- I have two questions. How do paleontologists determine what dinosaurs looked like by examining only the bones? Also, how accurate are the scientific illustrations? Are they accurate, or just estimations of what the dinosaurs may have looked like?
- How do those old-timey underwater naval mines even work?
- Was there another Coronavirus around November? Myself and a lot of people I know we're hit with the worst flu I've ever had by a mile. Symptoms were very similar to Covid19, but a few months too early. I wondered what it was as it occasionally comes up in conversations
- In fluids, why do larger bubbles rise faster than smaller ones?
- Is it all possible for one to see the filament structure of the universe?
- Why don't ocean waves travel at the speed of sound in water?
- If the universe is only 13.7 billion years old and 1 light year is how long light travels in a year, how have we seen objects farther then 13.7 billion light years away?
- Could nuclear weapons reserves' uranium be used in nowadays fision reactors?
- If magnetic monopoles were abundant, would they interact with atoms like electrons do?
- When I plug the end of a straw and pull it out of a liquid, what force is holding the liquid in the straw to counteract the force of gravity?
- How can we have mapped the human genome, when everybody has (at least somewhat) different genes?
- How come the pole of Saturn looks/is hexogonal?
- If SARS-CoV-2 enters the body with its spike protein through the ACE2 receptor, then wouldn't any mutation to the virus still conserve this protein, as it is essential for the virus to enter human cells and grow? Or could it evolve a completely different mechanism of entry?
- Are there viruses that didn't originate in animals?
- When we are sick and some mucus falls down our lungs, it usually disappear some days after recovery. How does it get out?
- How explosive is Fulminating Gold relative to black powder?
- Does a hollow object containing a vacuum float on water?
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- How does a lightning create heat?
- After being weakened, do EM waves stronger than visible light eventually fall into the visible light spectrum?
- Why are rocket performing better with lighter exhaust gas?
| Posted: 03 Jun 2020 04:28 PM PDT |
| How do those old-timey underwater naval mines even work? Posted: 03 Jun 2020 12:45 PM PDT How do those old-timey underwater naval mines even work? I understand that the mines detonate when a ship bumps into them, but how did the mines resist corrosion and still function? Why were probes placed under the mine even though the ships were likely to travel above the mine? [link] [comments]  |
| Posted: 04 Jun 2020 04:08 AM PDT I got it in Malta as a conference with many Asian attendees. Many of the people I met there became sick shortly after returning home, so the outbreak would quickly have become international. It was in the UK, Canada, Ukraine, Germany, France, etc. It comes up occasionally still because the symptoms were so similar, and I often meet people who are a little confused that they had something similar before Covid19 arrived in their country. Given how infectious it was i imagine the medical community knows about it and I'm curious what it was [link] [comments]  |
| In fluids, why do larger bubbles rise faster than smaller ones? Posted: 03 Jun 2020 08:16 PM PDT |
| Is it all possible for one to see the filament structure of the universe? Posted: 03 Jun 2020 10:01 PM PDT I keep seeing pictures like this around and I'm wondering if it would really be possible at all for anyone to see this structure (or parts of if) in real life. I would assume not, but I would really like to know. My apologies if this is a dumb question at all [link] [comments]  |
| Why don't ocean waves travel at the speed of sound in water? Posted: 04 Jun 2020 07:23 AM PDT This random thought struck me today and i couldn't figure it out. If pressure moves through a material at its specific speed of sound, why do ocean waves travel so much slower? [link] [comments]  |
| Posted: 03 Jun 2020 05:37 PM PDT I have heard that the entire observable universe is 90 billion light years across. How do we know this if objects in the universe only had 13.7 billion years to send light to us? [link] [comments]  |
| Could nuclear weapons reserves' uranium be used in nowadays fision reactors? Posted: 04 Jun 2020 06:16 AM PDT So that's the question, could highly enriched uranium from nuclear weapons reserves be used in the fision reactors that we have on our countries. And why? [link] [comments]  |
| If magnetic monopoles were abundant, would they interact with atoms like electrons do? Posted: 04 Jun 2020 05:57 AM PDT Basically just curious how or whether a magnetic monopole might form stable "bonds" with the components of an atom, presuming they exist and we're abundant. [link] [comments]  |
| Posted: 03 Jun 2020 05:42 PM PDT |
| How can we have mapped the human genome, when everybody has (at least somewhat) different genes? Posted: 04 Jun 2020 03:57 AM PDT |
| How come the pole of Saturn looks/is hexogonal? Posted: 03 Jun 2020 12:36 PM PDT English is not my first language. Im sorry for any mistakes in f.i. grammar. So I checked out this very cool picture of Saturn: https://www.reddit.com/r/interestingasfuck/comments/gvxcla/the_clearest_image_ever_taken_of_saturn/?utm_medium=android_app&utm_source=share and the pole looks hexagonal. Can Someone explain why this is? [link] [comments]  |
| Posted: 03 Jun 2020 11:10 AM PDT I don't know much about viruses and what/how/why they mutate, just wondering. Also, if the spike protein would be conserved, would we even need a new vaccine for it if it mutated? Thank you for any info! [link] [comments]  |
| Are there viruses that didn't originate in animals? Posted: 03 Jun 2020 02:05 PM PDT Are there any viruses that affect humans that started in humans? Or did they all start in animals and then transfer to humans? If that's the case, then why so? [link] [comments]  |
| Posted: 03 Jun 2020 06:44 AM PDT |
| How explosive is Fulminating Gold relative to black powder? Posted: 03 Jun 2020 09:26 PM PDT I recently learned about Fulminating Gold, and that it was the first high explosive humanity ever discovered. I know now that high explosive refers to the type rather than the strength, but how much energy is released from an explosion of Fulminating Gold versus one of black powder? [link] [comments]  |
| Does a hollow object containing a vacuum float on water? Posted: 03 Jun 2020 07:37 PM PDT |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 03 Jun 2020 08:08 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| How does a lightning create heat? Posted: 03 Jun 2020 08:00 AM PDT So one evening I was watching this storm and then I wondered how the nature can wield such a force. When I looked it up I found out about it but this one thing is "in the dark" for me. I know that thunder is created by expansion of the heated air but why does it heat up in the first place? Are the electrons colliding with the atoms in the air or is it something completely different? Thanks in advance. [link] [comments]  |
| Posted: 03 Jun 2020 04:50 PM PDT For example, when there's heavy cloud coverage does the UV light lose enough energy when coming in contact with the thicker clouds and drop down to visible light? Is this possible and if so, does it happen on Earth? [link] [comments]  |
| Why are rocket performing better with lighter exhaust gas? Posted: 03 Jun 2020 04:55 AM PDT Hi all, I started watching lots of rockets related video following the Dragon Crew launch. Something I heard in several video and seem counter intuitive to me is that lighter exhaust gas has better performance. I was thinking with Newton's 3rd law this would be the opposite, for example If I'm in a vacuum and throw a bowling ball I'll move further than if I throw a feather. What am I missing? [link] [comments]  |
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