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Vincent
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The big problem is volume vs area:

Take humans:

  • around 1.8m,
  • Legs with a section of around 10cmx10cm (I know, very aproximateapproximate).
  • Around 80Kg

That mean 100cm^2 need to handle around 80kg. If you divide, it is 0.8Kg per square centimeter.

Take an animal of twice size made with similar morphology/materials:

  • 3.6m height,
  • Legs of 20x20, or 400cm^2
  • As the weight depends on the volume, you could expect 640Kg (8022*2)

That mean now you have 640/400 = 1.6Kg/cm^2

Summarizing: each time you duplicate size, you need materials 2 times stronger. That is why you could have insects with very thin feet and an Elephant require very short/strong feet.

Muscles and bones have a specific material resistance, so you are limited to a maximum size. I would say around what Dinosaurs or equivalent. Basically, Gozilla or KingKong are totally out of "real" possibilities.

If you want bigger creatures, you could imagine stronger materials (metal or carbon-fiber exoskeleton), but that will just increase the maximum size by a factor of a few times (tens of times for carbon fiber).

The other alternative is to make the creature to live in an other environment which compensate gravity (water?) so it will be not able to move fast, but it may manage higher sizes (whales).

The big problem is volume vs area:

Take humans:

  • around 1.8m,
  • Legs with a section of around 10cmx10cm (I know, very aproximate).
  • Around 80Kg

That mean 100cm^2 need to handle around 80kg. If you divide, it is 0.8Kg per square centimeter.

Take an animal of twice size made with similar morphology/materials:

  • 3.6m height,
  • Legs of 20x20, or 400cm^2
  • As the weight depends on the volume, you could expect 640Kg (8022*2)

That mean now you have 640/400 = 1.6Kg/cm^2

Summarizing: each time you duplicate size, you need materials 2 times stronger. That is why you could have insects with very thin feet and an Elephant require very short/strong feet.

Muscles and bones have a specific material resistance, so you are limited to a maximum size. I would say around what Dinosaurs or equivalent. Basically, Gozilla or KingKong are totally out of "real" possibilities.

If you want bigger creatures, you could imagine stronger materials (metal or carbon-fiber exoskeleton), but that will just increase the maximum size by a factor of a few times (tens of times for carbon fiber).

The other alternative is to make the creature to live in an other environment which compensate gravity (water?) so it will be not able to move fast, but it may manage higher sizes (whales).

The big problem is volume vs area:

Take humans:

  • around 1.8m,
  • Legs with a section of around 10cmx10cm (I know, very approximate).
  • Around 80Kg

That mean 100cm^2 need to handle around 80kg. If you divide, it is 0.8Kg per square centimeter.

Take an animal of twice size made with similar morphology/materials:

  • 3.6m height,
  • Legs of 20x20, or 400cm^2
  • As the weight depends on the volume, you could expect 640Kg (8022*2)

That mean now you have 640/400 = 1.6Kg/cm^2

Summarizing: each time you duplicate size, you need materials 2 times stronger. That is why you could have insects with very thin feet and an Elephant require very short/strong feet.

Muscles and bones have a specific material resistance, so you are limited to a maximum size. I would say around what Dinosaurs or equivalent. Basically, Gozilla or KingKong are totally out of "real" possibilities.

If you want bigger creatures, you could imagine stronger materials (metal or carbon-fiber exoskeleton), but that will just increase the maximum size by a factor of a few times (tens of times for carbon fiber).

The other alternative is to make the creature to live in an other environment which compensate gravity (water?) so it will be not able to move fast, but it may manage higher sizes (whales).

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The big problem is volume vs area:

Take humans:

  • around 1.8m,
  • Legs with a section of around 10cmx10cm (I know, very aproximate).
  • Around 80Kg

That mean 100cm^2 need to handle around 80kg. If you divide, it is 0.8Kg per square centimeter.

Take an animal of twice size made with similar morphology/materials:

  • 3.6m height,
  • Legs of 20x20, or 400cm^2
  • As the weight depends on the volume, you could expect 640Kg (8022*2)

That mean now you have 640/400 = 1.6Kg/cm^2

Summarizing: each time you duplicate size, you need materials 2 times stronger. That is why you could have insects with very thin feet and an Elephant require very short/strong feet.

Muscles and bones have a specific material resistance, so you are limited to a maximum size. I would say around what Dinosaurs or equivalent. Basically, Gozilla or KingKong are totally out of "real" possibilities.

If you want bigger creatures, you could imagine stronger materials (metal or carbon-fiber exoskeleton), but that will just increase the maximum size by a factor of a few times (tens of times for carbon fiber).

The other alternative is to make the creature to live in an other environment which compensate gravity (water?) so it will be not able to move fast, but it may manage higher sizes (whales).