Titanic tourist sub goes missing sparking search

[Angelo Farina]

Again, a collection of numbers conveying little information able to allow a subjective understanding of the forces involved. C'mon Angelo, you can be more helpful than that.

As said, the only physical quantity relevant for evaluating an explosion/implosion is the energy released, which I estimated at the best of my (limited) knowledge.
If you can provide a better estimate of this quantity, please post your data.
Computing the total force on the vessel is meaningless, as the force is distributed on a convex shape, hence its resultant is null.

 

[Capt Jim Wyatt]

It's time for the colonies to adopt the metric system.

Nah - we went to the moon and back a few times using the imperial system.

 

[berndo]

But as a naturalized US citizen, I did laugh when I first heard that "inches, feet and pounds are measurements only used in countries that have put people on the moon...."

I don't think engineers in the US use inches and feet.

It's also interesting to see the number of things designed from scratch in metric units that have a dimension of, say for instance, 25.4mm, or something similarly related to base imperial units.

Sometimes you use what's there instead of making new stuff. DIN is German but the thread is imperial.

 

[JustSurfaceInterval]

It's always one of my favourite pleasures to trigger a discussion between Metrics and Imperials... It's a safe bet
BTW: i would guess the Apollo Programme has been designed in metrics...

 

[Still Kicking]

I don't think engineers in the US use inches and feet.

And who says the Germans don't have a sense of humor?

 

[Angelo Farina]

As stated, Germans invented rockets.

Then we taught them how to think in inches, feet, and pounds, and BAZINGA! We have nuclear weapons, nuclear reactors, and Saturn V.

These devices were all designed by teams of engineers and scientists using SI, not crap imperial units: Basics of Space Flight - Solar System Exploration: NASA Science

 

[Dan]

But as a naturalized US citizen, I did laugh when I first heard that "inches, feet and pounds are measurements only used in countries that have put people on the moon...."

Brittish revenge after US kicked their butts in 1776.

 

[Angelo Farina]

Nah - we went to the moon and back a few times using the imperial system.

The Apollo program was entirely done using SI units.
The usage of imperial units in space programs caused some big errors, the most famous one was the crash-landing of the Mars Climate Orbiter: How NASA Lost a Spacecraft From a Metric Math Mistake | SimScale

 

[berndo]

And who says the Germans don't have a sense of humor?

I know Mericans use the term 'engineer' very loosely. An engineer to me is somebody who designs sophisticated mechanical or electrical components. Why would any scienctiest or engineer use an inferior system that nobody uses?
Other than defence products, what's still made or designed in the US these days anyway?

 

[Angelo Farina]

I don't think engineers in the US use inches and feet.


Sometimes you use what's there instead of making new stuff. DIN is German but the thread is imperial.

Not exactly. DIN thread is 5/8 - 14 BSP (British Standard Pipe). That is different from imperial threads used in US.
It is a relic of the past, but DIN standardised it because that thread was common here in Europe.