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Beets and Urine

20 Mar 2017

After eating beets. The colour of beetroot is due to a family of compounds known collectively as betacyanins. Ingestion of beets can result in a bright red discolouration of the urine, and quite a...

Is there a risk of heart attack for women taking calcium supplements?

20 Mar 2017

The calcium issue was raised by Dr Ian Reid of New Zealand. He and his colleagues re-analyzed data from the Women Health Initiative (WHI) which looked at calcium and vitamin D supplements.聽聽The...

Salt is used to melt ice, but it is also used to make ice cream. Why?

20 Mar 2017

Why is it that in hot countries we put salt on ice in the ice cream makers to keep the ice from melting, while in cold countries we put salt on ice to melt it? In both cases, the answer is based on...

What is saltpeter used for and is it true it reduces certain 鈥渃arnal urges?鈥

20 Mar 2017

The second part of the question is easy to answer.聽 鈥淪altpetre,鈥 (the term refers either to potassium or sodium nitrate) has no effect on carnal urges.聽 The story that this chemical was put into...

Plastic Wine Bottles?

20 Mar 2017

While PET has a very low permeability when it comes to carbon dioxide, it readily allows oxygen to pass through. And oxygen is the enemy of wine! When we talk about storing soft drinks,...

Could Omega 3's be used as a treatment for ADHD?

20 Mar 2017

My question is regarding the treatment of ADHD. I'm a psychologist in聽private practice on the West Island, specializing in assessments for ADHD and聽learning disabilities, etc. I usually talk about...

Many substinence farmers in Africa grow peanuts. Why are they being encouraged to store these in sacks made of natural fibers instead of plastic?

20 Mar 2017

In North America we hear a great deal about chemicals such as plasticizers leaching out of plastic. In this case, though, the problem is not what the plastic releases but what it retains, namely,...

Why isn't the carbon dioxide from breathing a concern for global warming?

20 Mar 2017

The carbon dioxide we exhale does not contribute to global warming for the simple reason that we also take up an equivalent amount of carbon dioxide from the air, albeit indirectly. Everything we...

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