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/sci/ - Science, Technology, Engineering, and Mathematics

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Anonymous 16/05/13(Fri)12:06 No. 16317 ID: 11a71b [Reply]

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Anonymous 16/06/05(Sun)04:59 No. 16324 ID: 171656

Science Fiction, but still fun.

Actually there was important point brought up about the micro-ARC power source in the first Avengers movie: Loki is unable to use his tesseract-based mindwarp staff on Tony. Tony's "new element" is tesseract-like technology. I suspect he's discovered the molecules that the stones of power are made from, but not yet achieved their level of energy concentration.

As for the second movie's retconnning that the staff is actually powered the mind stone... I guess the only way to make sense of it is that all the stones have a technological similarity.

Anonymous 16/06/06(Mon)15:08 No. 16325 ID: b6f1ac

>Loki is unable to use his tesseract-based mindwarp staff on Tony. Tony's "new element" is tesseract-like technology.

It was because Loki was poking Tony in the Arc, not his actual body (notice the audible 'chink' when they connect). If Loki had been two inches to the right he would have succeeded.

World's simplest impossible puzzle Anonymous 16/05/26(Thu)13:05 No. 16323 ID: 7995e9 [Reply]

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It is just impossible...try and you will know....

30seconds of mathematical fun.. Kiokio 16/05/20(Fri)20:43 No. 16322 ID: 7995e9 [Reply]

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This looks so very easy but again another impossible puzzle Typee 16/05/19(Thu)23:31 No. 16321 ID: 7995e9 [Reply]

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An impossible trick puzzle Typee 16/05/16(Mon)22:00 No. 16319 ID: 7995e9 [Reply]

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Anonymous 16/05/19(Thu)08:25 No. 16320 ID: ca3ceb

Did it. Was a good way to spend five minutes.

The author of laws of The Universe enslaved Joshua Paul Lee Roy bietz MD Neurochemist from The Universe 16/04/08(Fri)11:35 No. 16313 ID: 49a742 [Reply]

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There resides a viable organism to be let live according to genetics testing laws of The Universe with a hostile takeover example wherein I had questionable ethical or moral fortitude and was anonymous and that for cloning purposes and operative without government affiliation qualified as one neuron owning The Universe is alone at 2849 Pannell Road Social Circle, Georgia 30025-3317 Los Ustados Unidos (the macromolecular quantum states and varied states of mind united in the melting pot) North America The Earth The Solar system The Taurus Arm of The Milky Way Galaxy The Milky Way Galaxy The Universe

plane Anonymous 12/11/18(Sun)21:09 No. 14427 ID: fb908a [Reply]

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Hi /sci/, I'm making a concept of a electric jet. What would you use as a energy storage. It should contain 3 MW/h and weight less then 400 kg.

20 posts and 2 images omitted. Click Reply to view.
Anonymous 15/11/14(Sat)20:08 No. 16241 ID: 53eae2

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When in doubt, go with nuclear.

Anonymous 15/12/05(Sat)20:23 No. 16251 ID: bc19dd

Why wait until you're in doubt? You should always be going nuclear.

Anonymous 16/04/07(Thu)22:14 No. 16311 ID: ae6330

This is Impossible
Even Creating a basic Jet Engine is complicated. You cannot possibly make this shit without Einstein's brain

help mfats222 16/04/06(Wed)06:01 No. 16309 ID: 9027ad [Reply]

Youtube  What could replace Manganese (IV) Dioxide as an oxidizing agent in a redox reaction? Possibly Dichloromethane?

Anonymous 15/11/18(Wed)03:31 No. 16244 ID: dd0d0b [Reply]

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Is STEM good to go into if I like working with yes or no answers. I dislike working with stuff such English where there are many different viable answers.

1 post omitted. Click Reply to view.
Anonymous 15/11/25(Wed)03:16 No. 16250 ID: e9dfb1

Actually, although it's usually not possible to find the "best" answer, often it's possible to discern the plainly "wrong" answers, and occasionally two answers can be compared and the "better" answer can be determined unequivocally.
For example, even if I can't prove than an algorithm is correct, if I can come up with various tests that would tell me without question that it is incorrect, and all of them fail, perhaps I can have more confidence in its potential correctness.

Anonymous 16/03/20(Sun)07:03 No. 16303 ID: 4439d2

This should be less a question of "What kind of answers do I like?" and more of a question of "What kind of questions do I like?"

In the world beyond high school, it comes down to a lot more self guidance. You might have instructors asking you questions in early undergrad that have definite answers.

But you're going to get to the point where no one can lead you to the questions you have to answer any longer, and you need to come up with the questions too.

Also, many STEM fields have no Yes/No answers, as it becomes much more of a Why/How/When quandary.

Anonymous 16/04/04(Mon)09:53 No. 16307 ID: aee2e1


Someone ought to tell reddit

Artificial sweeteners Anonymous 16/02/21(Sun)10:07 No. 16288 ID: f705da [Reply]

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Supposing a given artificial sweetener -- say, saccharine or aspartame -- was a carcinogen, what kind of cancer would it produce and by what mechanism?
If this question is too hypothetical to answer, by what mechanism would ingesting a non-toxic chemical cause cancer?

Anonymous 16/02/23(Tue)01:38 No. 16289 ID: 0500c2

Cancer is caused by some kind of mechanism damaging the DNA of cells on contact, producing a random mutation.

Since we're talking ingestion, it would have to be some kind of gastrointestinal cancer, of which there are several varieties. We can eliminate mouth or throat cancer if we assume the chemical is inert in its base state and only becomes carcinogenic once altered by the process of digestion. That pretty much leaves colon cancer. It could happen if this altered chemical irritated or otherwise physically damaged the lining of the colon. Continued ingestion of this chemical would cause chronic irritation of the colon, in much the same way smoking does for the lungs. That could lead to cancer.

Note: You can create em-dashes by holding the alt key, pressing 0151 on the numpad,and then releasing the alt key, as demonstrated here: — . This is a superior alternative to using two en-dashes.

Anonymous 16/02/23(Tue)22:01 No. 16290 ID: d8da56

Okay, sure, but do we get from irritated tissue to mutated genetic material? I can understand how something like electromagnetic radiation, which can pass through matter and damage the molecular structure of DNA, could cause it, but how would a chemical do it? Is DNA directly exposed to chemicals being metabolized by or otherwise passing through cells such that it can react with them?

Anonymous 16/03/07(Mon)16:19 No. 16296 ID: cad79b

//are there even papers about knowledge of effects and constituents?

Earlier I asked for a suggestion for a question on the survey that would be important and policy reelvant in the immediate furutre. However, my interests have drifted as I'm getting more familiar with the general topic and the survye. I have found that many of the questions that do interest me onthe survey have been covered already in the literature,a nd the datanalsysies already done of the data from the sruvey(albeit in differnet years). My criterion for ideal project in impact, tractability and neglectness. I feel yes high impact and somewhat tractable (it has been hard to figure out a systematic review, since one relevant for the data often doesn't have papers enough to do, since if it ididn then it wouldn't be neglected enough to study interest me, which is the third criterion.

remember to check that I don't have to renaalse the data from toher papers if it doesn't already indicative something about knowledge --> politilca uspport..... maybe I shoulda.just pick like 3+ papers to search on

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