How do cicada's harden their exoskeleton so quickly after molting? What is the actual bio process from soft to hard? | AskScience Blog

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Tuesday, May 18, 2021

How do cicada's harden their exoskeleton so quickly after molting? What is the actual bio process from soft to hard?

How do cicada's harden their exoskeleton so quickly after molting? What is the actual bio process from soft to hard?


How do cicada's harden their exoskeleton so quickly after molting? What is the actual bio process from soft to hard?

Posted: 18 May 2021 07:32 AM PDT

Does light have any kind of maximum resolution?

Posted: 17 May 2021 07:28 PM PDT

I'm thinking about light and space and stars, etc. Like looking at a star - if a star is 10 lightyears away, we are looking at that star as it was 10 years ago. So if you could build an incredibly advanced telescope you could look at the surface of that star as it was 10 years ago.

That would mean you could do the same from earth. If we had a telescope 10 lightyears away, could we look at things from earth at that time? Could you theoretically watch the 2008 Olympics from a telescope far enough away? Or basically be able to look back in time indefinitely?

It's crazy to think that basically everything that has happened is broadcasting images of itself through the universe.

submitted by /u/DrSpaceman575
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Does the amount of exposure to a virus always directly correlate to the severity of the illness?

Posted: 17 May 2021 04:35 PM PDT

For example, if my children have a cold-type illness, (runny nose, sore throat etc) and I'm their primary caretaker, does that result in a more severe illness for me than for my spouse who works out of the house?

(I've tried researching this, but everything is coming up with Covid-related answers)

submitted by /u/PLB991
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How do we know the source of petroleum is from decomposed organisms?

Posted: 17 May 2021 09:51 PM PDT

What makes this source so much likelier than an abiogenic source? Is it because any hydrocarbons found on Earth are much more likely to have come from organic matter? Thanks!

submitted by /u/Thesilence_z
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Why aren't misfolded proteins like amyloid degraded by our cells?

Posted: 17 May 2021 02:38 PM PDT

Apparently there are things called proteasomes, which are basically like giant shredders for proteins that are recognized as misfolded and therefore tagged for destruction by 'ubiquitins'. So why / how do things like amyloid or prion protein evade this? Do they just accumulate too fast or is there another mechanism?

submitted by /u/nickoskal024
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In herbivores, cellulose digestion is facilitated by symbiotic bacteria in the gut. Would it be possible to transplant herbivore gut microbiota to a carnivore's or omnivore's gut to allow them to digest plant material?

Posted: 17 May 2021 08:13 AM PDT

How would a small fall effect you if you were shrunken down?

Posted: 18 May 2021 01:21 AM PDT

If a person was shrunken down honey i shrunk the kids style, how would a fall of 1 foot fell? For this question im assuming the weight is also reduced.

submitted by /u/GingerShrimp40
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It's broadly accepted that all life on earth shares a common ancestor. does this mean the origin of life only happened once? or did life start multiple times and our current tree of life is a result of the one organism that outcompeted the rest?

Posted: 17 May 2021 07:44 AM PDT

Does wearing Hi-Visibility Gear make any difference in broad daylight conditions in regards to work safety?

Posted: 17 May 2021 09:00 AM PDT

Theoretically, how much propulsion would we have to strap onto the earth to push it off its orbit?

Posted: 17 May 2021 10:49 AM PDT

I'm trying to make the motherland the motherSHIP. You feel me?

submitted by /u/DasaniMessiah
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Do comets have "tails" that project in front of them as they travel away from a star?

Posted: 17 May 2021 04:20 PM PDT

I know that the "tail" of comets is normally only observed trailing behind it as one approaches a star and its icy contents become heated into vapors and gases. Does the same phenomenon happen when the comet is on the part of its orbit taking it away from the star? If so, does the comet itself travel through it? I'm not sure how best to word my question but I believe I'm getting the idea across

submitted by /u/mandelbomber
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Where does mould and mildew get its energy from when growing on inorganic materials?

Posted: 17 May 2021 09:29 AM PDT

They seem to grow on any surface and any conditions, including the dark. That rules out photosynthesis. They grow on surfaces like glass, ceramic, and plastics, which have no nutrient values.

How do they survive? How do they thrive?

submitted by /u/I_AM_YOUR_MOTHERR
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Do people with extra chromosomes (Downs, Klinefelter's, etc) have any differences at the cellular level due to the excess amount of DNA?

Posted: 17 May 2021 11:20 AM PDT

I assume most of the issues associated with extra chromosomes has to do with gene expression and epigenetics, but the packaging of genetic material is also really complex and applies a huge osmotic pressure on the nucleus. Are there any differences at the cellular level just due to the extra mass and volume of DNA and its affect on the folding/packaging machinery of the nucleus?

submitted by /u/iorgfeflkd
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I know that this is a specific question. But can we use viral particles (for example coranavirus spike protein) to enter in a cell by endocytosis?

Posted: 17 May 2021 02:44 PM PDT

If this is already done, can you pass me the articles? I can't find it on pubmed....

submitted by /u/Ok_Phrase_2425
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What is the most interesting thing that has been observed from space dust?

Posted: 17 May 2021 07:37 AM PDT

Use hubble to photograph Voyager?

Posted: 17 May 2021 08:07 AM PDT

Is it possible to use a deep space telescope like the hubble to snap a photo of the Voyager probe or would it be too small to pinpoint?

submitted by /u/Slayr79
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Air is a mixture of different gasses, how can our lungs separate oxygen from other gasses, while we breathing?

Posted: 17 May 2021 04:24 AM PDT

What's is actually occuring to metallic crystal lattice matrices when you polish precious/soft metals???

Posted: 17 May 2021 11:59 AM PDT

Sorry in advance if I use the wrong flair for this post. There was no "metallurgy" or "materials science" tag

I'm a coin collector. And I've seen silver and gold in grades ranging from "looks like someone ran this over with a car for pleasure", to mirror like deep proof finishes on certain coins and bullion.

I understand most coins aren't "polished," to achieve that mirror like effect you see in some high grade bullion or mint state coins. It's the die pressing to create a very shiny field.

But that's about all I know.

When metal is shiny verses when it looks "rough" like mild steel vs .999 silver, what exactly is happening to the lattice structure of the crystal matrices to create the gradient from rough or "satin" to mirror like?

Are the rough crystal edges being compressed enough to push the molecules closer together to reflect light rather than refract it?

Sorry if not much of that made sense. English isn't my first language... No it is I'm just kind of dumb.

Thanks in advance!

submitted by /u/CACTUS_VISIONS
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Is learning more effective when you do it closer to sleeping or does it not matter?

Posted: 17 May 2021 02:15 AM PDT

My understanding is sleep plays a role in consolidating what you've learned throughout the day (possibly a wrong assumption), which got me wondering if 'learning' is more effective when done closer to sleep?

By learning I mean either practicing a mechanical skill or studying something.

submitted by /u/TheSpaghettiEmperor
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Do animals have regional dialects?

Posted: 16 May 2021 08:41 PM PDT

For example does a wolf in Europe bark differently than a wolf in Canada? Does a bull in Mexico have a different body language than a bull in America? Does it mostly result from genetics or is it a learned behavior from the mother?

submitted by /u/pythonProgrammer101
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