Amantes del péndulo.

A diferencia tuya, no tenemos ninguna DUDA.

HISTORIA DEL PENDULO:

One of the earliest known uses of a pendulum was in the first century seismometer device of Han Dynasty China scientist Zhang Heng. Its function was to sway and activate one of a series of levers after being disturbed by the tremor of an earthquake far away. Released by the lever, a small ball would fall out of the urn-shaped device into one of eight metal toad's mouths below, at the eight points of the compass, signifying the direction the earthquake was located.

Many sources claim that tenth century Egyptian astronomer Ibn Yunis used a pendulum for time measurement, but other sources claim this was a myth started in 1684 by British historian Edward Bernard.

During the Renaissance, large pendulums were used as sources of power for manual reciprocating machines such as saws, bellows, and pumps. Leonardo da Vinci made many drawings of the motion of pendulums, though without realizing its value for timekeeping.

Italian scientist Galileo Galilei was the first to study the properties of pendulums, beginning around 1602. His biographer and student, Vincenzo Viviani, claimed his interest had been sparked around 1582 by the swinging motion of a chandelier in the Pisa cathedral. Galileo discovered the crucial property that makes pendulums useful as timekeepers, called isochronism; the period of the pendulum is approximately independent of the amplitude or width of the swing. He also found that the period is independent of the mass of the bob, and proportional to the square root of the length of the pendulum. He first employed freeswinging pendulums in simple timing applications, such as a metronome for musicians. A physician friend used it as a timer to take patients' pulse, the pulsilogium. In 1641 Galileo also conceived a design for a pendulum clock. The pendulum was the first harmonic oscillator used by man.

Ni empedo me leo la historia.Cito lo siguiente:

"che la de consultas con el pendulo q encontro metal es genial"

Si, javi hurta mis descubrimientos.

Pd: Feliz Pendulo Herno!

Q fea historia

es fea pero es la cruda realidad :(

Si sis chicos, para esta navidad llegaron las figuras de accion del pendulo, totalmente articuladas, entre ellas podemos encontrar a Isma, mat, Lemu, basara y los demas..
A solo 199$!!!!

EDIT: Con la compra de 3 muñecos un vale de 50% en telos cortesia de mat.

Se!

El péndulo de Newton es un juguete de escritorio sencillo pero fascinante que demuestra, de manera muy gráfica, la ley de la conservación de la energía.

Comprelo en la tienda mas cercana.Esta navidad diviertase, compre!

ryoma come traba!!!!

El pendulo de newton... eso suma a la teoria que dicen que cada siglo sobresale un pendulo superior..

"Si sis chicos, para esta navidad llegaron las figuras de accion del pendulo, totalmente articuladas, entre ellas podemos encontrar a Isma, mat, Lemu, basara y los demas..
A solo 199$!!!!"

me cage de risa con esto xd