If we return to the moon, is there a telescope on earth today strong enough to watch astronauts walking around on the surface? |
- If we return to the moon, is there a telescope on earth today strong enough to watch astronauts walking around on the surface?
- If a thermodynamic cycle on a Pressure-Volume diagram has internal irreversibilities, what does the area enclosed by the cycle represent?
- Significance of Feynman Diagrams?
- Does sensory memory run constantly or do you only sometimes bring sensory info into sensory memory?
- Do we integrate DNA / RNA from our food into our own genome? If so, how and what are possible consequences?
- Are anterograde amnesia, retrograde amnesia, proactive, and retroactive interference encoding failure, storage failure, or retrieval failure?
- After you close your eyes, can you still "see" the image brought in by your iconic sensory memory for the tenths of a second that iconic memory lasts?
- What exactly causes the headache and nausea from a hangover?
- Are people becoming more lactose and gluten intolerant than previous generations?
- At what point in development is the brain and/or being conscious? How does this early state of consciousness compare to a fully developed mind?
- Why does the Mid Atlantic Ridge have transform boundaries? Why is it jagged?
- If water erodes coasts, why is there still land? How does land grow back into sea?
- How does the radiation from Fukushima stay in the water after the water is removed?
- How do non-polar molecules pass through the cell membrane via diffusion?
| Posted: 22 Sep 2019 06:36 AM PDT |
| Posted: 22 Sep 2019 07:05 AM PDT When a cycle is internally reversible, the area enclosed by its P-v or T-s diagram is the net work, but what about when the cycle is internally irreversible? Is it net useful work plus work wasted on irreversibilities such as friction? [link] [comments]  |
| Significance of Feynman Diagrams? Posted: 22 Sep 2019 06:56 AM PDT Okay So Feynman Diagrams are used to portray particle interactions theoretically. But I just cannot understand the significance of these diagrams. How do these diagrams actually simplify the interaction process ? How difficult would it be to explain interactions if we did not have these diagrams? If these diagrams do not represent reality how do these really help? [link] [comments]  |
| Does sensory memory run constantly or do you only sometimes bring sensory info into sensory memory? Posted: 22 Sep 2019 06:04 AM PDT For example if you closed your eyes or plugged your ears at a random moment, would you be guaranteed to have sensory information in your sensory memory? [link] [comments]  |
| Posted: 22 Sep 2019 03:24 AM PDT My flatmate recently told me that his concern with GM Food is the integration of it's DNA into our own. I first thought that what he meant is that we break down the DNA and use its components as nutrients for our cells but then I found some studies that talk about miRNA? And then another one that says that those studies might have been executed poorly and the results stem from contamination as this study suggest. So, what's the current understanding? Does our DNA get changed in a meaningful way depending on what we eat? [link] [comments]  |
| Posted: 22 Sep 2019 06:34 AM PDT |
| Posted: 22 Sep 2019 06:06 AM PDT |
| What exactly causes the headache and nausea from a hangover? Posted: 21 Sep 2019 08:07 AM PDT I know it's because we're dehydrated but what exactly does the dehydration do to us to cause the symptoms? [link] [comments]  |
| Are people becoming more lactose and gluten intolerant than previous generations? Posted: 22 Sep 2019 12:11 AM PDT It seems that nowadays more people cannot consume cow milk or are gluten intolerant. Is this just a fashion trend, have humans always been like this or are human bodies changing? [link] [comments]  |
| Posted: 21 Sep 2019 11:26 PM PDT |
| Why does the Mid Atlantic Ridge have transform boundaries? Why is it jagged? Posted: 21 Sep 2019 03:28 PM PDT I was reading this book The Story of Earth and it mentioned how when the mid Atlantic ridge was discovered that it was very odd that it wasn't a continuous mountain range. Since it is just spewing out magma and causing seafloor spreading, why does it become displaced to the west or east when looking at it from north to south? [link] [comments]  |
| If water erodes coasts, why is there still land? How does land grow back into sea? Posted: 21 Sep 2019 08:12 AM PDT |
| How does the radiation from Fukushima stay in the water after the water is removed? Posted: 21 Sep 2019 12:34 PM PDT My understanding is that radiation is just another part of the electromagnetic spectrum, so I think of it as behaving like light but worse on the potential damage scale than say UV. If this is correct, then radiation would not stay in the water any more than light would stay in the water after I removed the water from the area the light shines on. I imagined there would be some barrier between the reactor fuel and the water used for cooling. If so, then I can't imagine how the radioactive particles could contaminate the water. Does the water remain radioactive if they dump it in the ocean? If so, how does that work? [link] [comments]  |
| How do non-polar molecules pass through the cell membrane via diffusion? Posted: 21 Sep 2019 06:11 AM PDT I understand that small polar molecules can pass through the lipid bilayer, but from my understanding, any non-polar molecule can pass through the lipid membrane via diffusion (at least how it was explained by my prof) . How? Isn't the inside of the lipid bilayer hydrophobic? Wouldn't that prevent passage of non-polar molecules, especially any big ones? I've tried Googling articles but I can't seem to find anything to explain this. [link] [comments]  |
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