From Lostpedia

The makeshift lightning rod that Desmond makes. ("Every Man for Himself")

A lightning rod was built by Desmond after he failed to convince Claire to move her tent. The lightning rod apparently saved Claire's life when it later was struck by lightning. ("Every Man for Himself")

The implication is that Desmond foresaw the coming of a storm, and where lightning was going to strike nearby, whereupon he asked Claire to move. (In later episodes, it was confirmed that Desmond could foresee events through "flashes". Failing to convince her, he built a lightning rod. However he called his lightning rod an experiment, indicating that he was to some degree unsure about his prediction. The successful outcome confirmed that he was able to see the future, and furthermore affect its outcome via his own actions, an illustration of the theme of "fate versus free will".

Desmond later revealed that it was made to save not Claire's, but Charlie's life. ("Flashes Before Your Eyes")

Construction

• The lightning rod was constructed from a wood tower, cabling from the fuselage to conduct to earth ground, and the five iron from the golf clubs, borrowed from Paulo, who at the time was driving kiwis into the ocean. The construction looked so odd that Hurley asked if it was simply artwork.

Desmond Hume (X) Portrayed by Henry Ian Cusick Centric episodes "Live Together, Die Alone" • "Flashes Before Your Eyes" • "Catch-22" • "The Constant" • "Jughead" Flashback characters Auctioneer • Bartender • Billy • Pierre Chang • Brother Campbell • Coffee shop worker • David • Delivery man • Derek • Donovan • Eloise • Daniel Faraday • Eloise Hawking • Charlie Hume • Penelope Hume • Kelvin Inman • Jimmy Lennon • Man wearing red shoes • Brother Martin • Master Sergeant • Charlie Pace • Partridge • Photographer • Physics student • Receptionist • Ruth • Efren Salonga • Sergeant • Elizabeth "Libby" Smith • Soldier • Suited guard • Charles Widmore Items Letters (Desmond) • Elizabeth • Letter (Penny) • Lightning rod • MacCutcheon whisky • Our Mutual Friend (book) • Photograph • Satellite phone • Our Mutual Friend (boat)

From the RuneScape Wiki, the wiki for all things RuneScape

Conductor

Also known as?	Lightning rod
Release date	Unknown edit
Members only?	Yes
Quest item?	Yes
Tradeable?	No
Equipable?	No
Stacks?	No
High Alchemy	0 coins
Low Alchemy	0 coins
Destroy	Drop
Store price	Not sold
Examine	A silver lightning conductor.
Weight	Approximately 4 kg

A Conductor is an item used only in the Creature of Fenkenstrain quest. It is obtained by melting a silver bar in a furnace with a conductor mould in the player's inventory. This requires level 20 Crafting. It is used to repair the conductor upstairs in Dr Fenkenstrain's castle. Players can make these after the quest; however, they are useless once the quest is complete.

From Wookieepedia, the Star Wars wiki.

A lightning rod was a type of weapon used by the Ferroans on Zonama Sekot. Appearing as a crystal set in a staff, it fired bolts of lightning from the crystal.

Appearances

• Force Heretic III: Reunion (First appearance)