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Profile: coag
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User Name: coag
Forum Rank: Advanced Member
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Interests: English language
Gender: Male
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Joined: Saturday, March 27, 2010
Last Visit: Wednesday, April 24, 2019 3:58:59 AM
Number of Posts: 1,169
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  Last 10 Posts
Topic: feed back
Posted: Monday, April 22, 2019 1:07:57 PM
I don't think "feed back" is a new expression, at least not in electrical engineering.

This is what I found on the Internet. (my emphases added)

Both feedback (also spelled feed-back) as a noun and as a (phrasal) verb exist from the early 1920s, first in the field of radio-telegraph technology. So "feed back" is already a verb in English. Whether feed back, feed-back, and/or feedback gains wider usage is unknown to me.

The Oxford English Dictionary (OED) provides the following.

to feed back (Electronics and Cybernetics)
(a) to return (a fraction of an output signal) to an input of the same or a preceding stage of the circuit, device, process, etc., that produced it. Also transferable. Chiefly in passive. (Cf. feedback noun)

1921 Wireless World 10 Dec. 571/2 The magnified oscillations are fed back again into the grid circuit.
Topic: If he had lived, he would have been twenty years old then.
Posted: Friday, April 19, 2019 5:41:34 PM
Here's another thread with a similar question.
Had he lived, he would have turned 100
Topic: The married Zainal
Posted: Wednesday, April 3, 2019 5:03:07 AM
Thank you very much for your response, Drag0nspeaker.
Topic: The married Zainal
Posted: Monday, April 1, 2019 6:26:48 PM
This is a confusing issue which I've been trying to figure out for a long time.

This TFD thread might be interesting to some learners: old Paris/the old Paris.

Personal names, I've seen with both the definite and indefinite article. Here are some examples. (My emphasis added)

As a child, the second oldest of nine siblings, the young Kennedy spent his summers in Hyannis Port on Cape Cod, as frequently shown in photos. (The Atlantic magazine)


The young Dick Nixon in football gear (center), for the Whittier College team.
(The Life, a book by John A. Farrell)

When a young Bush bragged about the goals he'd scored in a soccer game, his mom said, "That's nice, George, but how did the team do?" (The Atlantic magazine)

The Life and Loves of a Young Obama (The New Republic)

And remember those pictures of a young Obama smoking what looked like marijuana (though it could have been a cigarette)?
(The Washington Post)

When I first met him, I had much the same reaction as I had after my initial encounter with a young Obama in 1997: This guy's trajectory is definitely upward. Nothing in this book changes my mind about that. (The Washington Post)

In 1980, a 33-year-old Donald Trump sat down with Tom Brokaw to talk real estate in New York City, predicting that investments in inner cities would do well in the long run and that, five years out, a hotel room in NYC might fetch $1,000 per night. (The Atlantic magazine)

How a Young Dick Cheney Fixed Prices for Millions (The Atlantic magazine)
Topic: broken-hearted
Posted: Sunday, March 31, 2019 2:26:49 AM
Some love songs.

What Becomes Of The Broken Hearted, Jimmy Ruffin
How Can You Mend a Broken Heart, The Bee Gees
Heartbreaker, Dionne Warwick
Topic: "think to be" vs "believe to be"
Posted: Saturday, March 30, 2019 9:04:47 PM
Here's a realistic example where she doesn't believe him to be Jimmy.

Sandy: What's your name?
Jack: Jimmy Reese.
Sandy: You don't look like a Jimmy.
Jack: What do I look like?
Sandy: I don't know. But not a Jimmy.

(Jack Reacher, 2012)
Topic: How to leave the European Union?
Posted: Saturday, March 30, 2019 1:43:22 PM
Hello all,

Are the following two sentences acceptable, with respect to the use of the emphasized text?

1. March 29th was meant to be the day when Britain would leave the European Union.
2. March 29th was meant to be the day when Britain would have left the European Union.

How would native speakers formulate this sentence?
Topic: soporific
Posted: Saturday, March 30, 2019 1:27:01 PM
I couldn't think of any potential cognates of the word.

This is what the Online Etymology Dictionary says.

*swep-
Proto-Indo-European root meaning "to sleep."

It forms all or part of: hypno-; hypnosis; hypnotic; hypnotism; insomnia; somni-; somnambulate; somniloquy; somnolence; somnolent; Somnus; sopor; soporific.□

Croatian, Serbian "san"="a sleep, dream" comes from the same Proto-Indo-European root. Polish "sen", Russian "сон", Czech "sen".


Topic: triumph and delight on a discovery
Posted: Monday, March 25, 2019 2:28:38 PM
thar wrote:
Ancient Greek εὕρηκα (heúrēka, “I have found”)

Thanks, thar, for this. It didn't occur to me before that "eureka" and "heuristic" might be etymologically related.
Topic: n^4+4
Posted: Sunday, March 24, 2019 10:20:03 PM
"All positive integers n" sounds a bit awkward to me. I would write:
1. Find all n∈Z+ such that n^4+4 is a prime number.
or
2. Let n be a positive integer. Find all n such that n^4+4 is a prime number.

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