Health, Sports & Psychology
Ever Wondered About... Eggs?
...out entire species such as the osprey, sea eagle and goshawk. The green-grey colour surrounding the yolk of a hard boiled egg (and the rotten smell of sulphur that often accompanies it) comes from the reaction of iron in the egg yolk and sulphur in the egg white. When heated, the two combine to make green-grey sulphide and hydrogen sulphide gas. To avoid getting a green...