Why do Cockroaches die on their backs so frequently? |
- Why do Cockroaches die on their backs so frequently?
- Can a laser beam occur naturally?
- In the average human lifespan, how many viruses do we contract, and overcome?
- Are flies dirty?
- How many dimensions are there and can they be described or what do they look like and how do they work?
- What is the probability of a star not having planets?
- How long is the process of a supernova?
- If you could actually hold liquid magma and it not burn you, what would it feel like in your hands?
- How much does a virus have to change for our immune system not to recognize it?
- What was the Huygens camera made of?
- After the first initial moments after the big bang, why didn't the universe collapse in on itself and form a black hole?
- If faecal transplants from obese donors can induce obesity in recipients, can living with an obese person increase risk of weight gain through other forms of bacterial transfer?
- Is there a field associated with fermions?
- Why do the Heat and Wave Equations look so similar?
- How did the separation of the American continents from Europe and Africa increase the planets oxygen levels?
- How does a ground/earth pin work on a plane?
- Why are there accretion 'disks', shouldn't they be accretion 'spheres' or 'oblates'?
- Theoretically, is it possible for an intelligent being living in the second dimension to 'discover' the third dimension?
- Does encrypted communication "stack"? (HTTPS/VPN)
- Is there any interesting chemistry that happens with Lanthanides/Actinides?
- Why are proteins often described as behaving like anions in cell membrane physiology?
| Why do Cockroaches die on their backs so frequently? Posted: 18 Aug 2016 09:14 AM PDT Around my school I often avoid stepping on a dead roach, but for some reason these dead roaches are always on their backs. What would compel an insect with a microscopic brain to flip over before they die of natural or possibly otherwise causes? It seems a pointless habit and yet Every dead cockroach I have ever seen does that. Is there an evolutionary advantage to such a strange occurrence? [link] [comments]  |
| Can a laser beam occur naturally? Posted: 18 Aug 2016 07:55 PM PDT |
| In the average human lifespan, how many viruses do we contract, and overcome? Posted: 19 Aug 2016 04:56 AM PDT |
| Posted: 18 Aug 2016 01:52 PM PDT Do flies actually carry disease/germs/etc in and on themselves? Does a fly landing on food contaminate it? [link] [comments]  |
| Posted: 19 Aug 2016 04:15 AM PDT I know what the 1st, 2nd and 3rd dimension looks like but are there more? I've seen some things talking about dimensions up till the 9th but i can't make my mind up on how what they look like or can they simply not be described? [link] [comments]  |
| What is the probability of a star not having planets? Posted: 18 Aug 2016 01:04 PM PDT Can it be that all stars have/had planets at some point in their life-cycle? Or having planets is as unique as planets having satellites(moons)? [link] [comments]  |
| How long is the process of a supernova? Posted: 18 Aug 2016 08:12 PM PDT How long does the initial explosion take? One second? One minute? One hour? Several years? Also, how long does it take for a supernova to become a neutron star/black hole. [link] [comments]  |
| If you could actually hold liquid magma and it not burn you, what would it feel like in your hands? Posted: 18 Aug 2016 08:21 PM PDT |
| How much does a virus have to change for our immune system not to recognize it? Posted: 18 Aug 2016 01:19 PM PDT I've always heard that old saying 'you never get the same cold twice.' And the flu needs new vaccines every single year. It makes me wonder, how different can the cold be? It's still a cold, but somehow different enough to bypass what my immune system 'learned' about all those previous colds. [link] [comments]  |
| What was the Huygens camera made of? Posted: 18 Aug 2016 03:48 PM PDT The atmosphere and conditions of Titan don't seem like they'd be conducive to photography. Light amplification and such aside, it's bleeping cold there. What was the Huygens camera made of? Was it relatively ordinary and just well-insulated, or was it a bit special compared to the kind of camera I'm used to? [link] [comments]  |
| Posted: 18 Aug 2016 11:23 AM PDT |
| Posted: 18 Aug 2016 12:04 PM PDT Is there any evidence that bacteria passed through primary and secondary contact can have the same effect as that from a faecal transplant? [link] [comments]  |
| Is there a field associated with fermions? Posted: 18 Aug 2016 02:26 PM PDT This is my first question here, so let me know if it should be relegated to a different subreddit instead... Struggling with understanding the foundation of the quantum nature of particles. After going through QED and The Quantum Universe, I gathered some random facts, but something is todavía missing. Please help me feel up this elephant from the different angles...
Thank you! [link] [comments]  |
| Why do the Heat and Wave Equations look so similar? Posted: 18 Aug 2016 12:04 PM PDT LaTeX: \alpha^ 2 u_ {xx} = u_ t Versus \alpha^ 2 u_ {xx} = u_ {tt} The only apparent difference is that the Wave Equation has another derivative with respect to time on the right hand side. [link] [comments]  |
| Posted: 18 Aug 2016 04:02 PM PDT Currently reading "The Universe Within" by Neil Schubin. It states the separation of the continents and the opening up of the Atlantic Ocean led to a lot more new coastline that could erode, dumping sediment into the water covering up mud on the oceans floor that was filled with single celled creatures consuming oxygen as they decay. Because they were covered up, that oxygen became free for other uses on the planet. The book states that in the world before the continents separated we would struggle to breath sitting down vs afterwards a world existed where mammals could run around. But I feel like I'm missing something. If the continents were connected, then there would be no ocean between them to even have an oxygen consuming mud floor. How does the creation of the Atlantic Ocean solve a problem that doesn't exist before there is an Atlantic Ocean? [link] [comments]  |
| How does a ground/earth pin work on a plane? Posted: 18 Aug 2016 12:13 PM PDT I was on an American Airlines flight and noticed that there were power plug holes on the backs of the seats, 110v 60hz, they had earthing ports, how did they work? [link] [comments]  |
| Why are there accretion 'disks', shouldn't they be accretion 'spheres' or 'oblates'? Posted: 18 Aug 2016 11:58 AM PDT I have always been quite confused by how black holes are represented to the layman. It seems the most common representation of black holes/gravity in general is to use a rubber sheet and drop a mass in it. Using this model, it makes sense to have a 'disk' of materials. i.e. (forgive the oversimplification) if we just scatter some particles on top of the rubber sheet, then they would form a disk around the mass. Naturally, the universe isn't a 2D rubber sheet, a black hole exists in many more dimensions. Since this is the case, wouldn't materials that that get drawn towards a black hole come from all directions? Thereby creating a sphere of materials rather than a disk? To maybe be a little clearer, please see this image on wikipedia. The blue area is the accretion disk, but sure the black hole should be drawing the matter from the star from 'all directions' rather than on a seemingly flat plane? Hope I made sense! [link] [comments]  |
| Posted: 18 Aug 2016 08:29 AM PDT |
| Does encrypted communication "stack"? (HTTPS/VPN) Posted: 18 Aug 2016 09:20 PM PDT For instance, if I visit an https website such as my banking page while using a VPN that encrypts all communication, are there two layers of encryption? If not, why not? [link] [comments]  |
| Is there any interesting chemistry that happens with Lanthanides/Actinides? Posted: 18 Aug 2016 09:04 PM PDT I've never seemed to really talked about any chemistry that happens in this block of elements in any of my chemistry courses. What sort of chemistry goes on with this block? [link] [comments]  |
| Why are proteins often described as behaving like anions in cell membrane physiology? Posted: 18 Aug 2016 08:30 PM PDT I know there is a question of the permeability of the membrane (e.g. proteins not passing through membranes), but why are proteins often described as Anions in physiology textbooks. [link] [comments]  |
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