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Archived threads in /sci/ - Science & Math - 740. page

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https://www.newscientist.com/article/2123973-first-results-of-crispr-gene-editing-of-normal-embryos-released/

A team in China has corrected genetic mutations in at least some of the cells in three normal human embryos using the CRISPR genome editing technique. The latest study is the first to describe the results of using CRISPR in viable human embryos, New Scientist can reveal.

While this study – which attempted to repair the DNA of six embryos in total – was very small, the results suggest CRISPR works much better in normal embryos than it did in previous tests on abnormal embryos that could not develop into children.
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based china
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>>8743200
>>8743193

I am literally going to celebrate for 7 days straight when China announces the birth of the first genetic engineered human.

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explain this whitey boi
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sage

a thread died for this
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Are these numbers right or just cherry picked?
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>>8743124
Spooky

I'VE GOT A QUESTION FOR YOU PEOPLE

Is math unquestionable?Yes?No?Why?
Is it all invented bullshit?
6 posts and 2 images submitted.
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Is it really possible to plot that on a ti calculator?
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>>8743035
>YOU PEOPLE
Racist dumbfuck. Come back with better questions.
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Nice function...

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In a couple of years I will be an MD and I don't even remember how to do basic arithmetics with fractions and divide decimals. Is medicine a career for the so called "brainlet"?
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>>8743022
liar
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>>8743060
Here's a snap of my physiology textbook

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Which way is the rectangle facing? I cant figure it out, seems to be an illusion without some point of reference.
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>>8742553
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>>8742553
It's not a rectangle.

It's a parallelogram.
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>>8742553
It's not an optical illusion, but it looks like one.

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>Dragon manned mission scheduled for May 2018
>Starliner manned mission scheduled for August 2018

Who will actually pull it off first?
231 posts and 19 images submitted.
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How exactly is this profitable for these guys?
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>>8742524
NASA is paying hundreds of millions so that they jump through their hoops
SpaceX would do it much faster otherwise
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>>8742524
Because NASA wants to pay them marginally less than they're paying Soyuz and Soyuz prices have gone up like 300% since the Space Shuttle retired

Dude just destroyed hyperloop pseudoscience!

https://www.youtube.com/watch?v=Z48pSwiDLIM
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Just? He's destroyed it for probably a year now lol
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>>8742413
This

I think maybe more than a year at this point

Is space x just some of publicity stunt to get advertising money or something?
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>>8742407
We have tech that can withstand 1,000atm at the bottom of the Mariana Trench. I'm sure 1atm wouldn't be a problem and isn't for tanks designed for it, which there are. Also, the tank he shows is designed to hold pressure, not keep pressure out:

https://www.youtube.com/watch?v=0N17tEW_WEU

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What did /sci/ think of Steins;gate?
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Of what?
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fapbait weeb trash
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Good anime. Still a meme, dont be like the autistic faggot who a couple threads ago decided their major based on the anime.

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Is mental math really related to intelligence?
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>>8742316
Mental math is about two things: How much information can you retain, and how good you are at optimizing your thoughts. I call this optimization "IQ Jumping".

Here is a good mental math problem for you to practice. Don't write down ANYTHING. Try to reason entirely in your mind. With this example it will be clear that retention and IQ Jumping are the two main characteristics of intelligence.

Let f be a function defined on all real numbers such that f(x+y) = f(x) + f(y) for all real numbers, x and y.

Level 1: Prove that f(0) must be equal to 0
Level 2: Prove that f(-x) = -f(x), for all x
Level 3: Prove that if f(1) = k, then f(n) = kn, for all natural numbers n
Level 4: Prove that if f(1) = k, then f(n) = kn for all Integers n.
Level 5: Prove that if f(1) = k, then f(n) = kn for all Rationals n.
Level 6: Assume that f(x) is a continuous function and that f(1) = k. Prove that f(n) = kn for all real numbers
Level 7: Prove that f(x) must always be a continuous function

For Level 1 all you have to do is retain information. You have to keep in mind that f(x+y) = f(x) + f(y) and use that to reach the conclusion. Simple.

