summary

Honelako gehiago

The British Empire

Cordiano Maria Annunziata‑k egina

mind map giorgia angelisanti

Giorgia Angelisanti‑k egina

Social Studies Mind Map

Brian Tate‑k egina

Drones (UAVs)

Marcel Bohmann‑k egina

Medieval war machines

Ballista

physics (C,B)

composition/size

elastic potential energy -> kinetic energy

building and design (H)

range < trebuchet

accurate

tension

history (H)

'throw'

Medieval Era

Greeks

Mangonel (F)

power

swing arm

twisted rope

firing

trigger release

loading = inefficient

Trebuchet (A,D,E,G,I)

optimisement

sling length = length long arm

weight ratio = 133:1

beam ratio 4:1

variables

fulcrum position

short + long arm

sling length

physics

lever arm = large amount of movement

potential energy -> kinetic energy

components

counterweight

sling

lever arm

fulcrum