question: When we are inside bus, why does it vibrate more when it stops compared to when it is moving?
comment: The bus’s engine has slight imbalances that cause it to vibrate at a frequency proportional to its RPM. As the engine speeds up, as it does when moving, the vibrations still occur, but they happen fast enough that imbalances pulling in one direction are quickly counteracted when the part rotates and is pulling in the opposite direction. When the bus moves, the vibrations are smaller, but at higher frequency than when it stops.
passages: Memristance is displayed only when both the doped layer and depleted layer contribute to resistance. When enough charge has passed through the memristor that the ions can no longer move, the device enters hysteresis. It ceases to integrate "q"=∫"I" d"t", but rather keeps "q" at an upper bound and "M" fixed, thus acting as a constant resistor until current is reversed.
   Irrespective of signal state the signal lines are always in low impedance state with respect to one another by virtue of the terminating resistors at the end of the bus.
   BULLET::::- Less noise while traveling, because the groans squeaks and rattles normally associated with bodywork movement due to stresses and strains are not heard so much, and road noise from tires is more "distant," all due to the bodywork being isolated from the chassis by rubber pads around the attachment bolts, or by suspending the body on the chassis.
   BULLET::::- Mr. Junkett: Junkitt is an African-American Vehicle Maintenance Inspector in the episode "Revving Up." As a minor antagonist, he accidentally leaves a peanut butter sandwich on the bus's carburetor (blocking air inflow), which then drips peanut butter into the bus's fuel line and cylinder's spark plug, which makes the bus break down. Voiced by Sherman Hemsley.
  
  BULLET::::- Mr. McClean: Voiced by Malcolm McDowell. The school janitor, who struggles to control the new automatic welcome system in "Gets Programmed".
   Section::::Vibration analysis.:Free vibration without damping.:What causes the system to vibrate: from conservation of energy point of view.
   Section::::Description.:Condition.
   Often, the mode of operation of the device is to re-transmit unacknowledged frames over and over. This may lead to eventually entering the "error passive" state.
  
  Section::::Interframe spacing.
   The moving system of the loudspeaker (including the cone, cone suspension, spider and the voice coil) has a certain mass and compliance. This is most commonly likened to a simple mass suspended by a spring that has a certain resonant frequency at which the system will vibrate most freely.
   This does not preclude the mechanism from being used in e.g. movie projectors to stepwise transport the film with high reliability (very long life) and just slight noise, since the load is very low - the system drives just that part of the film which is within the corridor of projection, so a very low mass (a few centimeters thin plastic film), with low friction, at a moderate speed (2.4 m/s, 8.6 km/h) is affected.
   During a recessive state the signal lines and resistor(s) remain in a high impedances state with respect to both rails. Voltages on both CAN+ and CAN− tend (weakly) towards a voltage midway between the rails. A recessive state is only present on the bus when none of the transmitters on the bus is asserting a dominant state.
  
  During a dominant state the signal lines and resistor(s) move to a low impedance state with respect to the rails so that current flows through the resistor. CAN+ voltage tends to +5 V and CAN− tends to 0 V.
   The AC Transit Bus fight was an altercation between two men aboard a transit bus in Oakland, California, in the United States, which took place on February 15, 2010, at approximately 12:00p.m. PST. The fight, between 67-year-old Thomas A. Bruso (who became known as "Epic Beard Man" or "Vietnam Tom") and a 50-year-old man named Michael Lovette, was recorded on video and later uploaded to the video hosting website YouTube, where it became a viral video. As of March 2013, the video has received over six million views on various blogs and websites. It ranked among the top five most viewed videos on YouTube in its first week, but was not included in the official list. The event raised concerns following a number of previous incidents involving violence on the public transport system in Oakland.
   Section::::Thomas Bruso.
  
  Bruso was born in Michigan. In addition to the "AC Transit Fight", another video involving Thomas Bruso was uploaded to YouTube. He was stunned with a taser twice at the Oakland Coliseum by police on August 3, 2009 for sitting in empty seats at a ball game, questioning what he did wrong, then for failing to immediately comply with police officers who demanded he move from the empty section. He was charged with resisting arrest and taken to a psychiatric hospital for evaluation.
  
  Section::::Thomas Bruso.:Interviews of Bruso.
   Flicker noise is found in carbon-composition resistors and in thick-film resistors, where it is referred to as "excess noise", since it increases the overall noise level above the thermal noise level, which is present in all resistors. In contrast, wire-wound resistors have the least amount of flicker noise. Since flicker noise is related to the level of DC, if the current is kept low, thermal noise will be the predominant effect in the resistor, and the type of resistor used may not affect noise levels, depending on the frequency window.
  
