If I went back 100,000 years and mated with a human, would we produce any offspring? How far would I need to go back before I found an ancestor that is incompatible with modern humans? |
- If I went back 100,000 years and mated with a human, would we produce any offspring? How far would I need to go back before I found an ancestor that is incompatible with modern humans?
- Does the expansion of the universe cause time dilation?
- Emotions like anger are often conceptualized as being a kind of measurable quality: we either "vent" or "repress" anger, and some people are said to hold a lot of built up rage. How exactly does that process work? If anger is not "vented" effectively, does it really just linger and compound?
- Are there any ancient constellations that no longer exist due to the Suns orbit around the Galaxy or just the stars moving relative to us in general?
- If parity was somehow not conserved in electromagnetism the way it isn't in the weak interaction, how would our world be different?
- Can nitrogen be used in home food preservation?
- Why doesn't glue stick to the inside of the bottle?
- Can someone explain why low carbon steel is malleable, talking about the micro structure?
- Do users of languages that don't use Latin runes (Chinese, Arabic, etc.) suffer from semantic satiation?
- Can a non-invertible one-to-one function exist?
- Is it possible for a particle to "decay" into itself?
| Posted: 12 Dec 2015 06:04 AM PST |
| Does the expansion of the universe cause time dilation? Posted: 11 Dec 2015 08:56 PM PST If space and time are part of the same thing, does the expansion of the universe make time expand to? If so, does it make time slow down, similar to the time dilation around a black hole? [link] [3 comments]  |
| Posted: 11 Dec 2015 07:49 PM PST |
| Posted: 12 Dec 2015 06:37 AM PST |
| Posted: 12 Dec 2015 12:29 AM PST |
| Can nitrogen be used in home food preservation? Posted: 12 Dec 2015 06:48 AM PST Once you open a bag or container of anything edible (except honey), it starts a process of getting stale / spoiled / moldy / rotten etc. However, before you open it, there is usually an inert gas or something in the container to prevent the spoiling process. If I opened a container of food (lets use a bag of chips as an example) and displaced all the oxygen in it with nitrogen, would that preserve the product like it was just bought? [link] [1 comment]  |
| Why doesn't glue stick to the inside of the bottle? Posted: 11 Dec 2015 09:45 PM PST Glue will stick to pretty much anything outside of the bottle, and will even clog the opening or nozzle of the bottle, but it doesn't stick to the inside of the bottle and can go years without curing inside of the bottle. How does that work? [link] [6 comments]  |
| Can someone explain why low carbon steel is malleable, talking about the micro structure? Posted: 12 Dec 2015 04:36 AM PST I've researched for ages and I can only find the properties but with no simple explanation. I was thinking that it was to do with the carbon pinning dislocations therefore the less carbon the more free dislocations but I'm not sure. [link] [3 comments]  |
| Posted: 11 Dec 2015 11:55 AM PST Stare at a word for too long and it loses all meaning. Does this happen in languages with different rune systems? [link] [6 comments]  |
| Can a non-invertible one-to-one function exist? Posted: 11 Dec 2015 09:59 AM PST |
| Is it possible for a particle to "decay" into itself? Posted: 11 Dec 2015 04:37 PM PST For instance, an electron would decay into an electron, or a photon into a photon? Would this violate any fundamental laws of physics? Has it ever been observed (or even possible to observe)? [link] [8 comments]  |
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