For Level 2 there are two ways. You could retain all the information. Or you could first retain only the hypothesis, prove a result from it, then forget about the hypothesis and retain only your result and then prove the conclusion.

I call this "IQ Jumping". It is when you optimize your brain processes by retaining only the newest information and forgetting about everything else. It is as if you are jumping from point to point.

Level 3 I believe can also be done without IQ Jumping, but IQ Jumping is very important.

Level 4 the same.

Level 5 is, I believe, when it gets interesting. I do not believe that it is possible for a human to retain that much information. So from Level 5 and onwards you HAVE to do IQ Jumping.
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>>8742316
>Level 7: Prove that f(x) must always be a continuous function

Oh wait. Correction:

Assume that f(x) is continuous at x=0. Then prove that f(x) must be a continuous function.
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>>8742316
No

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It's possible to die with a single punch in the head /sci? Did this guy die? I'm disturbed.

https://www.liveleak.com/view?i=ff9_1439380897
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>>8742206


Yes , its actually not that rare for people to die from a single punch.

I cant say for sure that he died but that guy who tried to give him CPR is definitely retarded.
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>>8742220
People dying after getting punched and hitting their head on a hard surface is not that difficult, but from a single direct punch is new for me...
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>>8742206
Yes, also you may also live and get permanent brain damage, like not being able to move or talk normally ever again
T. work with neuro patients

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I've got a question for psychologists here.
So, I wasn't able to find any good literature that fully answers my question, even though my question seems to be an obvious one.
So, here is a popular statement: "All fears are the same fear, the fear of death".
Is it a theory? Is it some imperative obvious knowledge, that all psychologists are agreed about? Or is it just some bullshit?
And if that's true, can we say that the fear of death and the fear of the unknown are interchangeable? Like one hand we fear the unknown because we don't know whether it's gonna kill us, but on other hand we fear death because we don't know what happens after we die.
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>>8741929
>psychology
>/sci/
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>>8741945
I knew this gonna happen...
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So...
Anyone?

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>"the explanation is left as an exercise for the reader..."
>exercises have no solutions
>tfw you will never know whether you are answer is correct or not
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>>8741840
Thing with math is that if you find the result wanted it's fair to assume you're right.
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>>8741845
Nope. For example, if an exercise asks for a proof, you can offer a proof that is not valid/rigorous but claims the same thing as was supposed to be claimed.
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>no worked examples
>no solutions
>"proof is left to the reader"
>exam is nothing like the assignments/problem sets
>class average is <40%
>mind_slowly_drifting_to_the_abyss.ogg

Does /sci/ like nutrition and dietetics?
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Look at the number of replies in this thread. Literally tells everything.
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nutrition '''''''''''''''''''''''''''''''''science'''''''''''''''''''''''''''''
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/fit/ here. Rate my diet and supplementation
>diet: Brown rice, whole wheat pasta, sweet potatoes, lean beef, baked chicken, tilapia, salmon, egg whites, broccoli, carrots, blueberries, watermelon, grapes
>supps: orange triad multivitamin daily
>3g fish oil daily
>5g creatine monohydrate daily
>Ashwagandha 3g per day
>Testosterone enanthate 200mg per week split into 2 doses

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How do they minimize that error? I don't get it.

Doing the derivative of the integral respect to M(w) and equating to zero doesn't drop the same result.
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>>8741670
try lowering the luminosity
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>>8741676
So funny my friend.
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You're differentiating it wrongly.

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Writing a book and need to keep it as accurate as possible. I'm trying to realistically portray a death with benzos/drugs like clonazepam.

So, say, if a woman (under 145lb) were to take 80mg of clonazepam and chased it with a bottle of wine or a couple of shots of vodka... Would that kill her?

Please show no concern, anon. Again, this for a story I'm writing.
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For more info on the character, she's 5'6'-5-7, between 125 to 145lb. Most likely 130lb.
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>>8741456
>character
>book
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>>8741456
>concern
I wish this were something you would have to worry about here. It is good you phrased it that way because no answers are still better than a /suicide/ thread with no one talking with expertise or from experience.
Anyway 80 mg sounds like a lot. You probably do not even need the alcohol. But I don't know what exactly would end up killing you.

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