How does it make sense to mix and match vaccines? |
- How does it make sense to mix and match vaccines?
- Does high-end hardware cost significantly more to make?
- What type of radiation does lead shielding stop?
- Given two complete sets of DNA belonging to father and son, is it possible to distinguish which set belongs to who?
- What’s the science behind japanese oil hardener product?
- What is the correlation between brain size and intelligence? Is it possible for a large-brained animal to be unintelligent or a small-brained animal to be highly intelligent?
- Why do low frequency wireless communications have a low bandwidth?
- Why don't bones decompose with the rest of a dead body? Why do we end up with skeletons and fossils after decomposition?
- Why does light reflect?
- When calculating gravity related questions on a cosmic scale, do we include a component for light in transit between galaxies?
- Do our immune systems less able to handle common influenza viruses after months of not dealing with them?
- When I am cutting a piece of pure iron, how deep does the cut go on the particle level? And how much energy is needed to break those bonds?
- What is the difference between Frequency Division Multiplexing and Time Division Multiplexing?
- How are helmets optimised for different sports?
- Could you see Saturns rings from titan?
| How does it make sense to mix and match vaccines? Posted: 20 Oct 2021 02:51 PM PDT I thought all the vaccines were different and some of them worked in very different ways. In that case, wouldn't mix and matching vaccines be less effective than getting two of the same? Would it even be more effective than just getting one? So, I'm seeing a few different things being said... One, Pfizer and Moderna are basically the same, Two, vaccines generally all have the same end goal anyway, Three, in theory it makes sense and the reason we weren't doing it in the first place is that all the tests were done with two of the same. [link] [comments]  |
| Does high-end hardware cost significantly more to make? Posted: 21 Oct 2021 05:04 AM PDT I work with HPCs which use CPUs with core counts significantly higher than consumer hardware. One of these systems uses AMD Zen2 7742s with 64 cores per CPU, which apparently has a recommended price of over $10k. On a per-core basis, this is substantially more than consumer CPUs, even high-end consumer CPUs. My question is, to what extent does this increased price reflect the manufacturing/R&D costs associated with fitting so many cores (and associated caches etc.) on one chip, versus just being markup for the high performance computing market? [link] [comments]  |
| What type of radiation does lead shielding stop? Posted: 21 Oct 2021 03:57 AM PDT As far as I'm aware there are only three types of ionising radiation - alpha, beta and gamma. Since alpha particles can be stopped by any sort of barrier, I'm most interested in beta and gamma radiation. Is lead shielding only able to stop one or both types? In addition, do different types of shielding perform differently against different types of radiation. e.g. Would Osmium or Iridium work better/worse? If I've made some glaring omission or have misunderstood something, please let me know. [link] [comments]  |
| Posted: 20 Oct 2021 08:27 PM PDT You are given two sets of DNA, and told that they belong to a father and son. You are not told which one belongs to the father and which one to the son. Apologies if this is a basic question, haven't taken genetics since high school. [link] [comments]  |
| What’s the science behind japanese oil hardener product? Posted: 21 Oct 2021 01:11 AM PDT I'm currently using a product from japan to dispose used oil properly. I am curious on the science behind it and have googled but i don't think it is a result of hydrogenation. I can't seem to find the ingredients of the japanese oil hardener in english so i can't really tell what made my used cooking oil solidified after putting in the powder. [link] [comments]  |
| Posted: 20 Oct 2021 08:05 PM PDT |
| Why do low frequency wireless communications have a low bandwidth? Posted: 21 Oct 2021 04:28 AM PDT I've been learning about submarines and how they use very low frequency and ultra low frequency waves on the electromagnetic spectrum to penetrate the water and communicate with submarines without them having to surface. The trouble is that the messages they receive can be received as slow as a few letters per minute. Why is it so slow? Why is the bandwidth of low frequency waves so low? [link] [comments]  |
| Posted: 20 Oct 2021 08:08 PM PDT |
| Posted: 20 Oct 2021 04:35 PM PDT What causes light to bounce off of objects, instead of simply passing through the space in the atoms/molecules? Would a perfectly flat object (as perfect an object made of atoms can get) reflect light in all directions or just an inverse of the direction it came from? edit: I think I bit off more than I can chew with this question [link] [comments]  |
| Posted: 20 Oct 2021 05:44 PM PDT I'm assuming we do, so how much influence is it having compared to dark and baryonic matter? [link] [comments]  |
| Posted: 21 Oct 2021 01:15 AM PDT There's a cold virus going round where I live, and the symptoms last for over a week, longer than I've ever seen. I was wondering if this is linked to the social distancing practises of lockdown, where our bodies haven't had to fight off common colds and viruses. Is that a thing? Or is this just random bad luck? [link] [comments]  |
| Posted: 20 Oct 2021 06:52 AM PDT |
| What is the difference between Frequency Division Multiplexing and Time Division Multiplexing? Posted: 20 Oct 2021 11:45 AM PDT |
| How are helmets optimised for different sports? Posted: 19 Oct 2021 11:15 PM PDT For example like the difference between cycling, skiing Rock climbing and say equestrian helmets why are they all different when they all provide the same function? What is the physics behind head collisions in different sports? [link] [comments]  |
| Could you see Saturns rings from titan? Posted: 19 Oct 2021 08:33 PM PDT It is my understanding that Saturns rings while viewed from an angle are very visible, but if you were on Titan which is orbiting in the same plane as the rings would you be able to see the rings or would they be too thin to be seen at such an angle? Thanks [link] [comments]  |
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