Dr Voge is travelling by ship from south of the equator to the north.
He has a nice little second class cabin which has a bathroom, but no window.
Dr Voge has no compass or any other scientific instruments.
Yet, without leaving his room or talking with anyone, Dr Voge knew exactly when the ship crossed the equator.
We all know how clever he is – but how did he know?
Answers on a postcard…
There is a chemical that is very dangerous. If this chemical is inhaled, it can be fatal. Under certain conditions, contact with the skin may cause a burn. However, once a person’s body becomes dependant upon this chemical, prolonged separation will almost certainly cause death. Although scientists are well aware of this chemical and it is found in nearly every drinking source, nothing is being done to try to eliminate it…
But what is this chemical?
Well not quite!
However, here is a question for all you budding chemists…
How many moles are there in a mole of moles?
Which of the following elements does not belong in the list below?
Carbon, Neon, Xenon, Iodine, Silicon, Phosphorous
Answer below, and remember, a reason for your answer please!