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That has not lived in vain ... Dorina and Hypatia


Upon receiving your invitation, I was surprised and very flattered. Tycho suggested that I join him as an assistant in his astronomical observations and calculations. The great astronomer was interested in the rigor of my studies, and me from him, the accuracy and thoroughness of his observations. Tycho was

person irritable, suspicious and arrogant aspects of his character in his youth led him to lose his nose in a duel with the sword, because a discussion about mathematics. Precise and unconditional

sky watcher since childhood, Tycho collected abundant data about planets, stars and comets. Having witnessed the emergence of " Stella Nova", years later still passionate when describing the moment of discovery: " In my practice, I was watching the stars in a cloudless sky, I noticed that a new star extraordinary, that exceeded the other in bright, almost glowing directly above my head, and because, almost from my childhood, I had perfect knowledge of all the stars of heaven, there is no great difficulty in achieving such knowledge, it was entirely clear to me that in that place in the sky never before been any star even the smallest, and, much less one as remarkably bright as it . "

Barely instruments other than a sphere and a compass, Tycho smashed with this discovery, the Aristotelian principle of the immutability of the heavens.

He never accepted the new Copernican system, but wanted to establish a compromise between it and the consolidated system Ptolemy. Tycho assumed that the five planets revolved around the sun, which, along with the planets, was once around the Earth once a year. Therefore, the Earth was still the center of the universe ...

The October 13, 1601, the great astronomer attended a banquet the Emperor in Prague. Not wishing to violate the protocol leaving the table before his host, resist the urge to urinate until the point of falling ill. His agony lasted eleven days with fever and delirium in which he kept repeating "Ne vixisse videar frustrated" ("You have not lived in vain.")

Before he died, and to ensure that her wish would fulfilled, Tycho gave me access to all data had been collected carefully over his life, and though their model is not correct, the information I had provided proved essential for my further description of planetary motion.

But that's another story ...

Johannes Kepler.

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A

Listen ...

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To you who write

to you who think

to you who feel

to you to worship.

I thank you.

For

encourage and join us,

for reading and loving

,

by

laugh and cry.

feel your heat ...

To you that you play

to you who danzáis

with the moon and the stars

together in the "Enterprais."

Thank you both.

An embrace infinity.

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Are we free?

The other day I heard this in a movie ...

"Freedom is not just a dream,

behind

walls that we build ourselves."

As you reflect on this question I leave you with wonderful music ...

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An embrace infinity. Galatea

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ORION

hide in your belt does not ride the horse,

adorning the sky that night gallops.

in your belt buckle
,
is not star
baffles me.

As a weapon, a sword
with a jewel in its case;
and the jewel, a world
in continuous training.

On one hand, a shield,
in the other, the sword

paid to kill a constellation.




Tracking your dogs,
both hemispheres,
chasing your prey,
ordeal of love.






Giant worshiped by the Greeks
known, named and revered

everything you can.
Do all you beat?
have a great enemy,
each dawning day.

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Night premature

storm smells starless no moon.


The sky light displays its roots
looking for land.

Darkness blinding. Silencio roto

.

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Storm Lightning Round "in UK?


B.

Journal Franklin.

June 1752, France. A day of many.

"After several experiments with Leyden bottles I have come to the conclusion that between the two plates are stored electricity. The plaque inside the flask is connected to a driver who goes to the outside a small-ball running in a metal. By bringing a metal bar such conprueba ball is jumping sparks. This occurs The sharper the better it is the metal bar.
I have observed and studied carefully the storm and I strongly believe that the rays produced in the clouds are of the same nature as the sparks: it is an electrical phenomenon.
To prove I built a kite with two thin strips of cedar and a silk handkerchief spread. I have completed with a tail, a ring and a string. When silk can withstand without tearing a storm of wind and water.
At the upper end of the cross I set a very sharp metal tip. At the lower end of the line, close to hand, I tied a silk ribbon, and the union of both a key.
I have everything ready. I am anxiously awaiting the next storm to trace my kite. "

Several days later.

"Finally

black clouds ... I stood in a doorway as the silk ribbon may not wet, I was very careful to not brush against the string and kept under my kite airborne.
As soon as the storm clouds approached the comet, the sharp point caught fire, energizing both the kite and the string. As the rain wet the kite and the string began to drive the electric fire freely, I found that it flowed in abundance of the key, as I expected.
Hallelujah! I got it! I was able to prove the identity of electric field of lightning! "



Later, Franklin, proposed to use this experiment to download the clouds by a metal bar, long, pointed at the top of the buildings, which led to electricity land. He had invented the lightning rod.

In 1782, in Philadelphia, had already installed 400 of these mills.

