How was covid in 2003 stopped? |
- How was covid in 2003 stopped?
- Many people seem to instinctively fear spiders, snakes, centipedes, and other 'creepy-crawlies'. Is this fear a survival mechanism hardwired into our DNA like fearing heights and the dark, or does it come from somewhere else?
- If arrows spun, would it improve their flight stability in the same way as spinning bullets?
- What is the Origin of the Negative Phase of a Shockwave?
- How does quantum tunneling work?
- When a cloud of gas gravitationally collapsed to form our Solar System, how wasn't that a violation of the second law of thermodynamic?
- Theory of relativity universe cannot be divided as quantum mechanics suggests is this correct?
- How come some moon phases can be seen during the daylight and some can only be seen at darkness?
- How do archeologists know if damage to a skeleton occurred during life or after death?
- Can allergies be hereditary?
- How do accents develop?
- Are there any animals whose diets change significantly during pregnancy/reproductive cycle?
- If Class Reptilia is paraphyletic, why do we still recognize it as valid taxon?
- What makes a drug chemo?
- What makes a computer virus so distinctively different from normal computer programs that anti-virus software is able to detect them?
- Can Ultrasound imaging be used to scan for ligament/tendon injuries in foot?
| How was covid in 2003 stopped? Posted: 11 Nov 2021 03:46 PM PST |
| Posted: 12 Nov 2021 05:15 AM PST Not sure whether to put this in anthropology or psychology, but here goes: I remember seeing some write-up somewhere that described something called 'primal fears'. It said that while many fears are products of personal and social experience, there's a handful of fears that all humans are (usually) born with due to evolutionary reasons. Roughly speaking, these were:
and rounding off the list were the aforementioned creepy-crawlies. Most of these make a lot of sense - heights, disease, darkness, etc. are things that most animals are exposed to all the time. What I was fascinated by was the idea that our ancestors had enough negative experience with snakes, spiders, and similar creatures to be instinctively off-put by them. I started to think about it even more, and I realized that there are lots of things that have similar physical traits to the creepy-crawlies that are nonetheless NOT as feared by people. For example:
So, what gives? Is all of the above just habituated fear response, or is it something deeper and more primal? Would love any clarity on this. [link] [comments] |
| If arrows spun, would it improve their flight stability in the same way as spinning bullets? Posted: 11 Nov 2021 03:15 AM PST |
| What is the Origin of the Negative Phase of a Shockwave? Posted: 11 Nov 2021 04:52 PM PST The pressure-time characteristic of a blast wave has a positive phase followed by a negative phase. What is the cause for this negative phase? I thought it may be conservation of mass accounting for the increased density of the overpressured air, but I haven't found any solid answers. [link] [comments] |
| How does quantum tunneling work? Posted: 11 Nov 2021 07:43 AM PST i mean, a particule can go throught matter because, it´s going too fast, or it can travel trought the gasp in our cells?.i mean, in that way why arent we change by this objects. like. Hows a particule can go so fast that can traverse you without been notice.Ex:- you can feel photons (light) but you can´t feel neutrons so..... [link] [comments] |
| Posted: 12 Nov 2021 03:31 AM PST According to Wikipedia, the Solar System was a giant cloud, then parts of it collapsed due to gravity, and this formed the star and the planets. But how does that make sense thermodynamically? A uniform cloud of gas is pretty much the highest entropy you can have. The same matter cleanly delineated into separate bodies with vastly different properties, including non-uniform temperature (the Sun is much hotter than Pluto) -- isn't that strictly less entropy? How come gravity gets us from high entropy to low entropy with no additional energy put into the system? [link] [comments] |
| Theory of relativity universe cannot be divided as quantum mechanics suggests is this correct? Posted: 12 Nov 2021 05:27 AM PST I been learning a little about quantum mechanics which my understanding about it is near to zero besides the basics I've learned watching some youtube videos. This video link below David Bohm at the start of the video says according to Theory of relativity the universe cannot be divided while my little understanding of quantum mechanics says the particles divide between different universes. Can someone explain is what Bhom says correct? are the two Theory of relativity vs quantum mechanics in disagreement? Discussion starts at 1:55 [link] [comments] |
| How come some moon phases can be seen during the daylight and some can only be seen at darkness? Posted: 12 Nov 2021 08:06 AM PST |
| How do archeologists know if damage to a skeleton occurred during life or after death? Posted: 11 Nov 2021 01:33 PM PST What got me thinking about it is I have a small chip in one of my canine teeth, but how would an archeologist in the future know that that damage occurred during my life vs getting chipped at some point during or after a burial considering enamel doesn't grow back? [link] [comments] |
| Posted: 11 Nov 2021 12:18 PM PST |
| Posted: 11 Nov 2021 06:16 AM PST I'm trying to understand how accents develop. For example, why do people from Australia, New Zealand, Canada, and the US all have different accents when certain regions in those countries were populated by people immigrating from the same region in the UK? (I.e. the west coast of Scotland.) [link] [comments] |
| Are there any animals whose diets change significantly during pregnancy/reproductive cycle? Posted: 11 Nov 2021 12:28 PM PST Obviously when growing an entire organism(s) within oneself more nutrients have to be consumed, but are there any animals that have a more dramatic change in their diet? For instance, switching from a primarily herbivorous diet to one that includes meat or other animal products, or vice versa. I tried looking it up but only found sources for what to eat or feed pets during pregnancy. [link] [comments] |
| If Class Reptilia is paraphyletic, why do we still recognize it as valid taxon? Posted: 11 Nov 2021 08:35 AM PST So my question is based on my understanding of phylogenetic clusters. Taxons should always be monophyletic, as polyphyletic and paraphyletic groups are problematic. Now according to a lot of trees, Class Reptilia is paraphyletic. If it is indeed invalid, why do we still teach it as if it is valid? Also follow up question where does the arbitrariness of a clustering regulated? Do we have like IUPAC (in chemistry) for systematics and taxonomy? Because I really don't get how scientists decide whether a taxon is phylum, class, order , etc. [link] [comments] |
| Posted: 10 Nov 2021 10:42 PM PST So, I am aware that many drugs for autoimmune diseases (ie Chrons, Rheumatoid Arthritis use Methotrexate) are the same drugs used in cancer treatment but at lower dosages. At doses used for autoimmune diseases, Consumer Medical Information, and websites such as the support agencies for the diseases, explicitly state that the drug is not chemo. So what is the definition of chemo, and what triggers that definition for the same drug but different dosage. [link] [comments] |
| Posted: 10 Nov 2021 02:40 PM PST |
| Can Ultrasound imaging be used to scan for ligament/tendon injuries in foot? Posted: 10 Nov 2021 04:11 PM PST Or elbows. Why do we need MRI's if Ultrasound is cheaper? [link] [comments] |
| You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment