- Banana. We are regularly told that bananas are under threat. Are there other strains of Banana under development, if so how far away are they to commercial introduction and what other measures might be under way to protect this staple crop?
- Is it possible to completly solve chess?
- Is it possible to taste/smell chirality?
- At higher altitudes, you weigh less. At lower altitudes, you weigh more. At the center of the earth, you'd weigh zero. At what depth would you weigh your maximum?
- Why are properties of alloys not averages of the properties of it's component metals?
- Could a black hole's mass, event horizon size, and spin be used to calculate the size of the singularity - also giving a clue as to the actual density and state of the degenerate matter making it up?
- What are the Origins of the Water of Earth's Ocean's?
- AskScience AMA Series: We are neuroscience & neurotechnology researchers at Harvard Medical School with a mission to communicate science to general audiences. Ask us anything!
- How does medicine act differently when administered via different methods?
- Would Lorentz Contractions occur in objects made of antimatter?
- I know space can bend but can it tear?
- Why does 2 neutron stars colliding create a black hole, instead of a combined neutron star?
- What is the relation between the mass and radius of a star?
- Is dark matter taken into account when making any planetary or cosmological calculations? For example has anyone thought of the effects of dark matter when modeling the Moon formation? And to what scale do you stop taking it into consideration?
- Is there evidence of ayahuasca analog usage in other ancient cultures?
- How can you induce Cooper pair formation in BCS theory of Superconductors?
- How can an incompressible fluid at constant temperature exert different amounts of pressure?
| Posted: 29 Apr 2016 11:12 AM PDT It is widely advertised that current banana production is a monoculture, dominated by the « Cavendish » strain, and seemingly threatened by Fusarium (aka Panama disease). Is this threat as serious as the Press makes it seem to be (I've seen mentions on "Bananageddon" ... seriously)? [link] [comments]  |
| Is it possible to completly solve chess? Posted: 30 Apr 2016 03:25 AM PDT I don´t mean just programming an engine that is able to beat anyone. I mean to have a computer calculate the best turn (assuming that there always is exactly one best turn) in all possible position and storing the result as a file, so that another computer would have to do nothing but searching for the current position to know the best turn. And if it is possible, how long would it take the currently fastest computer to do so? [link] [comments]  |
| Is it possible to taste/smell chirality? Posted: 30 Apr 2016 06:23 AM PDT Can your senses tell the difference between different orientations of the same compound? [link] [comments]  |
| Posted: 30 Apr 2016 03:28 AM PDT |
| Why are properties of alloys not averages of the properties of it's component metals? Posted: 29 Apr 2016 09:50 PM PDT I was just doing some homework, and I read in my textbook that titanium alloys can be stronger than titanium even though titanium is the strongest metal. How does this work, wouldn't mixing titanium with a weaker metal make the mixture weaker than pure titanium? The same question applies for any alloy, the properties of alloys are not the averaged properties of the component metals. I sort of get how this would be, but I would like a good explanation so I fully understand it. Thanks! [link] [comments]  |
| Posted: 29 Apr 2016 04:25 PM PDT After reading an article recently on rotating (Kerr) black holes, I was struck by the fact that nature apparently applies a speed limit to them, where spin reduces the size of the event horizon, but can never reduce it to where you would find a naked singularity. But that then left me wondering the title question - what if any reason is there that given their mass and rate of spin, you couldn't deduce the angular momentum and then circumference of the singularity itself - giving more clues as to its nature? [link] [comments]  |
| What are the Origins of the Water of Earth's Ocean's? Posted: 30 Apr 2016 03:31 AM PDT I couldn't really find a clear answer on google. Thanks! [link] [comments]  |
