Rung #113 hints and answer

September 20, 2026. Here is the full clue ladder for this puzzle, gentlest first. Each rung is worth fewer points, so open only what you need. The answer stays hidden until you click.

Hint 1, worth 5 points

A version of me once helped shield spacecraft from the searing heat of reentry.

Hint 2, worth 4 points

I am so full of trapped air that I bob on water and spring straight back when you press me.

Hint 3, worth 3 points

Portugal alone produces about half of me for the whole world, harvested by hand every nine years.

Hint 4, worth 2 points

I seal things airtight yet cut with a thumbnail, light, springy, and nearly waterproof.

Hint 5, worth 1 point

I sit in the neck of a wine bottle, quietly keeping the air out until you pull me free.

Extra hint, the shape of the answer

4 letters, starts with “C”.

Reveal the answer to Rung #113

CORK

Cork is still stripped by hand with an axe, because no machine can peel the bark without wounding the tree underneath.

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