[sgroclkc (OP)]

There are many reasons for low-frequency noise. The low-frequency noise of seasickness is caused by storm

The storm does not affect workers on oil rigs or lighthouses, because they stay still.
There is a reason why it is called "motion sickness".

Face it, your idea is wrong.

The reason why workers on oil rigs or lighthouses won't get carsick must be that the low-frequency noise is relatively small.

That suggestion is silly.
It's going to be just the same as on a ship.
Low frequency sound travels very well through air.

You didn't consider the sound intensity decreases inversely proportional to the squared distance, that is, with 1/r² from the measuring point to the sound source, so that doubling of the distance deceases the sound intensity to a quarter of its initial value.

[Bored chemist]

You didn't consider the sound intensity decreases inversely proportional to the squared distance, that is, with 1/r² from the measuring point to the sound source, so that doubling of the distance deceases the sound intensity to a quarter of its initial value.

You are correct in saying that I didn't consider it.
Because it's wrong.
The inverse square law applies if you are considering a point source of sound (or light) but if you are considering an extended source such as the sea the fall off with distance is much slower. For a very large flat source, such as the sea, there's actually an inverse zeroth power law. The intensity is independent of distance. (That's why the absorption by air is important and that's why I pointed out that low frequency sounds carry well.)

Did you not know about that?

Also, someone sitting on the harbour wall watching the waves is much closer to them than someone on the top deck of a cruise ship, but only the ship-board one will get sick.

This is because you are wrong.

[sgroclkc (OP)]

You didn't consider the sound intensity decreases inversely proportional to the squared distance, that is, with 1/r² from the measuring point to the sound source, so that doubling of the distance deceases the sound intensity to a quarter of its initial value.

You are correct in saying that I didn't consider it.
Because it's wrong.
The inverse square law applies if you are considering a point source of sound (or light) but if you are considering an extended source such as the sea the fall off with distance is much slower. For a very large flat source, such as the sea, there's actually an inverse zeroth power law. The intensity is independent of distance. (That's why the absorption by air is important and that's why I pointed out that low frequency sounds carry well.)

Did you not know about that?

Also, someone sitting on the harbour wall watching the waves is much closer to them than someone on the top deck of a cruise ship, but only the ship-board one will get sick.

This is because you are wrong.

When you are 0.1M away from the aircraft engine, you will get airsick when you hear the noise of the aircraft engine. When you are 0.2m away from the aircraft engine, you will not get airsick due to the reduction of sound intensity.
Of course, the data of 0.1M and 0.2m are just speculation. No scientists have ever done experimental verification on the specific data.The purpose is to explain that the distance between carsickness, airsickness and sound source is very large.

[sgroclkc (OP)]

In addition, the sound intensity of low-frequency noise will become very large due to good sealing. When physicists do experiments with low-frequency noise, in order to increase the sound intensity, they must let the participants wear oxygen masks and enter a place similar to a space capsule to do experiments.Only in this way can the participants get carsick after hearing low-frequency noise.

[sgroclkc (OP)]

Because the low-frequency noise generated by the car is relatively small, only the car with good sealing will make the low-frequency noise very large and make people carsick.Since trucks, motorcycles and tractors do not have cars with good sealing, the low-frequency noise is very small and they will not get carsick.

[sgroclkc (OP)]

You didn't consider the sound intensity decreases inversely proportional to the squared distance, that is, with 1/r² from the measuring point to the sound source, so that doubling of the distance deceases the sound intensity to a quarter of its initial value.

You are correct in saying that I didn't consider it.
Because it's wrong.
The inverse square law applies if you are considering a point source of sound (or light) but if you are considering an extended source such as the sea the fall off with distance is much slower. For a very large flat source, such as the sea, there's actually an inverse zeroth power law. The intensity is independent of distance. (That's why the absorption by air is important and that's why I pointed out that low frequency sounds carry well.)

Did you not know about that?

Also, someone sitting on the harbour wall watching the waves is much closer to them than someone on the top deck of a cruise ship, but only the ship-board one will get sick.

This is because you are wrong.

Because you, like those experts who study motion sickness, don't understand the physical properties of low-frequency noise, you come to the wrong conclusion.For example, in 1997, Professor Yu Lishen, China's most authoritative expert on Sports diseases at the Beijing Air Force Institute of Aeronautical medicine, once asked me a question: why do you hear a very loud noise when flying over the airport, but you won't get airsick?

[sgroclkc (OP)]

Ma Dayou, a famous Chinese physical acoustician (refer to Wikipedia), has long pointed out that carsickness and airsickness are caused by infrasound noise. His experiments on low-frequency noise are also done in places similar to space capsules.More than ten years ago, I hoped academician Ma Dayou would expose the scientific scam of the theory of motion sickness. He replied to me that he was over 90 years old. Moreover, he was not a medical expert and had no energy to pay attention to medical problems.

[Bored chemist]

When you are 0.1M away from the aircraft engine, you will get airsick when you hear the noise of the aircraft engine. When you are 0.2m away from the aircraft engine, you will not get airsick due to the reduction of sound intensity.

Nobody sits that close to the engine.
Stop wasting everyone's time.

Ma Dayou

was not a medical expert and had no energy to pay attention to medical problems.

don't understand the physical properties of low-frequency noise,

You are the one who thought it always followed the inverse square law; you are the one who does not understand.

