How do some air-freshening sprays "capture and eliminate" or "neutralize" odor molecules? Is this claim based in anything? |
- How do some air-freshening sprays "capture and eliminate" or "neutralize" odor molecules? Is this claim based in anything?
- If a males testicles are removed before puberty occurs does the male grow to be the size they would have been if the testicles were still there?
- What is physically happening in the brain when we forget something?
- How are the voices of objects such as GPS systems or Alexa created? Do the programs use voice samples to create sentences in real-time, or is everything pre-recorded?
- How does herpes work? Why cant it be cured and how does it appear in specific locations on the human body?
- Is real space and reciprocal space in condensed matter a covariant and contravariant basis respectively?
- How does this "watercoloring" kid's book work?
- What is the Hercules-Corona Borealis Great Wall?
- How is yield on atomic and hydrogen bomb explosions meassured?
- What makes a programming language "good" for certain tasks?
- Why do MRI scans take a moderate amount of time to complete, while fMRI scans are able to function in near-continuous manner (i.e. on an order of seconds instead of hours)?
- What temperature is the surface of a puddle?
- How do snail’s shells stay on?
- How do humpback whales separate all thier food from the thousands of gallons of water it comes with?
- Is it possible to have two planets orbiting one star, but they orbit on opposite sides of said star?
- How did NASA first dealt with radiation in space ?
- Could "active light cancelling" exist?
- Besides opposable thumbs, what other steps in evolution led to humans?
- What is the evolutionary advantage of the tibula and fibula being separate and not one combined bone?
- Are there any sub/species that feed solely through cannibalism? If not, is such a thing theoretically possible?
- Why do you lose consciousness when you get hit by something? And what exactly happens when trying to recover from it and how do you wake up? Is it like waking up when you are done sleeping?
| Posted: 22 Dec 2018 05:17 PM PST |
| Posted: 22 Dec 2018 05:00 PM PST To add to my question, would the removal of the testicles before puberty cause the person to be uninterested in sex after they would have otherwise gone through puberty? [link] [comments]  |
| What is physically happening in the brain when we forget something? Posted: 22 Dec 2018 05:54 PM PST |
| Posted: 23 Dec 2018 02:25 AM PST |
| Posted: 22 Dec 2018 04:03 PM PST I know there are two major types of herpes virus but how is it possible that they appear in specific loactions? Why cant we get some type in some places? Finally, how is this virus incurable? [link] [comments]  |
| Posted: 23 Dec 2018 04:48 AM PST I'm very familiar with the condensed matter principles but I'm self studying tensor Calculus over Christmas. It seems like they are very similar concepts, they obey almost the same othorgonality, and the unit vectors transform slightly differently. In one, by a mix of dot and cross products and in the other by a metric tensor. With these differences in mind, can these concepts be considered equivalent? Perhaps one is a generalization of the other? Lastly, in condensed we transform functions into the reciprocal space via the Fourier transform, is this a general relationship between functions in covariant and contravariant spaces? [link] [comments]  |
| How does this "watercoloring" kid's book work? Posted: 22 Dec 2018 11:19 PM PST My Friend's Kid has this coloring book, how does this work? For those of you who've never see this before it's a coloring book that's blank. When you add water, the colors appear. Once it dries the colors fade and you're left with a white page again. I'm really curious about the science behind this, what's happening here? [link] [comments]  |
| What is the Hercules-Corona Borealis Great Wall? Posted: 23 Dec 2018 12:01 AM PST I have heard this mentioned as the largest structure in the universe at ten billion light years across. What is it, why is it classified as a single structure, what is it made of and how does it exist? [link] [comments]  |
| How is yield on atomic and hydrogen bomb explosions meassured? Posted: 23 Dec 2018 04:13 AM PST I mean physically? What kind of device or contraption is actually used? Wouldnt the explosion just vaporize any meassureing device? [link] [comments]  |
| What makes a programming language "good" for certain tasks? Posted: 22 Dec 2018 06:39 PM PST For example, I've heard that Python is a "good" language for data analysis, and C# is for building apps. Theoretically, all programming languages should be able to do the same things, so what makes one better for a certain task? Is it the standard libraries? [link] [comments]  |
| Posted: 22 Dec 2018 07:57 PM PST |
| What temperature is the surface of a puddle? Posted: 23 Dec 2018 05:54 AM PST The other day my friend said the surface a puddle was at 100 degrees. I explained the difference between evaporation and boiling. Then they replied with this 'Some of the water will evaporate and you could work out how much energy that transfers and link that to a temperature, which would be surprisingly high. KE =3/2kT.' Isn't that just the average Ke? If that equation was applied to one or two particles at the surface. What would the temp actually be? Can this equation actually be applied. I have confused myself. Any help appreciated. [link] [comments]  |
| How do snail’s shells stay on? Posted: 22 Dec 2018 03:45 PM PST |
| How do humpback whales separate all thier food from the thousands of gallons of water it comes with? Posted: 22 Dec 2018 06:07 PM PST |
| Is it possible to have two planets orbiting one star, but they orbit on opposite sides of said star? Posted: 22 Dec 2018 10:09 AM PST I know its been asked before, but I have specific questions I didn't see asked. The details of this scenario: A Sol-like star (age, size, composition, etc.) with two planets in the exact same orbit, and inclination. I understand the mathematic improbability of this, and that this is, if it existed or exists, a most unlikely natural occurrence. But I just want to know, even if by unnatural means, this would be a stable system, or if they would be slowly torn up by gravitational effects between the three bodies? I am rather ignorant to most of physics so barney-style this (simplify) as much as you can please! [link] [comments]  |
| How did NASA first dealt with radiation in space ? Posted: 22 Dec 2018 04:22 PM PST Specifically with the computers. How could they function when first going to the moon? [link] [comments]  |
| Could "active light cancelling" exist? Posted: 22 Dec 2018 07:25 PM PST As of today, we have developed efficient active noise cancelling technology that we can find in popular headphones. Could the same idea apply to light, even if we are talking about EM waves and not mechanical waves? [link] [comments]  |
| Besides opposable thumbs, what other steps in evolution led to humans? Posted: 22 Dec 2018 03:16 PM PST I grew up taught that giraffes probably started as regular necked animals like horses, but the food was too high so "they evolved to have longer necks". I now understand that life doesn't evolve intentionally. Mutations occur which the life form must use to survive, or die. Giraffes who just happened to be born with sightly longer necks could better reach the food, so they survived and bred, and over enough generations the longer necked ones continued to be better able to survive so the longer the neck, the better the chance to survive and breed. Opposable thumbs gave us the ability to manipulate small objects and the smarter of us figured out how to make tools... From my limited understanding of human evolution, the fabrication of tools was one of the major steps in human evolution. What other events/achievements were possible only for humans, due to an early mutation? Thanks! [link] [comments]  |
| Posted: 22 Dec 2018 12:21 PM PST |
| Posted: 22 Dec 2018 04:14 PM PST |
| Posted: 22 Dec 2018 12:24 PM PST Title explains. Is there a specific process that affects the nervous system to be knocked out and what exactly does it do when trying to wake up? [link] [comments]  |
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