How long do the more passive bodily functions usually continue after a person dies? |
- How long do the more passive bodily functions usually continue after a person dies?
- How do some things get absorbed through lung gas exchange (Nicotine) but others don't? (Tar)
- How are UV bulbs made "low ozone"?
- Why is human fat yellow while beef/pork fat is white?
- Why don't we inject vaccines directly into lymph nodes?
- When laying a new undersea cable with a plow, how do they not accidentally dig up an old cable that needs to be crossed over?
- Could supermassive black holes form through star mergers?
- How does the body react to food after prolonged food deprivation. Will eating even a normal portion of food cause stomach aches or other adverse reactions?
- How does leprosy cause skin lesions?
- Do cold-blooded animals have body fat (subcutaneous fat)?
| How long do the more passive bodily functions usually continue after a person dies? Posted: 30 Jan 2022 07:19 AM PST So for example the enzymes in your stomach and intestines that digest food. I'm guessing that they don't need a constant supply of blood to keep doing what they're designed for, so if you somehow forced food into a recently deceased intestine would it still be broken down and digested? And does this just continue until the body lost enough temperature for the enzymes to denature? And in a more general sense, how long is it after the heart stops that all these enzymes stop working and the body is 'completely' dead? [link] [comments] |
| How do some things get absorbed through lung gas exchange (Nicotine) but others don't? (Tar) Posted: 30 Jan 2022 07:19 AM PST I'm essentially wondering how lung gas exchange works for substances other than air. Obviously anything besides air is going to be bad for the lungs but how? Does it leave a film like buildup? Is it permanent? How does vaping compare to regular air? [link] [comments] |
| How are UV bulbs made "low ozone"? Posted: 30 Jan 2022 07:43 AM PST I've purchased several fluorescent type UV bulbs that operate at 253 nm. A person may purchase two versions of the same bulb, regular and "low ozone" bulbs. If the bulbs are at the same frequency, how do the manufacturers decrease the ozone produced? Is there a standard for "low ozone"? or is it just what they feel like? [link] [comments] |
| Why is human fat yellow while beef/pork fat is white? Posted: 29 Jan 2022 07:20 PM PST Disclaimer: I'm colourblind, so please forgive me if animal fat is indeed yellow [link] [comments] |
| Why don't we inject vaccines directly into lymph nodes? Posted: 30 Jan 2022 09:32 AM PST 3 days ago I had my 2nd booster shot of COVID-19 vaccine. Soreness in my left arm came almost immediately at the site of injection. However it was only until a day later that I started burning a fever and feeling an uncomfortable swelling in my left armpit. True enough, I gathered that spike proteins produced through the vaccine were transported to the lymph nodes located in the armpit and the swelling is a merely a sign of WBCs being mass stimulated to fight the "infection". So... Should injecting the vaccine directly into lymph nodes help to speed up the process of activating WBCs and in turn be a more efficient way to obtain immunity? [link] [comments] |
| Posted: 29 Jan 2022 09:32 PM PST Here is an informative guide to undersea cable laying (Don't judge that it is quora). They mention that they bury the cables under the sea bed around a meter using a plow very similar to one on a farm. Looking at a cool interactive map of where cables are buried, they obviously criss cross at certain points. How does the plow avoid digging up other cables? [link] [comments] |
| Could supermassive black holes form through star mergers? Posted: 29 Jan 2022 08:07 PM PST I know the universe isn't old enough for supermassive black holes to have formed from collapsed stars. I've heard hypotheses about quasi-stars and collapsing gas clouds, but what about star mergers? I was just thinking, what if there was a gravitationally unstable star cluster which resulted in dozens or hundreds of massive stars colliding and merging? I know that's how some astronomers think really massive stars like R136A1 are formed. But what if enough stars merged to collapse their cores into a black hole, and then more and more kept colliding with the new black hole? Could that have been how some supermassive black holes got their start? Or would this not work? [link] [comments] |
| Posted: 29 Jan 2022 08:20 PM PST |
| How does leprosy cause skin lesions? Posted: 29 Jan 2022 03:21 PM PST Lots of sites will say "leprosy causes skin issues/lesions" but never talk about how exactly it does that lol. There's lots of information on how it invades peripheral nerves and leads to loss of sensitivity etc. but not much on lesion pathways. I'd assume that skin lesions result from an inflammatory immune response to M. leprae? Not too sure so any help would be appreciated. [link] [comments] |
| Do cold-blooded animals have body fat (subcutaneous fat)? Posted: 29 Jan 2022 07:28 PM PST |
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