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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: Monday, February 11, 2019 1:09:06 PM
Number of Posts: 1,145
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  Last 10 Posts
Topic: Anthracite Coal First Burned as Residential Heating Fuel (1808)
Posted: Monday, February 11, 2019 1:09:06 PM
Anthracite derives from the Greek anthrakítēs (ἀνθρακίτης), literally "coal-like".

The common term for Anthracite, where I was born and raised (former Yugoslavia), translates literally to "stone coal". In the place where I grew up, we mined mostly lignite. That "lignite" in thar's post reminded me of my youth, and I also realized that I had never learned the origin of the word.

lignite (n.)

"imperfectly formed coal," 1808, from French, from Latin lignum "wood" (see ligni-). Brown coal that still shows traces of the wood it once was. Probably directly from Lithanthrax Lignius, name given to woody coal by Swedish chemist Johan Gottschalk Wallerius (1709-1785) in 1775.

ligni-

sometimes ligno-, word-forming element used from late 19c. and meaning "wood," from Latin lignum "wood (for fuel or construction), firewood," from PIE *leg-no-, literally "that which is collected," from root *leg- (1) "to collect, gather." Related: Lignify; lignification.

As remembrance of times past, here are two pictures.


The steam engine was once part of technological revolution. The one in the picture is not particularly environmentally friendly.


Interior of a2 class steam locomotive cabin with driver at controls and fireman shovelling coal into firebox

The origin of word "chauffeur" is related to the steam engine.

chauffeur (n.)

1896, "a motorist," from French chauffeur, literally "stoker," operator of a steam engine, French nickname for early motorists, from chauffer "to heat," from Old French chaufer "to heat, warm up; to become hot" (see chafe). The first motor-cars were steam-driven. Sense of "professional or paid driver of a private motor car" is from 1902.

The '95 Duryea wagon, which won the Chicago contest last Fall, was exhibited at the Detroit Horse Show last week. Charles B. King, treasurer of the American Motor League, acted as "chauffeur," as the French say. ["The Horseless Age," April 1896]
Topic: window-shopping
Posted: Saturday, February 9, 2019 5:06:19 PM
"You're always window shopping but never stopping to buy"
(Georgy Girl)
Topic: Elemental: the periodic table at 150
Posted: Thursday, February 7, 2019 8:38:33 AM
I like this T-shirt.
Topic: fritter
Posted: Thursday, February 7, 2019 8:02:36 AM
"Ticking away the moments that make up a dull day
You fritter and waste the hours in an offhand way"
Topic: Elemental: the periodic table at 150
Posted: Monday, February 4, 2019 8:11:44 PM
Kirill Vorobyov wrote:
, as chemical elements don't go anywhere from the planet,

Hydrogen and helium do (Atmospheric escape). But hydrogen is not a problem, we have have a lot of hydrogen.

Helium can be a problem. We don't have much helium and once helium is released to the air it's gone forever. It eventually escapes to outer space.
Topic: Please delete this thread
Posted: Monday, February 4, 2019 12:50:33 PM
I can see the photo in thar's posts. The photo is not a mystery.

The mystery is the original post. I wonder what was it about.

Tara2, could you please post the original post again? You could also ask TFD not to delete this thread.Whistle
Topic: Elemental: the periodic table at 150
Posted: Sunday, February 3, 2019 3:28:24 PM
Source: The Guardian

"This year marks the 150th anniversary of the publication of the first periodic table."
"Russian chemist Dmitri Mendeleev laid out his vision for ordering the chemical world in 1869"

Possibly the world’s oldest extant copy of Mendeleev’s periodic table


The European Chemical Society’s periodic table of the elements, outlining their availability, derivation and use in smartphones



"Mendeleev had only 61 known elements at the time to sort", currently there are 118 elements in the periodic table.

Current periodic table


There are concerns in the European Chemical Society (EuChemS) that some chemical elements may become scarce. These elements, called the endangered elements, are marked with warm colors in the above EuChemS' table.

Some endangered chemical elements are as follows. (Some uses of these elements are given in parentheses)

zinc, silver, helium (cooling in MRI), gallium (manufacturing of semiconductors) -- serious threat in the next 100 years

chromium (stainless steel), platinum (temperature sensors, catalytic converters), cobalt (manufacturing of corrosion and
wear-resistant alloys) -- rising threat from increased use

copper, gold, nickel, neodymium (magnets for electrical motors) -- limited availability, future risk to supply

Some chemical elements that future generations won't have to worry about are:
iron, aluminium, hydrogen, nitrogen, silicon (silicon dioxide is the major constituent of sand), carbon (we don't know what to do with CO2).
Topic: Warning: email scam - don't fall for it!
Posted: Tuesday, January 29, 2019 1:40:22 PM
I especially like this:
" ... I guarantee you that I will not disturb you
again after payment!
This is the word of honor hacker"

Who wouldn't believe this guy?

Topic: Two things that made me laugh today
Posted: Monday, January 28, 2019 1:04:43 PM
UAE gender equality awards... are all won by men

Family kicked off plane for body odor

Topic: Yes and yes
Posted: Sunday, January 27, 2019 1:08:39 AM
Thanks, palapaguy, and Drag0nspeaker, for your comments.

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