How did flowers and plants reproduce before there existed bees? |
- How did flowers and plants reproduce before there existed bees?
- I get that bees are essential to an ecosystem, but do wasps/hornets do literally anything useful in that sense?
- Has any non-human species succeeded in domesticating another species? Not mutualism, but actual domestication?
- What's the difference between the piezoelectric effect vs what we know about time crystals?
- Instead of waiting for an eruption of a vulcano, why not drill a hole in it to release the pressure?
- 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?
- Does salting fields even do anything?
- Do astronauts turn in their sleep?
- Why there are food-grade silicone, if pure silicone is inherently non-toxic?
- What makes cocaine cardiotoxic? How does it damage the heart?
- How do graphing calculators (like Desmos or GeoGebra) work?
- What is charge-shift bonding?
- Is it possible to 'repair' an artificially degraded attention span?
- does the amount of tension a wire is under affect its ability to conduct electricity?
- Is Cancer getting more common among people or is it because we are able to diagnose it more properly?
- Can your genes change throughout the course of your life?
- 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?
- Why do some flowers open up in the day and fold up at night, instead of just remaining open all the time?
- What does Neglis mean?
- Do smaller processor manufacturing processes (7nm lithography for example) wear out faster?
- Do all tsunamis travel at around the same speed? If not, what dictates how quickly they move (other than water depth)?
- If two cranes/hoists have the same capacity, are they able to lift double the weight when combined?
| 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;) [link] [comments]  |
| Posted: 05 May 2018 04:51 AM PDT |
| 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. [link] [comments]  |
| 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)? [link] [comments]  |
| 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 |
| 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! [link] [comments]  |
| 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? [link] [comments]  |
| 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? [link] [comments]  |
| 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? [link] [comments]  |
| 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? [link] [comments]  |
| 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? [link] [comments]  |
| does the amount of tension a wire is under affect its ability to conduct electricity? Posted: 05 May 2018 05:14 AM PDT |
| 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? [link] [comments]  |
| 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? [link] [comments]  |
| Posted: 04 May 2018 01:10 PM PDT Specially paleoguys that find fossils out in the desert. [link] [comments]  |
| Posted: 04 May 2018 10:22 AM PDT |
| 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? [link] [comments]  |
| 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? [link] [comments]  |
| 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! [link] [comments]  |
| 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? [link] [comments]  |
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