Made of little things.

-- title: Thermite vs. steel
-- icon: 🔥
-- blurb: A heap of thermite on a stack of iron plates. It burns at 3,500 °C and eats through them one by one.
-- hint: Watch it in Heat view. Iron melts at about 1,700 °C; tungsten (TUNG) holds out much longer.
-- view: 4
-- thumb: 1.6
local IRON, THRM = E.DEFAULT_PT_IRON, E.DEFAULT_PT_THRM
walls(0, 372, 611, 383)

-- A water basin at the bottom
box(196, 330, 199, 371, E.DEFAULT_PT_GLAS)
box(412, 330, 415, 371, E.DEFAULT_PT_GLAS)
box(200, 350, 411, 371, E.DEFAULT_PT_WATR)

-- Iron plates on titanium pillars
box(212, 170, 219, 329, E.DEFAULT_PT_TTAN)
box(392, 170, 399, 329, E.DEFAULT_PT_TTAN)
for k = 0, 2 do box(220, 170 + k * 52, 391, 176 + k * 52, IRON) end

-- The thermite, lit at the top
for y = 140, 169 do
  local half = math.floor((y - 140) * 1.6)
  box(306 - half, y, 306 + half, y, THRM)
end
box(305, 137, 307, 139, E.DEFAULT_PT_PLSM)