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Monday, May 7, 2018

How is antimatter stored?

How is antimatter stored?


How is antimatter stored?

Posted: 06 May 2018 08:50 AM PDT

If antimatter explodes when in contact with normal matter, how is it stored? I'm guessing in a vacuum, but it must be in a container of some sort? And how do they move it? Do they use magnets?

submitted by /u/sammiali04
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What's the reason behind starting naming of electron shells from K, why not from any other letter?

Posted: 06 May 2018 08:31 AM PDT

Is it pure randomness or was there an actual reason? Similarly, why name the sub shells s,p,d,f?

submitted by /u/_Spaceman__Spiff__
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How does poultry meat spoil/decompose differently than red meat? Isn't decomposing among all meats the same?

Posted: 06 May 2018 09:25 AM PDT

How is the Lorentz Factor in special relativity derived?

Posted: 06 May 2018 08:35 AM PDT

Specifically, can it be derived mathematically from the postulates of special relativity or does it require physical observation of space-time dilation?

submitted by /u/EvermoreAlpaca
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What is the significance of magnesium with regards to depression?

Posted: 06 May 2018 05:33 PM PDT

Can an earthquake cause a volcanic eruption?

Posted: 06 May 2018 05:01 PM PDT

For instance, a major fault line in California near the Long Valley Caldera were to have a major tectonic quake, could it cause that caldera to erupt? (to the point that it's a super eruption, to be specific.)

submitted by /u/dotSukhoi
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How did Newton actually invent Calculus?

Posted: 06 May 2018 07:09 AM PDT

If you were to collide two pieces of Uranium 235 in the Large Hadron Collider, what would happen?

Posted: 06 May 2018 04:08 PM PDT

What is the decimal interpretation of bit-wise AND, OR, and XOR?

Posted: 06 May 2018 09:41 AM PDT

Left and right shifts, that is < and >, can be easily interpreted as dividing and multiplying by 2. This is the same as shifting a decimal number, say 16, to the left. You multiply by 10 and get 160.

What would be a similar way to explain the numerical sense of AND, OR, and XOR operators?

Similarly, all three operators are binary operators, are there any similar decimal operators, even if theoretical?

submitted by /u/omaxx
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Are there planets outside of galaxies?

Posted: 06 May 2018 01:54 PM PDT

Do we know of any planets that arent in galaxies or dont orbit stars? Could planets form this way?

submitted by /u/renorhino83
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Is the rate at which a substance cools down proportional to its heat capacity?

Posted: 06 May 2018 03:14 PM PDT

How do we decide whether or not a species is extinct?

Posted: 06 May 2018 11:25 AM PDT

How do electronics get through the ionosphere?

Posted: 06 May 2018 06:48 PM PDT

Hello there. I was just wondering how electronics on shuttles and other payload delivery vehicles exit the ionosphere without damaging electronics. Thank you!

submitted by /u/knot2appetizing
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Why does ice steam even when the air is warmer?

Posted: 06 May 2018 06:23 PM PDT

Lunar dust on Earth's moon is jagged because there is no weather to wear it into roundish shapes. But why is the surface dusty? Why isn't it one solid rock?

Posted: 06 May 2018 11:53 AM PDT

How long does it take to actually run an experiment on the LHC? {{physics}}

Posted: 06 May 2018 05:00 PM PDT

Ignoring any prep time and post run data analysis how long does it take the actual experiment to run, are we talking a few seconds or a couple of hours?

submitted by /u/90Sr-90Y
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Why is Jupiter so much larger than Mars, Earth, Mercury and Venus?

Posted: 06 May 2018 01:10 PM PDT

How does statistics arise in quantum mechanics, since the Schroedinger's equation is pretty deterministic concerning how a wave function evolves with time?

Posted: 06 May 2018 09:19 AM PDT

What is the CO₂ point of “no-return”?

Posted: 06 May 2018 01:07 PM PDT

We've heard of atmospheric thermal runaway happening when Carbon dioxide (and other greenhouse gasses like water vapour, methane,...) concentrations increase; but specifically how many ppm will result in a breakdown in carbon capture? I feel knowing this is better than a doomsday clock as it finitely shows our proximity to irrecoverable peril.

Thanks!

submitted by /u/Kadnify
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Sunday, May 6, 2018

When dolphins open their eyes above water, are things blurry like when humans open their eyes below water?

When dolphins open their eyes above water, are things blurry like when humans open their eyes below water?


