Can urine leak out of the urinary bladder and into the surrounding cells since bladders are semipermeable membranes?

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• Can urine leak out of the urinary bladder and into the surrounding cells since bladders are semipermeable membranes?
• [Is It Possible to Magnetize Dirt, Wood, or Other NONMAGNETIC Materials?]
• Astrogeologists, why does mars still have rivers that were formed millions of years ago? why havent they eroded away due to dust storms and winds?
• Bifurcated (2) needles for vaccination?
• Are there cubic energy formulas?
• How do pressurised gases or liquids (EG in a gas canister or a rocket fuel tank) remain pressurised when the amount of said gas or liquid is decreasing (For instance as rocket fuel is being used up in a launch)?
• There are studies in which the right hemisphere reacts to a linguistic stimulus without conscious awareness. But how can it do that without being able to process language?
• Is bid-sniping an effective strategy in auctions?
• How do we know the starting quantities of radioactive elements when performing radioactive dating?
• What exactly occurs in our brains that puts us asleep?

Can urine leak out of the urinary bladder and into the surrounding cells since bladders are semipermeable membranes? Posted: 28 Nov 2020 06:03 AM PST I learnt that in biology that a thoroughly washed urinary bladder of a pig can be used for osmosis. This means that the bladder is semipermeable membrane. So, if there is a higher concentration of solutes in the surrounding cells, there is a possibility of the water(solvent) can leak out of the bladder and into the surrounding cells. I may be wrong, and my train of thoughts might have an incorrect link, please correct me. submitted by /u/Variety_Creepy_1303 [link] [comments]

[Is It Possible to Magnetize Dirt, Wood, or Other NONMAGNETIC Materials?] Posted: 27 Nov 2020 02:27 PM PST If you can create a strong enough negative current, can you push the electrons away from wood/dirt/soil's nucleus? (Since the electrons move away from the negative charges rendering it positive and causing it to magnetize to the charge). Also i know that nonmagnetic materials like wood want to keep their electrons close to their nucleus which is why you cant move them with magnets like metal (which has flowing electrons). So basically is the only thing you need to magnetize something nonmagnetic like dirt for example a super powerful negatively charged current from a power source. Or is it impossible to pull/push the electrons of a nonmagnetic material. If so, are their any other ways to magnetize/push away nonmagnetic materials. I heard that someone used a magnet to levitate strawberries. Thanks! submitted by /u/EnderQuakePlayz [link] [comments]

Astrogeologists, why does mars still have rivers that were formed millions of years ago? why havent they eroded away due to dust storms and winds? Posted: 27 Nov 2020 02:32 PM PST submitted by /u/Bee_HapBee [link] [comments]

Bifurcated (2) needles for vaccination? Posted: 27 Nov 2020 10:36 AM PST Why was this type of needle used for small pox? Have 2 needles ever been used on other vaccinations? Thank you. submitted by /u/12dogs4me [link] [comments]

Are there cubic energy formulas? Posted: 27 Nov 2020 08:39 AM PST Like potential energy is mgh, a linear function, movement energy is 0.5mv2, a squared function. Is there a function for energy that grows faster? Maybe a cubic or an exponential one? submitted by /u/Agasthenes [link] [comments]

How do pressurised gases or liquids (EG in a gas canister or a rocket fuel tank) remain pressurised when the amount of said gas or liquid is decreasing (For instance as rocket fuel is being used up in a launch)? Posted: 27 Nov 2020 11:29 AM PST submitted by /u/Mr_Hu-Man [link] [comments]

There are studies in which the right hemisphere reacts to a linguistic stimulus without conscious awareness. But how can it do that without being able to process language? Posted: 27 Nov 2020 06:14 PM PST From a Nature article: Gazzaniga developed what he calls the interpreter theory to explain why people — including split-brain patients — have a unified sense of self and mental life3. It grew out of tasks in which he asked a split-brain person to explain in words, which uses the left hemisphere, an action that had been directed to and carried out only by the right one. "The left hemisphere made up a post hoc answer that fit the situation." In one of Gazzaniga's favourite examples, he flashed the word 'smile' to a patient's right hemisphere and the word 'face' to the left hemisphere, and asked the patient to draw what he'd seen. "His right hand drew a smiling face," Gazzaniga recalled. "'Why did you do that?' I asked. He said, 'What do you want, a sad face? Who wants a sad face around?'." The left-brain interpreter, Gazzaniga says, is what everyone uses to seek explanations for events, triage the barrage of incoming information and construct narratives that help to make sense of the world. But how did the right hemisphere process the word "smile"? submitted by /u/UnderwaterDialect [link] [comments]

Is bid-sniping an effective strategy in auctions? Posted: 27 Nov 2020 01:46 PM PST Bid-sniping defined as strategy to place a bid very near to the end of the auction.Does this differ online/offline, with auction system, with professionals/non-professionals? It would be especially interesting to see scientific evidence from popular platforms like ebay. I already found this from 2000, I wonder if there is any newer research. submitted by /u/sandinhead [link] [comments]

How do we know the starting quantities of radioactive elements when performing radioactive dating? Posted: 27 Nov 2020 08:23 AM PST In the book "Fossil Men, The Quest for the Oldest Skeleton and the Origins of Humankind", Kermit Pattison says that (emphasis mine) Potassium-40 decays into argon-40, and by comparing the ratio between the two, scientists could measure the passage of time since the rock formed. Before a volcanic eruption, all argon-40 leaks out of the hot magma and effectively resets the stopwatch to zero. The accumulation of argon-40 within the cooled ash or lava provides a measure of time, like sand within an hourglass. The more argon, the older the rock. How do we know that all the argon-40 leaks out prior? Knowing the starting amount is key to estimating the age, and saying there was 0 to start is convenient but is it accurate? The same question could be posed for other radioactive decay dating techniques (i.e. carbon-14). Thanks for any insight! submitted by /u/Jericho_Crusher [link] [comments]

What exactly occurs in our brains that puts us asleep? Posted: 26 Nov 2020 02:18 PM PST submitted by /u/_Raspootin_ [link] [comments]

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