  Section::::Measurement.
   BULLET::::- whatever the damping is, the vibration is 90 degrees out of phase with the forcing frequency when the frequency ratio "r" = 1, which is very helpful when it comes to determining the natural frequency of the system.
  
  BULLET::::- whatever the damping is, when "r" ≫ 1, the vibration is 180 degrees out of phase with the forcing frequency
  
  BULLET::::- whatever the damping is, when "r" ≪ 1, the vibration is in phase with the forcing frequency
  
  Section::::Vibration analysis.:Forced vibration with damping.:Resonance causes.
   Normally followed by "The wipers on the bus go swish swish swish" (with action), "the horn on the bus goes beep beep beep" and "the people on the bus go up and down" (with action). Some versions substitute "bounce up and down" for "go up and down", and some modern commercial recordings of the song in children's toys simplify the tune by copying notes 7 through 9 onto notes 13 through 15.
  
  Section::::Mad Donna's cover version.
   BULLET::::3. Slack bus – to balance the active and reactive power in the system. It is also known as the "Reference Bus" or the "Swing Bus". The slack bus will serve as an angular reference for all other buses in the system, which is set to 0°. The voltage magnitude is also assumed to be 1 p.u. at the slack bus.
   In 2008, descriptive panels were added across the front exterior of the building. In images and text, the fifteen panels illustrated the events of May 1961, but the interior remained inaccessible.
  
  In 2009, the services of Cohen Carnaggio Reynolds, architects out of Birmingham, AL, were retained by the Alabama Historical Commission to rehabilitate and refurbish the interior of the bus station into The Freedom Rides Museum.
  
  Section::::Freedom Rides Museum.
   In a set of driving pendulums with different length of strings hanging objects, the one pendulum with the same length of string as the driver gets the biggest amplitude of swinging.
  
  Section::::Different Types of Complex Harmonic Motion.:Resonance.:Real-life Application.
  
  BULLET::::- Parts of a car may vibrate if you drive over a bumpy road at a speed where the vibrations transmitted to the body are at the resonant frequency of that part. (Actually, cars are designed not to do this by choosing parts with natural frequencies that are not likely to be produced by driving).
   Across the bay in Oakland, protesters were more pointed in their blockade, with one protester breaking the window of a bus while an unrelated second protester slashed the tire of another bus. Other protesters detaining a bus in Oakland unfurled a banner containing expletives. In one incident on 2 April 2014, a protester climbed to the roof of a Yahoo bus close by Bay Area Rapid Transit's MacArthur station in Oakland, and vomited on the windshield. According to an organizer from San Francisco, the protests in Oakland were not affiliated with the San Francisco groups, with "the only real connection is that most of our communities are being heavily displaced and people are very angry."
   The term "rear wobble" is used to describe a mode of oscillation in which lean angle (roll) and heading angle (yaw) are almost in phase and both 180° out of phase with steer angle. The rate of this oscillation is moderate with a maximum of about 6.5 Hz. Rear wobble is heavily damped and falls off quickly as bike speed increases.
  
  Section::::Lateral dynamics.:Lateral motion theory.:Modes.:Design criteria.
   inertia of the moving load. A concentrated mass "m" accompanied by a point
  
  force "P":
  
  The last term, because of complexity of computations, is often neglected by engineers. The load influence is reduced to the massless load term. Sometimes the oscillator is placed in the contact point. Such approaches are acceptable only in low range of the travelling load velocity. In higher ranges both the amplitude and the frequency of vibrations differ significantly in the case of both types of a load.
   BULLET::::- Michael Sheard as the General Manager of the bus depot. He is always arguing with Blakey about something that the latter has done. He was also the judge at the gardening competition in the episode "Gardening Time".
   Because the bus lines are electrically open collector it works like a long OR gate between all device line drivers. The logical value for ground is true and vice versa. Any device may set a line "true". A line only becomes "false" if all devices signal false.
   On 9 June 2018, a Megasightseeing bus strayed in to a demonstration in Trafalgar Square in support of far right leader Tommy Robinson. The bus was overtaken by protesters and a significant amount of damage occurred to the vehicle, resulting in it needing to be towed away.
  
  Section::::Tickets and fares.
   The frequency of the noise depends on the nature of electromagnetic forces (quadratic or linear function of electrical field or magnetic field) and on the frequency content of the electromagnetic field (in particular if a DC component is present or not).
  
  Section::::Electromagnetic noise and vibrations in electric machines.
  