Kepler Exoplanet Megathread |
- Kepler Exoplanet Megathread
- How did dyslexia manifest itself before the invention of written language? Or, alternatively, was dyslexia developed due to written language?
- Is the element at 118 on the periodic table the last element that can possibly exist, or is it feasible that elements higher than that could exist with more protons in the nucleus, or electron orbitals higher than 7p, etc?
- Why did trilobites go extinct?
- What would it feel like to be in a microwave? Would I just suddenly feel hot, or would there be other sensations?
- What modern group of humans are Egyptian mummies DNA most closely related to?
- Electrostatics phenomenon: moving charge lights up a fluorescent lamp.?
- Why is there such a disparity between the redshift value of the CMB and that of the most distant astronomical object observed?
- Could there be objects that have a figure-8 shaped orbit around the sun and the Alpha Centauri System?
- What happens to the "hardness" of ice as it is cooled close to absolute zero?
- Is there such thing as late spin?
- Why is a balloon initially hard to blow up, but then easier to force air into after it has expanded a bit?
- What was the lowest temperature on Earth during the last ice age?
- What causes a Coronal Mass Ejection?
- How close could you get to the sun before you ignite into flames?
- Is it possible to not lose weight when on a calorie deficit?
- Is our emotional response to certain colors caused by nature or nurture?
- How strong is solar wind, and/or radiation pressure? Is it strong enough to have a major effect on the path of a manned mission to let's say Mars?
- How would a spinning top work in lower gravity than that of Earth?
- In, lets say, an electric dc motor in a vacuum, given it rotates it means it has acceleration. If it has acceleration with a consistent power, besides friction what inhibits its from reaching extremely fast top speed/breaking point?
- Why does silica gel absorb water so effectively, and why only water?
- Do we really have 3/4 of the fundamental forces entirely figured out? My friend in physics basically said there's nothing left to learn about them except for gravity
| Posted: 10 May 2016 02:04 PM PDT Hi everyone! The Kepler team just announced 1284 new planets, bringing the total confirmations to well over 3000. A couple hundred are estimated to be rocky planets, with a few of those in the habitable zones of the stars. If you've got any questions, ask away! [link] [comments]  |
| Posted: 09 May 2016 08:27 PM PDT |
| Posted: 10 May 2016 05:06 PM PDT Just played around with an online tool that showed electron spins in the various orbitals for each element on the periodic table. It got me thinking why does the orbital stop at 7p - could a 7d+ exist? Why or why not? [link] [comments]  |
| Why did trilobites go extinct? Posted: 10 May 2016 08:57 PM PDT Trilobites were plentiful in the Earth's oceans for over 200 million years, and seem to have had a very simple formula for existing, similar to insects - armored swarms that have many offspring over their lifetimes. However, they completely disappeared, in spite of their diversity and simplicity. How did conditions change so that even the trilobites couldn't survive? [link] [comments]  |
| Posted: 10 May 2016 02:19 PM PDT |
| What modern group of humans are Egyptian mummies DNA most closely related to? Posted: 10 May 2016 06:10 PM PDT |
| Electrostatics phenomenon: moving charge lights up a fluorescent lamp.? Posted: 10 May 2016 08:27 PM PDT I'm messing around with electricity for a class on electrostatics. I have a toy latex balloon (about 8 inch diameter blown up) and an unmounted fluorescent bulb, specifically an F8T5 lamp, which is about 12 inches long. It seems I can light up the tube just by moving a charged balloon around nearby. Can you explain this? I charge the balloon by rubbing it on my shirt. The lamp is held in one hand at one end. In my other hand is the charged balloon. Now if I just wave the balloon around, or back and forth, the fluorescent lamp will glow, bright enough to see in a room with dim lighting. It also works if the lamp is laid on a table and the balloon waved around it a few inches away. If the balloon is not moving relative to the tube there is no light. I don't understand what is causing the light (presumably a discharge in the tube) when I wave the balloon around a few inches away. There are no sparks or audible crackles that I can perceive. The balloon needs to be moving just a few inches per second to make the lamp light up, and can cause the light from a distance of 5-10 inches. [link] [comments]  |
