- Research is suggesting that hormones in the womb are a major factor in determining a person's sexuality. Has there been any research on whether the hormones and hormone analogs we use in modern industrial society are influencing this process?
- How do driverless cars detect and deal with ice and snow, especially when it comes to braking?
- If we shed layers of skin cells all the time, how come moles/skin tags dont shed as well?
- How does shape affect the strength of a spring?
- How is food poisoning tracked back to a common source?
- Do all forms of water (protium water, deuterium water etc.) lose density upon freezing? Or are there any forms that remain as dense in both liquid and solid states?
- How can a real physical system have no analytical solution?
- Why do strawberries lose their color when you cook them?
- Why are Vitamins added to soy milk/almond milk?
- How far away are we from ocular implants? (tiny cameras in our eye-sockets?)
- If a human body suddenly got sucked up into outer space what would happen to the human body? Why wouldn’t humans flash freeze?
- Why does bismuth form square crystals and not triangle or hegagonal?
- Why is the salinity of the worlds oceans not constant?
- [Space]: Do the craters on the 'light'-side of the moon (the side facing us) mean that those meteorites just barely missed us? How did this side get hit, when it's always facing earth?
- Does your brain "compute" physics or does it "go from experience"?
- Is the air quality during the night-time in an urban area typically better or worse than during the day?
- Why is there a 2 dose and 3 dose schedule for guardasil, and why does age matter?
- How are old medications destroyed when returned to pharmacies?
- In the formation of an extra-tropical cyclone in the Northern Hemisphere, is there a difference in the circulation pattern between the occlusion stage and the bent-back occlusion stage?
- Why is there a mass defect in nuclear fusion?
- Are there any volcanoes in which the lava/magma is primarily iron? What are the prominent elements found in volcanoes?
- How does a computer know what a coding language is? How does it know the meaning of the english words you write within the code?
| Posted: 17 Feb 2019 04:58 PM PST |
| How do driverless cars detect and deal with ice and snow, especially when it comes to braking? Posted: 17 Feb 2019 04:40 PM PST As a seasoned winter driver, I often have to anticipate stopping distance and turn speed based on the road conditions ahead. You could be on a plowed patch of a main road, and then turn onto a snowy/icy side street. How do driverless cars deal with these conditions? Do they also "see" or is it based on the tire traction? [link] [comments]  |
| If we shed layers of skin cells all the time, how come moles/skin tags dont shed as well? Posted: 17 Feb 2019 02:48 PM PST |
| How does shape affect the strength of a spring? Posted: 17 Feb 2019 09:04 PM PST I've heard that a coil is a more efficient spring shape than a leaf. And just looking at the relative sizes of automotive coil springs VS their leaf counterparts, I believe it. But I've been looking for a way to express that mathematically, or a way to determine the springiness (I believe thats expressed as elastic potential?) of a spring shape, and I can't find an adequate reference. Can anyone point me in the right direction? [link] [comments]  |
| How is food poisoning tracked back to a common source? Posted: 17 Feb 2019 06:10 PM PST Especially when it is widespread across a large area. This kind of has 2 parts:
Do hospitals and doctored quiz people on their last few meals and then submit it to some kind of central database? Does the FDA or USDA get involved? Like assuming even 500 people got food poisoning in a region with millions of people and all went to different providers for treatment, what would make all those different doctors and hospitals take action do determine that this was widespread and not just assume it was a localized incident? [link] [comments]  |
| Posted: 17 Feb 2019 03:34 PM PST |
| How can a real physical system have no analytical solution? Posted: 17 Feb 2019 05:22 PM PST Hi r/askscience, I have a question that is part physics, part math and maybe even part philosophy. Anyways, I was wondering how real systems can exist but can't be solved analytically. I get that you can make an equation that can only be solved numerically. But I am a little confused at how real systems can end up with a definitive value if they cannot be solved exactly. Is humanity's knowledge of mathematics just limited and there is an exact solution we can get without approximating? Or if we know an equation or system of equations cannot be solved, how does the universe know what to do? I know this query is a bit vague, but hopefully somebody understands what I'm getting at. Any help or a push in the right direction of other helpful information would be appreciated! Thanks. [link] [comments]  |
