Elite Engineer

Senior Members
  • Content Count

  • Joined

  • Last visited

Community Reputation

28 Nice

1 Follower

About Elite Engineer

  • Rank
  • Birthday 11/05/1992

Profile Information

  • Location
  • Interests
    philosophy, music, science.
  • College Major/Degree
    BS in Biotechnology,
  • Favorite Area of Science
  • Biography
    should have gone to school for chemistry... :/
  • Occupation
    Protein Chemist

Recent Profile Visitors

14484 profile views
  1. Elite Engineer

    Collagen gel for felt stiffening

    My wife is trying to stiffen felt using a gelatinous collagen mixture for hat making (millinery). In the procedure, she makes a collagen gel (using lyophilized collagen and and hot water) and then lets it solidify in the fridge. After 24 hours of cooling and solidification, she heats the gel so it becomes liquid, and then applies the collagen solution to the felt. The felt is then molded into a shape, dries, and retains it's shape as the collagen solution dries. We're working on different concentrations to optimize rigidity on the fabric. My question: Would enzymatically breaking down the collagen (i.e. meat tenderizer) allow us to use less gel per area of fabric? I read some protocols on researchgate regarding hydrogel and people mentioned that breaking down the collagen resulted in stiffer gels. My thought is, if we breakdown the collagen it would result in increased rigidity while requiring less gel? I ask because when we apply too much collagen solution to the fabric, it leaves a white-ish sheen. It's similar to placing a drop on glue on the material and then wiping it off, leaving a "spread out-appearance" of white residue. Your thoughts? ~ee
  2. Elite Engineer

    I've awoken from my slumber

    Hey thanks for the greeting! I guess I just got caught up in the jumbled inner workings of the "9-5". When I was in college I had all the time in the world to scroll, read and post on here. I'm glad to be back though. As far as an update, I'm sad to admit I left my research job for a higher pay (and benefits) non-science job. I could you use this place now more than ever.
  3. Is the cost of producing biofuel (or really any alternative fuel in this argument) really that much greater than fracking/digging up fossil fuel? Correct me if I'm wrong but the big sink in in alternative fuels is the production of the fuel. You don't get more energy out of it then it costs to make it. So you're breaking even or making a little profit.Whereas with fossil fuels, the "assembly" of crude oil molecules has already been done for us by the plant and animal decomposition under heat & pressure for millions of years. All we have to do is frack/dig it up. Looking at the size and operation of oil rigs and fracking companies, you'd think it would cost much more to obtain the crude oil. Your thoughts on this? ~EE
  4. Elite Engineer

    I've awoken from my slumber

    Hey all, it's been a while since I was on here. Thinking I'll start posting again. ~ee
  5. Using it mostly for smell for the house, I really enjoy the smell of mint. No I haven' done a small scale trial run. I only have 1500 ml of 40% etoh to which I'm not sure if I should distill or not. I don't really want to distill a small amount just for a small scale experiment
  6. I'm not sure which would be better. I ask because I'm worried using 90% etoh will have an overpowering smell on the final solution. Also, 40% may not be as effective as 90%. Thoughts? ~ee
  7. So, if you build a latrine...just a hole in the ground and add excrement to it, it smells, harbors pathogens and doesnt really get converted into anything. Compost toilets on the other hand, have little to no smell, has no pathogenic bacteria and the waste is converted into compost. I was wondering if compost toilets work as opposed to latrines because when you add extra carbon materials (i.e sawdust) and oxygen it allows for growth of thermophilic bacteria. Thermophilic bacteria raise the temp of the waste and kill off the pathogenic species. So in this case, are compost toilets akin to where the desired bacteria are selected via conditions of the environment? ~EE
  8. Sorry, i meant uranium-235, and I found my answer: The fission of one atom of uranium-235 generates 202.5 MeV = 3.24E−11 J, which translates to 83.14 TJ/kg. This is around 2.5 million times more than the energy released from burning coal. https://en.m.wikipedia.org/wiki/Uranium-235#Fission
  9. I know 1 atom of uranium-238 isn't critical mass, but theoretically, if you could split 1 atom of uranium-238, how much energy would be produced? ~ee
  10. If you haven't heard, an American Southwest flight, 737 was flying from Newark to Dallas. The plane's left engine (?) blew up/malfunctioned. The pilot (former Navy fighter pilot) was able to land the plane. My question is how was the plane able to stay in the air as long as it did, and descend, turn, and land with only one engine? ~ee
  11. I'd respond if I knew how to answer it.
  12. I'm a little confused by this. You mean "call it" while it's still spinning and the face of the coin hasn't been revealed? So was Schrodinger saying, "No, photons can't exist in two different states (wave and particle) at the same time...that's just as ridiculous as a cat being both dead and alive at the same time"..and poof it became history. Did Schrodinger ever agree with the CI?
  13. So, did Schrodinger create his analogy as an attack on quantum superposition, or was it an aide to help the laymen understand superposition on a macroscopic level? In short, did he agree or not?
  14. I just recently found out that Schrodinger made his thought experiment as a criticism of wave function collapse, and tried to illustrate how absurd it was by saying a cat is both dead and alive simultaneously until observed. So when people try to explain uncertainty of something with Schrodinger's Cat, are they using the incorrect analogy to describe the moment of uncertainty? ~ee
  15. I'd say just males for this, but the female gives birth to the progeny so it applies for both. Male perspective: Ideally, if a male has a high rate of acquiring mates, that's a good thing. More probability of spreading his genetics around a population, he's desirable, most fit in the selection/ competitive aspects. But what changes when a portion of the population of females (~30%) is infected with a transmissible disease that would adversely effect the males sexual performance, such as herpes, HIV, gonorrhea, etc. How would his fitness be effected, the number of females he interacts with etc. Female perspective: Pretty much the same question for the female, but in addition, if the female acquires a disease that will directly effect the progeny (HIV, herpes) does that eliminate her from the evolutionary timeline in terms of ability to produce progeny, and maintain her fitness? ~EE