Mike Smith Cosmos Posted November 23, 2015 Share Posted November 23, 2015 (edited) Today I put some 'Pea and Ham soup' on the gas cooker , to warm for lunch. I went to sit down and go on the science forum for a few moments while the soup heated. When I returned to gather my ' Pea and Ham ' soup , it was burned , stuck , on the bottom of my shiny stainless steel pan. I poured the unburned soup. I tried to scape the stuck soup with a metal spoon. It would not budge . I scraped back and forward with a good deal of pressure. No! It was very well and truly immovable. I poured some cold water on top. I Tried to scrape , but to no avail. I enjoyed what was left of my soup , watched a few posts on science forum and returned to the pan . The burned on soup , FELL OFF , easily . What is going on ? 1 ) during the bonding process . A modest heat seemed to bond soup to stainless steel. ( like concrete ) Then water seemed to release the joint easily , floated up , with little effort. I am currently examining how sand ( which in a dry state, or for that matter being transported by a river , pours through you fingers when dry , and goes by unnoticed when wet, yet in a sediment state say as seen in cliffs , can bond into sedimentary rocks which can be reasonably 'stuck' or cemented together , when seen in the cliff side , Devonian sandstone . Yet seen again as beach sand , sometime later. Is there any correlation in the processes of my ' pea and ham soup ' in a stainless steel saucepan getting 'well and truly stuck on ' and sedimentary Devonian Sandstone rock , appearing ' well and truly bonded ' yet on the beach , pouring through your fingers , some time later ? Mike Edited November 23, 2015 by Mike Smith Cosmos Link to comment Share on other sites More sharing options...
swansont Posted November 23, 2015 Share Posted November 23, 2015 Just a guess, but the burning could have dehydrated the material in the contact area, and letting it soak rehydrated it. Link to comment Share on other sites More sharing options...
Mike Smith Cosmos Posted November 23, 2015 Author Share Posted November 23, 2015 (edited) Why should that cause such ON - OFF conditions . What does the initial heat do , or pressure do , one minute ? And What does the water do the next minute , That switches this powerful attraction ON and OFF ? It must switch on some form of attraction ( bonding ) one minute , and some form of switching off bonding the next? I am not a chemist , geologist, atomic scientist , or a lot of other things I am not . But I am an Observer! And I am curious ! Mike Ps. I get a sneaking feeling the word ' cementing or cementation' is hovering around in the ether somewhere! Edited November 23, 2015 by Mike Smith Cosmos Link to comment Share on other sites More sharing options...
Strange Posted November 23, 2015 Share Posted November 23, 2015 Just on the "heating soup" aspect, it is worth noting that thick liquids do not readily allow convection, which is why it can burn on the bottom but still be cold elsewhere. This can be quite dangerous, because you can get a build up of steam at the bottom, held in place by the thick, heavy liquid. Then, when you go to stir it, you release the bubble of gas and hot soup flies out at you. So you should always keep stirring such soups. Link to comment Share on other sites More sharing options...
Mike Smith Cosmos Posted November 23, 2015 Author Share Posted November 23, 2015 (edited) Just on the "heating soup" aspect, it is worth noting that thick liquids do not readily allow convection, which is why it can burn on the bottom but still be cold elsewhere. This can be quite dangerous, because you can get a build up of steam at the bottom, held in place by the thick, heavy liquid. Then, when you go to stir it, you release the bubble of gas and hot soup flies out at you. So you should always keep stirring such soups... Well then the interest and intrigue of reading Ophiolites replies to my geological / astronomical enquiry , is to blame, I guess ! In England , we have some folk law about King Arthur ( oops Alfred ) and burning the cakes ! On a geological map there appears to be a great outcrop of Devonian sandstone , just north of here , between Tiverton and Barnstable . I am going out to see if I can see something ? That's if I do not get caught up by " saccharification " Mike Ps I am on my way to the outcrop , I will catch you guys later ! Edited November 23, 2015 by Mike Smith Cosmos Link to comment Share on other sites More sharing options...
swansont Posted November 23, 2015 Share Posted November 23, 2015 Why should that cause such ON - OFF conditions . What does the initial heat do , or pressure do , one minute ? And What does the water do the next minute , That switches this powerful attraction ON and OFF ? It must switch on some form of attraction ( bonding ) one minute , and some form of switching off bonding the next? I am not a chemist , geologist, atomic scientist , or a lot of other things I am not . But I am an Observer! And I am curious ! Mike Ps. I get a sneaking feeling the word ' cementing or cementation' is hovering around in the ether somewhere! The word is probably hydrolysis https://en.wikipedia.org/wiki/Hydrolysis Link to comment Share on other sites More sharing options...