| Why do strawberries lose their color when you cook them? Posted: 17 Feb 2019 03:26 PM PST From my 8 year old daughter- when I cooked a strawberry cobbler, I noticed that some of the strawberries had turned white after cooking. I looked, but Google was no help. So, why do they lose their color when cooked? [link] [comments]  |
| Why are Vitamins added to soy milk/almond milk? Posted: 17 Feb 2019 05:31 PM PST Vitamins such as D, and various types of B vitamins are added to the ingredients. Are these considered supplements? And do we actually reap the benefits of the added vitamins? [link] [comments]  |
| How far away are we from ocular implants? (tiny cameras in our eye-sockets?) Posted: 17 Feb 2019 07:46 PM PST My vision is slowly going. Good thing my glasses still work alright. And instead of LASIK someday, I'd rather wear ocular implants that can also zoom in and out, record video, see infrared (and other visual frequencies) and do much more than original 20/20 eyes can. So how is the development of ocular implants coming along these days? And when will we have practical, working ocular implants ready to be installed in the blind? [link] [comments]  |
| Posted: 17 Feb 2019 03:44 PM PST |
| Why does bismuth form square crystals and not triangle or hegagonal? Posted: 17 Feb 2019 05:12 PM PST |
| Why is the salinity of the worlds oceans not constant? Posted: 17 Feb 2019 03:48 PM PST |
| Posted: 17 Feb 2019 10:28 AM PST |
| Does your brain "compute" physics or does it "go from experience"? Posted: 17 Feb 2019 11:58 AM PST Let's say i'm trying to throw a ball at a target. When I take aim, does my brain try to calculate the physics "behind the scenes" or is it more like "the last few times I threw a ball this heavy this hard with this wind, it'll land about there"? [link] [comments]  |
| Posted: 17 Feb 2019 06:53 AM PST I typically open the windows at night (during summer) to let the cool air in and get some "fresh air" into the house. Initially I thought this air would be better quality since most of the traffic has stopped and the roads/buildings have been quiet for a while. However, some internet sources seem to indicate the opposite - that air quality is worse at night and better either in the morning or afternoon. But no source seemed conclusive or seemed to offer a reasonable scientific explanation as to why they reached their conclusion or to back up the data. Would it matter where you were as well, in terms of climate factors (e.g. say the east vs. west coast, etc.)? Thanks. [link] [comments]  |
| Why is there a 2 dose and 3 dose schedule for guardasil, and why does age matter? Posted: 17 Feb 2019 01:04 PM PST Guardasil can be administered as a 2 dose schedule if the patient is under 15, but a 3 dose schedule is required if the patient is over 15. Biologically what happens at 15 to cause another dose to be required? Is there any documentation of the effectiveness of an adult following the 2 dose schedule? I assume that first dose takes a while to become effective. Is there some kind of a graph showing when it is most effective? [link] [comments]  |
| How are old medications destroyed when returned to pharmacies? Posted: 17 Feb 2019 08:28 AM PST |
| Posted: 17 Feb 2019 03:45 PM PST My textbook says that when an occluded front forms, the upper level pattern now features closed circulation almost directly above the surface cyclone (i.e. it is nearly vertically stacked). It then goes on to say that such cyclones may continue deepening, forming a bent-back occlusion in which a closed, nearly vertically-stacked system that is troposphere-deep (and moves very slowly) develops. Is there a difference here? Or is the textbook just doing a mediocre job of saying that closed, nearly vertically stacked circulation occurs with the formation of the occluded front? Thank you! [link] [comments]  |
| Why is there a mass defect in nuclear fusion? Posted: 17 Feb 2019 03:15 PM PST I am doing a physics project on nuclear fusion. I understand mass is energy due to Einstein's equation and understand that energy is released during fusion due to a mass defect between the nuclei fused and the helium/neutron produced. My question is why is there a mass change. Why is a helium-4 nucleus + a neutron lighter than a deuterium nucleus and a tritium nucleus even though the amount of neutrons/protons on either side of the fusion is the same? [link] [comments]  |
| Posted: 17 Feb 2019 10:33 AM PST |
| Posted: 17 Feb 2019 05:13 PM PST Like when you're writing words like "Return" or "True/False", how could a silicon rectangle "know" what that means? [link] [comments]  |
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