Is it possible for a planets moon to share an atmosphere with the planet? |
- Is it possible for a planets moon to share an atmosphere with the planet?
- Sperm Whales have sockets in the top of their mouths for their bottom teeth, are these pre-formed or created by the teeth?
- What does the "moment" in moment of inertia mean?
- Why are SpaceX landing at sea rather than land?
- How much power can an Optical Fiber carry?
- Why do neutrinos oscillate but electrons don't?
- Is the solar wind significantly charged? Does this charge (if it exists) in any way affect spacecraft?
- How does one determine the volume of water vapor per unit of atmosphere?
- Does a single solar mass black hole exhibit the same gravity effects as the sun?
- Is Dry Ice Hydrophobic?
- How is the rate of isostatic rebound calculated?
- When you cast aluminum ingot it shrinks when cooled. Why does it happen in the middle of the casting?
- How to assume material wear?
- Why do they say to avoid the sun between 10 and 3 (or 11 and 4 daylight savings time)? Shouldn't the hours be symmetric about noon, when the sun is at its peak?
- How does an expanding universe not violate the "Conservation of ... laws"?
- If a Planck unit is the smallest possible unit, how would this affect rotation? Would this affect your ability to aim at something an extremely long distance away?
- How does melanin protect us?
- Could you carbon date something from the future?
- Some Cameras in space appear to degrade quickly over time, why is this?
- How does a plant seed know which way is "up"?
- When I twirl a rope at a high speed, where does that "swoosh" noise come from?
- If the universe is 14 billion years old and the sun is 4.5 billion years old. Was the universe 9.5 billion years old when the sun was born?
- Why does plaster of Paris heat up as it hardens?
| Is it possible for a planets moon to share an atmosphere with the planet? Posted: 29 May 2016 11:13 AM PDT If a planet's atmosphere extends far enough, and one of the planets moons were close enough, could it share the planet's atmosphere? [link] [comments]  |
| Posted: 29 May 2016 02:53 PM PDT Sperm Whales have sockets in the top of their mouths for their teeth, are these pre-formed or created by the teeth? There are a lot of crooked teeth I'm curious if those just don't fit or if they make their own sockets somehow. Example: http://i.imgur.com/5OqSMhj.jpg [link] [comments]  |
| What does the "moment" in moment of inertia mean? Posted: 30 May 2016 05:39 AM PDT |
| Why are SpaceX landing at sea rather than land? Posted: 29 May 2016 10:46 AM PDT I'm thinking a land landing would help reduce the risks of weather/waves and the transport to and from the touchdown spot. Why have they chosen a barge rather than a large empty field? I was thinking it would provide mobility in choosing a landing site, but this has never been a factor before in space travel, and they're launching the rocket from the same place regardless. Besides, there's no time to move the barge post launch I'm guessing. [link] [comments]  |
| How much power can an Optical Fiber carry? Posted: 30 May 2016 04:53 AM PDT For example if we wanted to transmit a laser beam or concentrated solar light how much power can we transmit before the optical fiber heats up and melts? [link] [comments]  |
| Why do neutrinos oscillate but electrons don't? Posted: 30 May 2016 12:41 AM PDT Are there any interesting theories as to why neutrinos would oscillate but not electrons given that they're both leptons? [link] [comments]  |
| Posted: 30 May 2016 03:29 AM PDT |
| How does one determine the volume of water vapor per unit of atmosphere? Posted: 29 May 2016 11:15 AM PDT |
| Does a single solar mass black hole exhibit the same gravity effects as the sun? Posted: 29 May 2016 11:09 PM PDT I imagine they are similar at the distance we are from our sun. But it also seems like if I got closer, at a certain point, things would be different. Where would that point be? For example, if I'm in a ship, when would I stop experiencing the gravitational effects of a regular star and start experiencing the unique gravitational effects of a black hole? [link] [comments]  |
| Posted: 29 May 2016 08:42 PM PDT It's exactly what the title suggests. Wouldn't it be considered hydrophobic because it never comes in contact with the water? looking at video of someone dumping it into water, it is clear there is a layer of gas surrounding the dry ice at all times keeping it from ever contacting the water. So, doesn't this mean it is hydrophobic. [link] [comments]  |
| How is the rate of isostatic rebound calculated? Posted: 30 May 2016 04:48 AM PDT I'm reading a textbook for a university course I'm taking and it refers to isostatic rebound i.e. land mass that was once covered in ice sheets rising once the ice sheet retreats. The concept is easy enough to understand, but the textbook then goes on to state "....depressed the Earth's surface, and even though they retreated around 11,500 years ago, the land is still rising due to a process known as isostatic rebound. Since the ice retreated, land in the north of the British Isles, which was covered by thick ice sheets, has gradually continued to rise, while that in the south, which had no ice cover, has been tilting down, causing a relative rise in sea level in this area at a rate of about 0.15 of a metre per century." My question is how is this calculated so accurately? [link] [comments]  |
| Posted: 29 May 2016 07:52 PM PDT I feel like this paper might explain it, but can someone EILI5? [link] [comments]  |
| Posted: 30 May 2016 04:16 AM PDT Hello! My question is - how to assume wear of the material over time? I.e.1 - I have a pipe. In time pipe's walls can get thinner due to wear. But how to approximate rate of the wear process over the years? I.e.2 - I have a steel bowl or funnel. I pour granules or flings of a softer metal (let's take copper as example). What can happen to the funnel over time? In theory copper is much softer so it can't even make a scratch. I have found scientific articles on wear with experimental data, but I suppose this is so case-specific, that I can't make any extrapolations or assumptions for other cases based on that. Or can I? [link] [comments]  |
| Posted: 30 May 2016 06:41 AM PDT |
| How does an expanding universe not violate the "Conservation of ... laws"? Posted: 30 May 2016 02:33 AM PDT |
| Posted: 30 May 2016 04:36 AM PDT You'll have to excuse my poor understanding of Physics, I've just been playing EVE Online and had a thought regarding planck lengths while I was aligning to a gate. If there is a limit to length in terms of smallest size, would this affect your ability to aim at something an extremely long distance away, due to rotation? For example, if you pointed a telescope at an object that was an extreme number of lightyears away, would you only be able to "snap" to a point eitherside of the object if it fell inbetween two plank lengths of rotation? Am I misunderstanding the way in which Planck lengths work? [link] [comments]  |
| Posted: 29 May 2016 11:28 AM PDT |
| Could you carbon date something from the future? Posted: 30 May 2016 12:09 AM PDT I was watching Terminator guys! And I started wondering whether you'd be able to date something from the future [link] [comments]  |
| Some Cameras in space appear to degrade quickly over time, why is this? Posted: 29 May 2016 06:24 AM PDT In videos such as: https://www.youtube.com/watch?v=JiV0V8t4DYU You can clearly see artifacts on the camera appearing over time, from dots to a large line of missing pixels. What causes this? Is it just stray radiation? Why does this not effect some other cameras? [link] [comments]  |
| How does a plant seed know which way is "up"? Posted: 29 May 2016 03:07 PM PDT I guess since they are buried deep in the ground with no sunlight or without any other way of knowing which way it should grow to get the surface. [link] [comments]  |
| When I twirl a rope at a high speed, where does that "swoosh" noise come from? Posted: 29 May 2016 04:26 PM PDT |
| Posted: 29 May 2016 05:26 PM PDT |
| Why does plaster of Paris heat up as it hardens? Posted: 29 May 2016 06:31 PM PDT |
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