masklinn
masklinn t1_j32iffy wrote
Reply to comment by --_pancakes_-- in Where does all of the snot come from when you have a cold? by Dunkachin0
We're getting outside of my meagre knowledge so hopefully a 'doc or other biology-inclined specialist will swing by. I know that in e.g. the lungs it's the only way to evacuate junk (e.g. dead viruses and immune cells), but for the nose I don't know if it's functional or if it's just a side-effect of the inflammation of the mucosa which is not deadly enough to get weeded out by natural selection.
masklinn t1_j328cyx wrote
> or do you have like a secret mucus receptical that just decides to empty into your sinuses?
Mucus is a compound built from a small amount of specific proteins (mucins) and a lot of water.
So "all the snot" mostly comes from the water in your body, the gelling agent can be produced in pretty small quantities by mucous membranes, specifically the nasal mucosa, and even more specifically the goblet cells of the nasal mucosa. The nasal mucosa produces small quantities of mucin on a permanent basis (like other mucous membranes) in order to protect itself, trap debris, and move things along, but when you suffer from an infection of the nose one of its (possible) reaction is to ramp up mucin production, leading to significant amounts of mucus.
Hagfishes are a good way to demonstrate how fast and how much mucus can be produced as they use it as a defense mecanism (their body is lined with mucin glands, and when threatened they start releasing it in the environment, which is water): https://www.youtube.com/watch?v=t5PGZRxhAyU
An other (maybe somewhat less gross) example is making jellies (as in gelatin desserts not fruit preserves). "Standard firmness" for gelatin products is apparently 1/4 ounces (30g) gelatin to 2 cups (472mL = 472g) water. That's a 15:1 ratio of water to gelatin by mass[0], and that sets hard, it's not runny like mucus is.
[0]: note that "ready" flavoured gelatins (e.g. your jello) will have a much lower ratio, because the powder contains sugar and flavorants, not just gelatin
masklinn t1_j2w64sk wrote
Reply to comment by MrHollandsOpium in Rwanda report: France ‘complicit’ in 1994 genocide | Human Rights News by Character-Rabbit-127
That sounds a lot like WWII sites which were left as-is for remembrance.
masklinn t1_j0trht5 wrote
Reply to comment by sadness_elemental in Ancient Grammatical Puzzle That Has Baffled Scientists for 2,500 Years Solved by Cambridge University Student by Superb_Boss289
> They assumed it meant earlier rules had precedence over later rules
Other way around, within a priority level the later rule overrides the earlier (is the historical interpretation).
masklinn t1_j9jbe8b wrote
Reply to comment by terst_ in What to read after Harry Potter? by Potices
And both authors have openly hateful politics so that’s an other point in common.