Trappist-1 Exoplanets Megathread! |
- Trappist-1 Exoplanets Megathread!
- What are researchers and scientists primarily doing on Antarctic missions? What have been the most significant discoveries or advancements from this study?
- Robots are being used to investigate and clean-up the Fukushima reactor, but these breakdown due to the high radiation levels. How does nuclear radiation cause malfunctions in robots, and what components will be most affected?
- How do electrons behave at Absolute Zero?
- Expansion of the universe: Has the universe ever had a Temperature of for example 68°F/15°C ?
- How do we fight confirmation bias?
- Given current technology, what is the fastest space probe humans could make?
- Will quantum mechanics and general relativity ever be able to come together, or must we invent new kinds of mathematics (ways to solve the problem)?
- How do oil paints dry?
- What are these weird circles and bumps on these rocks?
- What causes sufferers of dyslexia to perceive words as jumbled up?
- If a proton was fired into a neutron star, what would happen? And why would it not just be the largest hydrogen atom in the universe?
- [ASTRONOMY] Do we keep finding tidally-locked exoplanets because being tidally locked is the more common state for planets, or because such planets are easier to detect?
- Can 2 planets share the same orbit as each other around a sun?
- Would it be possible to create a car that is powered by the driver's body heat?
- What is the science behind the "Euler's Disk"?
- Why do protons not repulse themselves in atom nuclei?
- It is known that Antarctica was once at least partially forested. Around what time in the past did the last trees on the continent die off?
- What did the sun look like just before it "ignited"?
- So if we see a andromeda galaxy as it was two million light years ago and its traveling towards us at a set speed how close is it now in light years?
- Why are some common lab-grade reagents used in food production, such as NaCl, labeled as "lab use only" and "not for consumption"?
| Trappist-1 Exoplanets Megathread! Posted: 22 Feb 2017 02:50 PM PST There's been a lot of questions over the latest finding of seven Earth-sized exoplanets around the dwarf star Trappist-1. Three are in the habitable zone of the star and all seven could hold liquid water in favorable atmospheric conditions. We have a number of astronomers and planetary scientists here to help answer your questions!
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| Posted: 23 Feb 2017 03:01 AM PST |
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| How do electrons behave at Absolute Zero? Posted: 23 Feb 2017 07:00 AM PST Physics / Chemistry Things I think I know: Atoms slow down as temperature decreases. Absolute Zero is the temperature at which atoms stop moving Scientists apparently reached temperatures below Absolute Zero in 2013 Source: https://www.mpg.de/research/negative-absolute-temperature My question: Do electrons slow down or even stop at Absolute Zero or temperatures below Absolute Zero? I'm assuming there is going to be a quantum mechanics related answer but I'm not too educated on that field so an explanation is also appreciated. Thanks! [link] [comments]  |
| Expansion of the universe: Has the universe ever had a Temperature of for example 68°F/15°C ? Posted: 22 Feb 2017 04:46 PM PST We all know the universe is expanding and getting colder. It's about 1-2 kelvin now (-271°C or -456°F) if I remember right. During the Big Bang it was kind of several trillion degrees kelvin. So it got colder and still cools due to its expansion. So my question is, was the temperature of the universe ever ''temperate'' ? Logically it must have been temperate for some amount of time during its cooldown. How long could the universe have been in that state (only minutes, or much longer like millions of years?) and how would it look like? Would planets with no parent (if they existed in that state) star be habitable nevertheless because space is kind of warm enough ? (not all life form require sun light) Was there a vacuum yet or not? (Thermal conduction in a vacuum can only happen due to radiation which is not that efficient) Hope some of you can help me to find some answers. :) [link] [comments]  |
| How do we fight confirmation bias? Posted: 22 Feb 2017 09:25 AM PST I recently read this article from the New Yorker. Its subtitle, 'New discoveries about the human mind show the limitations of reason', really annoys me. For one thing, none of this is all that new. It's just more evidence to add to the pile. Confirmation bias and a host of other failures of reason have been well documented and supported for a while now. Though it may help a little, spreading awareness about the existence of confirmation bias does not seem be enough to prevent people from succumbing to it. It seems to me the problem has been emphasized enough. It's time for some damn solutions! What does the research show so far? Are there any effective interventions for overcoming confirmation bias? [link] [comments]  |
| Given current technology, what is the fastest space probe humans could make? Posted: 22 Feb 2017 11:59 AM PST .1c? .05c? Less? What about technology we might have available in the next 50 years (I know this becomes hugely speculative, but I like speculation). The news about the newly-discovered exoplanets got me thinking that if we can get a probe going .1c, we could have one there within 500 years! [link] [comments]  |
| Posted: 22 Feb 2017 07:10 PM PST |
| Posted: 22 Feb 2017 02:30 PM PST Acrylic based paints dry by water evaporating, and oil paints dry by "oxidation." What is being oxidized, why does it cause the paint to become less wet, and why does it take so long? [link] [comments]  |
| What are these weird circles and bumps on these rocks? Posted: 22 Feb 2017 07:32 PM PST Recently took a trip to the Valley of Fire in the Nevada desert, and found these really interesting rocks. What are the circles and bumps on the rocks? They look like they could be fossils, but of what? Trees? Carrots? Can anybody tell me what these are? [link] [comments]  |
| What causes sufferers of dyslexia to perceive words as jumbled up? Posted: 22 Feb 2017 11:10 AM PST |
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| Can 2 planets share the same orbit as each other around a sun? Posted: 22 Feb 2017 12:36 PM PST I was thinking about the idea of moving Mars to the same distance as Earth and matching its velocity and direction to Earth's so that we could have more inhabitable space inside the 'sweet spot' distance to provide the perfect conditions for life. It got me thinking about how difficult this may be to align in reality. Any insight would be great thanks! edit: grammar [link] [comments]  |
| Would it be possible to create a car that is powered by the driver's body heat? Posted: 23 Feb 2017 06:01 AM PST |
| What is the science behind the "Euler's Disk"? Posted: 22 Feb 2017 01:53 PM PST If you don't know it, then it is pretty easy to look up. It's pretty damn mesmerizing and I've been wondering what the science is behind it [link] [comments]  |
| Why do protons not repulse themselves in atom nuclei? Posted: 22 Feb 2017 11:20 AM PST As particles with positive charge, they should NOT be aggregated. Why then are atoms (such as, lets say, uranium) posible? [link] [comments]  |
| Posted: 22 Feb 2017 07:46 AM PST I can't seem to find anything that estimates when the last trees vanished from the continent. I am very curious about this. I assume that the majority of the forests disappeared first, but that straggler populations persisted in favorable areas for a while afterward. Is this thought to be true? Do we have any real data on this, or just estimates? [link] [comments]  |
| What did the sun look like just before it "ignited"? Posted: 22 Feb 2017 09:20 AM PST I'm curious as to how a star appears before it reaches the mass required for fusion. [link] [comments]  |
| Posted: 22 Feb 2017 10:53 AM PST |
| Posted: 22 Feb 2017 08:16 AM PST I have a 12 gallon HDPE chemical container with a NaCl MSDS attached to it. I want to use for storage of food grade liquids, but the container says the NaCl is for lab use only and not for consumption. By all accounts, my other containers should not be used for storage as they once held acids of various types. If cleaned and sanitized using food-safe chemicals, why should I not use these NaCl containers? [link] [comments]  |
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