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Showing 633 results
This Catalyst article looks at metals and alloys which play an important role in construction at the Olympic site, both in sports equipment and in medals. Designers must consider the properties of the materials used to make both sports equipment and buildings. These include strength, density, toughness, ductility...
This Catalyst article looks at how computer games make increasingly sophisticated use of the laws of physics to produce convincing on-screen effects. From calculating the angle that a ball bounces off a wall to modelling the frictional forces on a rally car, physics has always played a part in the development of...
An article about chiral compounds and the chemistry of flavours like orange and spearmint.
Catalyst is a science magazine for students aged 14-19 years. Find out more about Catalyst magazine: www.stem.org.uk/catalyst
This Catalyst article explains how orchids have evolved over millions of years to have a close relationship with the insects which pollinate them. Like many plants, orchids rely on insects to carry pollen from one flower to another in order to reproduce. Many plants offer a reward to pollinators, and so do some...
This article, from the Association of Teachers of Mathematics (ATM) publication ‘Mathematics Teaching’, is taken from MT217.
Jenni Ingram and Robert Ward-Penny give their thoughts on classrooms today by examining the variety of activities that can be seen in the mathematics classroom. Students are frequently...
A Catalyst article about oxygen and how it is essential for most respiration, which goes on all the time in all live cells all living organisms. The article looks at how organisms get the oxygen they need from their surroundings and how it reaches cells. It also explores how oxygen transport is monitored, which of...
Palaeontology strives to discover evidence so that we might learn more about the fossil remains of life and understand how they lived, functioned and even died. Scientists at The University of Manchester have been using state-of-the art imaging, chemical analyses and computer modelling techniques to study the...
A practical project that helps students to understand how client-server relationships are established, and what they might be used for. The example uses parallel computing across multiple Raspberry Pis to calculate a solution, as is often done when faced with complex scientific or engineering problems. The project...
Heating accounts for over half of the energy used in homes in the UK. This Catalyst article looks at buildings designed to cut heating demand almost to zero. There are over 70,000 passive houses in Europe – just a few of them in the UK. To be described as ‘passive’, a house must meet strict criteria for energy use...
Looking at trends and changes to predict what may happen in the future |
This Catalyst article explores how cyclists can use physics to explain certain limitations to their performance. Variables which may affect a cyclist's speed such as force, energy and power are considered along with formulas for calculating the correct amount of each in order to optimise performance.
The...
This article looks at how signals from the eyes are interpreted by the brain, unconscious perceptions, and what brain disorders can tell us about consciousness.
This Catalyst article explores whether the use of mobile phones increases the risk of cancer, including a recent study from Denmark which investigates the issue further.
This article is from Catalyst: Secondary Science Review 2011, Volume 22, Issue 2.
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This Catalyst article looks at the process of photosynthesis, by which plants make a range of biochemical compounds. The article explains how photosynthesis actually ties in with growth. Respiration is happening all the time in all cells in all living organisms. Taken on its own, photosynthesis adds materials to...
A Catalyst article about the International Year of Physics, in 2005, also known as Einstein Year. In the century since Einstein’s “annus mirabilis”, when he developed his theory of relativity there has been a revolution in the study of physics. This article explores the links between some of the architects of this...