Indigo: recreating Pharaoh’s dye
What links your jeans, sea snails, woad plants and the Egyptian royal family? It’s the dye, indigo. Learn about its fascinating history and how you can extract it at school.
 
    
    
    
    
Showing 10 results from a total of 119
                 
                    What links your jeans, sea snails, woad plants and the Egyptian royal family? It’s the dye, indigo. Learn about its fascinating history and how you can extract it at school.                    
         
                    Finding out what is going on in the core of a fusion experiment at 100 million degrees Celsius is no easy matter, but there are clever ways to work it out.                    
         
                    Why is symmetry so central to the understanding of crystals? And why did ‘forbidden’ symmetry change the definition of crystals themselves?                    
         
                    With oil reserves running out, silicon solar cells offer an alternative source of energy. How do they work and how can we exploit their full potential?                    
         
                    Physics Education Technology (PhET to its friends) is the slick but not very meaningful title of a site that offers a wide range of excellent interactive physics simulations for secondary-school and university students.                    
         
                    For scientists at the European Space Agency, a mission to Mars means going to Antarctica first.                    
         
                    Something as everyday as bread can offer a surprising spectrum of interdisciplinary teaching opportunities.                    
         
                    Studying permafrost enables us to look not only into the past, but also into the future. Miguel Ángel de Pablo, Miguel Ramos, Gonçalo Vieira and Antonio Molina explain.                    
         
                    The topic of polymers is often limited to chemistry lessons. The Establish project offers some hands-on activities to investigate these materials and some of their medical applications.                    
         
                    Did you realise that fireworks cause measurable air pollution? Tim Harrison and Dudley Shallcross from Bristol University, UK, explain how to investigate atmospheric pollutants in class.                    
        
            
                Indigo: recreating Pharaoh’s dye            
        
        
            
                Seeing the light: monitoring fusion experiments            
        
        
            
                The new definition of crystals – or how to win a Nobel Prize            
        
        
            
                Solar energy: silicon solar cells            
        
        
            
                The PhET website            
        
        
            
                The white continent as a stepping stone to the red planet            
        
        
            
                Bread-making: teaching science in primary school            
        
        
            
                Revealing the secrets of permafrost            
        
        
            
                Polymers in medicine            
        
        
            
                Smoke is in the air: how fireworks affect air quality