Do we know of any cultures past or present without any form of religion or spirituality? |
- Do we know of any cultures past or present without any form of religion or spirituality?
- Do animals benefit from cooked food the same way we do?
- Why doesn't the flu (unlike Covid) continually get more transmissible over time?
- What is the technical difference (if any) between a hazmat suit and a contamination suit?
- Why do butterflies have such "bouncy" flight patterns compared to some other bugs?
- How do painkillers work on a cellular level?
- what does it mean that the king cobra is a "royal family" of four snake species?
- Is there any type of animal whose nervous system isn’t based on neurons?
- When doing clinical trails/other studies, does anyone think the type of people willing to volunteer can skew results?
- Whenever you look at any light source, lines or streaks protrude from them. Why is that?
- How do smoking cessation medications decrease withdrawal effects?
- Are there venomous snakes that don't kill?
- Do antihistamines build up and/or become more effective over time if you take medicine long-term?
- What happens to cells in microgravity?
- is it Known exactly which wolf/canine species modern dogs were bred fromand what region this occurred in?
- If born into a room with no colors, can we naturally imagine colors in our mind before we've experienced them?
- How recently did the corpus callosum, which humans have had for millennia, evolve to the point of connecting both hemispheres of the brain?
- When a dielectric is polarized due to an electric field does it get deformed?
- Are all spirits effectively the same after distillation?
- Do successive covid reinfections increase or decrease in severity?
- Can someone tell me the difference between an AESA and PESA radar?
- Why do sprouts produce so many antioxidants relative to the mature plant?
| Do we know of any cultures past or present without any form of religion or spirituality? Posted: 13 Mar 2022 11:02 AM PDT |
| Do animals benefit from cooked food the same way we do? Posted: 12 Mar 2022 08:13 AM PST Since eating cooked food is regarded as one of the important events that lead to us developing higher intelligence through better digestion and extraction of nutrients, does this effect also extend to other animals in any shape? [link] [comments] |
| Why doesn't the flu (unlike Covid) continually get more transmissible over time? Posted: 12 Mar 2022 05:54 PM PST Throughout the Covid-19 pandemic, we have repeatedly seen more transmissible variants emerge. As I understand it, this is evolutionarily almost inevitable: if a strain has a mutation that makes it more transmissible, it should generally outcompete less transmissible variants until it becomes dominant (exceptions being 1) if it is substantially more lethal such that it kills people before they can spread it, but this hasn't been a factor for Covid-19, and 2) if a variant is better able to overcome prior immunity, it may become dominant even if it doesn't have an inherent transmissibility advantage). This happened with Alpha, then Delta, the Omicron, etc. The implication seems to be that infectious diseases should have evolutionary pressures almost constantly pushing them towards greater infectiousness. However (to my understanding), the flu hasn't inevitably gotten more infectious over time. Instead, some seasons will have more infectious strains than others. Why is this? Thanks in advance, and my apologies if anything or any premise in this question is incorrect! [link] [comments] |
| What is the technical difference (if any) between a hazmat suit and a contamination suit? Posted: 13 Mar 2022 03:02 PM PDT |
| Why do butterflies have such "bouncy" flight patterns compared to some other bugs? Posted: 13 Mar 2022 07:19 AM PDT Went to the zoo this weekend and they had a butterfly garden where they just fly around you. There was also a bunch of insects in another section. Butterflies seem to bounce in their flight, compared to something like flies, termites, bees etc. [link] [comments] |
| How do painkillers work on a cellular level? Posted: 13 Mar 2022 07:03 AM PDT I am interested in how painkillers work to essentially kill pain. I take an advil, this gets dissolved by my saliva and stomach acids. The chemical(s) infused in the drug get transported in my bloodstream to all parts of my body. I assume then that this chemical (drug) binds to certain cells where the pain is emitted from. Is this only to nerve cells because that is where the pain signal is coming from correct? So this chemical (drug) will bind to nerve cells to block pain? What exactly is it binding to and for how long? Does this create changes within the cell simultaneously, for example would certain transcription factors be activated to yield the production of different proteins? So I guess I have a two part question: how does a drug (infused with a chemical) firstly accomplish its goal on a cellular level (in this case blocking pain), and by doing so does this affect the landscape of the intercellular environment - what does on inside the cell in anything when this chemical binds to the nerve cell to block pain. Thank you! [link] [comments] |