| Posted: 30 Apr 2016 07:14 AM PDT Science In The News (SITN) is a graduate student organization at Harvard with a mission to bridge the communication gap between scientists and general audiences. We achieve this through various avenues online through our blog, podcast, and Reddit AMAs, and through free, local events in Boston & Cambridge including seminars, Science By The Pint, and DayCon – an annual science conference designed for the general public. In addition to our website, you can follow us on Facebook, Twitter, and Instagram. In our recent Special Edition on Neurotechnology, we have written a series of articles covering recent technologies that are pushing the boundaries of what we know about the brain. Each article describes how these new technologies have already impacted neuroscience and where these technologies are taking us next. With the potential to improve countless lives, we believe the future of neuroscience is bright and will only get brighter. For this AMA, we have gathered the authors of these articles and other Harvard PhD candidates conducting research in the field:
We look forward to your questions. Ask us anything! [link] [comments]  |
| How does medicine act differently when administered via different methods? Posted: 29 Apr 2016 08:46 PM PDT If I have pills of acetaminophen, and I swallow them, they provide pain relief within usually 30 minutes or so. Would there be a different affect if I were to crush a pill and inhale the dust, specifically through the sinuses? What if I were to use the pill as a suppository? Would these different methods of administration affect how the medicine behaves? [link] [comments]  |
| Would Lorentz Contractions occur in objects made of antimatter? Posted: 29 Apr 2016 05:28 PM PDT Or, does the charge of an antimatter object exhibit any different behavior than "regular" objects when approaching lightspeed? [link] [comments]  |
| I know space can bend but can it tear? Posted: 29 Apr 2016 03:22 PM PDT |
| Why does 2 neutron stars colliding create a black hole, instead of a combined neutron star? Posted: 29 Apr 2016 09:36 PM PDT |
| What is the relation between the mass and radius of a star? Posted: 29 Apr 2016 05:05 PM PDT I've been looking on the Internet for some kind of formula without success. I guess that the radius of a star might be influenced by many factors; if you want to describe them that would be great, but I would be happy just by knowing how the gravity of the mass influence the radius, simplifying phenomena like photon pressure for now. Is there a way to approximate the radius of a star only by knowing its mass? (I am programming some kind of 2D gravity simulator only for learning and gaming purposes) [link] [comments]  |
| Posted: 30 Apr 2016 12:26 AM PDT |
| Is there evidence of ayahuasca analog usage in other ancient cultures? Posted: 29 Apr 2016 04:46 PM PDT Are there regions outside of South America where naturally-occuring sources of both N,N dimethyltryptamine and a powerful monoamine oxide inhibitor, along with a method for preparing them in such a way as to facilitate an hallucinogenic experience, were (possibly) readily available to the indigenous peoples in the premodern era? If so, is there any lore from that region which might indicate that such a concoction was ever used in a religious or mystic ritual? Edit: clarified region, fixed typo [link] [comments]  |
| How can you induce Cooper pair formation in BCS theory of Superconductors? Posted: 29 Apr 2016 04:17 PM PDT What factors influence the electrons to pair up as Cooper pairs so that material defects do not affect the superconductivity as electrons flow along the material? Is it possible to generate the correct conditions with organic polymers, i.e: can we apply the principles of quantum coherence in photosynthetic systems to the room temperature superconductivity problem? Any help would be greatly appreciated as I am relatively new to this field and hope to learn anything I can. Thanks! [link] [comments]  |
| How can an incompressible fluid at constant temperature exert different amounts of pressure? Posted: 29 Apr 2016 01:28 PM PDT This is a question I've had for a long time in the back of my mind. We are told that water is incompressible (or at least, under reasonable conditions). In fact, even 4 kilometers under the ocean, the water is only 1.8% denser. Further, it's generally much colder than water at the surface. It is also my understanding that pressure, as exerted by a gas or liquid, is a function of the number and force of molecular collisions on a volume by a surrounding substance. If that's correct, how can fluids, such as water, exert different amounts of pressure? The water under the ocean is colder, and therefore the kinetic energy of the water molecules, and hence energy of collisions, is decreased, and it's only 1.8% denser, thus the change in the number of collisions per unit time cannot account for the 400x increase in pressure compared with the surface. I know I'm either missing something or misunderstanding something. Please help! [link] [comments]  |
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