When dolphins open their eyes above water, are things blurry like when humans open their eyes below water?

Posted: 05 May 2018 01:32 PM PDT

What adaptations do dolphins and other marine mammals have to see clearly under water and how does that affect their vision above water?

submitted by /u/laughs_at_things_
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Does a simple fire emit ultraviolet light? lf no, then how does our sun do so? Ks it a matter of thermonuclear fusion, or something else?

Posted: 06 May 2018 04:41 AM PDT

Is the volcanic and geological activity of the past few years unusual?

Posted: 05 May 2018 05:42 PM PDT

Activity in Yellowstone, Greenland, and in multiple places around the world.

Hawaii now has a new volcanic formation with recent activity...

It feels abnormal. How much of this feeling is based on science, and how much is media hysteria?

Also, what is possibly causing this (percieved) increase in activity?

submitted by /u/rhboomer
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How did Ice Ages and extremely hot periods end in history?

Posted: 06 May 2018 05:32 AM PDT

So I hear a lot about positive feedback loops: ice disappears, less heat is reflected back into space, more CO2, more heat is trapped, ice melts, etc.

And the other way around: earth gets colder, ice forms, more heat is reflected, more co2 trapped in ice, less heat is trapped, ice forms etc.

So how did these loops break in earths history?

submitted by /u/robj185
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Since the ocean is so vast and fish are pretty mobile, how do we determine where a certain kind of fish is "from". Do they have multiple geographic homes?

Posted: 05 May 2018 08:55 AM PDT

I am sure temperature, latitude, and depth are some of the pieces of relevant info, but can we really say where a fish's "home" is?

submitted by /u/pileofcats
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How many calories do insects usually consume in a day?

Posted: 05 May 2018 06:20 PM PDT

It has to be such a small amount but I'd imagine it's very easy to overeat if everything around you is massive right?

submitted by /u/StrategyHog
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How does the stomach let through food and water, but not the acid?

Posted: 05 May 2018 02:43 PM PDT

Why are there a lot more right-handed people than left-handed people?

Posted: 05 May 2018 06:30 PM PDT

About an 80/20 split between right and left?

submitted by /u/Zeranvor
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Why must two quantum mechanical observables have their commutator equal zero if they are to be simultaneously observable?

Posted: 05 May 2018 08:32 AM PDT

Why is MCT (Medium Chain Triglyceride) great for health but Triglycerides are bad?

Posted: 06 May 2018 06:00 AM PDT

I've been researching Ketogenic Diet & Intermittent Fasting. If that gives any context as to which mindset the speakers were coming from

submitted by /u/dafckingman
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What negative effects (if any) are we causing by increasingly introducing antibacterial products to our water waste?

Posted: 05 May 2018 11:25 PM PDT

I understand our water waste leads to sewage treatment plants before being re-released into the environment, but does this process insured that these products never enter the environment?

submitted by /u/iduro
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Why does the sky usually look green during a lightning and thunderstorm?

Posted: 05 May 2018 04:38 PM PDT

Why are bruised spots on fruit sweeter than the rest of it?

Posted: 05 May 2018 09:29 AM PDT

What is a Quantum Mechanical understanding of absolute zero?

Posted: 06 May 2018 04:24 AM PDT

Classically, the temperature, of some peice of matter, is the average kinetic energy of all the particles that make it up. So absolute zero is just when the every particle has zero kinetic energy. But from Heisenbergs uncertainty principal we know that uncertainty in momentum cannot be zero, thus restricring momentum of a particle to some finite value, thus restricring kinetic energy to some finite value... and you can see where I'm going.

submitted by /u/Tom_ginsberg
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The victims of the Mt. St. Helens volcanic explosions: what happened to the bodies that were never found?

Posted: 05 May 2018 04:16 PM PDT

I understand many of the victims were exposed to high wind, high heat, and flying debris; any of which could have been fatal. Volcanologist David Johnston was quite a ways from the volcano, but was never found. Harry R. Truman lived near Spirit Lake and was covered in something like 150 feet of mud. Is it possible that many of the victims became fossilized? Has there been any attempts to uncover victims or structures?

submitted by /u/iguanarchist
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What precautions will be taken by the Mauna Kea Observatories in the event of a volcanic eruption?

