Science & TechMental model
Why giant movie ants would collapse on the spot.
Double a body's size and its surface area quadruples, but its volume and weight increase eightfold. Legs support weight in proportion to their cross-section, which is an area. An ant scaled up 100 times would be a million times heavier, yet its legs only 10,000 times stronger. The same law explains why elephants have pillar legs and mice have thin ones.
Useful: The principle shows up everywhere: small animals lose heat fast, large tanks hold it, and small companies scale differently from giants.
Source: en.wikipedia.org