How do rockets burn fuel in space if there isnt oxygen in space? |
- How do rockets burn fuel in space if there isnt oxygen in space?
- A question about Coulomb Force and its equivalence in real life ?
- Why are atoms always arranged the way they are, with protons and neutrons at the center and electrons orbiting?
- How does cell-free DNA get analyzed?
- Is there a limit to how high a person can fly a kite?
- Is Kingdom Protista already considered obsolete?
- Is it possible to completely cure a person of HIV infection if they know about it from Day 1?
- What would have been on the land when “life” first crawled out of the water?
- Are yellow ladybugs ladybugs? Is it a mutation? Or are they a different kind of bug?
- Do all plasmas behave the same way? Does a reaction to a magnetic field or something similar depend on an element's electronic structure?
- How has the ability to treat HIV/AIDS progressed since the 1980s/90s when it was considered a death sentence?
- How high could you go strapped to only balloons?
- What is the 'false positive' rate of coronavirus tests? Is this causing the stall of decline of cases in the UK, or is there another reason we are stuck at 5-6k per day?
- Do people with autism have an easier or harder time communicating in sign languages, compared to spoken languages?
- What is it about grapefruit juice, specifically, that's problematic for many kinds of medications?
- Does mucosal immunity intersect with systemic immunity?
- How does the mRNA from the Covid vaccines get incorporated into our cells and subsequently read?
- What is the current estimate of the R0 (Basic Reproduction value) for the B117 'Kent' strain of Coronavirus first detected in England?
- If an into i9 is basically and i3 with more cores (given they are from the same generation) then how are they both the same size physically??
| How do rockets burn fuel in space if there isnt oxygen in space? Posted: 23 Mar 2021 06:28 AM PDT |
| A question about Coulomb Force and its equivalence in real life ? Posted: 23 Mar 2021 02:49 AM PDT So i was solving a question " Two 1 Coulomb charges are placed 1 km apart the force on them will be " Answer was 9000 Newton . Now when we life weight of ground suppose 100 kg it takes Mg newton that is 980 Newtons . My question is why we cannot see that 9000 Newtons force around us and why it doesnt affects us plus i am sure there are hell lot of charges around 1 km distance [link] [comments]  |
| Posted: 23 Mar 2021 04:49 AM PDT Was just thinking that I've never seen a diagram with an orbital neutron inside the electron cloud, or an electron-neutron cloud being orbited by protons. They seem intuitively like they should at least be possible, if not common. I'm aware that antimatter is inverted, but my understanding is that it's made from inverted particles as well, and those are also always in the same arrangement. [link] [comments]  |
| How does cell-free DNA get analyzed? Posted: 22 Mar 2021 06:27 PM PDT In my work, I am often ordering screening tests for fetal chromosomal issues. One technique is through analysis of cell-free placental DNA. Different companies will push their version of the test which is usually based on 1 of 3 methods: counting, SNP-based and whole genome sequencing. I understand the general concepts but have been unable to find information on the details so I am wondering if anyone here has a good explanation. For example, I've read that the cfDNA fragments are 150-200 base pairs in length. How do they take these fragments and extrapolate the data obtained to a chromosomal and genomic level? I have trouble conceptualizing how the puzzle is put together. The information we get from the big genome guys tend to be vague referring to "next-generation sequencing" and "bioinformatics". Thanks! [link] [comments]  |
| Is there a limit to how high a person can fly a kite? Posted: 22 Mar 2021 09:47 AM PDT As the string gets longer, the weight of the kite increases. But also there tends to be more wind higher up. A larger kite would lift more string, but at some point a single person wouldn't be able to hold a very large kite in high winds. So, is there a limit to how high a person can fly a kite? [link] [comments]  |
| Is Kingdom Protista already considered obsolete? Posted: 22 Mar 2021 05:38 PM PDT Many textbooks still use this kingdom, but many internet sources no longer use this but rather the supergroup classifications. Is it safe to assume that Kingdom Protista is no longer valid? And I'm also curious when this change occured? [link] [comments]  |
| Is it possible to completely cure a person of HIV infection if they know about it from Day 1? Posted: 23 Mar 2021 06:49 AM PDT Say a lab technician, while handling blood specimens, gets exposed to HIV. The particular sample tests positive for HIV (when tested on the same day). Now the technician knows he/she probably has HIV in their system. So can the person be completely cured? [link] [comments]  |