Posted: 05 May 2018 02:31 PM PDT

A nearby volcano, Kīlauea, is starting to show activity, will that cause problems with ash, dust, earthquakes, etc at the Mauna Kea Observatories?

submitted by /u/sexrockandroll
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Is it possible to gain control over the muscles in the iris?

Posted: 05 May 2018 04:49 PM PDT

Do mosquitoes do anything for the ecosystem?

Posted: 05 May 2018 09:17 PM PDT

What casuses air to diverge jn the upper troposphere to cause low pressure?

Posted: 05 May 2018 11:19 PM PDT

Can't find any useful info on this so far. I just want to know the scientific reason behind diverging air high up which creates lower pressure near the surfice as warm air rises to replace the air leaving the column

submitted by /u/getsomebrodie
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If plants ‘Breathe in’ CO2 for photosynthesis then use it in respiration for energy, how do they get rid of the CO2 that they gained from the air?

Posted: 05 May 2018 06:20 PM PDT

Photosynthesis is endothermic 6(CO2)+6(H20) => C6H12O6 + 6(O2)

Respiration is exothermic C6H12O6 + 6(O2) => 6(CO2)+6(H20)

I would guess the extra carbon is used to build cells as wood is combustible hence has carbon in it, but I'm not sure.

submitted by /u/IOW_Lag
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Do all neutron stars have strong magnetic fields?

Posted: 05 May 2018 08:42 PM PDT

Saturday, May 5, 2018

How did flowers and plants reproduce before there existed bees?

How did flowers and plants reproduce before there existed bees?


How did flowers and plants reproduce before there existed bees?

Posted: 04 May 2018 02:54 PM PDT

Wow! I didn't expect this to blow up but thank you for all the answers!

Also, I was watching the bee movie when this question popped into my head;)

submitted by /u/LeanderD
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I get that bees are essential to an ecosystem, but do wasps/hornets do literally anything useful in that sense?

Posted: 05 May 2018 04:51 AM PDT

Has any non-human species succeeded in domesticating another species? Not mutualism, but actual domestication?

Posted: 05 May 2018 05:32 AM PDT

The domesticated species cannot survive or tends to die off without the other? I believe there is a pairing of ants/aphids that is close. Not looking for cleaner fish or mutually beneficial relationships, but a distinctly one-sided relationship. One species is controlling and manipulating the other species' population and behavior.

submitted by /u/Dragonqueencr
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What's the difference between the piezoelectric effect vs what we know about time crystals?

Posted: 04 May 2018 11:03 AM PDT

I just read this article about Yale university discovering a new time crystal in a children's crystal growing kit. As described in the article, time crystals change their state when "exposed to an electromagnetic pulse". Since minerals like Quartz also change state when exposed to a electromagnetic pulse, how are they different? Is it just the arrangement of the molecules in the crystal that are different? or is it purely the result of the state change that is different? Does anyone know if the two are linked in some way(the piezo and time crystal effect)?

submitted by /u/monostereo
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Instead of waiting for an eruption of a vulcano, why not drill a hole in it to release the pressure?

Posted: 05 May 2018 03:39 AM PDT

Why is it recommended to completely finish an oral antibiotic prescription, while topical antibiotics (ex. polysporin and other antibiotic creams) can be applied as needed?

Posted: 05 May 2018 07:03 AM PDT

Hello! I understand that when taking oral antibiotics, you're strongly recommended to finish the entire prescription, since finishing early could allow resistant survivors to reproduce and cause an antibiotic-resistant infection. However, with topical antibiotics like creams and ointments, it's recommended to apply liberally as needed either with or without a bandage. Is there a reason that topical antibiotics can be used only as needed? Wouldn't using them in this way enable antibiotic resistance?

Thank you so much for your help!

submitted by /u/TwentyfootAngels
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Does salting fields even do anything?

Posted: 05 May 2018 08:05 AM PDT

It has been a military tactic for millennia, but does it have any effect?

submitted by /u/TomHicks
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Do astronauts turn in their sleep?

Posted: 05 May 2018 03:01 AM PDT

People who are unconcious have to be turned or they get bed sores. Healthy people while sleeping turn them selves without waking. Does that instinct/behaviour persist when there's no gravity?

submitted by /u/Scourge31
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Why there are food-grade silicone, if pure silicone is inherently non-toxic?

Posted: 05 May 2018 06:21 AM PDT

What makes cocaine cardiotoxic? How does it damage the heart?

Posted: 04 May 2018 11:42 PM PDT

How do graphing calculators (like Desmos or GeoGebra) work?

