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LEVERS

What about young people:

circulate in various texts two well-known legends about Archimedes, namely "The way he found to resolve the request of the king, being bathed in a tub, also using fire to enemy ships mirrors Syracuse. The first idea is still used to determine the thrust experienced by bodies housed in a liquid, the second idea, however, has shown that giant mirrors are required to produce a spark.

However, with regard to the question on the handle of the previous blog, Moguel the 2nd. "B" says that required a lever 3000 times greater than the size of the universe to move the world, so that, otherwise we apply the ideas of Archimedes on levers.

built in the laboratory "your stick" with a cylinder and a ruler, also found ways to balance the lever using coins.

Observe carefully the figure represents a lever arm determined amounts of strength and power, that is, the distance from the support point or fulcrum to the point where resistance is applied and the Power, likewise, the value Resistance and Power. Consider

lever when the following amounts: 50, 100 and 300.

For

Furthermore, I remind you that you receive practical experiments, puzzles or concept maps, etc., and poems, stories, letters, riddles, jokes, etc.. regard.

Greetings. Until next time.

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SUCH YOUNG:

Since ancient times until today, have been used simple machines, too, since we wake up in the morning until we fall asleep at night, we surrounded by simple machines, so we have ample opportunity to reflect on it, so I invite you to investigate from history and from what we do every day, always thinking about simple machines. Experiments are received, practices, crosswords, maps and / or some other idea about it (poems, stories, letters, riddles, jokes, etc.).. Hands.

Archimedes of Syracuse: The great sage of ancient Greece, spent many of his studies to simple machines. Archimedes proved that by applying a relatively small force with a lever big enough, could get a larger force. It is said that Archimedes I was so sure of this principle, stating that it could move the earth if it had a proper foothold.

What do you think?

WHY WE USE MACHINES?

is very likely that when it comes to machines, think of artifacts as a bicycle or an electric appliance, but surely you used today other machines that are not identifiable. If there will be a door or uncover a bottle, if you went up a ramp or cut out paper with scissors, then you used a machine. A machine is a device that makes it easy to make a job.

Some machines run on electricity or fuel engines that require strength other animal or human. Some machines are very complex, and others quite simple. A simple machine is a device that only has one, or no moving parts. There are other simple machines, such machines are called complex.

How many machines have you used today?

Make a list of all the machines you used today since you woke up, went to school and back home.

Atte. Professor Ruben

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