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Oscar D. Grouch
Posted: Friday, April 21, 2017 12:00:43 PM

Rank: Advanced Member

Joined: 6/26/2014
Posts: 535
Neurons: 871,344
https://www.marchforscience.com/

"The March for Science champions robustly funded and publicly communicated science as a pillar of human freedom and prosperity. We unite as a diverse, nonpartisan group to call for science that upholds the common good and for political leaders and policy makers to enact evidence based policies in the public interest.

The March for Science is a celebration of science. It's not only about scientists and politicians; it is about the very real role that science plays in each of our lives and the need to respect and encourage research that gives us insight into the world.

Nevertheless, the march has generated a great deal of conversation around whether or not scientists should involve themselves in politics. In the face of an alarming trend toward discrediting scientific consensus and restricting scientific discovery, we might ask instead: can we afford not to speak out in its defense?

There is no Planet B. Join the #MarchForScience."

Oscar D. Grouch
Posted: Friday, April 21, 2017 12:23:20 PM

Rank: Advanced Member

Joined: 6/26/2014
Posts: 535
Neurons: 871,344
March for Science - Seattle, WA
April 22, 2017


https://www.marchforscienceseattle.org/

Gibbs gave us free energy.

ΔG = ΔH − TΔS

Don't let the tRumpians take it away!
taurine
Posted: Friday, April 21, 2017 2:43:39 PM

Rank: Advanced Member

Joined: 4/20/2016
Posts: 564
Neurons: 50,888
There is an opportunity for those who want to contribute to the human well-being. Anthropology of Religion eJournal supported by the AAA - American Anthropological Association society of anthropologists. It supports (literary) professional development. [I think that these who deserve might be satisfied, if their work is worth anything more than idle mention about]
Drag0nspeaker
Posted: Tuesday, April 25, 2017 8:06:19 AM

Rank: Advanced Member

Joined: 9/12/2011
Posts: 27,114
Neurons: 149,104
Location: Livingston, Scotland, United Kingdom
Oscar D. Grouch wrote:
Gibbs gave us free energy.
ΔG = ΔH − TΔS
Don't let the tRumpians take it away!

Come on - read your own referenced article!

Gibbs Free Energy is not "Free energy given by Gibbs" - it's very similar to Helmholtz Free Energy - it's just the greatest amount of mechanical work which can be obtained from a given quantity of a certain substance in a given initial state, without increasing its total volume or allowing heat to pass to or from external bodies, except such as at the close of the processes are left in their initial condition.

Burn some petrol in a closed environment and see how much energy you end up with after all the losses and random chemical things happen - very basically that's your "Gibbs Free Energy" - it was defined by Gibbs in the 1870s and hasn't changed since.
President Trump may be a lot of things, but he's not able to go back in time a century and a half to steal a scientific definition.


Wyrd bið ful aræd - bull!
Oscar D. Grouch
Posted: Tuesday, April 25, 2017 9:13:36 AM

Rank: Advanced Member

Joined: 6/26/2014
Posts: 535
Neurons: 871,344
Drag0nspeaker wrote:
Oscar D. Grouch wrote:
Gibbs gave us free energy.
ΔG = ΔH − TΔS
Don't let the tRumpians take it away!

Come on - read your own referenced article!


Oh, it was just a punnish play on words. I'm familiar with ΔG...

If ΔG < 0, then a reaction is spontaneous.
If ΔG = 0, then a reaction is at equilibrium.
If ΔG > 0, then a reaction is not spontaneous.

Reactions with positive enthalpy, +ΔH, can still be spontaneous if the increase in entropy, ΔS, is large enough.

If you're a biological entity, then ΔG = 0 is a bad state of affairs. Thermodynamic equilibrium is death.

Spontaneity doesn't equate to the kinetics of a reaction. For example, the oxidation of sucrose has a large negative ΔG, but a bowl of sugar sitting out on your kitchen table is fairly inert. Until, of course, you provide a catalyst such as some heat or H2SO4.

Drag0nspeaker wrote:
Trump may be a lot of things, but he's not able to go back in time a century and a half to steal a scientific definition.


Well, I think that my point was that's exactly what he wishes to do. He's dismantling the EPA. He's denying the anthropogenic influence on the environment in spite of the fact that humanity has been using the atmosphere as an open sewer for CO2 for over a century leading to ocean acidification and rising global temperatures. Scientists around the country are rushing to archive their data before it can be disappeared by the tRumpsters.

https://www.washingtonpost.com/news/energy-environment/wp/2016/12/13/scientists-are-frantically-copying-u-s-climate-data-fearing-it-might-vanish-under-trump/

A man who functions under the oxymoronic paradigm of truthful hyperbole cannot be trusted.
Drag0nspeaker
Posted: Tuesday, April 25, 2017 10:10:21 AM

Rank: Advanced Member

Joined: 9/12/2011
Posts: 27,114
Neurons: 149,104
Location: Livingston, Scotland, United Kingdom
Nah - Man can't have had SO much influence on the environment in the 3500 years since the universe was created . . .

Sorry - I just read the three lines and thought you were serious.

You played with sulphuric acid and sugar in school, too?


Wyrd bið ful aræd - bull!
Oscar D. Grouch
Posted: Tuesday, April 25, 2017 8:24:31 PM

Rank: Advanced Member

Joined: 6/26/2014
Posts: 535
Neurons: 871,344
Drag0nspeaker wrote:
You played with sulphuric acid and sugar in school, too?


What's more fun? Making a coin disappear perhaps. You just need a little citric acid and some hydrogen peroxide. HCl will work better though.
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