Posted: 05 May 2018 07:43 AM PDT

What method/algorithm is used to solve complex transcendental equations? What exactly goes on inside the ALU when an equation is being plotted?

submitted by /u/Normal_Human-Being
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What is charge-shift bonding?

Posted: 05 May 2018 06:28 AM PDT

I read through some papers but still do not understand it. Does it means that molecules with significant charge-shift bonding exists primarily in a resonance structure? Also, how far is this theory accepted in the scientific community? Why isn't this being taught in the curriculum?

submitted by /u/pointamelnia
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Is it possible to 'repair' an artificially degraded attention span?

Posted: 04 May 2018 12:56 PM PDT

ADHD specialised psychiatrist Edward Hallowell, amongst many other observers, suggests chronic multi-taskers or media/internet consumers often have reduced attention spans or ability to focus.

Anecdotally, this has been the case for me also. I was an avid reader as a child and could consume books start to finish in a sitting, but as an adult I often struggle to read a single page or article without my mind constantly wandering to irrelevant tangents, despite conscious attempts to focus.

It is debilitating to me as a student with copious amounts of reading to do and I find myself curious: Is it possible to reverse the perceived effects of mass media consumption on attention-span?

submitted by /u/Limerick_Goblin
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does the amount of tension a wire is under affect its ability to conduct electricity?

Posted: 05 May 2018 05:14 AM PDT

If so is it only to a minute extent?

submitted by /u/timrs
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Is Cancer getting more common among people or is it because we are able to diagnose it more properly?

Posted: 04 May 2018 08:56 PM PDT

These days I'm seing a lot of news about about healthy people getting cancer.

It feels like all the polution and the talk of phone signals' radiation may have a role in making it more common.

I am not sure that it is statistically true though.

I wanna ask the research community is cancer really becoming more common?

submitted by /u/Phenkoaway
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Can your genes change throughout the course of your life?

Posted: 04 May 2018 05:33 PM PDT

I know that certain factors such as radiation can change your genetic makeup, but does your DNA change on its own or it is the same throughout life?

submitted by /u/SilverCloud73
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How do palaeontologists and/or archaeologists know where to dig as opposed to poking holes in the ground randomly in a hail Mary attempt to discover new things?

Posted: 04 May 2018 01:10 PM PDT

Specially paleoguys that find fossils out in the desert.

submitted by /u/_Cannib4l_
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Why do some flowers open up in the day and fold up at night, instead of just remaining open all the time?

Posted: 04 May 2018 10:22 AM PDT

What does Neglis mean?

Posted: 05 May 2018 12:53 AM PDT

My girlfriend is reading a book where a character has "Neglis". Google tells me this is aplastic anaemia but I have never heard it be called Neglis before, so I assume this is an American term.

What I cannot find is why it is called so. Is it eponymous or what?

submitted by /u/HideYourloveaway
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Do smaller processor manufacturing processes (7nm lithography for example) wear out faster?

Posted: 04 May 2018 01:14 PM PDT

I have no idea of materials and how they are used (except silicon wafers), especially their endurance over-time. And it kind of got me thinking if less material is used for the transistors making up the processor, wont it sort of have less resistance to everything happening to it?

submitted by /u/Chromiczlul
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Do all tsunamis travel at around the same speed? If not, what dictates how quickly they move (other than water depth)?

Posted: 04 May 2018 01:13 PM PDT

Hey! First time posting here. Just have a few questions about tsunamis that I've always had but just now getting around to asking:

Do all tsunamis travel at around the same speed? If not, what dictates how quickly they move (other than water depth)?

Also would like to know how waves differ based on their origin (like impact, landslide, earthquake (and any others I don't know about)).

Was recently thinking about Kilauea (because eruption) and wanted to know more about a flank collapse (I think that's what you call it).

I know there's evidence on Lanai of a HUGE wave. Like 1,500 feet I think. And there was that landslide in Lituya Bay. But how far/quickly do waves like that travel in the open ocean?

Sorry that this is so scattered. I LOVE this kinda stuff but don't know much about physics or math.

Thanks!

submitted by /u/RIPTiangong-1
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If two cranes/hoists have the same capacity, are they able to lift double the weight when combined?

Posted: 04 May 2018 12:11 PM PDT

Example: If there are two 2-ton cranes attached to a single object, is their combined lifting capacity 4 tons?

submitted by /u/corkyr
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