Restoring a cup radioactive source with a loose foil

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Many esters have distinctive odours, which has led to their use as artificial flavourings, perfumes and fragrances. Many occur naturally but some are now manufactured industrially. The methods outlin.. more

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Describes clearly, with photographs and diagrams, how to identify, set up and use an electron beam tube (Teltron tube). Includes how to safely use EHT power supply needed for such tubes to work.

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This practical procedure includes 4 activities to help students recognise and understand the problem of noise induced hearing loss (NIHL). It also includes a number of industrial examples which powerf.. more

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In this edition are notes on the supply of cheap but poor quality chemicals, poor quality Bunsen burners, relocating chemicals during and after a refurbishment, a useful technician tip on a way of tem.. more

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