M
member 737
Guest
Who popularised "victory" sign (two fingers up)?
And I'm waiting for the links.
And I'm waiting for the links.
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- Thread starter Martin
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M
member 737
Guest
Make up a better one, Mr. Smart.
TimmyEatCrisps
New Member
The lifetime of the triplet excited state of pyrene is 145 microseconds. Under identical experimental conditions, the triplet lifetime of perdeuterated pyrene is found to be 340 microseconds. Knowing that the C-H stretching vibration frequency is located at 3015 cm^-1, and assuming the Englman-Jortner exponential energy-gap law to be valid, estimate the frequency of the corresponding C-D stretch. Explain your reasoning.
TimmyEatCrisps
New Member
Thanks. That was a question from a recent exam of mine. My answer to which was to make a hasty retreat to the union bar...
Martin
Active Member
Well, the vacation's over - back to work.
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Idun:
Who popularised the "victory" sign (two fingers up)?
Winston Churchill.
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TimmyEatCrisps:
The lifetime of the triplet excited state of pyrene is 145 microseconds. Under identical experimental conditions, the triplet lifetime of perdeuterated pyrene is found to be 340 microseconds. Knowing that the C-H stretching vibration frequency is located at 3015 cm^-1, and assuming the Englman-Jortner exponential energy-gap law to be valid, estimate the frequency of the corresponding C-D stretch. Explain your reasoning.
Yeah. Uh huh. Sure.
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Squeegee:
If man evolved from monkeys and apes, why do we still have monkeys and apes?
This surprisingly common argument reflects several levels of ignorance about evolution. The first mistake is that evolution does not teach that humans descended from monkeys; it states that both have a common ancestor.
We didn't evolve from any existing monkey. Humans and monkeys share a common ancestral species, which was different from any existing human or monkey species, and which is now extinct. (For that matter, humans and everything else alive on this planet share common ancestors, not just monkeys.)
The theory of evolution does not say that every single individual of a population is changed identically into the same new species (i.e., one species replacing the other). Often, some small subgroup of the overall population experiences a greater change than the rest of the population. Therefore, you have the original (A) plus the new species (B) living simultaneously. Now those two species can go on down their own paths and can diverge further into even further species.
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It's good to be back!
NEXT!!
Cheers, Martin
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Idun:
Who popularised the "victory" sign (two fingers up)?
Winston Churchill.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
TimmyEatCrisps:
The lifetime of the triplet excited state of pyrene is 145 microseconds. Under identical experimental conditions, the triplet lifetime of perdeuterated pyrene is found to be 340 microseconds. Knowing that the C-H stretching vibration frequency is located at 3015 cm^-1, and assuming the Englman-Jortner exponential energy-gap law to be valid, estimate the frequency of the corresponding C-D stretch. Explain your reasoning.
Yeah. Uh huh. Sure.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Squeegee:
If man evolved from monkeys and apes, why do we still have monkeys and apes?
This surprisingly common argument reflects several levels of ignorance about evolution. The first mistake is that evolution does not teach that humans descended from monkeys; it states that both have a common ancestor.
We didn't evolve from any existing monkey. Humans and monkeys share a common ancestral species, which was different from any existing human or monkey species, and which is now extinct. (For that matter, humans and everything else alive on this planet share common ancestors, not just monkeys.)
The theory of evolution does not say that every single individual of a population is changed identically into the same new species (i.e., one species replacing the other). Often, some small subgroup of the overall population experiences a greater change than the rest of the population. Therefore, you have the original (A) plus the new species (B) living simultaneously. Now those two species can go on down their own paths and can diverge further into even further species.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
It's good to be back!
NEXT!!
Cheers, Martin
Martin
Active Member
Wabbit:
First off - if you wanted to find a signature-image more annoying than my neurotic little dog, you succeeded. Now get rid of it.
What are the origins of the terms hill billy and hick?
Hillbilly:
The origin of this American nickname for mountain folk in the Ozarks and in Appalachia comes from Ulster. Ulster-Scottish (The often incorrectly labeled “Scots-Irish”) settlers in the hill-country of Appalachia brought their traditional music with them to the new world, and many of their songs and ballads dealt with William, Prince of Orange, who defeated the Catholic King James II of the Stuart family at the Battle of the Boyne, Ireland in 1690.
Supporters of King William were known as “Orangemen” and "Billy Boys" and their North American counterparts were soon referred to as "hill-billies". It is interesting to note that a traditional song of the Glasgow Rangers football club today begins with the line, "Hurrah! Hurrah! We are the Billy Boys!" and shares its tune with the famous American Civil War song, "Marching Through Georgia".
Hick:
Formerly a hypocoristic form of Richard, which means, an unsophisticated country person; bumpkin; yokel. (That's honestly all I could find.)
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NEXT!
Cheers, Martin
First off - if you wanted to find a signature-image more annoying than my neurotic little dog, you succeeded. Now get rid of it.
What are the origins of the terms hill billy and hick?
Hillbilly:
The origin of this American nickname for mountain folk in the Ozarks and in Appalachia comes from Ulster. Ulster-Scottish (The often incorrectly labeled “Scots-Irish”) settlers in the hill-country of Appalachia brought their traditional music with them to the new world, and many of their songs and ballads dealt with William, Prince of Orange, who defeated the Catholic King James II of the Stuart family at the Battle of the Boyne, Ireland in 1690.
Supporters of King William were known as “Orangemen” and "Billy Boys" and their North American counterparts were soon referred to as "hill-billies". It is interesting to note that a traditional song of the Glasgow Rangers football club today begins with the line, "Hurrah! Hurrah! We are the Billy Boys!" and shares its tune with the famous American Civil War song, "Marching Through Georgia".
Hick:
Formerly a hypocoristic form of Richard, which means, an unsophisticated country person; bumpkin; yokel. (That's honestly all I could find.)
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NEXT!
Cheers, Martin
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