How accurate is the amount of a medicine in a pill (is 20 milligrams of Aspirin really 20 milligrams)? | AskScience Blog

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Wednesday, November 7, 2018

How accurate is the amount of a medicine in a pill (is 20 milligrams of Aspirin really 20 milligrams)?

How accurate is the amount of a medicine in a pill (is 20 milligrams of Aspirin really 20 milligrams)?


How accurate is the amount of a medicine in a pill (is 20 milligrams of Aspirin really 20 milligrams)?

Posted: 06 Nov 2018 05:40 PM PST

If something has no rest mass does that mean it must be travelling at the speed of light?

Posted: 07 Nov 2018 06:02 AM PST

How does the ozone layer heal itself?

Posted: 06 Nov 2018 05:23 PM PST

What determines which areas of the brain are damaged during hypoxia?

Posted: 07 Nov 2018 04:53 AM PST

When the blood and oxygen supply is cut off to the brain what determines which regions of the brain are damaged? Does the motor cortex tend to be more susceptible to damage because in states of hypoxia the body is trying to move?

submitted by /u/aboughtcusto
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Why do wind farms use the horizontal axis blades that have to face the wind instead of vertical ones that capture wind in all directions? (Examples in comment)

Posted: 07 Nov 2018 06:21 AM PST

Traditional horizontal axis https://imgur.com/gallery/nIFOgee

Rarely used vertical axis https://imgur.com/gallery/Cny1Hys

I'm assuming it has to do with efficiency but does anyone know actual ratings? What's the most efficient vertical turbine and how does that efficiency compare to traditional ones? Is it half as efficient? Is it better than half?

When is a vertical a better option?

Thanks!

submitted by /u/MichaelApproved
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Has anyone tried to figure out where our solar system came from, and which other nearby solar systems originated from the same supernova?

Posted: 07 Nov 2018 06:04 AM PST

So, in the scale of billions of years, is it even possible yet to figure out which larger star or stars our system came from, and who are our brothers and sisters on the cosmic scale?

submitted by /u/vxxed
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Does a light beam emitted from a laterally moving source have "sideways" movement, or only straight?

Posted: 07 Nov 2018 07:02 AM PST

I understand that light emitted from a source traveling at n speed (toward the observer) will still move at only c speed (not c + n speed). But how will a light beam act when emitted from a source moving lateral to the [stationary] observer?

If I fire a gun from a moving platform, at a stationary target, I have to fire before my sight cross the target, because my lateral movement is imparted to the bullet that leaves the muzzle.

But how about a beam of light? Does a lateral moving source add lateral movement to the light? Or does a photon, once emitted, travel in a strictly straight line from its source?

submitted by /u/Bullgrit
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Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology

Posted: 07 Nov 2018 07:11 AM PST

Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology

Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...".

Asking Questions:

Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions.

The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists.

Answering Questions:

Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience.

If you would like to become a member of the AskScience panel, please refer to the information provided here.

Past AskAnythingWednesday posts can be found here.

Ask away!

submitted by /u/AutoModerator
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Why do electrical outlets sometimes send sparks or jolts when plugging or unplugging?

Posted: 06 Nov 2018 11:36 PM PST

It doesn't seem consistent, so I'm wondering what factors make it more likely.

submitted by /u/TerrytheTickleFairy
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Do sharks really have to keep swimming to breath if so why?

Posted: 06 Nov 2018 05:34 PM PST

Swim swim

submitted by /u/deathangel357
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Why do very tall/small people not live as long as the average height person?

Posted: 06 Nov 2018 10:48 PM PST

What is the reason behind ozone layer depletion?

Posted: 07 Nov 2018 02:31 AM PST

In terms of the standing-wave model of electrons, what are chemical bonds?

Posted: 07 Nov 2018 05:27 AM PST

Title says it all really.

I don't really know anything about orbital shapes other than what I've read here, so if they have anything to do with it you may have to walk me through it lol. But I always wondered what caused atoms to bond, is it like constructive superpositions? Or is that a no-no for matter.

Edit: in the title I meant electron orbits, not just electrons themselves, though I guess it still kind of works

submitted by /u/Mitch_Pinder
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What happens if you integrate over the delta distribution and the arguments of it gets zero at one of the integration limits?

Posted: 07 Nov 2018 05:05 AM PST

at my theoretical electrodynamics tutorial last week, the tutor just said that if thats the case, weird things happen but he didnt bother to elaborate further but now im curious

thanks in advance for the answers

submitted by /u/KippieDaoud
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Are atoms considered fluid or solid?

Posted: 07 Nov 2018 04:01 AM PST

I understand that it depends on the attraction between the atoms to deter main solid and fluid but if you needed to classify a single atoms what would you do? 2bd question, are protons neutrons and electrons solid or fluid.

submitted by /u/EnoDevz
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How are extra-galactic gamma rays detected and imaged?

Posted: 07 Nov 2018 02:18 AM PST

I'm a bachelor student in astrophysics and in one of our classes about detecting and measuring intensities of EM-waves we saw that gammarays are not detectable with optical telescopes because the mirrors would simply absorb the gammafotons. What device or technique is used to form an image? And why can't a CCD-camera be used for such observations?

EDIT: I've done some more research and it seems like they use scintilationdetectors.

submitted by /u/aHaloGod
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What are the ways heavy elements get created?

Posted: 06 Nov 2018 04:37 PM PST

I learned that heavy elements are created in stars and distributed through the universe by novas in grade school. Sometime after that I became aware that red giants dissipate with age, and it seems that some of that material must be heavy elements. In the last year or two, I've read about neutron star mergers scattering large amounts of heavy elements. What other ways exist? Do the jets from the galactic black holes also transform the material they eject into heavier elements?

submitted by /u/dbtng
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What to sea life happens when a lightning bolts hit the sea?

Posted: 06 Nov 2018 08:20 AM PST

What is the role sugar plays in our bodies in relation to cancer?

Posted: 06 Nov 2018 10:19 AM PST

Would a fusion reactor that utilizes only hydrogen, with no need for deuterium or helium3, be feasible?

Posted: 06 Nov 2018 10:40 AM PST

I am aware that the sun uses this method, and that it takes millions of years for it to work, but are there any theories or proposals for an artificial process like this that is more expedient?

submitted by /u/awsomesawsome
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What is Gram Staining and why is it useful to distinguish between gram +ve and gram-ve bacteria?

Posted: 06 Nov 2018 09:24 AM PST

How does lead get in water from pipes? Can lead be filtered out of water?

Posted: 06 Nov 2018 10:44 AM PST

Can lead molecules be filtered out of drinking water?

A quick Google search revealed that, yes, it can be filtered out. If so, why haven't schools and public institutions (Flint, MI) installed filters as a temporary fix until the pipes can be replaced?

submitted by /u/sellwinerugs
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