Don't get king hit by a shrimp.

AV1611VET

SCIENCE CAN TAKE A HIKE
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Instead of the lights going out they literally turn on.


Without even looking at the video, I bet it's about that shrimp that hits harder than anything, and emits energy some 10 times hotter than the sun or something?
 
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AlexB23

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Instead of the lights going out they literally turn on.

I don't even have to watch the video, cos I saw a rerun of a 2006 documentary about this about 10-12 years ago. This is sonoluminescence, a phenomenon that I heard about a while ago, which is where a bubble of air in water can be compressed using sound waves, so much so that the air turns into a plasma and glows. Diesel engines do not have sonoluminescence, but the compression inside the diesel engine generates enough heat to ignite the fuel. Sonoluminescence takes this one step further, where the pressures are high enough to turn air into plasma, with no fuel required.

The documentary (6 min snippet):

Sonoluminescence and heat generated from adiabatic compression inside a diesel engine are both phenomena related to the conversion of mechanical energy into thermal or light energy. Here's how they are similar:
  1. Energy Conversion: In both cases, the initial input is mechanical energy. In a diesel engine, the fuel is compressed adiabatically (without heat exchange with the surroundings), and the resulting increase in temperature causes the fuel to ignite and release thermal energy. In sonoluminescence, ultrasonic waves are applied to a liquid, causing cavitation bubbles to form and collapse, releasing light energy.
  2. Pressure and Temperature: The process of adiabatic compression in a diesel engine increases the pressure and temperature within the combustion chamber. Similarly, during sonoluminescence, the collapsing cavitation bubbles generate high pressures and temperatures inside the liquid, leading to the emission of light.
  3. Energy Release: In both cases, the energy is released in a relatively short time frame. In a diesel engine, the fuel ignites and releases thermal energy for combustion, which generates power to move the vehicle. In sonoluminescence, the cavitation bubble collapses and emits light in a very brief moment.
 
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sjastro

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I don't even have to watch the video, cos I saw a rerun of a 2006 documentary about this about 10-12 years ago. This is sonoluminescence, a phenomenon that I heard about a while ago, which is where a bubble of air in water can be compressed using sound waves, so much so that the air turns into a plasma and glows. Diesel engines do not have sonoluminescence, but the compression inside the diesel engine generates enough heat to ignite the fuel. Sonoluminescence takes this one step further, where the pressures are high enough to turn air into plasma, with no fuel required.

The documentary:

Sonoluminescence and heat generated from adiabatic compression inside a diesel engine are both phenomena related to the conversion of mechanical energy into thermal or light energy. Here's how they are similar:
  1. Energy Conversion: In both cases, the initial input is mechanical energy. In a diesel engine, the fuel is compressed adiabatically (without heat exchange with the surroundings), and the resulting increase in temperature causes the fuel to ignite and release thermal energy. In sonoluminescence, ultrasonic waves are applied to a liquid, causing cavitation bubbles to form and collapse, releasing light energy.
  2. Pressure and Temperature: The process of adiabatic compression in a diesel engine increases the pressure and temperature within the combustion chamber. Similarly, during sonoluminescence, the collapsing cavitation bubbles generate high pressures and temperatures inside the liquid, leading to the emission of light.
  3. Energy Release: In both cases, the energy is released in a relatively short time frame. In a diesel engine, the fuel ignites and releases thermal energy for combustion, which generates power to move the vehicle. In sonoluminescence, the cavitation bubble collapses and emits light in a very brief moment.
I'm all too familiar with the effects of cavitation in the automotive industry particularly for cooling systems.
A very simple test for long life coolant is an anti foaming test, if the coolant foamed after vigorous shaking it was a strong indicator that cavitation would eventually destroy coolant pumps.
When I had to investigate engine failures this was the first point of investigation as cavitation produced a fingerprint erosion pattern.
 
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AlexB23

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I'm all too familiar with the effects of cavitation in the automotive industry particularly for cooling systems.
A very simple test for long life coolant is an anti foaming test, if the coolant foamed after vigorous shaking it was a strong indicator that cavitation would eventually destroy coolant pumps.
When I had to investigate engine failures this was the first point of investigation as cavitation produced a fingerprint erosion pattern.
Whew, an engine failure can cost a lot of money, so hopefully there is no cavitation in any of the liquids inside of a car. So, you worked as a mechanic or engineer?
 
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sjastro

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Whew, an engine failure can cost a lot of money, so hopefully there is no cavitation in any of the liquids inside of a car. So, you worked as a mechanic or engineer?
I worked as a scientist.
The company operated on an escalation system, if a problem couldn't be resolved by suppliers for components parts, or inhouse parts such as engines, the problem was escalated to the next level where it became the responsibility of scientists and specialists.
This also included safety and legal related issues.
 
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AlexB23

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I worked as a scientist.
The company operated on an escalation system, if a problem couldn't be resolved by suppliers for components parts, or inhouse parts such as engines, the problem was escalated to the next level where it became the responsibility of scientists and specialists.
This also included safety and legal related issues.
Wow, that sounds like a lot of difficult work, trying to deal with engines. What type of scientist were you?
 
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sjastro

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Wow, that sounds like a lot of difficult work, trying to deal with engines. What type of scientist were you?
My role in the company evolved into a sort of Mr. Fixit with the emphasis on science rather than engineering.
I gave an example of the use of science in solving a corrosion problem rather than engineering.
 
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AlexB23

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My role in the company evolved into a sort of Mr. Fixit with the emphasis on science rather than engineering.
I gave an example of the use of science in solving a corrosion problem rather than engineering.
It seems like your role was a hybrid between a scientist and an engineer.
 
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