Posts by 70wksfyrs

37

Abiogenesis - moving on from the Urey Miller Experiment

by cantleave in

abiogenesis is the field of study whereby the answers to how the chemistry of life was initiated are explored.

unlike evolution, which is described and understood via a number of falsifiable models which explain the observations made in the natural world, most models of abiogenesis will remain unfalsifiable and hence open to debate.

the issue being of course that the conditions under which those first chemical reactions occurred no longer exist and trying to recreate an approximation of these in the lab requires a great deal patience, ingenuity and of course some intelligent guess work!

70wksfyrs

Hey phizzy - I am glad you were kind about my creationist reponse. Thank you for making me feel welcome on this thread

70wks....

37

Abiogenesis - moving on from the Urey Miller Experiment

by cantleave in

abiogenesis is the field of study whereby the answers to how the chemistry of life was initiated are explored.

unlike evolution, which is described and understood via a number of falsifiable models which explain the observations made in the natural world, most models of abiogenesis will remain unfalsifiable and hence open to debate.

the issue being of course that the conditions under which those first chemical reactions occurred no longer exist and trying to recreate an approximation of these in the lab requires a great deal patience, ingenuity and of course some intelligent guess work!

70wksfyrs

25 years ago when I was studying ICP-MS was the very cutting edge of analysis.

Hmmmm I was wondering how you got two degrees in four years. Ahhaa, you went to uni as a JW. Love to hear that story, thats probably why elder suckup didn't like you as he was dumb and you were educated.

37

Abiogenesis - moving on from the Urey Miller Experiment

by cantleave in

abiogenesis is the field of study whereby the answers to how the chemistry of life was initiated are explored.

unlike evolution, which is described and understood via a number of falsifiable models which explain the observations made in the natural world, most models of abiogenesis will remain unfalsifiable and hence open to debate.

the issue being of course that the conditions under which those first chemical reactions occurred no longer exist and trying to recreate an approximation of these in the lab requires a great deal patience, ingenuity and of course some intelligent guess work!

70wksfyrs

I am sorry to say like a lot of biochemistry I downloaded this stuff into my short term memory for the inevitable exam question and then promptly forgot it!

hahahaha!!!! lol!!!!

I was the same with physical chemistry, my teacher was a nutty professor. I just learnt shrodingers wave equation and regurgitated it in the exam. At least you remembered was a positron is (another thread). Phys chem was a headache for me.

37

Abiogenesis - moving on from the Urey Miller Experiment

by cantleave in

abiogenesis is the field of study whereby the answers to how the chemistry of life was initiated are explored.

unlike evolution, which is described and understood via a number of falsifiable models which explain the observations made in the natural world, most models of abiogenesis will remain unfalsifiable and hence open to debate.

the issue being of course that the conditions under which those first chemical reactions occurred no longer exist and trying to recreate an approximation of these in the lab requires a great deal patience, ingenuity and of course some intelligent guess work!

70wksfyrs

Hey cofty,

Thanks for your concern. I wrote three big posts on this thread, so my day did get better. I love chemistry, its sets a fire in me, thankfully my kids both love science too, but my daughter is better at physics.

cantleave-I look forward to your next thread about part two of the experiment. I cannot read the papers, way over my head I am afraid

37

Abiogenesis - moving on from the Urey Miller Experiment

by cantleave in

abiogenesis is the field of study whereby the answers to how the chemistry of life was initiated are explored.

unlike evolution, which is described and understood via a number of falsifiable models which explain the observations made in the natural world, most models of abiogenesis will remain unfalsifiable and hence open to debate.

the issue being of course that the conditions under which those first chemical reactions occurred no longer exist and trying to recreate an approximation of these in the lab requires a great deal patience, ingenuity and of course some intelligent guess work!

70wksfyrs

cantleave-thanks very much for addressing those points I made very interesting, and it's all coming back to me. I have never heard of chiral chomatography, sounds mind blowing.

I have used a TIMS (thermal ionisation mass spec) ICP-MS (inductively coupled plasm mass spec) to separate uranium isomers, and the general common chromatography instruments like HPLC ans GC (high pressure liquid chromatography) and (gas chromatography).

By the way, I saw you responded two days ago but my computer seems to be playing up and I am just reading your post now

18

will they install credit card readers for the agm?

by hoser in

more speculation, why not?.

will they install credit card readers so the faithful, but cashless, can contribute?.

hoser.

70wksfyrs

Credit card donantions are part of the nu-lite. Listen obey and be blessed (LOABB). When there are pictures of paper donations in the washtowel, all publishers sing the tune in their head of LOABB.

When they donate they feel warm and fuzzy they are being obedient. What a load of LOABB I say

8

My Favorite Scriptures When I'm Fearful

by Perry in

isaiah 41:13 esvfor i, the lord your god, hold your right hand; it is i who say to you, fear not, i am the one who helps you.. .

proverbs 3:5-6 esv trust in the lord with all your heart, and do not lean on your own understanding.

in all your ways acknowledge him, and he will make straight your paths.. .

70wksfyrs

Hi Perry,

Thanks for the scriptures, and this thread. Many brothers and sisters have made comments to me over the years such as.

"Yeah I know the Bible says God cares"

"Why doesn't Jehovah answer my prayers?"

