Recent comments in /f/askscience
[deleted] t1_j4zbiwa wrote
urzu_seven t1_j4zbfhs wrote
Reply to comment by Durable_me in Whats stopping us from sending a probe into a black hole if we haven't already? by stealth941
It will eventually enter the event horizon even from an outside perspective. If it didn't literally EVERY object ever would appear to be hovering just outside the event horizon. The reason this doesn't occur is because the event horizon isn't a fixed point, it expands as things fall in.
urzu_seven t1_j4zbbyc wrote
Reply to comment by liquid_at in Whats stopping us from sending a probe into a black hole if we haven't already? by stealth941
FYI the difference in "." and "," isn't a Europe/US difference. The UK also uses the decimal point "." as do most English speaking countries along with former British colonies such as India and Pakistan. Additionally Most of East Asia also uses the decimal point, including China, Japan, the Philippines, Thailand, and Malaysia. Indonesia and Vietnam are the exceptions in that region. Most of Central America and the Caribbean does too, with Cuba and the Dominican Republic being exceptions (plus a few of the smaller islands and overseas territories of European countries).
Additionally, due largely to English's influence on their development, most major computer languages use the decimal point (and don't use thousand's separators at all). Some computers and programs CAN handle input as text that uses the decimal comma, but its not universal.
Long story short though, in English you're better off using the decimal point to avoid confusion.
OrbitalPete t1_j4zaxl3 wrote
Reply to Is there any model or method to calculate how groundwater distributes spatially? by EggLemon3000
Hydrogeology and hydrology are the fields you're looking at here. It's not as straightforward as you might imagine.
So yes there are models, but they are of varying precision in different settings, and dependent on the quality of your subsurface knowledge.
SWithnell t1_j4zawjh wrote
Reply to Is there any difference in efficacy when a vaccine is administered somewhere other than the upper arm (e.g. on the foot)? by MercurioLeCher
Vaccines are usually delivered via the intramuscular route. It's all about how the vaccine is taken up by the body. Training focusses on the upper arm and thigh, though the upper arm is by far the most convenient. There are other benefits - there are comparatively few nerves in the upper arm muscle, which is why people often feel very little. Those that refute that, well you just got unlucky and the vaccinator hit a nerve. If the vaccinator hits the bone (usually a lack of muscle tissue) you would not know.
The exception is some people (eg young children) may have vaccines delivered through the nose as a spray or drops. This is also linked to efficacy of delivery.
There are always exceptions, but delivering a vaccine other than the intramuscular route would not be a licenced use of the product. So yes, there are legal reasons too!
L0cked4fun t1_j4zal5q wrote
Reply to comment by firstfrontiers in Is there any difference in efficacy when a vaccine is administered somewhere other than the upper arm (e.g. on the foot)? by MercurioLeCher
Gonna hop on the top comment early to let people know not to let them jab your shoulder. I am taller than the person giving me my flu shot and it resulted in a weird angle that lead to them piercing my rotator cuff. Ended up with 2 months of rehab before the pain subsided.
I realized they cleaned a place high on my arm, but no one ever warns people to make sure it's in the deltoid* and not higher. Edit: wrong muscle
seanmorris t1_j4zaifl wrote
Reply to comment by firstfrontiers in Is there any difference in efficacy when a vaccine is administered somewhere other than the upper arm (e.g. on the foot)? by MercurioLeCher
>Any large muscle group will do
This is not always true, even if it applies to covid vaxes. Muscles vary greatly in their receptor expression.