[sgroclkc (OP)]

Motion sickness theory,does not explain why presumably weak stimuli such as slow ship movements and a slow-moving car often result in motion sickness while more powerful and active movements such as walking, jumping, and swimming do not usually cause motion sickness.People who gets carsickness in a car usually can travel in trains ,trucks,tractors,motorcycles without any discomfort at all.
For example, sometimes when I take a bus to the Nanpu Bridge in Shanghai, I encounter a traffic jam, and the speed of the car is very slow. However, because the car is driving upward, the driver must always refuel the door, and the noise generated by the engine is relatively large, so I am easy to get carsick.

[Bored chemist]

Motion sickness theory,does not explain why presumably weak stimuli such as slow ship movements and a slow-moving car often result in motion sickness while more powerful and active movements such as walking, jumping, and swimming do not usually cause motion sickness.

Yes it does.
Why lie about it?

On the other hand, a pedestrian next to the traffic is exposed to almost the same sound as the occupants of the slow car or whatever and they do not get motion sickness..
So your idea that it is due to sound does not work, does it?

[sgroclkc (OP)]

Motion sickness theory,does not explain why presumably weak stimuli such as slow ship movements and a slow-moving car often result in motion sickness while more powerful and active movements such as walking, jumping, and swimming do not usually cause motion sickness.

Yes it does.
Why lie about it?

On the other hand, a pedestrian next to the traffic is exposed to almost the same sound as the occupants of the slow car or whatever and they do not get motion sickness..
So your idea that it is due to sound does not work, does it?

Because the low-frequency noise generated by the car is relatively small, strong low-frequency noise can be generated only in a completely closed place, and it makes people carsick.

[Bored chemist]

strong low-frequency noise can be generated only in a completely closed place,

That's not true.

Why lie about it?

[sgroclkc (OP)]

strong low-frequency noise can be generated only in a completely closed place,

That's not true.

Why lie about it?

Sorry, I didn't express my opinion correctly.I mean, the low-frequency noise generated by the car is too small to make people carsick directly like the noise generated by the aircraft engine. Cars must amplify the intensity of low-frequency noise in a completely closed place to make people carsick.

[sgroclkc (OP)]

Because the experiments of motion sickness experts have always been unable to replicate the same symptoms as carsickness and seasickness., motion sickness experts still believe that they do not know the causes of carsickness and seasickness., and the explanation of motion sickness is still only a hypothesis.Academician Ma Dayou, a Chinese scientist, expressed his opinion that carsickness is caused by infrasound noise in 1994. After I saw it in 1997, I introduced academician Ma Dayou's opinion to Professor Yu Lisheng, a Chinese motion sickness expert. He replied to me that this opinion is very valuable. The problem of airsickness is an urgent problem to be solved by the Chinese air force.,hope to discuss with me face to face.

[Bored chemist]

Because the experiments of motion sickness experts have always been unable to replicate the same symptoms as carsickness and seasickness.

That's not true.
Quote from: Bored chemist on Today at 08:35:08
Why lie about it?

[Bored chemist]

Cars must amplify the intensity of low-frequency noise in a completely closed place to make people carsick.

Show your data.

[sgroclkc (OP)]

Cars must amplify the intensity of low-frequency noise in a completely closed place to make people carsick.

Show your data.

Found in Google:

Open the windows
Fresh air often can stave off carsickness if someone starts to feel ill. Even just opening a window or sunroof a small bit can get enough air in to settle queasiness. You may also want to take any air fresheners out of the car before your trip. Scents and odors can cause sensitivity that leads to feeling ill as well.
His method is correct, but his explanation is wrong. The reason why carsickness can be avoided after opening the window is that the low-frequency noise is reduced.

[sgroclkc (OP)]

I designed an experiment that everyone can do to prove that carsickness is caused by low-frequency noise and has nothing to do with motion.It is to select a car with large low-frequency noise and easy to make people feel carsick, completely close the window, and the people participating in the experiment must wear an oxygen mask (to avoid suffocation and death when the air is not circulating). When the car is in neutral and the car is stationary, step on the car accelerator to the bottom to maximize the low-frequency noise in the car, It is bound to make people with good hearing carsick.

[Bored chemist]

His method is correct, but his explanation is wrong.

No
People who suffer from motion sickness (who are the actual experts) will tell you that strong odours make symptoms worse.

I designed an experiment that everyone can do to prove that carsickness is caused by low-frequency noise and has nothing to do with motion.It is to select a car with large low-frequency noise and easy to make people feel carsick, completely close the window, and the people participating in the experiment must wear an oxygen mask (to avoid suffocation and death when the air is not circulating). When the car is in neutral and the car is stationary, step on the car accelerator to the bottom to maximize the low-frequency noise in the car, It is bound to make people with good hearing carsick.

A similar experiment is done countless times every day.
The driver is exposed to the same sound as the passengers, but only the passengers get sick.

[sgroclkc (OP)]

Did you just call those deaf people liars?
(It's hardly credible that they are mistaken about motion sickness)
Or do you accept that they get travel-sick and that you are wrong.

You do realise that just one person is enough to kill your theory , don't you?

But, of course, we already knew that.
Nausea and nautical have the same linguistic roots.
The phenomenon of seasickness has been documented for centuries.
And so your claim that it's anything to do with engines is nonsense.


The real irony here is that all your silly claims ae anecdotal; they are just a story that you (and only you) tell.