How are mountains formed in non-tectonic planets? |
- How are mountains formed in non-tectonic planets?
- What causes the global cooling after a Milanković cycle?
- Why are Ice and Diamond slippery but Glass and dry ice not?
- At wich point a sound wave becomes classified as a shock wave?
- Did life on Earth originate from a single location?
- Since all galaxies are moving can we theoretically map and trace back their paths to find a common point of origin (i.e. big bangs’ “ground zero”)?
- Why are the rings of Saturn streaked?
- Is intelligence inherited or environmental?
- What causes flesh to rot?
- Do the parasympathetic and sympathetic nervous systems utilize different nerves? Are they made of distinct structures?
- Which plant have the highest oxygen production to size ratio ?
- How does recharging a battery work?
| How are mountains formed in non-tectonic planets? Posted: 22 Dec 2019 04:14 PM PST |
| What causes the global cooling after a Milanković cycle? Posted: 23 Dec 2019 03:47 AM PST Hey, I'm reading about the climate change, and one prominent argument is the connection between global CO² concentration and temperature. Afaik the temperature increases periodically because of Milanković cycles, which causes the CO² levels to rise, which in tern increases the temperature further. The question I can't seem to find an answer to is this: If the Milanković cycle only kicked of the feedback-loop between temperature and CO² and both are at very high levels, what causes them to decrease again after a certain amount of time? Thanks! [link] [comments]  |
| Why are Ice and Diamond slippery but Glass and dry ice not? Posted: 23 Dec 2019 03:43 AM PST I understand that ice has a surface layer that's much more mobile (though not really liquid water) which makes it very slippery. This, so I am told, is due to it being a polar covalent molecular solid. Fair enough. What I don't understand then is why Diamond is even more slippery, when it is a monatomic non-molecular, non-covalent crystalline solid. It can't be simply smoothness. Optical quality glass isn't remotely slippery, yet rough, sharp, opaque ice created from freezing rain is still slippery even against other ice. Why is rough ice slippery, diamond slippery, but glass not? And how about dry ice? It's not nearly as slippery as water ice as long as the thing touching it is also cold. What about metals? Aluminium (with the oxide layer) isn't slippery. Nor is gold, steel, copper, Zinc, Lead, Alkali metals, etc. So what makes ice and diamond slippery and other smooth, solid surfaces not? Is there some kind of rule for what materials will be slippery? [link] [comments]  |
| At wich point a sound wave becomes classified as a shock wave? Posted: 22 Dec 2019 08:38 AM PST |
| Did life on Earth originate from a single location? Posted: 22 Dec 2019 09:47 AM PST |
| Posted: 22 Dec 2019 04:48 AM PST |
| Why are the rings of Saturn streaked? Posted: 22 Dec 2019 07:21 AM PST The rings are made from rocks and gasses, so I would think it would look like a cloud of brown rocks flying around, are the gasses colored? How is it so flat? [link] [comments]  |
| Is intelligence inherited or environmental? Posted: 21 Dec 2019 11:08 PM PST |
| Posted: 22 Dec 2019 07:52 AM PST Is the cause internal, external, a chemical reaction? [link] [comments]  |
| Posted: 21 Dec 2019 08:59 PM PST |
| Which plant have the highest oxygen production to size ratio ? Posted: 21 Dec 2019 03:03 PM PST |
| How does recharging a battery work? Posted: 21 Dec 2019 11:05 PM PST Since matter cannot be destroyed where do the spent atoms go. I may have a misunderstanding of how chemical bonds are used but I don't really understand the concept of how recharging something that is based off of chemical reactions. Can you simply redo the reactions that produced the energy by adding more electrons? [link] [comments]  |
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