed photography can reveal how mosquitoes can keep dry while flying in the rain.

To find out how mosquitoes survive impacts with raindrops, a group of engineers from Georgia Institute of Technology (USA) developed a system which allowed them to photograph collisions...

This Catalyst article looks at hydraulic fracking, the process of breaking up rocks deep underground using high-pressure water mixed with sand and chemicals. The process has been used for decades in the energy industry to free oil and gas trapped in rock formations. However, questions have been raised over the...