Endy0816 Posted November 23, 2015 Share Posted November 23, 2015 Food that sticks is caused by chemical bonds that form between the food and the material of the pan - almost always a metal. These bonds may be relatively weak van der Waals forces or covalent bonds. Protein-rich foods are particularly prone to sticking because the proteins can form complexes with metal atoms, such as iron, in the pan. http://www.scienceofcooking.com/why_food_sticks.htm Cementing generally revolves around Calcium(in some shape or fashion). Link to comment Share on other sites More sharing options...
Strange Posted November 23, 2015 Share Posted November 23, 2015 Well then the interest and intrigue of reading Ophiolites replies to my geological / astronomical enquiry , is to blame, I guess ! In England , we have some folk law about King Arthur and burning the cakes ! Alfred. Link to comment Share on other sites More sharing options...
Mike Smith Cosmos Posted November 23, 2015 Author Share Posted November 23, 2015 Alfred. . Oops . I am no good at history either . It began with A though ! Mike Link to comment Share on other sites More sharing options...
Strange Posted November 23, 2015 Share Posted November 23, 2015 (edited) Actually, it begins with Æ (ash) ! Edited November 23, 2015 by Strange Link to comment Share on other sites More sharing options...
Mike Smith Cosmos Posted November 23, 2015 Author Share Posted November 23, 2015 (edited) Actually, it begins with Æ (ash) !Yes but this is not helping my ' Sediment ' I looked at the geological map of the British Isles , and it showed a Devonian sandstone deposit , just North of here . Going from Tiverton in Devon ( 5 miles from where I live ) stretching toward Barnstable N. Devon . I drove up this afternoon and found a stately home built there , of Devon Sandstone. " Knight-shays built by the Heathcote Amery Famous Lace makers ( now owned by the national trust . ) The paths and ground was that Red Brown . I walked the dog in the grounds and sure enough there were chunks of Devonian Red Sandstone , just laying around . See pics . Now which of these processes took sand washing down from a river coming from North America then part of a super continent draining across England depositing sand in a great alluvial plane across , S. Wales , Devon and Cornwall , among other places. Deposited the Devononian Sand and took part in its sedimentation process. Current 4 pm Monday 23rd November :- Which process took wet sand into sedimentary Devonian Sandstone . ( second picture ) then used in building red stones in third picture ? Mike Edited November 23, 2015 by Mike Smith Cosmos Link to comment Share on other sites More sharing options...
swansont Posted November 23, 2015 Share Posted November 23, 2015 Unless you have been cooking sand, these are probably not closely related phenomena. Link to comment Share on other sites More sharing options...
Mike Smith Cosmos Posted November 23, 2015 Author Share Posted November 23, 2015 Unless you have been cooking sand, these are probably not closely related phenomena. Ok. I am just not quite sure what makes sedimentary red sand stick together? Is it pressure, time , heat , dehydration , or just the sand particles being held next to one another for so long a time period ( like 10's of millions of years) that the particles develop some form of atomic bonding , from a sheer , proximity perspective? Mike Link to comment Share on other sites More sharing options...
swansont Posted November 23, 2015 Share Posted November 23, 2015 Ok. I am just not quite sure what makes sedimentary red sand stick together? Is it pressure, time , heat , dehydration , or just the sand particles being held next to one another for so long a time period ( like 10's of millions of years) that the particles develop some form of atomic bonding , from a sheer , proximity perspective? Mike Then you can do what you're supposed to do and start a new thread to discuss it. Link to comment Share on other sites More sharing options...
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