Is the brain of someone with a higher cognitive ability physically different from that of someone with lower cognitive ability? |
- Is the brain of someone with a higher cognitive ability physically different from that of someone with lower cognitive ability?
- How do birds learn the call that's specific to their species?
- How come all the planets seem to be on an even plane around the sun?
- What’s the point of max linear dimensions (L+W+H <=158cm) rule used by airlines? Why is it not volume based(L*W*H)?
- What's the difference between actual sleep and just laying down when fighting off a disease?
- What’s the difference between sleep and just laying down/resting?
- Out of all the spacecraft we have landed on planets, is it possible some may of contained bacteria that has stayed on that planet? And possibly even spread?
- Why does the western part of North America have so many named, smaller deserts, despite seemingly all being next to each other? Why don't we name it as one single desert like we do with the Sahara?
- Why do animal trials rarely translate into novel medical therapies in humans?
- Using a magnet as the core of an electromagnet?
- What does it mean to claim fractional electric charge particles exist in the Earth's core?
- What was there before the Big Bang ?
- If a high-energy neutrino passes through my body and interacts with the atoms within, will it produce light, however fleeting?
- Is the water at the bottom of the ocean more "condensed"?
- How large are eddy currents generated by time-varying magnetic fields?
- Has there been any research on methods for obstacles to identify themselves to an autonomous vehicle?
- Can ants differentiate between colonies?
- How come I share 99% of my DNA with a chimp, but only half with my brother?
- Why do some isotopes, such as potassium-40, undergo beta decay while others do not?
- Is it possible to hold anti-matter in a vacuum container that's being blasted with photons to keep it in place?
- Does light hurt deep sea creatures?
- How do objects with special paint emit different colours depending on where you view it from?
| Posted: 16 Jul 2018 09:56 AM PDT If there are common differences, and future technology allowed us to modify the brain and minimize those physical differences, would it improve a person's cognitive ability? [link] [comments]  |
| How do birds learn the call that's specific to their species? Posted: 17 Jul 2018 07:29 AM PDT Would a bird that has never met another of its species still make the same call? Could isolated populations of the same species develop calls that are different to one another? [link] [comments]  |
| How come all the planets seem to be on an even plane around the sun? Posted: 17 Jul 2018 06:49 AM PDT It seems that In a 3D environment, that the would orbit at all different angles. Another question: why do they all orbit the sun the same way? [link] [comments]  |
| Posted: 17 Jul 2018 07:07 AM PDT A lot of airlines around the world now have a max linear dimension limit (http://www.travelmerry.com/ViewBaggageInfo.aspx) and it is typically 158cm. Apparently some airlines routinely charge the passengers even if the linear dimensions are exceeded by 5 cm. Now I am guessing this rule was designed keeping suitcases in mind. Assuming a typical suitcase shapte which fulfils this 158 cm rule ( 78+48+32), you end up with a volume of approximately 120Litres. Let's call this the intended volume limit. If you are exceeding the dimensions by 5 cm ( 2.5+1.5+1), you could end up with a volume of approximately 131 Litres. i.e 11 litres more than the intended volume limit. But if someone checks in a cube shaped box ( each side measuring 158/3 = 52.67cm) with a volume of 146 Litres he is still not charged despite being about 26 litres over the intended volume limit! From the airline's point of view they are concerned about two things – volume and weight. Although the liner dimension(L+W+H) has a bearing on the volume, why not be more specific and have a rule about the max volume(LWH)? Edit: calculations [link] [comments]  |
| What's the difference between actual sleep and just laying down when fighting off a disease? Posted: 16 Jul 2018 05:47 PM PDT I've currently got a cold, so my body needs rest to fight it off and recover. What's the biological difference between having an actual sleep, or just laying horizontal and watching tv/reading ? Is my immune system doing the same thing? Do I actually need more sleep when sick, or does physical inactivity suffice? [link] [comments]  |
| What’s the difference between sleep and just laying down/resting? Posted: 16 Jul 2018 08:17 AM PDT Why is sleep required for our bodies, and what does it do that simply laying down and resting doesn't do? [link] [comments]  |
| Posted: 16 Jul 2018 05:25 PM PDT |
| Posted: 17 Jul 2018 02:28 AM PDT Reading through the Wikipedia article on deserts in NA, I noticed that there's no single name for the desert on the western half of the continent, but it's seemingly broken up into smaller parts. Why is this? I suspect that part of it may be that, since it's oriented by longitude, the desert in British Columbia is different from Baja California or Mexico, but I'm not sure. [link] [comments]  |