| what does it mean that the king cobra is a "royal family" of four snake species? Posted: 13 Mar 2022 06:04 AM PDT National Geographic posted an article saying that the king cobra is not a single species, but a royal lineage of four species, what does that even mean? Link: [link] [comments] |
| Is there any type of animal whose nervous system isn’t based on neurons? Posted: 12 Mar 2022 07:59 AM PST As I understand it, all nervous systems are based on neurons: axons, action potentials, synapses, etc.. Broadly similar in all animals. Is there an alternative to this model that works in different way and still works quickly? My first thought would be chemical messaging but that is essentially hormone regulation. That's not something you could "think" even in the most rudimentary sense. [link] [comments] |
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| Whenever you look at any light source, lines or streaks protrude from them. Why is that? Posted: 12 Mar 2022 07:21 AM PST |
| How do smoking cessation medications decrease withdrawal effects? Posted: 12 Mar 2022 07:13 PM PST I have looked into the mechanism of action for smoking cessation medications like Chantix and Bupropion. They are stated to be efficacious by binding to the α4β2 sub-type of the nicotinic receptor where it produces agonist activity, while simultaneously preventing nicotine binding to these receptors. The part that confuses me is how it decreases the withdrawal effects. If the medication is acting as an agonist to nicotine receptors to block the dopamine system stimulation provided by nicotine — wouldn't you still experience the same withdrawal by the lack of dopamine stimulation that you would experience by quitting without the help of cessation aids? Tl;Dr: Based on my understanding of the mechanism, it seems that medications would 'discourage' smoking as it would remove the dopamine stimulation that smoking would give you, but doesn't explain how it would decrease withdrawal effects. [link] [comments] |
| Are there venomous snakes that don't kill? Posted: 12 Mar 2022 10:31 PM PST Hey there! I am a writer, and currently i'm doing researches for a story which involves reptiles. I know there are venomous snakes and snakes that don't produce venom, but is there any snake species that is venomous, but which venom can't kill, just paralyze or something like that? [link] [comments] |
| Do antihistamines build up and/or become more effective over time if you take medicine long-term? Posted: 12 Mar 2022 07:59 PM PST I have seasonal allergies (runny nose, sneezing) and was telling a friend that no allergy medication seems to work for me. She said that I should try taking the medicine every day for an extended period of time to make it more effective. If the medicine had any effect on me I could see where she is coming from. The pills last 24 hrs and if you take one every 24 hours then you are always covered. But given that the medication doesn't have an effect in the first place, would continued usage really make a difference? I've tried a few different 2nd-generation anti-histamines (Zyrtec, Claritin) but none have perceptibly alleviated my symptoms within the first 24 hours of taking them. [link] [comments] |
| What happens to cells in microgravity? Posted: 12 Mar 2022 08:59 PM PST |
| Posted: 12 Mar 2022 12:04 PM PST |
| Posted: 12 Mar 2022 06:14 AM PST |
| Posted: 12 Mar 2022 10:01 PM PST |
| When a dielectric is polarized due to an electric field does it get deformed? Posted: 12 Mar 2022 04:05 PM PST I think the answer is yes. There is an equivalent bound surface and volume charge in the dielectric, therefore some forces exist locally. So this should also be the reason why some dielectrics will stick to your hair after rubbing? [link] [comments] |
| Are all spirits effectively the same after distillation? Posted: 12 Mar 2022 09:23 AM PST So as from the research I have done about this it seems that distillation works by heat a mix of fermented sugar, alcohol and water to a specific temperature that causes more of the alcoholto evaporate than the water. So when it is condensed again you have a liquid with more alcohol and less water. My question is doesn't this process remove almost all the flavour from what you are fermenting since only the water and alcohol are evaporating? And if so, why do certain spirits need to be made from certain fermentations like rum from molasses? I suspect that some of the other compounds are also brought across in distillation but I cannot find a source for this. [link] [comments] |
| Do successive covid reinfections increase or decrease in severity? Posted: 11 Mar 2022 05:09 PM PST Will they eventually wear-down a person's immune system or prime it to better handle it? eta... [link] [comments] |
| Can someone tell me the difference between an AESA and PESA radar? Posted: 12 Mar 2022 06:15 AM PST This has been really confusing me. I have a very basic idea of how PESA radars work, but it's extremely difficult for me to understand how both kinds of radar are different. [link] [comments] |
| Why do sprouts produce so many antioxidants relative to the mature plant? Posted: 12 Mar 2022 09:41 AM PST |
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