Back in the 1930s a flower merchant with a greenhouse full of carnations got worried when the weather forecast called for extremely cold temperatures. So he placed a kerosene burner in the...
To take or not to take, that is the question often asked about vitamin supplements. Some experts suggest that a balanced diet provides all the vitamins we need, while others claim that a daily...
Science can prove danger but it can never prove safety. It is impossible to prove that something cannot happen! Even if not a single person in a study has an adverse reaction, there is always the...
Some commercial varieties of salt have small amounts of sodium ferrocyanide added to prevent the caking (or clumping)聽that can occur under聽various conditions. When humidity is high, for example, a...
In chemical terms, it is potassium hydrogen tartrate which is basically partially neutralized tartaric acid.聽Pasteur became interested in the chemistry of winemaking and launched into a study of...
At least in a manner of speaking.聽When Hernan Cortez came to America in 1518 he was intrigued by the beautifully coloured Aztec fabrics, particularly the stunning reds.聽He asked the natives about...
