Calcium

Ca·Z 20·Alkaline Earth·40.08·⭕ 9B · G Major

✟ biblical

▸ The reading

interpretive · art

Your skeleton is supernova output — calcium forged in silicon-burning and Type Ia detonations, now holding your frame upright at one and a half percent of your mass. Job's 'clothed me with skin and flesh, knit me with bones' reads onto the bone metal directly. The same chemistry sets cement; scaffolding inside and out.

The science below is cited as science; the symbolic layers are flagged as interactive art.

⚜ Periodic Frequency

9BG Major

a seat struck in brass — testimony, not prediction

the seat has its own room on ⭕ THE OVAL TABLE — tap the code

▸ The lenses

▸ Discovery

Humphry Davy — electrolysed lime with mercuric oxide, then distilled off the mercury · England · 1808

cited science

▸ Stellar origin

Silicon-burning + Type Ia supernovaeBuilt by silicon-burning in massive stars and scattered by their core-collapse supernovae, which dominate the solar calcium budget; thermonuclear (Type Ia) supernovae add a smaller share.

cited science

▸ Reactivity

Reacts with water (slower than alkalis) to release H₂Alkaline-earth metal. Bones, teeth, and seashells are calcium-mineral composites. Cement chemistry is calcium silicate chemistry.

cited science

▸ Applications