How did ancient people preserve food?
Refrigerators are a modern invention and have been around since the beginning of the 20th century.The pond between Antarctica turned purple, scientists still do not understand why
Purple is definitely not the usual color of a lake. Yet a pond in Antarctica suddenly changed to this color, but science is still debating the cause.Visual illusions 'dangerous' than the dress Blue Black - White Gold
No controversy like the dress Blue Black - White Gold, because simply these are illusions 100% definitely fool your eyes.