THE FOUCAULT PENDULUM
OF CAGLIARI UNIVERSITY
PHYSICS MUSEUM OF SARDINIA - PHYSICS DEPT.
Live
image stream. Some characteristics:
IT
IS A PENDULUM PERPETUALLLY ENTERTAINED IN OSCILLATION
LATITUDE
OF THE SITE: 39°16’
ROTATION
OF THE OSCILLATION PLANE: 9,5°/HOUR
(ONE
360° ROTATION OF THE PLANE OF OSCILLATION
EVERY
37 HOURS 53 MIN.,
HALF
DEGREE LESS THAN ONE OF THE REFERENCE TALLYS
AT
THE PERIPHERY OF THE BOTTOM PLANE)
THREAD
LENGTH: 10,4 m
PERIOD:
6,4 s
WEIGHT
OF THE BRONZE SPHERE: 26 Kg
CORIOLIS
FORCE/GRAVITAZIONAL FORCE: 10-6
Constructed
by Prof. Guido Pegna, pegna@unica.it
Camera
control and streaming software:
Dott.
A. Silvestri e Prof. A. Bosin
to
whom we wish to express our warm thanks
The hanging,
driving and damping systems
Synchronizing
pulses are transmitted by a coded radio link to the driving system.
The
power to the electronics is supplied by a photovoltaic panel
and
a storage lead accumulator.
The hanging
point is the most delicate
The Charron
ring
The reed
relais for the driving pulse
The bronze
sphere, the bottom plane and under this
the
driving electromagnet
The Coriolis
force effect on each semielongation