The removal of scale from hard water from sinks, taps, toilet bowls, washbasins, baths, kettles and steam irons. All use some form of acid as the active ingredient.

This term, Futureminds has articles about the use of Hydrogen as a fuel, the difficulties for D&T, Equality and Diversity, Design Ventura, virtual F1 in schools, technicians tips, the Tunnock Tea Cake challenge, and, of course, the small print.

This edition of Futureminds is a special bumper edition - we asked people to write about their vision for the future of D&T. There are almost 20 interesting and different visions.

Please get in touch if you have any views on what you read here, or if you would like to contribute to a future edition: dt@cleapss.org.uk

If you can't find the answer you're looking for here then you might want to give our helpline a call on 01895 251496 or via our online helpline form.