Why are marine mammals able to keep their eyes open under water without the salt burning their eyes? |
- Why are marine mammals able to keep their eyes open under water without the salt burning their eyes?
- When you feel "full" or "satisfied" after a meal, is this due to the quantity of food eaten or the energy/nutritional value the meal gave?
- If the strong nuclear force only acts at an extremely close range, what's preventing the electromagnetic force from repelling everything away from us?
- Are genes from Mom/Dad just a coin flip at every "zip" of the DNA sequence? How far away can we deviate from 50/50?
- Question from my daughters; If I were to travel back in time could I survive in the same atmosphere as the dinosaurs and find nutritious foods that wouldn't kill me (could I consume a dinosaur)?
- Can spiders use the web of other spider species?
- How long can a human being go without eating?
- How tall could a wave potentially be? Given the correct circumstances, how tall could a wave become or is their a plateau?
- If a satellite is in a polar low earth orbit is it still protected from radiation by the van Allen belts?
- How detrimental to today's technological society if the poles flipped again?
- Do electrons in an atom have velocity?
- Do artificial light sources not intended for growing plants effect the growth or bloom cycle of plants (street lights, table lamps, etc)?
- I learned that dolphins can see well both under water as well as above the water. How does this work optically? With human eyes we’d need either swimming goggles or eyeglasses.
- During blood transfusion, does all of the blood get “replaced”. If yes, what happens if it doesn’t?
- Do horses really absolutely hate the smell of camels?
- How can emotional stress after receiving bad news cause a heart attack?
- How do elevators make emergency calls?
- How do we detect quasars, and how are they differentiated from stars?
- Do the solar panels move continuously to track the sun as the ISS moves? Or, do they set the Solar panel at an optimal position for the movement as they pass through the arc of travel? Or, do they adjust them in steps every few minutes?
- Shouldn't there be Quark stars?
- Were the sun and earth formed from the same star?
- How is ethanol fuel so much cheaper than grain alcohol?
| Why are marine mammals able to keep their eyes open under water without the salt burning their eyes? Posted: 16 Mar 2019 01:52 PM PDT |
| Posted: 17 Mar 2019 06:02 AM PDT For example can I eat a few energy bars and feel as satisfied as I would be with a larger meal with lower nutritional value? [link] [comments]  |
| Posted: 17 Mar 2019 03:30 AM PDT Might not understand enough on this but what I know so far, is that until you manage to move a particle fast enough to breach the energy barrier, the electro-magnetic force will be greater than the strong nuclear force. If this is the case, than how aren't most things (if not everything) being repelled from myself and like fly away or something? [link] [comments]  |
| Posted: 17 Mar 2019 04:12 AM PDT People often say we are "50% of Mom, 50% of Dad", wouldn't we actually be some amount above/below, like maybe I'm 45/55 and my sister would be 57/43, my brother maybe 49/51, etc? I assume there is some point like 30/70 which cannot be achieved, do we know of such a point existing (are we all a minimum of 40% one parent, or 35%, etc)? [link] [comments]  |
| Posted: 16 Mar 2019 08:38 PM PDT I'm assuming that the air may be a bit different in oxygen to nitrogen levels. And when I was asked if we could find food...I didn't have a good answer. [link] [comments]  |
| Can spiders use the web of other spider species? Posted: 17 Mar 2019 06:02 AM PDT |
| How long can a human being go without eating? Posted: 17 Mar 2019 04:06 AM PDT |
| Posted: 16 Mar 2019 04:05 PM PDT |
| Posted: 16 Mar 2019 04:51 PM PDT |
| How detrimental to today's technological society if the poles flipped again? Posted: 16 Mar 2019 05:15 PM PDT |
| Do electrons in an atom have velocity? Posted: 16 Mar 2019 04:33 PM PDT From what I've read online about this subject, it's clear that electron in its ground state doesn't really move inside an atom in a classical sense, but rather oscillates as a standing wave. However, I've also seen calculations that measure the speed of electron to be approximately 1/137 times the speed of light or 2200 km/s for Hydrogen atom (Z/137 for other elements, where Z is atomic number). I find these two notions to be contradictory and fail to understand what does the derived speed really pertain to. [link] [comments]  |
| Posted: 16 Mar 2019 02:57 PM PDT Was wondering because you always see plants that seem to be eternally in some kind of light, such as street lights, light up signs, or even headlights. Do these light sources have any effect on the growth of plants, which rely on the cycle of the sun to determine their growth and bloom cycle? [link] [comments]  |
| Posted: 16 Mar 2019 08:51 PM PDT |
| During blood transfusion, does all of the blood get “replaced”. If yes, what happens if it doesn’t? Posted: 16 Mar 2019 04:50 PM PDT |
| Do horses really absolutely hate the smell of camels? Posted: 16 Mar 2019 09:44 AM PDT Herodotus reports (I,80) that Cyrus used camel riders to destroy the Lydian empire because horses hated their smell and the Lydian knights were forced to dismount. Can we trust him on that one? [link] [comments]  |
| How can emotional stress after receiving bad news cause a heart attack? Posted: 16 Mar 2019 03:22 PM PDT |
| How do elevators make emergency calls? Posted: 16 Mar 2019 02:07 PM PDT Every elevator has an emergency button that connects you to someone to talk to. How is the connection enabled? [link] [comments]  |
| How do we detect quasars, and how are they differentiated from stars? Posted: 16 Mar 2019 04:29 PM PDT |
| Posted: 16 Mar 2019 11:21 AM PDT |
| Shouldn't there be Quark stars? Posted: 16 Mar 2019 02:08 PM PDT Since the implosion of the massive stars generally moves down the scale of atomic and subatomic particles, shouldn't there be Quark stars somewhere after the stage of neutron stars? Since we know a little bit about Quarks could we calculate what such a star might be, how it would look, some of the possible effects it would have on its surroundings? And could we theoretically predict what kind of gravity pressures Quark stars may withstand? Or even what kind of gravity fields it could create? Seems a bit strange that stars go Supernovae then into neutron stars - and then straight into black holes. Jumping over the hypothetical quark star stage. Did anyone explore this possibility or is the answer - we basically dont know? [link] [comments]  |
| Were the sun and earth formed from the same star? Posted: 16 Mar 2019 08:19 PM PDT |
| How is ethanol fuel so much cheaper than grain alcohol? Posted: 16 Mar 2019 11:52 AM PDT With E85 at $2/gal, and E15 at $2.33/gal, the pure Ethanol is about $1.90/gal for pure (meaning no water) Ethanol. Grain alcohol with 95% purity (5% water) is $18.67 per liter from shopping online. Even assuming it was pure ethanol (again meaning no water) that would be $87.06/gal. And with my understanding of distillation, getting anything above 96% ethanol:water requires additional processing due to the azeotrope (which I'm guessing is why grain alcohol stops at 190 proof). How is grain alcohol over 40x more expensive than ethanol fuel? I understand there is filtering for taste, individual bottling, human consumption requirements and alcohol taxes, as well as subsidies for ethanol as fuel, but do these really combine to such a huge price difference? [link] [comments]  |
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