Epic Quest Bio The case files
Case No. 53 · have you seen this molecule?

Ethylene

the gas that ripens fruit

File sealed

The detectives are still writing this one up. The poster and the facts are below; the film and the interrogation room open soon.

Booking photographs

Ethylene, front view, against a height chart in nanometers
FRONT
Ethylene, side view
SIDE · CID 6325

The suspect, from its real atomic coordinates. Drag to turn it. Height chart in nanometers, ruled every 0.02 nm. A medium apple is about three hundred million times wider.

Rap sheet

Answers to
Ethylene. Also goes by ethene.
Height
0.24 nm. Six atoms, all told.
Weight
0.047 zeptograms
Build
Two carbons, double-bonded. Flat as a sheet of paper.
Habits
A ripening apple makes more of it, then works on the neighbors.
Known for
A plant hormone that’s a gas: the first gas messenger ever found.
First seen
Ancient fig growers gashed figs to ripen them. This was why.
Record
Stripped street trees bare near leaky gas lamps.
Caught
By a Russian botanist whose peas grew sideways in his gassy lab.
Last seen
A 5 mL tube marked APPLE in the fridge at HQ.
220,000,000,000,000,000

of them given off every hour by one ripe apple, give or take.
Apples vary. You’ve never seen one.

The poster on the street

The wanted poster for Ethylene

This is the photocopied wanted poster for Ethylene, No. 53. They were made for noticeboards around Boston, Cambridge and the rest of the east coast.

Found one? Scan its QR code with your phone. If you're a signed-in player, the sighting goes on your record with +1 XP.

Not a player yet? Join the Epic Quest: the real role-playing game of Molecular Reality, a nanopore lab, with the CEO as gamemaster.