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 Yearling
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May
3
accepted If A subtends B, can B also subtend A?
May
1
comment If A subtends B, can B also subtend A?
A line can't subtend(1.1) a chord. An angle can't subtend(1) a line. Is this based on taking the lists given in parentheses in the definitions, and taking them to be exhaustive? That interpretation doesn't seem right to me. For example, an area on the surface of a sphere can clearly subtend a solid angle, but those things aren't on the lists in the definition.
May
1
comment If A subtends B, can B also subtend A?
The oxforddictionaries entry has 1 and 1.1, which seem to be basically a line subtending an angle and an angle subtending a line, so this supports your first two paragraphs. But later you have this: "However, I don't think B can subtend A in either case. An line can't subtend a chord. An angle can't subtend a line." This seems to contradict what you said earlier, and I don't see anything in the oxforddictionaries entry to support it.
May
1
revised If A subtends B, can B also subtend A?
added 55 characters in body
May
1
asked If A subtends B, can B also subtend A?
Mar
8
comment Is there a correct gender-neutral, singular pronoun (“his” versus “her” versus “their”)?
This is simply incorrect. The singular "they" dates back to the 14th century.
Jan
6
awarded  Yearling
Nov
26
comment A word for “reaching the top of a hill or mountain”
"Summiting" is the most common term among mountaineers heading for a well-defined, prominent high point. Among rock climbers, one often hears "topping out." This is different because rock climbers are often not interested in reaching an actual summit. Topping out would often refer to reaching the top of the technical climbing, after which you might rappel off, or continue unroped to an actual summit.
Nov
18
comment Oil is slippery; rubber is _____?
In my experience, rock climbers universally refer to climbing slippers as being made of "sticky rubber." As a physicist, I would refer to rubber as "high-friction."
Oct
14
awarded  Notable Question
Sep
24
awarded  Autobiographer
Sep
11
awarded  Necromancer
Sep
5
accepted Etymology of “age of majority?”
Sep
4
asked Etymology of “age of majority?”
Jul
24
comment What's the difference between “colloquium”, “seminar”, and possibly other such words?
Doesn't a seminar sometimes go for multiple meetings on the same topic?
Jul
24
comment What's the difference between “colloquium”, “seminar”, and possibly other such words?
And then you have "symposium," which literally means a drinking party.
Jul
23
comment Active vs Passive voice in lab reports, and history of scientific usage
See academia.stackexchange.com/questions/11659/…
Jul
20
answered “Karma is a bitch”
Jul
20
comment What is the difference between a 'rocket' and a 'missile'
Etymologically, "missile" means something sent. It's derived from "mittere," which means to send or let go. Cf. "missive." When you shoot an arrow at a target, you let the arrow go and send it to the target.
Jul
19
comment What is the difference between a 'rocket' and a 'missile'
Even modern military missiles are not necessarily rockets. Cruise missiles usually have a turbofan for propulsion. A rocket is a device that carries its own supply of energy and reaction mass. The reaction mass is what it pushes against; it doesn't push against the air. This is why a rocket can operate in the vacuum of outer space.