[Solar-general] [OT] Dispositivo para crear energia

Mar Mar 28 15:57:31 CEST 2006

On 3/28/06, Pablo Manuel Rizzo <info at pablorizzo.com> wrote:
> Es probable que hayan puesto al rojo el alambre de una lamparita de 0.03
> watt y en base a eso estén tratando de conseguir un lindo subsidio del
> gobierno para desarrollar el dispositivo final.

Voy a creer en eso cuando el inventor deje de pagarle a ESEBA y
alumbre su casa con la energia producida por sus imanes :)
En ASALUP publicamos esto como entrada:
http://www.asalup.org/content/view/154/1/
Luego vamos a poner una nota completa, en muy poco tiempo.

> Pero bueno... a Colón tampoco le creían al principio, y después mirá la
> matanza que hicieron...

Quienes no creian eran los ignorantes, los cientificos de la epoca
sabian que la tierra era esferica desde hace muchos años. Mira esto de
la Wikipedia:

It is sometimes claimed that the reason Columbus had difficulty
obtaining support for his plan was that Europeans believed that Earth
was flat, a claim made in many American public school textbooks up
until the late 90s. This claim can be traced to Washington Irving's
1828 novel, The Life and Voyages of Christopher Columbus. Irving's
claim has no historical basis. In fact, what was at issue was not the
shape, but the circumference of the earth.

The fact that the Earth is spherical was evident to most people of
Columbus' time, especially to sailors, explorers and navigators.
Indeed, Eratosthenes (276-194 BCE) had already, in ancient Alexandrian
times, accurately calculated the Earth's circumference. Most scholars
accepted Ptolemy's claim that the terrestrial landmass (for Europeans
of the time, comprising Eurasia and Africa) occupied 180 degrees of
the terrestrial sphere, leaving 180 degrees of water.

Columbus, however, accepted the calculations of Pierre d'Ailly, that
the landmass occupied 225°, leaving only 135° of water. Moreover,
Columbus believed that 1° represented a shorter distance on the
earth's surface than was commonly held. Finally, he read maps as if
the distances were calculated in Roman miles (1,524 meters, or 5,000
feet), rather than in nautical miles (1,853.99 meters, or 6,082.66
feet, at the equator). He therefore calculated the circumference of
the Earth as 30,600 km (19,000 modern statute miles) at most, and the
distance from the Canary Islands to Japan at 2,400 nautical miles
(some 4,444 km).

The problem facing Columbus was that experts did not agree with his
estimate of the distance to the Indies. The true circumference of the
Earth is some 40,000 km (24,900 statute miles of 5,280 feet each), and
the distance from the Canary Islands to Japan is some 10,600 nautical
miles (19,600 km). No ship in the fifteenth century could carry enough
food or sail fast enough from the Canary Islands to Japan. Most
European sailors and navigators concluded, correctly, that sailors
undertaking a westward voyage from Europe to Asia would die of
starvation or thirst long before reaching their destination.

Those experts were right, but Spain, only recently unified through the
marriage of Ferdinand and Isabella, and just Christianized through the
expulsion of the Muslims and Jews, was desperate for a competitive
edge over other European countries, in trade with the East Indies.
Columbus promised them that edge.

Columbus was wrong about the circumference of the Earth and the
distance from the Canary Islands to Japan. But most Europeans were
wrong in thinking that the aquatic expanse between Europe and Asia was
uninterrupted. Although Columbus died believing he had opened up a
direct nautical route to Asia, in fact, he established a nautical
route between Europe and the Americas. It was this route to the
Americas, rather than to Japan, that gave Spain the competitive edge
it sought in developing a mercantile empire.

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