English nouns, determiners, countability, specificity

When English speakers use a noun word, they indicate its specificity with a combination/selection of forms, inflections, determiners–forms being the syntax pattern it follows, uncountable or countable one, and specificity being:

generic <> non‑generic (unidentified) <> non‑generic (identified) <=> Proper

Note that forms may be one of subtle differences in meaning or entirely different ones, for example, good part of text‑related words such as letter, note, or text itself. Also note that non‑generic (identified) and Proper sense is not so much apart as can be seen in the example of, the sun, Mother, Central Park.

Mathematic means open to learning (a week of serendipity)

(From a Podcast) Yesterday, I find out what an awesome service to humanity Spotify.com become by hearing the interview of the founder on Freakonomics Radio, and become an instant fun and avid user. (From a promotional email) Then, today through a couple of promotional mail reached in my inbox from Mix.com, I found an article about Bill Gates, and in that article, I get to know the Big History Project, and become an instant follower and learner there. P.S. This week I found out what Micro$ost wanted with Sharepoint as well.

Worm moon

春分 starts today, and 啓蟄 is over yesterday. I just learn on Grammar Girl podcast that today's full moon is called worm moon. As 啓蟄 means the time of year when worms start their activities after winter, it is referring to same aspect of nature.

Using the clock face to know if a number is divisible by four

It's relatively easy to reckon whether a number is divisible by four if it's less than 50.
It becomes difficult when it's greater than 50, though you can use a trick of subtracting 50 from the number and see if the difference is divisible by four or not; if it is the original number is not a multiple of four.
The easier way I found is to use the clock face. Using the hour mark for numbers, those divisible by four are located at 12, 4, and 8 o'clock. If you are familiar with the clock face you instantly know 16 or 20 is a multiple of four since it positions at one of those hour marks.
Next. There's a connection between hourly marks, 12 hours around the clock and minute marks, 60 minutes around the clock. Notice the 15 minute mark, 30-minute mark, and so on coincide with 15-hour mark, 30-hour mark respectively. This fact and the fact that those divisible by four are located at particular positions on the clock face help you figure out if a number is a multiple of four.
Take, for example, number 92. Since the 90‑hour mark is at 6 o'clock position, 92 is located at 8 o'clock position, so it's easy to see it's divisible by four.

Legible vs. Readable

I found a good example:

MNEMONIC vs. Mnemonic or mnemonic

Signed up Cambridge Dictionary with my gmail account today. They have extensive marking and notes on uncountable/countable distinctions on noun senses ,and have good grammar section excerpt from the book English Grammar Today. 

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An appositional example with infinite and finite articles.