| What would have been on the land when “life” first crawled out of the water? Posted: 22 Mar 2021 09:34 AM PDT |
| Are yellow ladybugs ladybugs? Is it a mutation? Or are they a different kind of bug? Posted: 22 Mar 2021 02:50 PM PDT |
| Posted: 22 Mar 2021 02:47 PM PDT Recently I've been looking into nuclear fusion and was wondering if the properties of the plasmas generated were specific to hydrogen/lithium/etc. What affects how a plasma responds to an electric or magnetic field? The mass of the nuclei? the charge of the nuclei? [link] [comments]  |
| Posted: 22 Mar 2021 10:02 AM PDT So I've just finished watching the brilliant and heartbreaking 5 part series "It's A Sin" by Russell T Davies, which is about the way the HIV/AIDS pandemic affected the LGBT community in the UK. Apparently, there were plans for a sixth episode, which would have flashed forward to the modern day and highlighted advancements in care for HIV and AIDS. Since that episode never got funded however, I'm curious then to learn what medical advancements we have made in terms of being able to treat those conditions, like any new drugs or Therapies? I know that the mortality rate is apparently way lower compared to what it was. Do we have a cure, or are we close to getting one? Thanks in advance! [link] [comments]  |
| How high could you go strapped to only balloons? Posted: 23 Mar 2021 12:42 AM PDT |
| Posted: 22 Mar 2021 11:18 PM PDT |
| Posted: 22 Mar 2021 11:42 AM PDT Many people with autism struggle (more than their neurotypical peers) to interpret facial expressions and body language. Facial expressions/body language is important for communication, but are especially critical for sign language. Do people with autism have more trouble or less trouble with communicating in sign language? Does it depend on where on the spectrum they are, or does it not make a difference? [link] [comments]  |
| What is it about grapefruit juice, specifically, that's problematic for many kinds of medications? Posted: 22 Mar 2021 09:14 AM PDT Many drugs include a warning not to drink alcohol with them — and many, many things contain alcohol. But right behind alcohol, it seems, is grapefruit juice. This seems unusually specific. How specific are these kinds of problematic drug interactions to grapefruit juice? Or are there lots of other kinds of fruit or food that provoke similar interactions, but it's just that grapefruit juice is the most common? What substances or compounds are responsible for grapefruit juice's problematic interactions with medication that aren't present elsewhere in our diets? [link] [comments]  |
| Does mucosal immunity intersect with systemic immunity? Posted: 22 Mar 2021 08:34 PM PDT One of the ongoing issues with COVID vaccination is that vaccines injected into the blood will give systemic immunity but may not give mucosal immunity, so it's still possible to harbor virus in the mucosal linings and potentially spread it while vaccinated. Since the systemic and mucosal immune systems necessarily have some very different and specialized roles due to their very different operating environments, the reason for their seperation is understandable. But how much does the systemic immune system "inform" the mucosal immune system, and vice versa? Are they really two very seperate, distinct things ie. Antibodies and memory cells created in one will not exist in the other? [link] [comments]  |
| How does the mRNA from the Covid vaccines get incorporated into our cells and subsequently read? Posted: 22 Mar 2021 02:07 PM PDT As a biology major I feel stupid asking this question, but I don't see why or how a cell would take in mRNA from its external environment [link] [comments]  |
| Posted: 22 Mar 2021 10:43 AM PDT In December 2020 a new more infectious variant of the Coronavirus was determined to be a Variant of Concern (VoC) by UK health authorities on account of a reported 43–90% increase in the basic reproduction rate of this strain over the original Coronavirus variant (R 2.6 to 3 - various sources) Where are we now with understanding what the basic range and mid point of the R0 value of B117 would have been were it to have encountered the global population back at the start of the pandemic. Also does the value of R2.6 still stand up for the original strain? As a qualifier. It is clearly the case that the measurement of R will vary depending on local circumstances... E.g. a densely populated urban populous may encounter a higher R than the population average, even within the same country. Also R is likely to be affected by immunity gained through immunisation and the partial spread through the community of earlier strains. Can we filter through this to make a clear statement about what the base value of B117 and other strains are Vs the original strain? Edited for clarity. [link] [comments]  |
| Posted: 22 Mar 2021 01:02 PM PDT Sorry this is a slightly dumb question and MAY not even make sense... [link] [comments]  |
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