Regardless of what your political alignment is, please think logically and without bias.
Aboriginal people, who were tribal people, clearly did not give a shit about chemical equilibriums, the young modulus or whatever on their stick tents, and other technical stuff. Aboriginal people were survivors in the wild. It's not appropriate for NESA to say "oh they used the knowledge of young modulus and chemical equilibrium to live their life and survive "

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1. none, maintaining static equilibrium?
2. using sticks and stones and balancing them
3. they don't? they make new ones?
4. legit just throw it, and F = ma and P = F/A that causes sooo much damage
5. genuinely none