The book of wonders : $b gives plain and simple answers to the thousands of everyday questions that are asked and which all should be able to, but cannot answer...
Science
The book of wonders : $b gives plain and simple answers to the thousands of everyday questions that are asked and which all should be able to, but cannot answer...
Curiosities and wonders; Encyclopedias and dictionaries; Questions and answers; Science -- Miscellanea; Technology -- Miscellanea
It is only within a modern period that the state or city has assumed
responsibility in the matter of public lighting, which for the most
part had been left to the good will and public spirit of citizens.
But in England a proclamation was issued to the effect that every
individual should place a candle in each of the lower windows of his
house, and keep it burning from nightfall until midnight.
[Illustration: THE FIRST OIL LANTERN
The first “Réverbère”--oil lantern--with a metal reflector, used
to light the streets of Paris. It was invented by Bourgeois de
Châteaublanc in 1765, and used until the introduction of gas.]
Paris was the first city to improve upon this method of street
lighting, and in 1658 huge, vase-like contrivances, filled with resin
and pitch, were set up in the principal thoroughfares. The improvement
proving, as may readily be seen, both dangerous and expensive, the
falct, so-called, were replaced by the lantern. This was at first
simply a rude frame, covered with horn or leather, within which a
candle burned. For more than one hundred years this was the extent of
the illumination which the authorities could provide. But of course
it was understood that no honest man would venture abroad without his
torch or flambeau, and as London, Berlin, Vienna, and all leading
cities of Europe, were in like case, the darkness of Paris could be
borne.
[Illustration: Argand got his first suggestion for his burner--invented
in 1780--from this style of alcohol lamp, then in general use
throughout France.]
But progress had been made, and early in the eighteenth century the
Corporation of London entered into contract with a certain individual
to set up public lights, giving him permission to exact a sum of six
shillings from every householder whose actual rent exceeded ten pounds.
In the middle of the same century the Lord Mayor and Common Council
applied to Parliament for power to light the streets of London better.
From the granting of this permission dates improvement in public
lighting.
Where Did the Word “Gas” Originate?
A Belgium chemist, Van Helmont, coined the word “gas” in the first half
of the seventeenth century. The Dutch word “geest,” signifying “ghost,”
suggested the term to him, and his superstitious neighbors hounded him
into obscurity for talking of ghosts.
[Illustration: Hanging lamp from Nushagak in Southern Alaska. It is
suspended from the framework of the tent by cords. Oils and fats from
northern animals give a clear and steady light, and Eskimo lamps are
frequently praised by travelers.]
[Illustration: WHAT THE BIG TANK NEAR THE GASWORKS IS FOR
SIX MILLION CUBIC FOOT GAS HOLDER.
Almost every boy and girl has seen the big tank near the gas works, and
most of them have wondered what was in it and what it is for. This big
tank is a “holder” in which the gas is stored after it is manufactured.
Public-domain text, read in full here on John Shaqi.
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