| Why do animal trials rarely translate into novel medical therapies in humans? Posted: 17 Jul 2018 12:14 AM PDT Tons of treatments, especially those regarding neurodegenerative diseases or cancers proclaim breakthrough treatments in diseases of mice. However these announcements usually stay as announcements, and no new therapies come from it in the years that follow. Why is this so? [link] [comments]  |
| Using a magnet as the core of an electromagnet? Posted: 16 Jul 2018 07:13 PM PDT If I aligned the poles of the magnet and the electromagnet,(North of magnet is at North of electromagnet), would the magnetic flux of the magnet And electromagnet superpose on each other? [link] [comments]  |
| What does it mean to claim fractional electric charge particles exist in the Earth's core? Posted: 16 Jul 2018 04:16 PM PDT I was listening to this panel that's loosely constrained to talk about string theory. At the timestamp Witten is claiming that 1/5 electric charge particles could exist in the Earth's core. I'm not very familiar with the subject, but I did some Googling and found quite a few articles on "The Search for Fractional Electric Charge." Can someone give an explanation on: a. Why fractional charge is controversial, or at least was at the time of this panel discussion b. How would someone observe this if they are in the core of planets. c. Was this taken seriously as an answer to the missing baryon problem? One of the members at the table makes a quick comment about it. [link] [comments]  |
| What was there before the Big Bang ? Posted: 17 Jul 2018 05:14 AM PDT |
| Posted: 16 Jul 2018 09:57 AM PDT I was reading about the remarkable IceCube neutrino detector and considering the high energy neutrinos creating a trail of photons as they pass through everything, including our bodies. Is that accurate? If so, what becomes of such photons? Do they escape? [link] [comments]  |
| Is the water at the bottom of the ocean more "condensed"? Posted: 17 Jul 2018 12:03 AM PDT Is the water in the deepest parts of the ocean more "condensed" due to the pressure? Also say you manage to get the water at the deepest parts of the ocean in a container, what happens to that container once you start bringing it back to the surface and open it? Does the water shoot out due to it no longer being under pressure, or does nothing happen and you just have a container of water? [link] [comments]  |
| How large are eddy currents generated by time-varying magnetic fields? Posted: 16 Jul 2018 09:02 AM PDT I want to try an experiment where I detect joule heating due to eddy currents. I want to induce eddy currents in a small copper plate. I have a function generator providing AC voltage and an (audio) amplifier to boost the signal provided by the function generator. I have a coil of wire (speaker coil to be precise) that will act as an inductor. I attach the output of the amplifier to the coil (with the impedances matched) and since the input is a time-varying voltage, it will produce time-varying current in the inductor, which should then generate eddy currents. Is there any formula to be able to estimate the eddy current and power loss due to eddy currents? Thanks guys :) [link] [comments]  |
| Posted: 16 Jul 2018 08:16 AM PDT I've been reading a lot of articles about artificial detection in AVs and all the research is focused on AVs using their onboard sensors to detect essentially uncooperative obstacles. What I'm wondering is if there's any research related to signal emitters or other devices which could be attached to pedestrians/cyclists/other vehicles (or even signs, roads, etc.) to provide environmental data directly to the ego-vehicle. [link] [comments]  |
| Can ants differentiate between colonies? Posted: 16 Jul 2018 09:55 AM PDT If one ant comes across another ant from a different colony, is there a way it can tell its not from theirs? [link] [comments]  |
| How come I share 99% of my DNA with a chimp, but only half with my brother? Posted: 17 Jul 2018 12:36 AM PDT |
| Why do some isotopes, such as potassium-40, undergo beta decay while others do not? Posted: 16 Jul 2018 07:57 AM PDT If a neutron can decay into a proton, and some other subatomic particles, via the weak nuclear force, why does this not happen in all atoms? [link] [comments]  |
| Posted: 16 Jul 2018 07:26 PM PDT Just thought of this, couldn't find a good answer online. I'm probably wrong but I'm curious as hell now. [link] [comments]  |
| Does light hurt deep sea creatures? Posted: 16 Jul 2018 07:58 AM PDT When researches/robots go down into the ocean past the limit of what light reaches and they use a source of light to be able to look, like a flashlight. Does that light hurt the animals or make them uncomfortable in some way? [link] [comments]  |
| How do objects with special paint emit different colours depending on where you view it from? Posted: 16 Jul 2018 10:44 AM PDT |
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