加载中…How.About.Isolated.Evidence.2
(2023-04-10 09:24:53)How About Isolated
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2
2. In
1774 , Scheele found that pyrolusite reacted with hydrochloric
acid and then
produced a
suffocating
yellow green gas , which was
named "hydrochloric acid
oxide".
At that
time of the very begaining , was this an
isolated
evidence
?
In fact
, it
was just
the isolated
the
realization and application of
chlorine for human
being
3. In
1850 , Alexander Parks mistakely mixed
collodion
with camphor
, then
his such
a mistake operation
u nexpectedly produced
a bendable material
called
"paksin"
At that
time of the very begaining , was this an
isolated
evidence
?
In fact
, it was
just
the isolated led
to
the
plastic industry for human being !
4. In 1911 ,
Onnes found
that resistance of
mercury
jumped
down to zero
when mercury
was at helium
temperature， that
was superconducting
.
At that
time of the very begaining , was this an
isolated
evidence
?
In fact
, it was
just the
isolated e vidence led
to
the
understanding and application of
superconductivity
for
human being .
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Written on December 10, 2019
------------------- To be
continued.
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