Years later, Franklin had to decide between devotion to his homeland and loyalty to George III. Participated in the drafting of the Declaration of Independence and it cost him his enmity with the king, who ordered that all lightning appeared on the rooftops of England, would have to be round.

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Learning to Think Things Geniuses

's five o'clock in the afternoon. We prepared to take regulatory tea in one of our short breaks. Meetings of the British Royal Society were entertaining but sometimes large. Suddenly there was silence and all turn our attention to the President, Sir Ernest Rutherford, who had begun to tell a story ...

"... Once I was elected as an impartial arbiter between a teacher and a student. The teacher wanted to suspend the student a physical exam and this ensured that his answer was correct. After accepting the responsibility of the office, I reported the events.

The review read: "Please demonstrate how you can determine the height of a building with the aid of a barometer."

(The atmospheric pressure varies with altitude. Using the barometer can measure the pressure difference between two levels and thus determine the height of a building, a mountain or height to flying an airplane).

The student's response was simple and correct: "If we go to the roof of the building and tied a string to the barometer, just pick it up it hits the ground and measure the length of the rope it will give us the height of the building. "

had a serious problem. The student had answered correctly and could not be stopped. On the other side was not showing it had the necessary knowledge of the subject, as approved.

We gave him a second chance to students to solve the problem, but this time warning him that he had to demonstrate their knowledge of physics, because that was what it was assessed. He conceded six minutes to respond.

The student began to think. Tick \u200b\u200btock, tick tock ... After five minutes I asked if he wanted to leave the room. I was surprised by his answer: "I have many solutions to the problem but do not know which to choose ..."

apologize for the interruption
asked him to continue. The student began to explain: "We can throw the barometer from the top of the building and measured with a stopwatch the time it takes to reach the ground. Applying the formula of kinematics that gives us the space, depending on the time and the acceleration of gravity, we can calculate the height from which to launch the barometer, which coincides with the height of the building. "

The student returned to answer correctly and this After demonstrating their knowledge of the subject. The teacher will put the highest and the conflict was resolved. But I was surprised both the student's answer about the many solutions, I approached it funny at the exit of the room to explain them to me. The student very kindly told me that we sit on a bench and began to speak:

"Well, other possible methods to resolve the issue might be to measure the shadow and the height of the barometer. Then measure the shadow of the building and apply a simple ratio between the shadow and the height of the barometer and the building. "

"Another method is quite simple but effective, it would take the barometer and check off the wall height, one after another, until you reach the top of the building. The number of brands, multiplied by the height of the barometer, will give us the height of the building. "

"A more sophisticated method would tie a string to the barometer and pick it from the roof. If we do we will have a pendulum swing. Measuring the acceleration of gravity to lower the barometer in his career as a pendulum, we can calculate the height of the building with the help of trigonometry. "

"Similarly, if in the previous case the barometer hung down to the ground and make it swing like a pendulum again, we obtain the height of the building by simply measuring the length of the pendulum swing."

"In short, there are many other ways to solve the problem, but perhaps the simplest is to take the barometer, hitting him the door of the janitor of the building in question and ask the building height in exchange for a nice barometer. " Displaying

reach the end of our fun conversation, I could not help but wonder if he did not know the answer that their teacher expected from the outset, using the barometer to measure the different pressures on the base and top of the building ... "Of course I know," replied , "but during my studies teachers have tried to teach me to think ..."

...

student who was that Sir Rutherford? Anxiously asked in unison. "Mr. Niels Bohr" answered bluntly.

Niels Bohr, Danish physicist, Nobel Prize in physics in 1922.
innovator

introduced the quantum theory by proposing the first atomic model, which is considered the atom consists of a nucleus of protons and neutrons (positively charged), around which electrons (negatively charged) spin at high speed.

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For three years, between 1687 and 1690, the great scientist, Isaac Newton was a member of British Parliament.

The illustrious genius never deigned to utter a word during this time.

One day he raised his hand for the word, the whole parliament was surprised and expectant, all eager to hear the opinion of Sir Newton.

The silence was deathly.

Then the Great Genius standing up said:
"I propose to close that window, because here a considerable cold."

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Look at the sky, that is exactly what I wanted to Galileo when he was playing with lenses in his small laboratory.
designed and built the first telescope and began to explore the sky: Moon, Mars, Venus, Jupiter and its moons ...
When Saturn went to his rudimentary telescope, he was surprised meet with an elongated shape rather than spherical.
Galileo described it as a head with ears.
Why we face to the moon? And ears to Saturn? Why the need to anthropomorphize everything? Good old Galileo
thought it might be two moons very close to the planet. In his mind there was no planets with rings.
Every scientist has a good deal of an artist, but even for an artist of limitless imagination would have been impossible to conceive something as amazing as the rings of Saturn.