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.
Please try again later. Basic 1.5 min talk on how it works, taken from a larger film which was used to educate GE employees on how to weld correctly. Irving Langmuir from General Electric invented atomic hydrogen welding. the video has diagrams and animation to help show the basics on how metals are annealed. 1  Science & Technology.