[Bored chemist]

I bet no one would dare place five 15-kg concrete blocks on an area of 0.2x0.2 m^2 even for a millisecond. This isn't about physics-it's about risking one's life.

If I had them, I would. Would something else work as an acceptable substitute for you? Bricks? Metal? Barbel weights? I'll investigate what I have available.

Yes, any concrete or metal can serve as a suitable substitute. I was able to lie on my abdomen on a concrete block, supporting my full body weight of 63 kg on an area of just 0.04 m^2, for one minute without any pain-and I can comfortably maintain this position for even longer periods.

You just proved that placing the same weight on your abdomen is safe.

[Yahya A.Sharif (OP)]

I bet no one would dare place five 15-kg concrete blocks on an area of 0.2x0.2 m^2 even for a millisecond. This isn't about physics-it's about risking one's life.

If I had them, I would. Would something else work as an acceptable substitute for you? Bricks? Metal? Barbel weights? I'll investigate what I have available.

Yes, any concrete or metal can serve as a suitable substitute. I was able to lie on my abdomen on a concrete block, supporting my full body weight of 63 kg on an area of just 0.04 m^2, for one minute without any pain-and I can comfortably maintain this position for even longer periods.

You just proved that placing the same weight on your abdomen is safe.

No, I did not. Applying an equivalent load-such as four 15-kg concrete blocks-directly to the abdomen over an area of 0.04 m^2 poses significant safety risks.

[Bored chemist]

You keep making that claim. But the evidence says otherwise

[Yahya A.Sharif (OP)]

You keep making that claim. But the evidence says otherwise

What evidence? Can you, Kryptid, or any typical person place four 15-kg concrete blocks on an area of 0.04 m^2 on the abdomen without experiencing pain or injury?

[paul cotter]

No one is saying it would be pleasant or completely risk free but if done carefully there should be no problem with a short experiment.

[Yahya A.Sharif (OP)]

No one is saying it would be pleasant or completely risk free but if done carefully there should be no problem with a short experiment.

I can assure you that performing the reverse-lying on a concrete block and applying the same force to the same area for longer periods- is completely pain-free and entirely risk-free. Now, can you see the difference?

[paul cotter]

How high off the ground is your 0.2x0.2 concrete block ? Unless it is well off the ground there may be auxiliary load bearing. If the blocks are ~#1 metre off ground then there is no significant difference to the same weight on the abdomen.

[Yahya A.Sharif (OP)]

How high off the ground is your 0.2x0.2 concrete block ? Unless it is well off the ground there may be auxiliary load bearing. If the blocks are ~#1 metre off ground then there is no significant difference to the same weight on the abdomen.

The setup was as follows: A 15 kg concrete block was placed on a table 45 cm above the ground. My body weight was 63.4 kg. I positioned myself prone on the block, with my abdomen supported over an area of 0.04 m^2, ensuring that my body remained as straight as possible. The remainder of my body extended freely in the air, with both arms and legs fully stretched. I was able to maintain this position for one minute without experiencing pain or sustaining any injury.

An equivalent scenario would involve placing four 15 kg concrete blocks (matching the same total weight, contact area, and surface type). However, this condition would be entirely different, as it would result in extreme pain and a high risk of serious injury.

[Bored chemist]

However, this condition would be entirely different, as it would result in extreme pain and a high risk of serious injury.

How do you know?
You have not tried, have you?
You are repeatedly making an unsupported claim and then using that to say that physics is wrong.

[Yahya A.Sharif (OP)]

However, this condition would be entirely different, as it would result in extreme pain and a high risk of serious injury.

How do you know?
You have not tried, have you?
You are repeatedly making an unsupported claim and then using that to say that physics is wrong.

First of all, the concept of leverage is a well-established principle in physics.
Second, I tested this myself: when I placed a 15 kg concrete block, it caused me intense pain almost immediately. By contrast, supporting 63.4 kg of body weight caused no pain for a full minute. Do you see the difference now?

[Bored chemist]

" the concept of leverage is a well-established principle in physics."
So is photoionization.
And that is also completely irrelevant to the matter under discussion.

[Yahya A.Sharif (OP)]

" the concept of leverage is a well-established principle in physics."
So is photoionization.
And that is also completely irrelevant to the matter under discussion.

Your denial of reality makes it unsurprising that you fail to grasp its physical explanation.

[Yahya A.Sharif (OP)]

I am still waiting for Kryptid to confirm his inability to apply the same weight as an inanimate object on his abdomen.

[Bored chemist]

" the concept of leverage is a well-established principle in physics."
So is photoionization.
And that is also completely irrelevant to the matter under discussion.

Your denial of reality makes it unsurprising that you fail to grasp its physical explanation.

The leverage is the same if you lie on the rock, or the rock lies on you.
It doesn't shock me that you fail to see it's not an explanation because you often seem to fial to grasp science.

[Yahya A.Sharif (OP)]

👉 Check out my latest research on this new discovery which I'll be presenting as a poster at IUPS 2025.
👉 Discover more of my research work on my SSRN profile.

[Bored chemist]

👉 Check out my latest research on this new discovery which I'll be presenting as a poster at IUPS 2025.
👉 Discover more of my research work on my SSRN profile.

I'm sure that will be a valuable learning experience.

[Yahya A.Sharif (OP)]

I'm sure that will be a valuable learning experience.

I am a presenter. The problem is that you believe you understand physics better than anyone else, even though you are not a physicist. The conference committee is well-versed in physiology, which is why they recognized promise and potential in the idea. Therefore, I am neither going to learn-nor am I able to learn-physiology or physics from a chemist. You assume that anything you didn't learn in school or fail to recognize must be wrong and against physics-that is your problem.

[Yahya A.Sharif (OP)]

 @Kryptid, can you confirm that you were unable to apply the same 71 kg weight as an inanimate mass over the same area on the abdomen?

[Bored chemist]

I'm sure that will be a valuable learning experience.

I am a presenter. The problem is that you believe you understand physics better than anyone else, even though you are not a physicist. The conference committee is well-versed in physiology, which is why they recognized promise and potential in the idea. Therefore, I am neither going to learn-nor am I able to learn-physiology or physics from a chemist. You assume that anything you didn't learn in school or fail to recognize must be wrong and against physics-that is your problem.

Re"The problem is that you believe you understand physics better than anyone else, even though you are not a physicist."
No. I just think I understand it better than you do.

" The conference committee is well-versed in physiology, which is why they recognized promise and potential in the idea. "
Steep learning curve ahead.
Will it be videoed?
If so, please provide a  link.

" I am neither going to learn-nor am I able to learn-physiology or physics from a chemist. "
You refuse to learn physics from the physicists and engineers here too.

[paul cotter]

Placing a 15kg concrete block on one's abdomen requires one small modification for a fair comparison: the edges need to be rounded off as a sharp edge could cause inordinate pain, even with a much lighter load.