GalFisk OP t1_j4za39o wrote
Reply to comment by DaylightsStories in What does the ricin molecule do in the castor bean? by GalFisk
Thanks. I'm curious as to how it did evolve, and what it was before it became such a deadly toxin. But all research i can find has gone into what it does to humans and animals.
urzu_seven t1_j4za0xs wrote
Reply to comment by Weed_O_Whirler in Whats stopping us from sending a probe into a black hole if we haven't already? by stealth941
>Alpha Proxima
You mean Alpha Centauri, the triple star system made of up of Alpha Centauri A (aka Rigil Kentaurus ), B (aka Toliman), and C (aka Proxima Centauri). There is no "Alpha Proxima"
[deleted] t1_j4z9fs7 wrote
Reply to comment by [deleted] in Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology by AutoModerator
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[deleted] t1_j4z8j32 wrote
moralprolapse t1_j4z8bi1 wrote
Reply to comment by mfb- in Whats stopping us from sending a probe into a black hole if we haven't already? by stealth941
Thanks for that!
[deleted] t1_j4z81k1 wrote
Reply to Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology by AutoModerator
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Montre_Lalonde t1_j4z7x7d wrote
Reply to Whats stopping us from sending a probe into a black hole if we haven't already? by stealth941
How about the distance (and time to reach) to the nearest black hole? Plus the fact the information from the probe cannot escape the event horizon of a black hole, and the stresses of entering a black hole will rip it apart. Just a few reasons to start.
gwmccull t1_j4z7shg wrote
Reply to comment by MercurioLeCher in Is there any difference in efficacy when a vaccine is administered somewhere other than the upper arm (e.g. on the foot)? by MercurioLeCher
BCG is not given intramuscularly, it is given intradermaly. From what I remember, an intradermal injection is given by inserting the needle into the first few layers of skin and then the injection is made in a pocket within the skin. Sometimes I think they will even insert the needle and then lift it to help form the pocket
If BCG is given subcutaneously (below the skin) then it can be dangerous to the patient
So it makes sense then that BCG could be given on the foot since it’s within the skin and not the muscle
[deleted] t1_j4z79y8 wrote
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[deleted] t1_j4z6lhi wrote
Reply to comment by kappusha in How many times mRNA transcript can be translated before it's degraded or something like that? by kappusha
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walmartart OP t1_j4z6cml wrote
Reply to comment by Andis-x in Do Turbo Engines have more cylinder pressure than NA engines? by walmartart
great response, thank you
walmartart OP t1_j4z6b4x wrote
Reply to comment by Yen1969 in Do Turbo Engines have more cylinder pressure than NA engines? by walmartart
Very informative response, thank you for your time and anecdotes
asskickingactivity t1_j4z6at7 wrote
Reply to Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology by AutoModerator
What are the conditions like in the spaces between organs inside our bodies? Are they anaerobic?
Mymyl12 t1_j4z5ckt wrote
Reply to Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology by AutoModerator
From my understanding, smell comes from gaseous molecules... So, if given enough time, could you theoretically consumme an object entirely by smelling it?
Another way of framing it would be, would an object in the right conditions decompose into gaseous molecules?
[deleted] t1_j4z4s1b wrote
Reply to comment by reeeeeeeeeee78 in Biologically speaking, what makes men typically stronger than women? by Erratic_Noman
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deadcommand t1_j4z4aeh wrote
Reply to Given that reproduction is difficult or impossible when both animals have different numbers of chromosomes, how did so many species evolve to have so many different numbers of them? by MercurioLeCher
So this hits the pitfall many fall into of thinking evolution is a thing you choose. It’s not. Mutations, most of random, happen and the ones that are useful in some way, or at least not actively detrimental, get passed on.
The reality is that science still doesn’t really have good answers when it comes to how a species’ chromosome is divided up. Hell, there’s a lot about our own genetics that we still don’t understand. For example, introns are something of a mystery. We know what they are, we know what happens with them. But why? Still not sure.
So the answer to your question basically comes down to “we’re not entirely sure.”
Not satisfying, I know, but that’s science. The more you know, the more you realize you don’t know.
AltAcc4545 t1_j4zbp72 wrote
Reply to comment by smolpp12345 in Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology by AutoModerator
Probably not, given that it’s a neurodevelopmental disorder so you’re born with it.
Hopefully there is though.