Typical Flu Duration. For most people, the flu lasts anywhere from about three days to two weeks. If it lasts much longer than two weeks, you may have developed a secondary infection or one of these common flu complications.
More silver facts. 1  While aluminum is the most common metal found in the Earth's crust, the most common metal found on Earth is iron, mostly because it makes up such a large part of the Earth's core.2  More iron facts. 3  Copper is a good conductor of electricity and is often used for making wires.ore silver facts. 1  While aluminum is the most common metal found in the Earth's crust, the most common metal found on Earth is iron, mostly because it makes up such a large part of the Earth's core.
The physical properties of different metals make them useful for different purposes. For example, copper is used for electrical wiring because it is a good conductor of electricity.Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity.hese properties make metals useful for many purposes. For example: 1  Iron is used to make cars and bridges because it is hard, with a high tensile strength. 2  Copper is used to make electrical wiring because it is a good conductor of electricity.