Same item, different field, different terms

My examples:

[ul][li]“Left / Right” in day to day use, but “Port / Starboard” in nautical use.[]“Map” in day to day or land surveying use, but “chart” in aviation or nautical navigation.[]“Bit” in machinist & proper carpentry terms, but “drill” in colloquial use (mostly by clueless folks).[/ul][/li]
That last one makes me recognize there are tons of items with technical names that get mis-called as something else by amateurs & newbies. We probably don’t want to start listing those or we’ll be here forever.

I’ve never had any other understanding of “solenoid,” which is why the occasional variant meaning stands out for me.

Good explanation of contactor-v-relay, though. I can see the difference.

Remembered another difference. …

Typically a contactor will mechanically latch in both the on and off position. Power is momentarily applied to the solenoid to switch the contactor between those mechanically-held states.

Typically a relay (absent any other qualifying terms e.g. “latching”) will not work that way. They’re spring loaded to maintain the load either on or off and require a continuous holding current on the control circuit to maintain the load in the other state (off or on). One of the rating specs on a relay is the duty cycle: how long the relay can tolerate its control circuit being energized. Some relays are OK to energize indefinitely; others not.

The contactors in AC units do not latch - at least, I didn’t find any that said they did in my searches for a replacement unit. And latching relays are quite common.

I accept that the difference is solenoid activation vs EM coil/attracted arm activation. That dovetails with everything else I’ve seen and makes sense of it all.

I’ve been to a few Bird Shows. Like a Dog Show, but with birds. I once overheard two men discussing another guy’s parrot, “Did you see Ed Meyer’s cock? It’s beautiful!!”.

Likewise at Dog Shows, “Eleanor’s bitch will be taking home ribbons!!”.

Technically, you’re thinking of an adze.

[quote=“LSLGuy, post:21, topic:729529”]

My examples:

[list][li]“Left / Right” in day to day use, but “Port / Starboard” in nautical use.[/li][/QUOTE]

Except that port and starboard are specific sides of the ship. If you’re on the ship facing the bow, port is to your left. If you’re facing the stern, it’s to your right.

By meaning “very fast” instead of “at a smoothly varying rate, such that the rate is at all times directly proportional to the value”.

“And here comes the Bulgarian contestant, the favourite for the women’s middleweight clean and jerk. I saw her snatch this morning and it was amazing!”

Yeah, ‘Organic’ used to just mean ‘pertaining to living things’ - after about 1820, it was appropriated by the mainstream to mean ‘containing carbon’. I hate it when that happens.

That is what you meant, right? :wink:

Not just that, it doesn’t leave residue like duct tape does. It is meant to be applied and cleanly removed. And is more expensive by a bit to boot partly for this reason. I use gaffer tape in my photographic work, and when I sub duct tape for it, I generally regret it because it’s much stickier.