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posted by anviange
What are the most important scientific
discoveries of all time? The answer might
include Copernicus's idea that the sun is
at the center of the solar system,
Newton's laws of motion, Mendeleev's
periodic table of elements, Einstein's
theory of relativity and Darwin's theory of
evolution. There are numerous great
scientific discoveries that have
significantly influenced the way we think
and live throughout history. 100 Greatest
Discoveries recounts the 100 most
important scientific discoveries of all time
and explains them with historical re-
creations, archival footage and interviews
with scientists.
100 Greatest Discoveries - Chemistry
This episode recounts thirteen important
discoveries in chemistry, including Joseph
Priestly's discovery of oxygen, John
Dalton's atomic theory, and Dmitry
Mendeleev's discovery of periodic table of
elements. Here are the thirteen important
discoveries:
1. Oxygen (1770s)
2. Atomic Theory (1808)
3. Atoms Combine Into Molecules (1811
onward)
4. Synthesis of Urea (1828)
5. Chemical Structure (1850s)
6. Periodic Table of the Elements (1860s -
1870s)
7. Electricity Transforms Chemicals (1807
- 1810)
8. The Electron (1897)
9. Electrons for Chemical Bonds (1913
onward)
10. Atoms Have Signatures of Light
(1850s)
11. Radioactivity (1890s - 1900s)
12. Plastics (1869 and 1900s)
13. Fullerenes (1985)
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added by anviange
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sodium polyacrylate is a super-absorber and can absorb 200 to 300 times its own weight this is used as fake snow
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Concentrated sodium hydroxide solution easily reacts with aluminum foil. One of the products of this reaction is the hydrogen gas.
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Making fire with KMnO4+H2SO4 and acetone.
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Particle physics usually has a hard time competing with
politics and celebrity gossip for headlines, but the Higgs
boson has garnered some serious attention. That's
exactly what happened on July 4, 2012, though, when
scientists at CERN announced that they'd found a
particle that behaved the way they expect the Higgs
boson to behave. Maybe the famed boson's grand and
controversial nickname, the "God Particle," has kept
media outlets buzzing. Then again, the intriguing
possibility that the Higgs boson is responsible for all the
mass in the universe rather captures the imagination,
too. Or perhaps we're...
continue reading...
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thepenguinprof
chemistry
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The dehydration of sucrose by sulphuric acid.
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