"I am doing everything the bible says, and doing my best to apply the good moral standards of the bible, but I don't seem to be getting anywhere"

As a JW I used to try and encourage them and confirm that Jehovah really does care about them, and he can see all their trials. I told them that Jehovah understands them better than I do. If I can see their frustration and dispair, then how much more so can Jehovah.

Perry I have a question for you.

You have been posting here for 8 years, but you only post in a limited way and don't get involved with athiests talking about science. As I haven't been able to see, you have probably answered this question in other posts years ago, but please repeat yourself on my account.

Why do you believe what you do after so many years?

Thanks for your thread Perry

70wks...

37

Abiogenesis - moving on from the Urey Miller Experiment

by cantleave in

abiogenesis is the field of study whereby the answers to how the chemistry of life was initiated are explored.

unlike evolution, which is described and understood via a number of falsifiable models which explain the observations made in the natural world, most models of abiogenesis will remain unfalsifiable and hence open to debate.

the issue being of course that the conditions under which those first chemical reactions occurred no longer exist and trying to recreate an approximation of these in the lab requires a great deal patience, ingenuity and of course some intelligent guess work!

70wksfyrs

Hey boys on this thread,

I am assuming you are all men due to my experience, so please refresh me if I am wrong. Now I can ignore the second part of this thread, but because cofty was so wonderfully humble, and this is a JW site, and you saw my whining thread, lets talk about CREATION. We are after all on a JW website!

I am probably the only girl here, and my ex is a pig so I don’t like men much and I can generalise from time to time. You boys have been great though. I am not ready yet to disclose what I believe. Cantleave already knows, so please keep this confidential if you remember. Maybe that’s given the game away but I am admitting to nothing just yet. Plausible deniability!!!!!!

In my view and the circles of people I have had personal experience with, scientists, chemistry mainly do not identify themselves as creationists and evolutionists. As a JW we have to preach 24/7 and I was a sucked in company girl, loved the GB very much. So I talked about God a lot, I found the majority of atheist scientists shut me down, because there were just not interested in talking about God or creation. I found that believers were so, because of background mainly not really because chemistry proved them right. One guy actually gave me a bible.

The only people that tried to prove me wrong with science, were atheists on the mino, students especially. They fell flat on their face when they started getting dogmatic, I got my knowledge out. I must also say I didn't use my knowledge with all atheists on the doors, as I was a good JW and wanted to win them over and not humiliate them.

As to what I believe now that I am Df'd, and leading a double life (cos I am still in) that is for a new thread.

So boys be kind, I have responded a little to the creationist part of the thread. I am after all a weaker vessel, and I was upset this morning. So please be kind.

70wks......

37

Abiogenesis - moving on from the Urey Miller Experiment

by cantleave in

abiogenesis is the field of study whereby the answers to how the chemistry of life was initiated are explored.

unlike evolution, which is described and understood via a number of falsifiable models which explain the observations made in the natural world, most models of abiogenesis will remain unfalsifiable and hence open to debate.

the issue being of course that the conditions under which those first chemical reactions occurred no longer exist and trying to recreate an approximation of these in the lab requires a great deal patience, ingenuity and of course some intelligent guess work!

70wksfyrs

cofty- wow your humility is refreshing. I really respect that you asked that question in the public domain. Kudos to you. It depends at which stage of education you are as to the terms used. Chemistry is a linier subject. I tend to use terms from all levels when I discuss chemistry. The term that pop's into my head.

Sorry I am poor a writing in a coherent and understandable manner, thankfully cantleave is a better writer than me.

You also asked

"20 left-handed ones are found in organic proteins?"

Yeah that is kind of right. Personally I would term it something like this

In nature about 20% of D-enantiomers are found in amino acids.

First of all, there are no hard and fast exact numbers it’s different in every case and secondly, the D-enantiomer is actually the right handed amino acid, and yes they are found in proteins. As cantleave said in synthesised sugars (glycerides) it’s 50/50 they are also organic.

Thanks again for putting the whole question on the board, I am sure cantleave will back me up on this one, you could have sent him a PM, but you let us all see what your question was.

37

Abiogenesis - moving on from the Urey Miller Experiment

by cantleave in

abiogenesis is the field of study whereby the answers to how the chemistry of life was initiated are explored.

unlike evolution, which is described and understood via a number of falsifiable models which explain the observations made in the natural world, most models of abiogenesis will remain unfalsifiable and hence open to debate.

the issue being of course that the conditions under which those first chemical reactions occurred no longer exist and trying to recreate an approximation of these in the lab requires a great deal patience, ingenuity and of course some intelligent guess work!

70wksfyrs

Hey so my theory was close to Martin and Russell. Martin and Russell’s hypothesis state that the formation of the correct enantiomers starts at the RNA stage. This is cutting edge chemistry. I love it.

I wonder if their theory doesn’t pan out, they may in the future try the synthesis at the amino acid stereoisomer stage.

Cantleave - it was my understanding that it actually is possible to synthesise chemicals in the lab at a smaller molecular level in organic stereoisomers. I am sure I learned that the thalidomide drug was banned because in the 70's they did not separate them. They discovered the drug caused the deformities and then designed a new drug with the correct amount of L and D enantiomers.

It is my understanding that a racemic mixture occurs only with glycerides, but even with the racemic mixture they can be separated with polarisation techniques. But I have only measured polarity, never actually separated enantiomers. Hence I do not have any experience to draw on.

Please correct me if I am wrong, you are clearly more knowledgeable than I, so you may well teach me a thing or two. This is better than whining on my other thread.