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UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
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MICHEZO
TEKNOLOJIA
VAZI
The Gyroscope: A Wheel That Refuses to Fall
A spinning top stands up only while it spins. Mount a heavy spinning wheel in rings so its axle is free to point anywhere, and it does something stranger: pushed down at one end, it swings sideways; left alone, its axle keeps the same direction in space while the world turns under it.
Johann Bohnenberger built such an instrument in 1812. Léon Foucault built his in 1852 to show the Earth's rotation without a pendulum, and named it the gyroscope — 'to view the turning'. It became the heart of compasses, autopilots and inertial navigation.
This rung works out precession from the spin and the torque, and measures it on a toy gyroscope.
Mwanzo
About 2 hours
Maagizo
1
1
Angular momentum and precession
Angular momentum and precession
Inapakia daftari la Jupyter…
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2
Spin that stands up
Spin that stands up
A top is a gyroscope without its rings. The embedded blueprint makes one and shows why it stands only while it spins.
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3
Measure precession against spin
Measure precession against spin
Spin up a precision toy gyroscope with its pull string and set one end of its axle on the pedestal so it hangs horizontally. Time one full precession circuit with a stopwatch, and at the same moment read the rotor's spin with an optical tachometer (a strip of reflective tape on the rotor).
Repeat every few seconds as it slows. Plot precession rate against spin: the product of the two stays nearly constant, as $\Omega = mgr/(I\omega)$ says. Weigh the gyroscope, measure $r$ from pivot to rotor centre, and estimate $I$ from the rotor's mass and radius to check the constant.
Vifaa kwa hatua hii:
Jairoskopu - chuma cha usahihi, cha kufundishia1 kipandeZana zinazohitajika:
Saa ya kupima muda
Kipimamzunguko cha Dijitali
Mizani ya dijitali ya jikoni
Kipima-unene cha dijitali cha inchi 64
4
A gyroscope that will not behave
A gyroscope that will not behave
Toy gyroscope problems.
Flow
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5
History and honest limits
History and honest limits
**Johann Bohnenberger** described a gyroscope-like instrument in 1812. **Léon Foucault** built his in 1852, after his pendulum, to show the Earth's rotation, and coined the name. Gyrocompasses, gyro autopilots and inertial platforms followed in the twentieth century.
**Honest limits.** The precession formula assumes the spin is much faster than the precession and ignores friction and nutation. A toy gyroscope's bearings are too rough to show the Earth's rotation; Foucault's needed a very fast, very true rotor.
Vifaa
1- Jairoskopu - chuma cha usahihi, cha kufundishiaKamisheni 10%1 kipandeKishikilia Nafasi
Zana Zinazohitajika
4- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
Spinning Top
na Spartan
Michezo
47
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0
0
0
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Building a Foucault Pendulum — Proving Earth Rotates with a Swinging Weight
na Astro
Nafasi
98
0
0
0
0
0
Making a Stone Spindle Whorl — The Flywheel That Made Thread Possible
na Tex
Utengenezaji mawe
66
0
0
0
1
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The Crank and the Flywheel: Smoothing One Bang in Two Turns
na Martin
Mitambo
3
0
0
0
0
0
CC0 Umma Wote
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