Hebdarole

Hebdarole is a period-7 oscillator that was found by Noam Elkies in November 1997. It was originally found in the larger but more symmetric induction coil form shown below that creates 2 sparks. The smaller version shown to the right was found soon after by Alan Hensel using a component found by David Buckingham in June 1977, but that only creates one domino spark.

Hebdarole
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Pattern type Oscillator
Number of cells 97
Bounding box 24×19
Period 7
Mod 7
Heat 25.7
Volatility 0.49
Strict volatility 0.49
Discovered by Noam Elkies
Alan Hensel
Year of discovery 1997

Its population cycles between 97, 103, 99, 111, 103, 119, and 107 cells.

The original form of hebdarole
gollark: Wondrous.
gollark: ++magic pyc = bot.get_guild(346530916832903169).get_channel(348698124371361793)return f"#{c.name} \n{c.topic}\nPosition: {c.position}\nSlowmode: {c.slowmode_delay}\nLast message: {c.last_message_id}\nOverwrites: {[f'{o.type}({o.id}): {o.allow} ✅ {o.deny} ❎' for o in c._overwrites]}"
gollark: ++magic pyc = bot.get_guild(346530916832903169).get_channel(348698124371361793)return f"#{c.name} \n{c.topic}\nPosition: {c.position}\nSlowmode: {c.slowmode_delay}\nLast message: {c.last_message_id}\nOverwrites: {[f'{o.type}({o.id}): {o.allow} ✅ {o.deny} ❎' for o in c._overwrites]}"
gollark: ...
gollark: ++magic pyc = bot.get_guild(346530916832903169).get_channel(348698124371361793)return f"#{c.name} \n*{c.topic}*\nPosition: {c.position}\nSlowmode: {c.slowmode_delay}\nLast message: {c.last_message_id}\nOverwrites: {[f'{o.type}({o.id}): {o.allow} ✅ {o.deny} ❎' for o in c._overwrites]}"

See also
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