-
Coal is a
combustible black or brownish-black
sedimentary rock,
formed as rock
strata called coal seams.
Coal is
mostly carbon with
variable amounts of...
- Coke is a grey, hard, and
porous coal-based fuel with a high
carbon content. It is made by
heating coal or
petroleum in the
absence of air. Coke is an...
-
along the
North Sea coast supplying coal to
Yorkshire and London. This also
extended to the
continental Rhineland,
where bituminous coal was
already used...
-
Coal gas is a
flammable gaseous fuel made from
coal and
supplied to the user via a
piped distribution system. It is
produced when
coal is
heated strongly...
-
increasingly prevalent, and a
predominant perception in the 13th
century was that
sea-
coal smoke would affect one's health. From the mid-17th century, in British...
- A Live
Coal in the
Sea,
written by
Madeleine L'Engle and
published in 1996, is the
sequel to
Camilla ****inson (also
published as Camilla), one of L'Engle's...
-
known reference to the use of
coal in
metallurgical smelting. The book is also
referred to as Iron made with Pit-Coale,
Sea-Coale, &c. And with the same...
-
Coal mining is the
process of
extracting coal from the
ground or from a mine.
Coal is
valued for its
energy content and
since the 1880s has been widely...
- all ons****
coal resources in the UK
occur in
rocks of the
Carboniferous period, some of
which extend under the
North Sea.
Bituminous coal is
present in...
-
lining is temporary.
Finely divided coal ("
sea coal") can be
mixed with the clay
lining so when
heated the
coal decomposes and the bod
becomes slightly...
