In the meantime, @Reggie_O_Donoghue, I would ask you to refresh yourself with the associated meanings of the term to which Creationists like to refer: “expanse”… or “stretched out”.
On one Creationist page, we actually find this very handy description:
רָקִיעַ raqiya` raw-kee’-ah
from 7554; properly, an expanse, i.e. the firmament or (apparently) visible arch of the sky:—firmament.
רָקַע raqa` raw-kah’
a primitive root; to pound the earth (as a sign of passion); by analogy to expand (by hammering); by implication, to overlay (with thin sheets of metal):—beat, make broad, spread abroad (forth, over, out, into plates), stamp, stretch.
If you look at the original root, everything about it seems to connect with hammers:
pounding a lump of gold to stretch it out;
pounding thin sheets of gold to overlay an expanse;
pounding to stretch metal across an ordinary space of unadorned material.
As you know, craftsmen can apply gold leaf to flat surfaces, domed surfaces, and variable surfaces found in the complex topology of statues:
Behold the “expanse” of gold hammered onto a four-story Athena, in a full-sized replica of the Parthenon, right here in America - - Nashville, Tennessee!