| Posted: 10 May 2016 08:18 PM PDT The numerical value of the cosmic microwave background's redshift is 1089 and Wikipedia lists one of the most distant objects, galaxy GN-z11, as having a redshift of 11.1. What accounts for the disparity in redshift values between the CMB and a high-redshift galaxy? [link] [comments]  |
| Posted: 10 May 2016 06:53 PM PDT According to Wikipedia, the oort cloud could extend as far from the Sun as 200,000 AU (3.2 ly). This would put parts of it well inside the sphere of influence of Alpha Centauri, which is 4.37 ly away. Based on this, it seems possible that objects could orbit both the Sun and the Alpha Centauri system in a figure-8 shaped orbit. Is this possible? [link] [comments]  |
| What happens to the "hardness" of ice as it is cooled close to absolute zero? Posted: 10 May 2016 07:46 PM PDT To expand, what happens at the molecular and subatomic level? [link] [comments]  |
| Is there such thing as late spin? Posted: 10 May 2016 05:25 PM PDT I heard a baseball announcer say, "Look at his slider it has late spin" saying his 2 seam fastball breaks more at towards the catcher. Is this possible? [link] [comments]  |
| Posted: 10 May 2016 12:33 PM PDT |
| What was the lowest temperature on Earth during the last ice age? Posted: 10 May 2016 12:30 PM PDT If the lowest temperature measured on Antarctica today is −89.2 °C what was the lowest possible temperature there during the last ice age and is it possible that there was frozen CO2 (dry ice) on Antarctica during the ice age? [link] [comments]  |
| What causes a Coronal Mass Ejection? Posted: 10 May 2016 04:58 PM PDT I am doing a research paper on CME's when I came to this question. Seemingly simple, it appears that there are several schools of thought on the matter from shock time of arrival model to the ENLIL model to the interplanetary magnetic field model. Is there a "right" model or is it still up for debate? Thank you [link] [comments]  |
| How close could you get to the sun before you ignite into flames? Posted: 10 May 2016 03:48 PM PDT |
| Is it possible to not lose weight when on a calorie deficit? Posted: 10 May 2016 06:33 PM PDT A pound of fat gives you 3500 calories, while (from what I've been told) a pound of muscle requires around 2500 calories, if you were to add a pound of muscle while removing a pound of fat, would you stay at the same weight even with a 1000 calorie deficit? [link] [comments]  |
| Is our emotional response to certain colors caused by nature or nurture? Posted: 10 May 2016 05:49 PM PDT Most people have a similar emotional reaction to certain colors. Have these reactions been hardwired into our DNA or are they taught to us? For example, perhaps over centuries of evaluation green became so associated with plants, food, health etc that we instinctively know this at birth. Im sure someone, somewhere has tested this but Ive never read a study. What would be ways of testing this? I was thinking maybe examining responses to color across cultures would be one way. [link] [comments]  |
| Posted: 10 May 2016 09:00 PM PDT I know that we have designed ships based on the pressure of the light coming off the Sun, but would it be possible that it could have an affect on the long term path of a manned or unmanned object? For example, did they have to calculate it into the trajectory of Curiosity? [link] [comments]  |
| How would a spinning top work in lower gravity than that of Earth? Posted: 10 May 2016 02:31 PM PDT Obviously not a world-changing question, but I'm just curious. [link] [comments]  |
| Posted: 10 May 2016 05:48 PM PDT Just wanted to attempt to design a simple dc electric motor that goes really fast. This question got me curious. Why don't spinning motors accelerate to oblivion ? [link] [comments]  |
| Why does silica gel absorb water so effectively, and why only water? Posted: 10 May 2016 12:14 PM PDT I've been trying to persuade it to absorb ethyl and methyl alcohol with metal salts dissolved in it, to create potentially long-burning coloured fire fuels, but it won't have any of it, nor a few other solvents I have rattling about. So I'm wondering what is so unique about water that enables it to absorb monumental amounts? And is there a way I can make it absorb m/ethyl alcohol in the same way? Thanks for your knowledge and insights. [link] [comments]  |
| Posted: 10 May 2016 05:20 PM PDT |
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