If I could very accurately measure the temperature increase of an object in a wind tunnel could I use that to calculate the drag? |
- If I could very accurately measure the temperature increase of an object in a wind tunnel could I use that to calculate the drag?
- How does bad weather obscure radar?
- What is the maximum speed of a liquid running through a tube?
- How do prion proteins actually cause a normal copy to misfold?
- What do antivirus scanners on your PC actually look for in a file?
- If a girl has an above average amount testosterone in her body, will she grow longer than girls with less testosterone?
- How different would the Earth be today if the Permian-Triassic extinction event did not occur?
- If the stratum corneum is dead and covered in bacteria, why doesn't it decay?
- What is the effect of length (Lorentz) contraction on the outer surface of a rotating sphere?
- Does sound sound different on other planets with different atmosphere densities?
- How were the very first computer languages/operating systems coded?
- Why do some people's bruises readily appear while others hardly show?
- What are the biological/pharmacological mechanics involved that cause tinnitus (ototoxicity) to occur after taking antibiotics i.e. vancomycin/cephalexin?
- Do light waves cast a shadow?
- How do nuclear power plants draw and convert energy for our use?
- When looking at pictures of Earth taken from space, why do you see only black and no stars?
- If there is no "absolute" velocity, how can we determine centripetal force?
- Why does excessive wing angle of attack (AoA) cause roll?
- Is there any particular reason that some planets rotate very fast on their axis, while others rotate slowly?
- Is there a liquid with the same density of our atmosphere at 1 atm? If so, would a glass full of it not experience refraction?
- How do microbes in the human body survive our immune systems?
- Can you charge your phone from a plant? Is this legit?
- Why does the carboniferous period have a mean surface temp equal or lower than today, when it had 2x the atmospheric CO2?
| Posted: 26 Apr 2016 01:46 PM PDT |
| How does bad weather obscure radar? Posted: 26 Apr 2016 11:41 PM PDT In my history textbook, it says that bad weather helped the Japanese fighter planes slip past radar on their way to Pearl Harbor. How does bad weather obscure radar? [link] [comments]  |
| What is the maximum speed of a liquid running through a tube? Posted: 27 Apr 2016 06:18 AM PDT |
| How do prion proteins actually cause a normal copy to misfold? Posted: 27 Apr 2016 06:27 AM PDT |
| What do antivirus scanners on your PC actually look for in a file? Posted: 26 Apr 2016 06:24 AM PDT Obviously they search for a virus but what attributes of a file gives away thats its a threat to the system? [link] [comments]  |
| Posted: 26 Apr 2016 12:46 PM PDT |
| How different would the Earth be today if the Permian-Triassic extinction event did not occur? Posted: 27 Apr 2016 02:22 AM PDT I know this is an oddly specific question, and I couldn't find anything using the search bar. I'm just curious how this would have effected Earth and biodiversity as a whole. [link] [comments]  |
| If the stratum corneum is dead and covered in bacteria, why doesn't it decay? Posted: 26 Apr 2016 11:56 PM PDT |
| What is the effect of length (Lorentz) contraction on the outer surface of a rotating sphere? Posted: 26 Apr 2016 12:41 PM PDT Assuming the surface's linear velocity is a significant fraction of c and is composed of one connected material at rest. What would be observed from different frames? A similar question could be asked of a 2D disk as well. [link] [comments]  |
| Does sound sound different on other planets with different atmosphere densities? Posted: 26 Apr 2016 10:02 AM PDT EDIT: Really intriguing and interesting answers. Thank you! [link] [comments]  |
| How were the very first computer languages/operating systems coded? Posted: 26 Apr 2016 10:21 AM PDT Without any basis with which to code such complex programs, did they have to write everything in binary? Machine code? [link] [comments]  |
| Why do some people's bruises readily appear while others hardly show? Posted: 26 Apr 2016 10:02 AM PDT If I hit my leg hard on a surface, I can feel a bruise, but it won't appear until a yellowish green surfaces a week later. My girlfriend, on the other hand, bruises like a peach. A light tap will bring a purple spot the surface in less than a day. How does this work? [link] [comments]  |
| Posted: 26 Apr 2016 10:24 AM PDT |
| Posted: 27 Apr 2016 04:54 AM PDT |
| How do nuclear power plants draw and convert energy for our use? Posted: 27 Apr 2016 04:04 AM PDT I was watching a documentary called Surviving Disaster: Chernobyl, and it made me curious as to how the energy is harnessed, converted for use and what causes it to melt down. Edit: Added text. Forgot to add: What does cause it to melt down the way Chernobyl did? [link] [comments]  |
| When looking at pictures of Earth taken from space, why do you see only black and no stars? Posted: 26 Apr 2016 11:55 AM PDT |
| If there is no "absolute" velocity, how can we determine centripetal force? Posted: 26 Apr 2016 01:01 PM PDT For instance, if I look up at a satellite in geostationary orbit, it appears to be standing still. But then, there would be no centrifugal force and it should come crashing down. But from other perspectives, the satellite DOES rotate at the right speed to stay in orbit. What causes that other perspective to be 'correct', whereas mine isn't? [link] [comments]  |
| Why does excessive wing angle of attack (AoA) cause roll? Posted: 26 Apr 2016 08:18 AM PDT I do not understand why exceeding AoA limits by pitch causes the aircraft to roll uncontrollably. Also what factors go into AoA limit/how can I reduce the effect with design? Edit: no flare for Aero?? edit, answer: asymmetric stall [link] [comments]  |
| Posted: 26 Apr 2016 07:57 AM PDT For example a day on Jupiter is around 10 hours, Earth is around 24 hours, while a Venus day is around 5,832. What effects the different speeds? [link] [comments]  |
| Posted: 26 Apr 2016 04:50 PM PDT |
| How do microbes in the human body survive our immune systems? Posted: 26 Apr 2016 08:25 AM PDT Is there a constant struggle between the non-human organisms and our immune systems or do they operate without issue? [link] [comments]  |
| Can you charge your phone from a plant? Is this legit? Posted: 26 Apr 2016 11:05 AM PDT http://www.bioo.tech/ This reminds me of the miniscuba system I saw on Reddit recently and it was pretty quickly debunked (though who knows if it is still attracting investors). Is this the same kind of "half-science" being used to defraud people again or can this really work? Found the rebreather device I was referring to. They have raised a ton of money for this thing! https://www.indiegogo.com/projects/world-s-first-artificial-gills-oxygen-respirator--2#/ [link] [comments]  |
| Posted: 26 Apr 2016 08:09 AM PDT The mean rise in surface temperature that's been cause for concern within the last 2-3 decades has been almost always attributed to the rise of atmospheric CO2. The Carboniferous period, a geologic era defined by it's large quantities of flora due to high CO2 density (800ppm to today's 400ppm), had a (theorized) mean surface temperature comparable to current temperatures. What other effects are contributing to the rise of global temperatures if not for CO2? Are other greenhouse gases a greater threat than discussed frequently? Do standard cycles of glaciation play a bigger part in the temperature variance (or lack there of)? [link] [comments]  |
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