Recent comments in /f/askscience
[deleted] t1_j3169fn wrote
Reply to comment by [deleted] in What are the physical limits of stamping optical media like blu-ray discs? by ChronoX5
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[deleted] t1_j3167oa wrote
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Ausoge t1_j312jgd wrote
Reply to comment by abalawadhi in How does dish soap eliminate bacteria? by [deleted]
Honestly, I don't know - evolution is capable of producing some pretty incredible results - but I doubt it. It would require cells to either use something other than lipids to form their outer membrane, or to reinforce the layer to the point that the attractive molecular forces cannot break it. Such an adaptation would so fundamentally change the way cells currently operate, that any drift in that direction would probably be incompatible with life.
A suitable analogy might be to ask if vertebrates could evolve to be totally immune to fire. Like yeah, maybe, but the required physiological changes would be totally incompatible with life as we know it.
[deleted] OP t1_j312by5 wrote
Reply to comment by dysfunctionalbrat in How does dish soap eliminate bacteria? by [deleted]
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electric_ionland t1_j311y0b wrote
Reply to comment by by251536 in How is stereo information encoded into a vinyl record? by caedin8
On top of what /u/Prestigious_Carpet29 said it also ensures back compatibility with mono systems.
[deleted] t1_j311i5w wrote
Reply to comment by [deleted] in How do galaxies move? by modsarebrainstems
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menooby OP t1_j310rml wrote
Reply to comment by SimShade in Do all humans have the same antigens? Or are the antigens in the body the same for everybody? by menooby
Damn complexity. Thank you for the information, exactly what I'm looking for for but wasn't what I expected.
SimShade t1_j310e3x wrote
Reply to comment by menooby in Do all humans have the same antigens? Or are the antigens in the body the same for everybody? by menooby
Yes, humans have highly similar self-antigens, but there is still some variation between individuals. This is why autoantibody tests are not always completely accurate and may require further testing to confirm a diagnosis.
Epitopes are the specific parts of an antigen that are recognized by the immune system, and they can be either unique or shared between different antigens. In the case of self-antigens, the epitopes are typically highly conserved, meaning that they are similar among individuals. However, there can still be some variation in the epitopes, which can affect the immune system's ability to recognize self-antigens and may contribute to the development of autoimmune disorders.
[deleted] OP t1_j310bf1 wrote
Reply to How does dish soap eliminate bacteria? by [deleted]
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abalawadhi t1_j310b80 wrote
Reply to comment by Ausoge in How does dish soap eliminate bacteria? by [deleted]
Can't the Bacteria evolve to prevent this?
menooby OP t1_j30zzh7 wrote
Reply to comment by SimShade in Do all humans have the same antigens? Or are the antigens in the body the same for everybody? by menooby
If that's the case then at least do we have highly similar self antigens? Otherwise how would autoantibody tests work, there must be common ones. Or am I missing more of the picture? Are epitopes unqiue as well? I assume so if antigens are
graebot t1_j30yk7p wrote
Reply to comment by Triairius in Molecularly, what make pine pitch sticky? by orangegore
If there's no atmosphere, then there's no pressure to press things together. Suction cups, for instance, do not work in a vacuum. They require atmospheric pressure to press the cup to the surface. If part of tar's stickiness comes from the suction effect in an atmosphere, then at least some of that "stickiness" must disappear
SimShade t1_j30yc3g wrote
Reply to comment by menooby in Do all humans have the same antigens? Or are the antigens in the body the same for everybody? by menooby
No, we do not all have the same self-antigens. Self-antigens are proteins or other molecules that are present on the surface of our cells and are recognized as being "self" by the immune system. These self-antigens are typically unique to an individual and are used by the immune system to distinguish the body's own cells from foreign cells.
Self-antigens can include proteins such as major histocompatibility complex (MHC) molecules, which are present on the surface of almost all cells and play a critical role in the immune system's ability to recognize and attack foreign invaders. MHC molecules are highly variable and are thought to have evolved to provide a diverse range of self-antigens that can be recognized by the immune system.
In addition to MHC molecules, other self-antigens may include proteins and molecules on the surface of cells, such as cell surface receptors and enzymes. These self-antigens are also unique to an individual and help the immune system to recognize and distinguish the body's own cells from foreign cells.
roesingape t1_j30w4gb wrote
Reply to comment by fer_sure in How is stereo information encoded into a vinyl record? by caedin8
There's many. I was in the east coast noise scene in the aughts. Many artists recorded many things that either sounded exactly like destroyed speakers or destroyed speakers if turned up too loud or they'd record destroying speakers and destroy speakers playing that through speakers. Or sometimes just use already destroyed speakers to begin with just to get that sound.
Like all true art music, it was more fun to do than to hear.
EDIT: Spleling
Ausoge t1_j30w1ll wrote
Reply to comment by zzing in How does dish soap eliminate bacteria? by [deleted]
Well there ya go! Thanks
CrateDane t1_j30vjno wrote
Reply to comment by SignalDifficult5061 in How many times mRNA transcript can be translated before it's degraded or something like that? by kappusha
> > > > > How many proteins are made per transcript before degradation is also liable to be very different for reasons like, for example, codon usage (rarer codons tend to have smaller tRNA pools) so it will take longer to translate and thus there will be fewer proteins, and any number of other things.
On that note, codon optimality also influences the half-life of mRNAs.
[deleted] t1_j30v3vo wrote
Reply to comment by SignalDifficult5061 in How many times mRNA transcript can be translated before it's degraded or something like that? by kappusha
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[deleted] OP t1_j30uu9m wrote
Reply to comment by Ausoge in How does dish soap eliminate bacteria? by [deleted]
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roesingape t1_j30uswo wrote
Reply to comment by rrussell1995 in How does dish soap eliminate bacteria? by [deleted]
So I can wash my hands in ice cream? Does ice cream kill covid?
[deleted] OP t1_j30r501 wrote
Reply to How does dish soap eliminate bacteria? by [deleted]
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[deleted] OP t1_j30q5v3 wrote
Reply to comment by SubstantialExtent819 in How does dish soap eliminate bacteria? by [deleted]
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[deleted] t1_j30p4iy wrote
NL_MGX t1_j30o17b wrote
Reply to comment by fer_sure in How is stereo information encoded into a vinyl record? by caedin8
I recall having a record where the bass is so heavy you can see the groove wiggling and you need to be careful not to spin the record too fast or the needle would jump out...
[deleted] t1_j318wn3 wrote
Reply to comment by fer_sure in How is stereo information encoded into a vinyl record? by caedin8
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