What would happen if a helicopter just kept going upwards until it couldn’t anymore? At what point/for what reason would it stop going up? | AskScience Blog

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Monday, July 5, 2021

What would happen if a helicopter just kept going upwards until it couldn’t anymore? At what point/for what reason would it stop going up?

What would happen if a helicopter just kept going upwards until it couldn’t anymore? At what point/for what reason would it stop going up?


What would happen if a helicopter just kept going upwards until it couldn’t anymore? At what point/for what reason would it stop going up?

Posted: 04 Jul 2021 10:43 PM PDT

How much does sleep affect the efficiency of the vaccine – and the quality of our immune system in general?

Posted: 05 Jul 2021 12:57 AM PDT

I know that sleep is an important cornerstone of good health (and our immune systems) but wanted to learn more about how it might affect the efficiency of, say, the Pfizer vaccine? My definition of bad sleep would be personal/anecdotal, i.e. sleeping 5-6 hours because of the heat and then feeling a bit tired when I wake up (still being able to work, exercise, etc). Slightly worried I'm not giving the vaccine a good chance of working well!

submitted by /u/nobblan
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How and when were Australia's deserts formed?

Posted: 04 Jul 2021 04:12 AM PDT

https://www.abc.net.au/news/2015-10-01/australian-deserts-young-but-monsoon-is-old-new-study-shows/6821154 says they're 1.5 million years old, but news outlets aren't a reliable source regarding science, and that seems counterintuitive to me seeing as the Sahara formed 6000 years ago.

submitted by /u/ZealousidealFox1
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Other than spike protein, does modified Ad26 virus used in J&J vaccine also produce the other proteins produced by wild type Ad26 virus?

Posted: 04 Jul 2021 03:46 PM PDT

Is it possible to physically measure pain levels?

Posted: 04 Jul 2021 12:27 AM PDT

So everyone has a different tolerance to pain, right? But why? Is it because of a difference in how the brain process the pain "signals"? Or is it because the pain signal itself is more intense? Hence the question: if pain is an "electrical signal" through the nervous system, is it possible to measure it in, say, miliAmperes?

submitted by /u/eskel26
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How can cortisol help treat phobic anxiety if its associated with fight or flight response?

Posted: 04 Jul 2021 02:00 AM PDT

why can we find so little fossil specimens for some species that went extinct a few million years ago(andrewsarchus, gigantopithecus) but so many fossils from dinosaurs?

Posted: 04 Jul 2021 12:42 AM PDT

Why do we take oral antibiotics for localized infections?

Posted: 03 Jul 2021 11:01 PM PDT

Considering how important the microbiome all over our bodies is, why is the go to treatment for any infection oral antibiotics that hit the entire body, rather than something, say, injected directly into the site of the infection for a cyst or something?

I know topical antibiotics exist, but don't work for anything too far below the skin surface. I understand why oral antibiotics would be needed for something in internal organs, like a lung infection, but why isn't the go to for an infected wound that isn't systemic - no fever or anything - an injection over something that effects every system in the body by way of the gut?

Are there more targeted antibiotic treatments in development to avoid these issues?

submitted by /u/psychopompandparade
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What proportion of a cell's volume is taken up by the nucleus and other major artefacts, and how much variation is there between different types of cells?

Posted: 04 Jul 2021 01:50 AM PDT

Alternatively, if thought of in 2D, or viewed in a plane, what proportion would these be (easier to conceptualize than volume ratios)? What evolutionary purpose would varying these ratios serve? Thanks!

submitted by /u/warpedspockclone
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Why do stick insects rock back and forth?

Posted: 04 Jul 2021 12:29 AM PDT

What ignites fires in the ocean when a pipeline leaks?

Posted: 03 Jul 2021 10:56 AM PDT

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