Cleaning Gravestones
Reader Barry asks how to clean the family gravestone: It’s a bit hard to tell what the discolouration is but …
Chemistry at Home
Why Does Sugar Cause Tooth Decay ?
Sugar is not corrosive, in any sense of the term, so how does it causwe decay in our teeth? Well …
How to Remove Blood Stains
Blood stains can be very hard to remove, particularly if they’ve been there a while, particularly if they are on …
Carbohydrates and Ironing Aids
What is in ironing aids and how do they work? Ironing aids (such as Fabulon) have four components: 1. Water. …
Suds and Fizzing
We associate suds with cleaning. This also extends to fizzing. When you add Harpic toilet cleaner to the water in …
Suds and Cleaning.
Why do we like sudsing up our dishwater when doing dishes? The obvious reason is that we think that the …
Where do Suds Come From?
There is nothing we love more than a good soapy lather when washing dishes. What causes the suds, and why …
Stain Removal #1: General Principles
The questions I get most commonly asked revolve around stain removal. And it’s not just me – people like Shannon …
Uncle Sam and Mr Sheen
Two of the catchiest TV jingles of all time were the ads for Uncle Sam and Mr Sheen. Who were …