Ishana92
Ishana92 t1_j2f2rd4 wrote
Reply to comment by Botars in 21 varieties of potatoes for sale at the farmers market by TuxedoFloorca
Mash potatoes from them just look sooo weird
Ishana92 t1_izp3wmh wrote
Reply to comment by Abdiel_Kavash in What is the difference between atomic, nuclear and hydrogen bombs? by something-stupid2134
It doesnt stop inside a human. It mostly passes through you the same as through a wall.The difference being that damage in a wall or armor is likely nothing worth writing about, while passing through living tissue neutrons break DNA and disrupt cells.
Ishana92 t1_iyvalhh wrote
Reply to comment by [deleted] in Why not use hydrogen and deuterium in fusion reaction rather than tritium and deuterium? by Curious_user4445
Can you explain why multiples of four matter here?
Ishana92 t1_iy0b9al wrote
Reply to TIL that many pro archers use surprise release mechanisms to prevent themselves from anticipating and reacting to the impending impact. by broogernavn
TIL that bows have triggers
Ishana92 t1_ixnjkrq wrote
Reply to comment by GreatBayTemple in If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy
If you had all that then you wouldn't need to freeze anything, just grow it from scratch. This is the basis of 3d organ printing.
Ishana92 t1_ixm2pue wrote
Reply to comment by _googlefanatic_ in If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy
Its because of complexity. Lets say you freeze a kidney then you thaw it and try to reassimilate it. Cells thst died will severely disrupt its function. In many cases replacing those cells is a slow and gradual process and not something that can be done quickly (whereas in cell culture you usually only have one cell type and they are functionally all the same).
Then you have the tissue and system response. Cells that die during freezing die messy. They burst and that releases toxins into your blood stream. Then immune cells come via blood and start inflammation which further damages the tissue. In the end you have a string of failures.
Ishana92 t1_ixm22tp wrote
Reply to comment by _googlefanatic_ in If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy
If you had time to repair all the damage it would be fine, probably. But those cells that died are releasing all sorts of messages to neighbouring cells. It's not just that they died and now there is a hole to fill, it's that now there is a hole and neighbouring cells are also freaking out and not doing their job. And then if you have living organism the immune response is going to kick in and just go crazy at site that is damaged. You get the whole cascade when cells are all dependent.
Ishana92 t1_ixlj0dr wrote
Reply to comment by _googlefanatic_ in If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy
You will lose some cells after thawing. The bigger the tissue, the larger the damage. And for tissue every bit of damage has an impact.
If you take cell culture, its basically asuspension of independent cells. You can lose 50% of them and the rest will repopulate everything. But if you lose 50% of cells in your tissue that tisdue is no longer functional and wont survive.
Ishana92 t1_iwzbgpm wrote
Reply to Origami titan beetle, designed by Shuki Kato and folded by me, folded from one uncut 50cm square of paper, 2022. by H3ISEN
So...are there free folding instructions for it?
Ishana92 t1_is5g0tw wrote
Reply to ‘Woman who can smell Parkinson’s’ helps scientists develop test, Scientists drew on 72-year-old Scot’s rare condition to help identify people with neurological condition by nimnlil
How does that work? What is she actually smelling/detecting? In other words how does she smell brain degeneration?
Ishana92 t1_jegrlge wrote
Reply to comment by dlige in ELI5: If benzodiazepines are CNS depressants, why is it so hard to die from a overdose of them alone? by psychrolute
So it's more like the dose that 50% of people can survive or dose that kills 50% of people