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jhami
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What would be the strongest possible material that has a density under 10,000 g/cm^3?
How is this different from the other thread that you started a few days ago?jhami said:What would be the strongest possible material that has a density under 10,000 g/cm^3?
I was asking about an actuator, and now i am asking about a materialberkeman said:How is this different from the other thread that you started a few days ago?
https://www.physicsforums.com/threa...ength-allowed-by-physics.983579/#post-6291151
Yes but diamond is not the upper limit to the strength of a material sevral other materials have been discovered which are harder like https://futurism.com/mit-unveils-new-material-thats-strongest-and-lightest-on-earthDaveC426913 said:Diamond has a density of a mere 3.5g/cm3, yet can withstand compressions up to 60GPa.
Well that's the sticky bit isn't it?jhami said:... how an infinitely advanced civilization would create this (only limited by the laws of physics)
jhami said:1. "Strongest", as in the best combination of Melting Point, Hardness, Yield Strength, Tensile Strength, Toughness, and Stiffness.
I'd say he is asking us to make some assumptions about that for the sake of story.Vanadium 50 said:That's even vaguer. Who is to say what "best" is?
That's actually showcasing strength-per-unit-density. i.e. density - and thus total mass - of the material is a constraining factor.jhami said:Yes but diamond is not the upper limit to the strength of a material sevral other materials have been discovered which are harder like https://futurism.com/mit-unveils-new-material-thats-strongest-and-lightest-on-earth
DaveC426913 said:The OP must ask himself what every sci-fi writer must: how much detail do I need to put in?
Does it need to be scientifically accurate, or does it just need to be plausible?
A good point.Tghu Verd said:... if it's within the realms of our possible, then how "infinitely advanced" can this culture really be?
...the laws of physics... as understood by 21st century Earth, who only invented heavier-than air flight 12 decades ago.jhami said:only limited by the laws of physics.
jhami said:only limited by the laws of physics.
Which would include fabrication, alloys, heat treating, etc.jhami said:I mean the current laws of physics.
Low-density materials are substances that have a low mass per unit volume. This means that they are lightweight and have a high strength-to-weight ratio.
Finding the strongest low-density material is important because it can lead to the development of stronger and lighter materials for various applications, such as in the aerospace and automotive industries. This can result in improved fuel efficiency, reduced costs, and increased performance.
Scientists determine the strength of a low-density material by conducting various tests, such as tensile, compression, and flexural tests. These tests measure the material's ability to withstand forces and stresses without breaking or deforming.
Some examples of strong low-density materials include carbon fiber composites, titanium alloys, and aerogels. These materials have high strength-to-weight ratios and are commonly used in industries that require lightweight and strong materials.
The strongest low-density material can have a wide range of applications, including in the aerospace industry for aircraft and spacecraft components, in the automotive industry for lightweight and fuel-efficient vehicles, in construction for strong and lightweight building materials, and in sports equipment for improved performance and durability.