Sunday, 25 October 2015

Supination, pronation, sunwise, clockwise, anticlockwise and counterclockwise

A clockwise (typically abbreviated as CW) motion is one that proceeds in the same direction as a clock's hands: from the top to the right, then down and then to the left, and back up to the top. The opposite sense of rotation or revolution is (in Commonwealth English) anticlockwise (ACW), or (in North American English) counterclockwise (CCW).



Supination. Rotation of the hand or forearm so that the palmar surface is facing upward



Pronation. Rotation of the hand or forearm so that the surface of the palm is facing downward or toward the back



From the anatomical position, with the arms fully extended to the sides of the trunk and the palms facing forward, pronation is the movement of the hands to turn the palms posteriorly. In other words, pronation involves placing the palms into the prone (face-down) position, like someone would do when looking at the backs of their hands....



The reason for the clockwise orientation of most screws and bolts is that supination of the arm, which is used by a right-handed person to turn a screw clockwise, is generally stronger than pronation. Also, it was wise to adopt a single standard version for most screws and bolts – in order to eliminate endless confusion.



Why do screws tighten clockwise?

This is because the biceps muscle - the strongest muscle in our arm - actually has two functions:

1) flexion of the arm and

2) supination (which is the motion used when screwing in a screw clockwise).



Why do clocks go clockwise?

The clock that we use today was originally developed from the sundial, which used the sun to cast a shadow that would tell what the time was. In fact, before clocks had become popular the term wasn’t “clockwise,” it was “sunwise,” because that’s the way the rotation went.


Wednesday, 7 October 2015

What is the difference between loosen and unloosen?

None, or almost none.


There are two different prefixes here.


The familiar one means "not": unhappy, unfair, unusual, unseen.


The other prefix is rarer. I'll quote the American Heritage Dictionary, 4th edition:

1. To reverse or undo the result of a specified action: unbind.

2a. To deprive of or remove a specified thing: unfrock.

b. To release, free, or remove from: unyoke.

3. Used as an intensive: unloose.



Thursday, 25 June 2015

Parts of Hammers

Hammers have two parts--the hammer handle and hammer head.

Many hammers have handles of hickory or ash.

Use the face of the hammerhead for most work.

Some hammerheads have two identical faces, e.g. sledge hammers

Most hammerheads have only one face; the opposite side of the hammerhead is called the peen.

Machinists' hammers have round or ball peen.

Carpenters' hammers include a claw peen for pulling nails.

See more at

See also a Hammer Buying Guide at

Tuesday, 23 June 2015

Number 1 Haircut

Q: If a have my hair cut as a number 1, how long is the hair in mm?
A: Grade 1 - 3mm
Grade 2 - 6mm
Grade 3 - 9mm
Grade 4 - 12mm
Grade 6 - 19mm
Grade 8 - 25mm

Q: My husband just had a "number 2" hair cut. What does that mean? Does it mean he has shaved his whole head?
A: Here are the general lengths specified by the different numbered length guards:
      •   #1 – one-eighth of an inch
      •   #2 – one-quarter of an inch
      •   #3 – three-eighths of an inch
      •   #4 – one-half of an inch
      •   #7 – seven-eighths of an inch
      •   #8 – one inch
The #5 and #6 length guards are special tapered guards designed for tapering the hair in an area of the head. One end of the guard is generally longer while the other is much shorter and the lengths graduate in between the two.

Q: Haircut Numbers - What Do They Mean?
A: #1 is 1/8 th inch
#2 is ¼ inch
#3 is 3/8 inch
#4 is ½ inch
#6 is ¾ inch
#8 is 1 inch

Q: How long is a grade 1 2 3 and 4 haircut?
A: Grade 1 - one-eighth of an inch (3mm)
Grade 2 - one-quarter of an inch (6mm)
Grade 3 - three-eighths of an inch (9mm)
Grade 4 - one-half of an inch (12mm)

Sunday, 21 June 2015

Minced Oath

A minced oath is a euphemistic expression formed by misspelling, mispronouncing, or replacing a part of a profane, blasphemous, or taboo term to reduce the original term's objectionable characteristics.

Some examples include gosh, darn, dang, and heck.

See more at

Wednesday, 17 June 2015

Homonyms and Consecutive Homonyms

Two words are homonyms if they are pronounced or spelled the same way but have different meanings



Examples -

Joe always pares his pears in pairs

Jared didn't know if the correct answer on his Oceanography homework was choice A, B, or C. His friend said, "Look. It's Sea C -- see?"

Wendy wanted to shop at the new store called "Buy." She said, "I have to hang up now. I'm going by Buy. Bye."

The English teacher asks one of his foreign students: "What time do you have?", and he answers : "Two to two". So the teacher asks another student : 'And you?'... the other student says "Two to two too"



More examples-

Because of living in days of yore, you're your own worst enemy.

I don't carry cash because it's too easy to lose loose change.

The horse could not only count to one, but could count to two, too.

Did the mill wright write right on the left side by mistake?


Tuesday, 16 June 2015

Shipping Containers

A shipping container is a container with strength suitable to withstand shipment, storage, and handling. Shipping containers range from large reusable steel boxes used for intermodal shipments to the ubiquitous corrugated boxes. In the context of international shipping trade, "container" or "shipping container" is virtually synonymous with "(standard) intermodal freight container" (a container designed to be moved from one mode of transport to another without unloading and reloading).

Container ships are cargo ships that carry all of their load in truck-size intermodal containers, in a technique called containerization. They are a common means of commercial intermodal freight transport and now carry most seagoing non-bulk cargo.
Container ship capacity is measured in twenty-foot equivalent units (TEU). Typical loads are a mix of 20-foot and 40-foot (2-TEU) ISO-standard containers, with the latter predominant.

But the record-breaking aspect of the Globe, owned by Shanghai-based China Shipping Container Lines and built in South Korea, is its capacity. It can carry 19,100 standard 20ft containers. That's estimated to be enough space for 156 million pairs of shoes, 300 million tablet computers or 900 million standard tins of baked beans.