Why is Greenland almost fully glaciated while most of Northern Canada is not at same latitude? |
- Why is Greenland almost fully glaciated while most of Northern Canada is not at same latitude?
- What physical features does a polar bears paw have to help grip on ice? And how does it not freeze?
- How are mountains formed on areas without tectonic activity?
- Why does damped oscillation depend on velocity?
- Why is carbon 14 radioactive and carbon 13/12 not?
- What causes death when someones neck actauly breaks/snaps?
- AM modulation - What are sidebands?
- Is unpolarised light made up of lots of different polarised photons OR are the E fields of the photons just rotating and moving around randomly and very quickly giving it the unpolarised aspect?
- How can film negatives filter infrared light?
- Why is there a flu season? Where does it go?
- How do hopping rovers function in a low g environment like an asteroid? Why wouldn't they just float away after the first hop?
- [Paleontology] How much does convergent evolution affect confidence in the fossil record taxonomy?
- Why does a high electrical current kill us?
- How does ellipticity work in CD-Spectroscopy?
- Why is the asthenosphere a molten liquid?
- Research into selective breeding for tameability found that domesticated foxes reach sexual maturity earlier than non-domesticated foxes. What could be a possible reason for this link?
| Why is Greenland almost fully glaciated while most of Northern Canada is not at same latitude? Posted: 22 Sep 2018 02:22 PM PDT Places near Cape Farewell in Greenland are fully glaciated while northern Canadian mainland is not, e.g. places like Fort Smith at around 60°N. Same goes on for places at 70°N, Cape Brewster in Greenland is glaciated while locations in Canada like Victoria Island aren't? Same goes for places in Siberia of same latitude. Why? [link] [comments]  |
| What physical features does a polar bears paw have to help grip on ice? And how does it not freeze? Posted: 22 Sep 2018 06:49 PM PDT |
| How are mountains formed on areas without tectonic activity? Posted: 23 Sep 2018 12:51 AM PDT |
| Why does damped oscillation depend on velocity? Posted: 23 Sep 2018 07:30 AM PDT Through Newton's Second Law, we can express damped harmonic oscillation as F=-kx-bv, where b is the damping coefficient. In a system, you would expect friction to be the main thing that causes damping-- yet its equation (F=uN) does not depend on velocity at all. What gives? [link] [comments]  |
| Why is carbon 14 radioactive and carbon 13/12 not? Posted: 22 Sep 2018 02:33 PM PDT Why does adding an extra neutron to the nucleus make it radioactive? [link] [comments]  |
| What causes death when someones neck actauly breaks/snaps? Posted: 22 Sep 2018 05:32 PM PDT Sorry if this is the wrong place! I was just curious because what causes the different levels of casualties after a neck breaks? I believe paralysis is the nervous system being cut off but more so the line between like a neck brace or death. [link] [comments]  |
| AM modulation - What are sidebands? Posted: 22 Sep 2018 09:19 AM PDT Hi, I'm studying electronics and communications and our teacher explains things pretty poorly. I didn't understand what the sidebands are. According to what I understood from my teacher, they're the upper and lower borders of the carrier signal's envelope, but according to what I made of wikipedia's first paragraph on the subject they sound more like by-products that exist on different frequencies. I'm so lost! [link] [comments]  |
| Posted: 22 Sep 2018 12:46 PM PDT |
| How can film negatives filter infrared light? Posted: 23 Sep 2018 01:09 AM PDT I've seen a couple of videos on making infrared cameras or infrared flashlights by putting film negatives (with no pictures on them) on the sensor/bulb. But how? Can anyone explain this? [link] [comments]  |
| Why is there a flu season? Where does it go? Posted: 23 Sep 2018 01:05 AM PDT |
| Posted: 22 Sep 2018 04:33 PM PDT |
| [Paleontology] How much does convergent evolution affect confidence in the fossil record taxonomy? Posted: 22 Sep 2018 07:33 PM PDT A modern example of Thylacine and Canis skulls:Image The sheer evolutionary distance is quite stunning - the Methatheria clade diverged at least 125 million years ago, in the upper Cretaceous, and the last common ancestor may have even further back in the Jurassic. And yet .... what if those skulls are all we ever found? Obviously we now have a clear geographic, geological, and biological background with plenty of detail to delineate the two .... but ... What of fossils from the distant past? [link] [comments]  |
| Why does a high electrical current kill us? Posted: 22 Sep 2018 11:21 AM PDT I just feel like it's something everyone knows not to mess with electrical appliances but current is just the movement of charges in a cable (which isn't even that fast). So what would actually have to happen to harm us? [link] [comments]  |
| How does ellipticity work in CD-Spectroscopy? Posted: 22 Sep 2018 04:39 PM PDT I'm struggling to understand the concept of ellipticity as a unit in CD-Spectroscopy. My main problem is that I don't understand what values for molar/specific and general ellipticity are typical. Or to explain my problem in a different way: I thought that θ can only have values between 0° and 45° but in this study: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0111341 figure 1 shows values of θ up to an order of magnitude of 6-7. [link] [comments]  |
| Why is the asthenosphere a molten liquid? Posted: 22 Sep 2018 08:13 AM PDT The asthenosphere is molten silicate rock but further down its solid why ? It goes from the surface Solid Semi sold Molten Solid Why ! [link] [comments]  |
| Posted: 21 Sep 2018 09:32 PM PDT |
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