Why are certain things like knives/swords forged when they could may as well be cut and sharpened from a sheet of metal? |
- Why are certain things like knives/swords forged when they could may as well be cut and sharpened from a sheet of metal?
- When making cocktails, using pineapple, espresso or egg white creates a stable foam on the top of the drink. What causes this?
- When our vision is blurry, what happens inside of our eyes when we squint to “clarify” the images we see?
- How is a behavior passed down through generations?
- Why are certain SpaceX rockets "boattailed" at the front?
- How big is the earth compared to the universe vs a cell compared to the human body?
- If salt is a compound of sodium and chloride, how can there be different types and flavors of salts?
- What wavelength of color is reflected off of an object that looks black?
- Is the Oort Cloud unique to the Solar System or do other stellar systems also have Oort Clouds or their equivalent?
- Is electric potential energy equal to the gradient of the vector field of electric force?
- Is the angle between the two hydrogen atoms in a water molecule (or any molecule for that matter) by chance, or is it because that specific angle is preferred?
- Periodic Table of Elements, are there other manufactured elements?
- Does gravity affect electricity in any way?
- Because less there is pressure,harder it get to water to get solid,is it possible to have so little pressure that even at absolute zero the water don't become ice?
| Posted: 19 Oct 2018 12:03 PM PDT |
| Posted: 20 Oct 2018 05:47 AM PDT I realised I can't accurately explain it even though I've been using them for years. Is it the same thing? Soluble oils? Enzymes from the pineapple? Help. [link] [comments]  |
| Posted: 19 Oct 2018 07:52 PM PDT |
| How is a behavior passed down through generations? Posted: 20 Oct 2018 02:57 AM PDT My dog is a retriever, we never had to teach him to bring stuff back, he just does, unlike other types of dogs. How is this written in his genes, and how can he pass this to his pups? [link] [comments]  |
| Why are certain SpaceX rockets "boattailed" at the front? Posted: 20 Oct 2018 05:05 AM PDT I understand they have larger payloads that what would fit in a conventional rocket, but what are the aerodynamic properties of a ballooned front to that of a larger conventional rocket? Is it due to the weight added from making the rocket larger and completely smooth or are there benefits to this type of method? Ive done research into boattail rockets/ ammunition rounds and found that are beneficial but they dont have a full body after the nose convex to it. I have also modelled differant noses in Fluent (fluid CAD modeller program) and found additional benefits. Any help would be great! [link] [comments]  |
| How big is the earth compared to the universe vs a cell compared to the human body? Posted: 19 Oct 2018 06:23 PM PDT |
| If salt is a compound of sodium and chloride, how can there be different types and flavors of salts? Posted: 19 Oct 2018 11:17 PM PDT Of course, some salts are intentionally flavored, but if the ingredients are a direct chemical compound, how can they differ? Kosher salt, sea salt, etc. Are there other things in there? [link] [comments]  |
| What wavelength of color is reflected off of an object that looks black? Posted: 19 Oct 2018 01:32 PM PDT Visible light spans wavelengths of ~400nm - ~700nm with blue light and red light at each end, respectively, and the other colors somewhere inbetween, each with their own corresponding wavelengths. Black, to my understanding is the absence of light and color, yet I can look at black objects and see some detail in them, so clearly some light is being reflected. Is it just white light that is reflected but in smaller amounts making them appear black? [link] [comments]  |
| Posted: 19 Oct 2018 12:25 PM PDT |
| Is electric potential energy equal to the gradient of the vector field of electric force? Posted: 19 Oct 2018 05:23 PM PDT |
| Posted: 19 Oct 2018 04:48 PM PDT If so, what's the preferred reason and can they be forced to rearrange at different angles? [link] [comments]  |
| Periodic Table of Elements, are there other manufactured elements? Posted: 19 Oct 2018 04:13 PM PDT I was taught that the periodic table of elements is a table of all known elements; And I was also taught that elements where created by the fusion in the sun. I've been hearing about scientists creating fake stars in an attempt to make energy I think its a type of fusion or fission; Which got me thinking, is the periodic table still up to date? Are there more elements, and is it possible that bigger stars make more elements? What cool things could we expect? Sorry if this is the wrong flair, evidently I'm pretty bad at science! [link] [comments]  |
| Does gravity affect electricity in any way? Posted: 19 Oct 2018 04:25 AM PDT Gravity will pull the electricity down into the p... https://www.reddit.com/r/techsupportmacgyver/comments/9pfjdl/yes/e81wvh2?utm_source=reddit-android [link] [comments]  |
| Posted: 19 Oct 2018 12:12 PM PDT |
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